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/array-memsafety/cstrcspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:06:44,173 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:06:44,174 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:06:44,184 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:06:44,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:06:44,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:06:44,185 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:06:44,187 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:06:44,189 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:06:44,189 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:06:44,190 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:06:44,190 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:06:44,191 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:06:44,192 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:06:44,193 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:06:44,194 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:06:44,196 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:06:44,197 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:06:44,198 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:06:44,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:06:44,201 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 15:06:44,205 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 15:06:44,206 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 15:06:44,206 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 15:06:44,227 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:06:44,227 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:06:44,228 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:06:44,228 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:06:44,228 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:06:44,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:06:44,228 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:06:44,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:06:44,230 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:06:44,230 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:06:44,230 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:06:44,230 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:06:44,230 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:06:44,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:06:44,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:06:44,231 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:06:44,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:06:44,231 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 15:06:44,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:06:44,269 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:06:44,272 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:06:44,273 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:06:44,274 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:06:44,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,646 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6a378f12a [2018-04-11 15:06:44,769 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:06:44,769 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:06:44,769 INFO L168 CDTParser]: Scanning cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,778 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:06:44,778 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:06:44,778 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:06:44,778 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,778 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,778 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,779 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____key_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__ushort in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,780 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_long in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,781 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__ulong in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,782 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_short in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_char in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__off_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,783 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,784 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__size_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__div_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____u_long in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,785 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__time_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__key_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____u_short in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,786 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____id_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____u_char in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____time_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,787 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__register_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,788 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,789 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____off_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__uint in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____u_int in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,790 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i__id_t in cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:44,804 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6a378f12a [2018-04-11 15:06:44,807 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:06:44,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:06:44,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:06:44,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:06:44,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:06:44,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:06:44" (1/1) ... [2018-04-11 15:06:44,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0503c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:44, skipping insertion in model container [2018-04-11 15:06:44,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:06:44" (1/1) ... [2018-04-11 15:06:44,832 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:06:44,858 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:06:45,003 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:06:45,040 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:06:45,046 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 15:06:45,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45 WrapperNode [2018-04-11 15:06:45,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:06:45,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:06:45,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:06:45,075 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:06:45,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (1/1) ... [2018-04-11 15:06:45,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:06:45,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:06:45,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:06:45,106 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:06:45,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (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 15:06:45,191 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:06:45,191 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:06:45,191 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:06:45,191 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:06:45,191 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcspn [2018-04-11 15:06:45,191 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:06:45,191 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:06:45,191 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:06:45,191 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:06:45,191 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:06:45,191 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:06:45,191 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:06:45,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:06:45,193 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:06:45,194 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:06:45,195 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:06:45,196 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:06:45,197 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:06:45,198 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:06:45,199 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:06:45,200 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcspn [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 15:06:45,201 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:06:45,202 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:06:45,202 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 15:06:45,202 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:06:45,202 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:06:45,202 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:06:45,202 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 15:06:45,487 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:06:45,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:06:45 BoogieIcfgContainer [2018-04-11 15:06:45,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:06:45,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:06:45,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:06:45,490 