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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 12:21:35,101 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 12:21:35,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 12:21:35,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 12:21:35,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 12:21:35,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 12:21:35,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 12:21:35,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 12:21:35,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 12:21:35,124 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 12:21:35,125 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 12:21:35,125 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 12:21:35,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 12:21:35,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 12:21:35,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 12:21:35,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 12:21:35,132 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 12:21:35,134 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 12:21:35,135 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 12:21:35,136 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 12:21:35,139 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-03-28 12:21:35,144 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 12:21:35,145 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 12:21:35,145 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 12:21:35,170 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 12:21:35,171 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 12:21:35,171 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 12:21:35,171 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 12:21:35,172 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 12:21:35,172 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 12:21:35,172 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 12:21:35,173 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 12:21:35,173 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 12:21:35,173 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 12:21:35,173 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 12:21:35,174 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 12:21:35,174 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 12:21:35,174 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 12:21:35,174 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 12:21:35,174 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 12:21:35,175 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 12:21:35,175 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 12:21:35,175 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 12:21:35,175 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 12:21:35,175 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 12:21:35,176 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 12:21:35,176 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 12:21:35,176 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 12:21:35,176 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 12:21:35,176 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:21:35,177 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 12:21:35,177 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 12:21:35,177 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 12:21:35,177 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 12:21:35,177 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 12:21:35,178 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:35,178 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 12:21:35,179 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 12:21:35,179 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 12:21:35,179 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 12:21:35,179 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 12:21:35,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 12:21:35,227 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 12:21:35,231 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 12:21:35,233 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 12:21:35,233 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 12:21:35,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,573 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG3e105f5ae [2018-03-28 12:21:35,738 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 12:21:35,738 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 12:21:35,739 INFO L171 CDTParser]: Scanning openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,749 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 12:21:35,750 INFO L215 ultiparseSymbolTable]: [2018-03-28 12:21:35,750 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 12:21:35,750 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcat ('cstrcat') in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,750 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,750 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,750 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:35,781 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG3e105f5ae [2018-03-28 12:21:35,785 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 12:21:35,787 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 12:21:35,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 12:21:35,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 12:21:35,793 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 12:21:35,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:21:35" (1/1) ... [2018-03-28 12:21:35,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103aa733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:35, skipping insertion in model container [2018-03-28 12:21:35,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:21:35" (1/1) ... [2018-03-28 12:21:35,816 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:21:35,846 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:21:36,016 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:21:36,065 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:21:36,072 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-28 12:21:36,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36 WrapperNode [2018-03-28 12:21:36,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 12:21:36,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 12:21:36,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 12:21:36,119 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 12:21:36,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... [2018-03-28 12:21:36,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 12:21:36,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 12:21:36,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 12:21:36,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 12:21:36,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (1/1) ... No working directory specified, using /storage/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 [2018-03-28 12:21:36,294 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 12:21:36,294 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 12:21:36,294 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:21:36,294 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:21:36,294 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcat [2018-03-28 12:21:36,295 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-28 12:21:36,295 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-28 12:21:36,296 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-28 12:21:36,297 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-28 12:21:36,298 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-28 12:21:36,299 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-28 12:21:36,300 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 12:21:36,301 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-28 12:21:36,302 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-28 12:21:36,303 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-28 12:21:36,304 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-28 12:21:36,305 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-28 12:21:36,306 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-28 12:21:36,307 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcat [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 12:21:36,308 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 12:21:36,309 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 12:21:36,689 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 12:21:36,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:21:36 BoogieIcfgContainer [2018-03-28 12:21:36,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 12:21:36,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 12:21:36,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 12:21:36,694 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 12:21:36,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:21:35" (1/3) ... [2018-03-28 12:21:36,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b26c45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:21:36, skipping insertion in model container [2018-03-28 12:21:36,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:21:36" (2/3) ... [2018-03-28 12:21:36,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b26c45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:21:36, skipping insertion in model container [2018-03-28 12:21:36,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:21:36" (3/3) ... [2018-03-28 12:21:36,698 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:21:36,707 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 12:21:36,715 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-03-28 12:21:36,758 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 12:21:36,759 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 12:21:36,759 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 12:21:36,759 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 12:21:36,759 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 12:21:36,759 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 12:21:36,759 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 12:21:36,759 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 12:21:36,759 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 12:21:36,760 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 12:21:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-03-28 12:21:36,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-28 12:21:36,777 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:36,777 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] [2018-03-28 12:21:36,777 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:36,781 INFO L82 PathProgramCache]: Analyzing trace with hash 703701311, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:36,792 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:36,824 