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:06:45,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:06:44" (1/3) ... [2018-04-11 15:06:45,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ddf94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:06:45, skipping insertion in model container [2018-04-11 15:06:45,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:45" (2/3) ... [2018-04-11 15:06:45,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ddf94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:06:45, skipping insertion in model container [2018-04-11 15:06:45,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:06:45" (3/3) ... [2018-04-11 15:06:45,493 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:45,499 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:06:45,504 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-11 15:06:45,533 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:06:45,534 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:06:45,534 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:06:45,534 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:06:45,534 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:06:45,534 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:06:45,534 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:06:45,534 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:06:45,534 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:06:45,535 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:06:45,542 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-04-11 15:06:45,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 15:06:45,548 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:45,548 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:45,549 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:45,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700559, now seen corresponding path program 1 times [2018-04-11 15:06:45,552 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:45,552 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:45,581 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:45,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:45,581 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:45,623 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:45,636 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:45,636 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:45,636 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:45,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:45,669 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:45,700 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 15:06:45,701 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:45,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:45,705 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 15:06:45,722 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 12 treesize of output 11 [2018-04-11 15:06:45,722 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:45,726 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 15:06:45,727 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-11 15:06:45,739 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 15:06:45,740 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:45,740 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:06:45,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:06:45,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:06:45,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:06:45,751 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2018-04-11 15:06:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:45,861 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 15:06:45,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:06:45,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 15:06:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:45,871 INFO L225 Difference]: With dead ends: 57 [2018-04-11 15:06:45,871 INFO L226 Difference]: Without dead ends: 54 [2018-04-11 15:06:45,873 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:45,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-11 15:06:45,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-11 15:06:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-11 15:06:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-11 15:06:45,905 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2018-04-11 15:06:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:45,905 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-11 15:06:45,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:06:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-11 15:06:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 15:06:45,906 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:45,906 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:45,906 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:45,907 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700560, now seen corresponding path program 1 times [2018-04-11 15:06:45,907 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:45,907 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:45,908 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:45,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:45,908 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:45,929 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:45,938 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:45,938 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:45,938 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:45,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:45,970 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:45,977 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 15:06:45,978 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:45,987 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 15:06:45,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:45,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:45,998 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-11 15:06:46,026 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:46,028 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 15:06:46,028 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,041 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:46,042 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:46,043 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 15:06:46,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,051 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,052 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-11 15:06:46,062 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 15:06:46,062 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:06:46,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:06:46,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:06:46,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:06:46,064 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2018-04-11 15:06:46,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,171 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2018-04-11 15:06:46,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:06:46,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 15:06:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,174 INFO L225 Difference]: With dead ends: 71 [2018-04-11 15:06:46,174 INFO L226 Difference]: Without dead ends: 71 [2018-04-11 15:06:46,175 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:06:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-11 15:06:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2018-04-11 15:06:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 15:06:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2018-04-11 15:06:46,184 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 13 [2018-04-11 15:06:46,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,185 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2018-04-11 15:06:46,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:06:46,185 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2018-04-11 15:06:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 15:06:46,185 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,185 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:46,185 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,186 INFO L82 PathProgramCache]: Analyzing trace with hash -501259374, now seen corresponding path program 1 times [2018-04-11 15:06:46,186 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,186 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,186 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,186 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,197 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:46,204 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:46,205 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:46,205 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:46,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,236 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:46,247 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 15:06:46,247 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,254 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 15:06:46,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,259 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-11 15:06:46,277 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:46,278 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:46,278 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 15:06:46,278 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,290 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 15:06:46,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:46,317 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-11 15:06:46,329 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 15:06:46,329 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,330 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:06:46,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:06:46,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:06:46,330 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:06:46,330 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 6 states. [2018-04-11 15:06:46,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,423 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-04-11 15:06:46,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:06:46,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 15:06:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,424 INFO L225 Difference]: With dead ends: 59 [2018-04-11 15:06:46,424 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 15:06:46,424 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:06:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 15:06:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2018-04-11 15:06:46,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 15:06:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-04-11 15:06:46,428 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2018-04-11 15:06:46,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,428 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-04-11 15:06:46,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:06:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-04-11 15:06:46,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:06:46,429 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,429 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:46,429 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792117, now seen corresponding path program 1 times [2018-04-11 15:06:46,429 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,429 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,430 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,430 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,439 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:46,460 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 15:06:46,460 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:06:46,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:06:46,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:06:46,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:06:46,461 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 4 states. [2018-04-11 15:06:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,501 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2018-04-11 15:06:46,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:06:46,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 15:06:46,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,501 INFO L225 Difference]: With dead ends: 52 [2018-04-11 15:06:46,501 INFO L226 Difference]: Without dead ends: 52 [2018-04-11 15:06:46,502 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-11 15:06:46,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-11 15:06:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 15:06:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-04-11 15:06:46,504 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 14 [2018-04-11 15:06:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,504 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-04-11 15:06:46,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:06:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-04-11 15:06:46,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:06:46,504 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,504 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:46,505 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792116, now seen corresponding path program 1 times [2018-04-11 15:06:46,505 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,505 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,505 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,505 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,517 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:46,559 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 15:06:46,559 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,559 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:06:46,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:06:46,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:06:46,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:46,560 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-04-11 15:06:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,598 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-04-11 15:06:46,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:06:46,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 15:06:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,599 INFO L225 Difference]: With dead ends: 51 [2018-04-11 15:06:46,599 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 15:06:46,599 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:06:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 15:06:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 15:06:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 15:06:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-04-11 15:06:46,603 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 14 [2018-04-11 15:06:46,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,603 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-04-11 15:06:46,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:06:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-04-11 15:06:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:06:46,603 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,604 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:46,604 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487725, now seen corresponding path program 1 times [2018-04-11 15:06:46,604 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,604 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,605 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,605 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,615 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:46,641 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 15:06:46,641 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:06:46,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:06:46,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:06:46,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:46,642 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 5 states. [2018-04-11 15:06:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,678 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-04-11 15:06:46,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 15:06:46,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-04-11 15:06:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,679 INFO L225 Difference]: With dead ends: 49 [2018-04-11 15:06:46,679 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 15:06:46,679 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:06:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 15:06:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 15:06:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 15:06:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-04-11 15:06:46,681 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2018-04-11 15:06:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,682 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-04-11 15:06:46,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:06:46,682 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-04-11 15:06:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:06:46,682 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,682 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:46,682 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487726, now seen corresponding path program 1 times [2018-04-11 15:06:46,682 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,683 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,683 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,683 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,693 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:46,773 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 15:06:46,773 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,773 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:06:46,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 15:06:46,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 15:06:46,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:06:46,774 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 8 states. [2018-04-11 15:06:46,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,860 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2018-04-11 15:06:46,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 15:06:46,860 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-04-11 15:06:46,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,861 INFO L225 Difference]: With dead ends: 73 [2018-04-11 15:06:46,861 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 15:06:46,862 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-11 15:06:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 15:06:46,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2018-04-11 15:06:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 15:06:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2018-04-11 15:06:46,864 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 18 [2018-04-11 15:06:46,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,864 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2018-04-11 15:06:46,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 15:06:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2018-04-11 