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:36,852 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:36,890 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:36,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 12:21:36,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-28 12:21:36,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-28 12:21:36,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:21:36,904 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2018-03-28 12:21:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:36,978 INFO L93 Difference]: Finished difference Result 112 states and 121 transitions. [2018-03-28 12:21:36,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 12:21:36,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-03-28 12:21:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:36,990 INFO L225 Difference]: With dead ends: 112 [2018-03-28 12:21:36,990 INFO L226 Difference]: Without dead ends: 75 [2018-03-28 12:21:36,994 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:21:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-03-28 12:21:37,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-03-28 12:21:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-03-28 12:21:37,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2018-03-28 12:21:37,029 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 21 [2018-03-28 12:21:37,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:37,029 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2018-03-28 12:21:37,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-28 12:21:37,029 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2018-03-28 12:21:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-28 12:21:37,030 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:37,030 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:37,030 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:37,031 INFO L82 PathProgramCache]: Analyzing trace with hash 289022876, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:37,045 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:37,064 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:37,097 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 [2018-03-28 12:21:37,100 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,102 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:21:37,132 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 [2018-03-28 12:21:37,132 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,158 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. [2018-03-28 12:21:37,158 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-28 12:21:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:37,175 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:37,208 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:37,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:21:37,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:21:37,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:21:37,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:21:37,210 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 4 states. [2018-03-28 12:21:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:37,272 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2018-03-28 12:21:37,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:21:37,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-03-28 12:21:37,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:37,274 INFO L225 Difference]: With dead ends: 75 [2018-03-28 12:21:37,275 INFO L226 Difference]: Without dead ends: 74 [2018-03-28 12:21:37,276 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:21:37,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-03-28 12:21:37,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-03-28 12:21:37,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-03-28 12:21:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2018-03-28 12:21:37,285 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 24 [2018-03-28 12:21:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:37,286 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2018-03-28 12:21:37,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:21:37,286 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2018-03-28 12:21:37,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-28 12:21:37,287 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:37,287 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:37,287 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:37,288 INFO L82 PathProgramCache]: Analyzing trace with hash 289022877, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:37,296 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:37,316 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:37,330 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 [2018-03-28 12:21:37,330 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,371 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 [2018-03-28 12:21:37,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,395 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-03-28 12:21:37,441 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:37,444 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 [2018-03-28 12:21:37,444 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,512 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:37,513 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:37,514 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 [2018-03-28 12:21:37,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:37,522 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-03-28 12:21:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:37,534 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:39,690 WARN L148 SmtUtils]: Spent 2063ms on a formula simplification that was a NOOP. DAG size: 26 [2018-03-28 12:21:39,701 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:39,701 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-03-28 12:21:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:39,739 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:39,739 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-28 12:21:39,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:21:39,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:21:39,747 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:21:39,748 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand 9 states. [2018-03-28 12:21:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:39,905 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2018-03-28 12:21:39,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:21:39,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-03-28 12:21:39,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:39,907 INFO L225 Difference]: With dead ends: 74 [2018-03-28 12:21:39,907 INFO L226 Difference]: Without dead ends: 73 [2018-03-28 12:21:39,908 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:21:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-03-28 12:21:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-03-28 12:21:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-03-28 12:21:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2018-03-28 12:21:39,915 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 24 [2018-03-28 12:21:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:39,916 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2018-03-28 12:21:39,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:21:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2018-03-28 12:21:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-28 12:21:39,917 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:39,917 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] [2018-03-28 12:21:39,917 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:39,917 INFO L82 PathProgramCache]: Analyzing trace with hash 369774579, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:39,925 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:39,941 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:39,946 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 [2018-03-28 12:21:39,947 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:39,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:39,949 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:21:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:39,962 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:39,992 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:39,993 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:21:39,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:21:39,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:21:39,993 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:21:39,993 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 4 states. [2018-03-28 12:21:40,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:40,033 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2018-03-28 12:21:40,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:21:40,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-03-28 12:21:40,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:40,034 INFO L225 Difference]: With dead ends: 73 [2018-03-28 12:21:40,034 INFO L226 Difference]: Without dead ends: 72 [2018-03-28 12:21:40,035 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:21:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-03-28 12:21:40,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-03-28 12:21:40,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-03-28 12:21:40,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2018-03-28 12:21:40,039 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 25 [2018-03-28 12:21:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:40,040 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2018-03-28 12:21:40,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:21:40,040 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2018-03-28 12:21:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-28 12:21:40,040 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:40,040 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] [2018-03-28 12:21:40,040 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:40,041 INFO L82 PathProgramCache]: Analyzing trace with hash 369774580, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:40,047 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:40,061 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:40,117 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 [2018-03-28 12:21:40,117 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:40,125 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:40,126 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:12 [2018-03-28 12:21:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,150 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,201 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:40,202 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2018-03-28 12:21:40,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-28 