15:06:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 15:06:46,864 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,865 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 15:06:46,865 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,865 INFO L82 PathProgramCache]: Analyzing trace with hash -894404631, now seen corresponding path program 1 times [2018-04-11 15:06:46,865 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,865 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,865 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,866 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,873 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:46,904 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 15:06:46,905 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:46,905 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:06:46,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:06:46,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:06:46,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:06:46,906 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 6 states. [2018-04-11 15:06:46,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:46,958 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-04-11 15:06:46,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:06:46,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-11 15:06:46,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:46,959 INFO L225 Difference]: With dead ends: 53 [2018-04-11 15:06:46,959 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 15:06:46,959 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:06:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 15:06:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-04-11 15:06:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 15:06:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 15:06:46,961 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 23 [2018-04-11 15:06:46,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:46,961 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 15:06:46,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:06:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 15:06:46,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 15:06:46,962 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:46,962 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 15:06:46,962 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:46,962 INFO L82 PathProgramCache]: Analyzing trace with hash -894404630, now seen corresponding path program 1 times [2018-04-11 15:06:46,962 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:46,962 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:46,963 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:46,963 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:46,969 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:47,040 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 15:06:47,040 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:47,040 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 15:06:47,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 15:06:47,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 15:06:47,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-11 15:06:47,040 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 9 states. [2018-04-11 15:06:47,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:47,125 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2018-04-11 15:06:47,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 15:06:47,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-04-11 15:06:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:47,126 INFO L225 Difference]: With dead ends: 67 [2018-04-11 15:06:47,126 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 15:06:47,126 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-04-11 15:06:47,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 15:06:47,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2018-04-11 15:06:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-11 15:06:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-04-11 15:06:47,129 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 23 [2018-04-11 15:06:47,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:47,129 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-04-11 15:06:47,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 15:06:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2018-04-11 15:06:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 15:06:47,129 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:47,129 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:47,129 INFO L408 AbstractCegarLoop]: === Iteration 10 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:47,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1986095611, now seen corresponding path program 1 times [2018-04-11 15:06:47,130 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:47,130 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:47,130 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,130 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,139 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:47,142 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:47,142 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:47,142 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:47,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,163 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:47,196 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:47,197 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 20 treesize of output 21 [2018-04-11 15:06:47,199 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:47,199 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 15:06:47,200 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,207 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 15:06:47,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 15:06:47,233 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-11 15:06:47,239 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-11 15:06:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:47,245 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:47,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:06:47,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 15:06:47,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 15:06:47,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=22, Unknown=2, NotChecked=18, Total=56 [2018-04-11 15:06:47,246 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 8 states. [2018-04-11 15:06:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:47,312 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-04-11 15:06:47,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:06:47,313 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-04-11 15:06:47,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:47,313 INFO L225 Difference]: With dead ends: 57 [2018-04-11 15:06:47,313 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 15:06:47,314 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=30, Unknown=2, NotChecked=22, Total=72 [2018-04-11 15:06:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 15:06:47,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 15:06:47,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 15:06:47,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-04-11 15:06:47,316 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 28 [2018-04-11 15:06:47,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:47,316 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-04-11 15:06:47,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 15:06:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-04-11 15:06:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 15:06:47,316 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:47,316 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:47,316 INFO L408 AbstractCegarLoop]: === Iteration 11 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:47,316 INFO L82 PathProgramCache]: Analyzing trace with hash 55851358, now seen corresponding path program 1 times [2018-04-11 15:06:47,316 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:47,316 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:47,317 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,317 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,326 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:47,347 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:47,347 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:06:47,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 15:06:47,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 15:06:47,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 15:06:47,348 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2018-04-11 15:06:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:47,353 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-04-11 15:06:47,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 15:06:47,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-04-11 15:06:47,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:47,354 INFO L225 Difference]: With dead ends: 50 [2018-04-11 15:06:47,354 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 15:06:47,354 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 15:06:47,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 15:06:47,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 15:06:47,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 15:06:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 15:06:47,357 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 28 [2018-04-11 15:06:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:47,357 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 15:06:47,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 15:06:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 15:06:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 15:06:47,358 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:47,358 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:47,358 INFO L408 AbstractCegarLoop]: === Iteration 12 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:47,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1951988481, now seen corresponding path program 1 times [2018-04-11 15:06:47,358 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:47,358 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:47,359 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,359 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,372 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:47,380 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:47,380 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:47,380 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:47,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,415 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:47,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 15:06:47,441 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 11 treesize of output 10 [2018-04-11 15:06:47,442 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:06:47,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-04-11 15:06:47,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-11 15:06:47,530 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:06:47,531 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 14 treesize of output 10 [2018-04-11 15:06:47,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,543 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,543 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:3 [2018-04-11 15:06:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:47,564 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:47,564 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 15:06:47,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 15:06:47,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 15:06:47,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-11 15:06:47,565 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 11 states. [2018-04-11 15:06:47,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:47,741 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-04-11 15:06:47,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 15:06:47,742 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 15:06:47,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:47,742 INFO L225 Difference]: With dead ends: 77 [2018-04-11 15:06:47,742 INFO L226 Difference]: Without dead ends: 77 [2018-04-11 15:06:47,743 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:06:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-11 15:06:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2018-04-11 15:06:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 15:06:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2018-04-11 15:06:47,745 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 30 [2018-04-11 15:06:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:47,746 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2018-04-11 15:06:47,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 15:06:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2018-04-11 15:06:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 15:06:47,746 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:47,746 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:47,746 INFO L408 AbstractCegarLoop]: === Iteration 13 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash 146550147, now seen corresponding path program 1 times [2018-04-11 15:06:47,747 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:47,747 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:47,747 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,748 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,761 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:47,931 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:47,931 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:47,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:47,957 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:47,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 15:06:47,968 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:47,972 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 15:06:47,995 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:47,996 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:47,996 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 15:06:47,996 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,001 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,002 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-04-11 15:06:48,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 15:06:48,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 15:06:48,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:06:48,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-04-11 15:06:48,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-11 15:06:48,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 15:06:48,067 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,071 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,078 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 15:06:48,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:36 [2018-04-11 15:06:48,159 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 28 treesize of output 26 [2018-04-11 15:06:48,163 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 8 treesize of output 1 [2018-04-11 15:06:48,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,169 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:06:48,170 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 14 treesize of output 10 [2018-04-11 15:06:48,170 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,173 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,179 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:49, output treesize:3 [2018-04-11 15:06:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 15:06:48,193 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:06:48,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2018-04-11 15:06:48,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 15:06:48,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 15:06:48,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2018-04-11 15:06:48,194 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand 23 states. [2018-04-11 15:06:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:48,812 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2018-04-11 15:06:48,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 15:06:48,813 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 30 [2018-04-11 15:06:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:48,815 INFO L225 Difference]: With dead ends: 126 [2018-04-11 15:06:48,815 INFO L226 Difference]: Without dead ends: 103 [2018-04-11 15:06:48,815 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=216, Invalid=1424, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 15:06:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-11 15:06:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 82. [2018-04-11 15:06:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 15:06:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2018-04-11 15:06:48,818 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 30 [2018-04-11 15:06:48,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:48,818 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2018-04-11 15:06:48,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 15:06:48,818 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2018-04-11 15:06:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 15:06:48,819 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:48,819 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:48,819 INFO L408 AbstractCegarLoop]: === Iteration 14 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:48,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1821776862, now seen corresponding path program 1 times [2018-04-11 15:06:48,819 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:48,819 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:48,820 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:48,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:48,820 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:48,826 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:48,832 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:48,832 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:48,832 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:48,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:48,857 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:48,862 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 15:06:48,862 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,869 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 15:06:48,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,877 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:06:48,893 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:48,894 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:48,895 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 15:06:48,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,903 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 15:06:48,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,909 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,909 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 