12:21:40,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-28 12:21:40,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:21:40,202 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 8 states. [2018-03-28 12:21:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:40,326 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-03-28 12:21:40,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:21:40,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-03-28 12:21:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:40,327 INFO L225 Difference]: With dead ends: 72 [2018-03-28 12:21:40,327 INFO L226 Difference]: Without dead ends: 71 [2018-03-28 12:21:40,327 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-03-28 12:21:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-03-28 12:21:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-03-28 12:21:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-03-28 12:21:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-03-28 12:21:40,333 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 25 [2018-03-28 12:21:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:40,333 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-03-28 12:21:40,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-28 12:21:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-03-28 12:21:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-03-28 12:21:40,334 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:40,334 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, 1, 1, 1] [2018-03-28 12:21:40,334 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:40,334 INFO L82 PathProgramCache]: Analyzing trace with hash -941306668, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:40,340 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:40,359 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,399 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,447 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:40,447 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-28 12:21:40,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:21:40,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:21:40,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:21:40,448 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 5 states. [2018-03-28 12:21:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:40,510 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2018-03-28 12:21:40,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:21:40,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-03-28 12:21:40,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:40,511 INFO L225 Difference]: With dead ends: 74 [2018-03-28 12:21:40,511 INFO L226 Difference]: Without dead ends: 73 [2018-03-28 12:21:40,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:21:40,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-03-28 12:21:40,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2018-03-28 12:21:40,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-03-28 12:21:40,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2018-03-28 12:21:40,516 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 31 [2018-03-28 12:21:40,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:40,516 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2018-03-28 12:21:40,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:21:40,516 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2018-03-28 12:21:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-03-28 12:21:40,517 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:40,517 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, 1, 1, 1] [2018-03-28 12:21:40,517 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:40,517 INFO L82 PathProgramCache]: Analyzing trace with hash -941306667, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:40,524 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:40,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:40,563 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 [2018-03-28 12:21:40,563 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:40,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:40,572 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-03-28 12:21:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,597 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,682 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:40,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2018-03-28 12:21:40,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:40,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:40,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-03-28 12:21:40,683 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 12 states. [2018-03-28 12:21:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:40,851 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2018-03-28 12:21:40,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-28 12:21:40,851 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2018-03-28 12:21:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:40,852 INFO L225 Difference]: With dead ends: 87 [2018-03-28 12:21:40,852 INFO L226 Difference]: Without dead ends: 86 [2018-03-28 12:21:40,852 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-03-28 12:21:40,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-03-28 12:21:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2018-03-28 12:21:40,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-03-28 12:21:40,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-03-28 12:21:40,861 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 31 [2018-03-28 12:21:40,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:40,861 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-03-28 12:21:40,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-03-28 12:21:40,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-03-28 12:21:40,862 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:40,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:40,862 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:40,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1776158873, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:40,873 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:40,907 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,957 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:40,995 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:40,996 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-28 12:21:40,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 12:21:40,996 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 12:21:40,996 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:21:40,997 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2018-03-28 12:21:41,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:41,041 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2018-03-28 12:21:41,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:21:41,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-03-28 12:21:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:41,042 INFO L225 Difference]: With dead ends: 79 [2018-03-28 12:21:41,042 INFO L226 Difference]: Without dead ends: 78 [2018-03-28 12:21:41,043 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:21:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-03-28 12:21:41,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-03-28 12:21:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-03-28 12:21:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2018-03-28 12:21:41,047 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 39 [2018-03-28 12:21:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:41,047 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2018-03-28 12:21:41,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 12:21:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2018-03-28 12:21:41,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-03-28 12:21:41,048 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:41,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:41,049 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:41,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1776158874, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:41,060 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:41,080 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:41,122 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:41,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-03-28 12:21:41,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:41,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-03-28 12:21:41,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:41,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:41,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-28 12:21:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:41,197 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:41,198 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-03-28 12:21:41,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:21:41,198 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:21:41,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:21:41,198 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 9 states. [2018-03-28 12:21:41,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:41,335 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2018-03-28 12:21:41,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:41,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-03-28 12:21:41,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:41,336 INFO L225 Difference]: With dead ends: 85 [2018-03-28 12:21:41,336 INFO L226 Difference]: Without dead ends: 84 [2018-03-28 12:21:41,336 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:21:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-03-28 12:21:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-03-28 12:21:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-03-28 12:21:41,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2018-03-28 12:21:41,343 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 39 [2018-03-28 12:21:41,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:41,343 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2018-03-28 12:21:41,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:21:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2018-03-28 12:21:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-03-28 12:21:41,344 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:41,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:41,344 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:41,344 INFO L82 PathProgramCache]: Analyzing trace with hash -773649723, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:41,350 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:41,368 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:41,398 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:41,428 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:41,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-28 12:21:41,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 