15:06:48,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:48,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:48,934 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,941 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-04-11 15:06:48,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 15:06:48,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:48,959 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,963 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:48,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:06:48,970 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:39 [2018-04-11 15:06:49,028 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 32 treesize of output 30 [2018-04-11 15:06:49,030 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 10 treesize of output 1 [2018-04-11 15:06:49,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:49,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:49,039 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:49,041 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:49,050 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:49,051 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:52, output treesize:62 [2018-04-11 15:06:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:49,118 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:06:49,118 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 15:06:49,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 15:06:49,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 15:06:49,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-04-11 15:06:49,119 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 13 states. [2018-04-11 15:06:49,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:49,631 INFO L93 Difference]: Finished difference Result 170 states and 191 transitions. [2018-04-11 15:06:49,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 15:06:49,631 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2018-04-11 15:06:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:49,632 INFO L225 Difference]: With dead ends: 170 [2018-04-11 15:06:49,632 INFO L226 Difference]: Without dead ends: 170 [2018-04-11 15:06:49,632 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-04-11 15:06:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-04-11 15:06:49,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 127. [2018-04-11 15:06:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-11 15:06:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions. [2018-04-11 15:06:49,635 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 31 [2018-04-11 15:06:49,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:49,635 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 145 transitions. [2018-04-11 15:06:49,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 15:06:49,636 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions. [2018-04-11 15:06:49,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 15:06:49,636 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:49,637 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:49,637 INFO L408 AbstractCegarLoop]: === Iteration 15 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:49,637 INFO L82 PathProgramCache]: Analyzing trace with hash -670234678, now seen corresponding path program 1 times [2018-04-11 15:06:49,637 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:49,637 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:49,638 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:49,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:49,638 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:49,649 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:49,919 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:49,919 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:49,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:49,947 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:49,983 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 15:06:49,983 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:49,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:49,989 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:06:50,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:50,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:50,004 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:06:50,087 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 15:06:50,090 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 15:06:50,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:50,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:50,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:50,097 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:40 [2018-04-11 15:06:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:50,168 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:06:50,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2018-04-11 15:06:50,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 15:06:50,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 15:06:50,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2018-04-11 15:06:50,169 INFO L87 Difference]: Start difference. First operand 127 states and 145 transitions. Second operand 23 states. [2018-04-11 15:06:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:50,658 INFO L93 Difference]: Finished difference Result 195 states and 217 transitions. [2018-04-11 15:06:50,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 15:06:50,658 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 37 [2018-04-11 15:06:50,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:50,659 INFO L225 Difference]: With dead ends: 195 [2018-04-11 15:06:50,659 INFO L226 Difference]: Without dead ends: 195 [2018-04-11 15:06:50,659 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 15:06:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-04-11 15:06:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 141. [2018-04-11 15:06:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-04-11 15:06:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 163 transitions. [2018-04-11 15:06:50,662 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 163 transitions. Word has length 37 [2018-04-11 15:06:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:50,662 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 163 transitions. [2018-04-11 15:06:50,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 15:06:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 163 transitions. [2018-04-11 15:06:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 15:06:50,663 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:50,663 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-04-11 15:06:50,664 INFO L408 AbstractCegarLoop]: === Iteration 16 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:50,664 INFO L82 PathProgramCache]: Analyzing trace with hash 903827564, now seen corresponding path program 2 times [2018-04-11 15:06:50,664 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:50,664 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:50,664 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:50,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:50,664 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:50,671 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:50,677 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:50,677 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:50,677 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:50,677 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:06:50,696 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:06:50,696 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:06:50,700 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:50,715 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 15:06:50,716 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,721 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 15:06:50,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,735 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-11 15:06:50,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:50,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:50,750 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 15:06:50,750 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,760 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 15:06:50,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,773 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 15:06:50,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:50,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:50,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,800 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-04-11 15:06:50,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 15:06:50,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:50,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,820 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:06:50,820 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2018-04-11 15:06:50,910 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 31 treesize of output 29 [2018-04-11 15:06:50,912 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 10 treesize of output 1 [2018-04-11 15:06:50,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:50,919 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 15:06:50,919 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:50,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:50,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:50,927 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:53, output treesize:48 [2018-04-11 15:06:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:50,996 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:06:50,996 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 15:06:50,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 15:06:50,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 15:06:50,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-04-11 15:06:50,997 INFO L87 Difference]: Start difference. First operand 141 states and 163 transitions. Second operand 16 states. [2018-04-11 15:06:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:51,532 INFO L93 Difference]: Finished difference Result 246 states and 281 transitions. [2018-04-11 15:06:51,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 15:06:51,532 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2018-04-11 15:06:51,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:51,533 INFO L225 Difference]: With dead ends: 246 [2018-04-11 15:06:51,533 INFO L226 Difference]: Without dead ends: 246 [2018-04-11 15:06:51,533 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2018-04-11 15:06:51,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-04-11 15:06:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 193. [2018-04-11 15:06:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-04-11 15:06:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 226 transitions. [2018-04-11 15:06:51,537 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 226 transitions. Word has length 44 [2018-04-11 15:06:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:51,537 INFO L459 AbstractCegarLoop]: Abstraction has 193 states and 226 transitions. [2018-04-11 15:06:51,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 15:06:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 226 transitions. [2018-04-11 15:06:51,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 15:06:51,538 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:51,538 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 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 15:06:51,538 INFO L408 AbstractCegarLoop]: === Iteration 17 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:51,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1802186975, now seen corresponding path program 2 times [2018-04-11 15:06:51,538 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:51,538 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:51,542 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:51,542 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:06:51,542 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:51,553 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 15:06:51,709 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:51,709 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:51,710 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:06:51,737 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:06:51,737 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:06:51,740 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:51,745 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 6 treesize of output 5 [2018-04-11 15:06:51,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:51,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:51,748 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:06:51,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:51,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:51,767 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:51,768 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:51,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:51,772 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:06:51,868 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 15:06:51,873 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 15:06:51,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:51,876 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:51,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:51,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-11 15:06:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:51,970 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:06:51,970 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2018-04-11 15:06:51,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 15:06:51,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 15:06:51,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-04-11 15:06:51,971 INFO L87 Difference]: Start difference. First operand 193 states and 226 transitions. Second operand 22 states. [2018-04-11 15:06:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:52,918 INFO L93 Difference]: Finished difference Result 388 states and 421 transitions. [2018-04-11 15:06:52,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 15:06:52,918 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 44 [2018-04-11 15:06:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:52,919 INFO L225 Difference]: With dead ends: 388 [2018-04-11 15:06:52,919 INFO L226 Difference]: Without dead ends: 388 [2018-04-11 15:06:52,920 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=389, Invalid=1591, Unknown=0, NotChecked=0, Total=1980 [2018-04-11 15:06:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-04-11 15:06:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 121. [2018-04-11 15:06:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-04-11 15:06:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2018-04-11 15:06:52,923 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 44 [2018-04-11 15:06:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:52,923 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2018-04-11 15:06:52,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 15:06:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2018-04-11 15:06:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-11 15:06:52,924 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:52,924 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:52,924 INFO L408 AbstractCegarLoop]: === Iteration 18 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:52,924 INFO L82 PathProgramCache]: Analyzing trace with hash -516918626, now seen corresponding path program 3 times [2018-04-11 15:06:52,925 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:52,925 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:52,925 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:52,925 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:06:52,925 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:52,935 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:52,945 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:52,945 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:52,945 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:52,945 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 15:06:52,970 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 15:06:52,970 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:06:52,973 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:52,978 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 15:06:52,979 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:52,983 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 15:06:52,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:52,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:52,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:06:52,998 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:53,000 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 15:06:53,000 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,006 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:53,006 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:53,007 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 15:06:53,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 15:06:53,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:53,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:53,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,026 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,030 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 15:06:53,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 15:06:53,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:53,044 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,050 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:06:53,055 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:32 [2018-04-11 15:06:53,138 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 5 treesize of output 1 [2018-04-11 15:06:53,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,143 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 15:06:53,143 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:31 [2018-04-11 15:06:53,175 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 31 treesize of output 29 [2018-04-11 15:06:53,179 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 15:06:53,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:53,185 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 10 treesize of output 1 [2018-04-11 15:06:53,185 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:53,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:53,192 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:48, output treesize:34 [2018-04-11 15:06:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:53,245 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:06:53,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 15:06:53,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 15:06:53,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 15:06:53,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2018-04-11 15:06:53,246 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand 16 states. [2018-04-11 15:06:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:53,726 INFO L93 Difference]: Finished difference Result 171 states and 184 transitions. [2018-04-11 15:06:53,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 15:06:53,726 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2018-04-11 15:06:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:53,727 INFO L225 Difference]: With dead ends: 171 [2018-04-11 15:06:53,727 INFO L226 Difference]: Without dead ends: 171 [2018-04-11 15:06:53,727 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2018-04-11 15:06:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-04-11 15:06:53,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2018-04-11 15:06:53,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-04-11 15:06:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 161 transitions. [2018-04-11 15:06:53,731 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 161 transitions. Word has length 57 [2018-04-11 15:06:53,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:53,731 INFO L459 AbstractCegarLoop]: Abstraction has 150 states and 161 transitions. [2018-04-11 15:06:53,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 15:06:53,731 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 161 transitions. [2018-04-11 15:06:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 15:06:53,732 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:53,732 INFO L355 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:53,732 INFO L408 AbstractCegarLoop]: === Iteration 19 === [cstrcspnErr0RequiresViolation, cstrcspnErr9RequiresViolation, cstrcspnErr7RequiresViolation, cstrcspnErr4RequiresViolation, cstrcspnErr6RequiresViolation, cstrcspnErr5RequiresViolation, cstrcspnErr1RequiresViolation, cstrcspnErr3RequiresViolation, cstrcspnErr2RequiresViolation, cstrcspnErr8RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:53,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1939337644, now seen corresponding path program 4 times [2018-04-11 15:06:53,733 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:53,733 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:53,733 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:53,733 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:06:53,733 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:53,744 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:53,755 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:06:53,755 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:53,755 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:53,755 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 15:06:53,788 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 15:06:53,788 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:06:53,792 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:53,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:06:53,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,806 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 15:06:53,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,811 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:06:53,825 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:53,826 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 15:06:53,827 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:53,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:06:53,836 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 15:06:53,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,841 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 15:06:53,860 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 15 treesize of output 12 [2018-04-11 15:06:53,862 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 12 treesize of output 11 [2018-04-11 15:06:53,862 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,868 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 15:06:53,883 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 28 treesize of output 29 [2018-04-11 15:06:53,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:53,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:53,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:06:53,895 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 15:06:54,059 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 31 treesize of output 29 [2018-04-11 15:06:54,070 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 15:06:54,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:54,077 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 10 treesize of output 1 [2018-04-11 15:06:54,077 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:54,080 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:54,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:54,086 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:42 [2018-04-11 15:06:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 45 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:54,158 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:06:54,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 15:06:54,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 15:06:54,159 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 15:06:54,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:06:54,159 INFO L87 Difference]: Start difference. First operand 150 states and 161 transitions. Second operand 17 states. [2018-04-11 15:06:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:55,298 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2018-04-11 15:06:55,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 15:06:55,328 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 70 [2018-04-11 15:06:55,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:55,329 INFO L225 Difference]: With dead ends: 169 [2018-04-11 15:06:55,329 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 15:06:55,329 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2018-04-11 15:06:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 15:06:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 15:06:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 15:06:55,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 15:06:55,329 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2018-04-11 15:06:55,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:55,330 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 15:06:55,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 15:06:55,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 15:06:55,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 15:06:55,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:06:55 BoogieIcfgContainer [2018-04-11 15:06:55,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:06:55,333 INFO L168 Benchmark]: Toolchain (without parser) took 10525.63 ms. Allocated memory was 405.8 MB in the beginning and 790.1 MB in the end (delta: 384.3 MB). Free memory was 337.8 MB in the beginning and 648.6 MB in the end (delta: -310.8 MB). Peak memory consumption was 73.5 MB. Max. memory is 5.3 GB. [2018-04-11 15:06:55,334 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 405.8 MB. Free memory is still 363.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:06:55,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.66 ms. Allocated memory is still 405.8 MB. Free memory was 336.5 MB in the beginning and 312.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-11 15:06:55,335 INFO L168 Benchmark]: Boogie Preprocessor took 30.55 ms. Allocated memory is still 405.8 MB. Free memory was 312.6 MB in the beginning and 310.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:06:55,335 INFO L168 Benchmark]: RCFGBuilder took 381.87 ms. Allocated memory was 405.8 MB in the beginning and 598.7 MB in the end (delta: 192.9 MB). Free memory was 310.0 MB in the beginning and 533.0 MB in the end (delta: -223.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-04-11 15:06:55,335 INFO L168 Benchmark]: TraceAbstraction took 9844.61 ms. Allocated memory was 598.7 MB in the beginning and 790.1 MB in the end (delta: 191.4 MB). Free memory was 533.0 MB in the beginning and 648.6 MB in the end (delta: -115.6 MB). Peak memory consumption was 75.8 MB. Max. memory is 5.3 GB. [2018-04-11 15:06:55,336 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 405.8 MB. Free memory is still 363.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 265.66 ms. Allocated memory is still 405.8 MB. Free memory was 336.5 MB in the beginning and 312.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.55 ms. Allocated memory is still 405.8 MB. Free memory was 312.6 MB in the beginning and 310.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 381.87 ms. Allocated memory was 405.8 MB in the beginning and 598.7 MB in the end (delta: 192.9 MB). Free memory was 310.0 MB in the beginning and 533.0 MB in the end (delta: -223.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 9844.61 ms. Allocated memory was 598.7 MB in the beginning and 790.1 MB in the end (delta: 191.4 MB). Free memory was 533.0 MB in the beginning and 648.6 MB in the end (delta: -115.6 MB). Peak memory consumption was 75.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 15 error locations. SAFE Result, 9.8s OverallTime, 19 OverallIterations, 5 TraceHistogramMax, 5.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 825 SDtfs, 2039 SDslu, 3894 SDs, 0 SdLazy, 4008 SolverSat, 198 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 296 SyntacticMatches, 9 SemanticMatches, 283 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1152 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=16, 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, 19 MinimizatonAttempts, 510 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 958 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 637 ConstructedInterpolants, 119 QuantifiedInterpolants, 375748 SizeOfPredicates, 113 NumberOfNonLiveVariables, 1695 ConjunctsInSsa, 353 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 58/234 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-06-55-341.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-06-55-341.csv Received shutdown request...