12:21:41,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 12:21:41,429 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:21:41,429 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 6 states. [2018-03-28 12:21:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:41,482 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2018-03-28 12:21:41,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:21:41,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-03-28 12:21:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:41,483 INFO L225 Difference]: With dead ends: 84 [2018-03-28 12:21:41,483 INFO L226 Difference]: Without dead ends: 83 [2018-03-28 12:21:41,483 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:21:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-03-28 12:21:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-03-28 12:21:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-03-28 12:21:41,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2018-03-28 12:21:41,488 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 40 [2018-03-28 12:21:41,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:41,488 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2018-03-28 12:21:41,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 12:21:41,489 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2018-03-28 12:21:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-03-28 12:21:41,490 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:41,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:41,490 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:41,490 INFO L82 PathProgramCache]: Analyzing trace with hash -773649722, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:41,497 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:41,518 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:41,524 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 [2018-03-28 12:21:41,524 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:41,528 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:41,528 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-03-28 12:21:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:41,586 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:41,742 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:41,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2018-03-28 12:21:41,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:21:41,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:21:41,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:21:41,744 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 16 states. [2018-03-28 12:21:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:42,058 INFO L93 Difference]: Finished difference Result 110 states and 117 transitions. [2018-03-28 12:21:42,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:21:42,059 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2018-03-28 12:21:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:42,062 INFO L225 Difference]: With dead ends: 110 [2018-03-28 12:21:42,062 INFO L226 Difference]: Without dead ends: 109 [2018-03-28 12:21:42,063 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2018-03-28 12:21:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-03-28 12:21:42,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 102. [2018-03-28 12:21:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-03-28 12:21:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2018-03-28 12:21:42,070 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 40 [2018-03-28 12:21:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:42,071 INFO L459 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2018-03-28 12:21:42,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:21:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2018-03-28 12:21:42,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-03-28 12:21:42,072 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:42,072 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:42,072 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:42,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1625754133, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:42,078 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:42,099 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:42,131 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 [2018-03-28 12:21:42,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:42,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:42,137 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-03-28 12:21:42,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-03-28 12:21:42,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-28 12:21:42,214 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:42,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:42,250 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. [2018-03-28 12:21:42,250 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-03-28 12:21:42,346 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 [2018-03-28 12:21:42,357 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 14 treesize of output 11 [2018-03-28 12:21:42,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:21:42,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:42,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:42,373 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:35 [2018-03-28 12:21:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:42,451 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:42,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-03-28 12:21:42,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-28 12:21:42,634 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:42,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:42,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:42,642 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:38 [2018-03-28 12:21:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:42,861 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:21:42,861 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-03-28 12:21:42,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-28 12:21:42,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-28 12:21:42,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2018-03-28 12:21:42,862 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand 25 states. [2018-03-28 12:21:44,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:44,407 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2018-03-28 12:21:44,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-28 12:21:44,408 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 45 [2018-03-28 12:21:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:44,409 INFO L225 Difference]: With dead ends: 140 [2018-03-28 12:21:44,409 INFO L226 Difference]: Without dead ends: 139 [2018-03-28 12:21:44,410 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=257, Invalid=1549, Unknown=0, NotChecked=0, Total=1806 [2018-03-28 12:21:44,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-03-28 12:21:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 109. [2018-03-28 12:21:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-03-28 12:21:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2018-03-28 12:21:44,419 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 45 [2018-03-28 12:21:44,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:44,420 INFO L459 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2018-03-28 12:21:44,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-28 12:21:44,420 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2018-03-28 12:21:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-03-28 12:21:44,421 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:44,421 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:44,421 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:44,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1969495212, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:44,433 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:44,456 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:44,467 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 [2018-03-28 12:21:44,468 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,471 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,471 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:21:44,495 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:44,496 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:44,497 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 [2018-03-28 12:21:44,497 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,499 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-03-28 12:21:44,514 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 [2018-03-28 12:21:44,516 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 [2018-03-28 12:21:44,516 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,522 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. [2018-03-28 12:21:44,523 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-03-28 12:21:44,540 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 [2018-03-28 12:21:44,543 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 [2018-03-28 12:21:44,544 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,548 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-28 12:21:44,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-03-28 12:21:44,709 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 30 treesize of output 28 [2018-03-28 12:21:44,717 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 [2018-03-28 12:21:44,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:21:44,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-03-28 12:21:44,731 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:44,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:44,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:44,744 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-03-28 12:21:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:44,827 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:45,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-03-28 12:21:45,078 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:45,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-03-28 12:21:45,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-28 12:21:45,093 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:45,094 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:45,099 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:45,099 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-03-28 12:21:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:45,157 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:21:45,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2018-03-28 12:21:45,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-28 12:21:45,158 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-28 12:21:45,158 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2018-03-28 12:21:45,159 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 25 states. [2018-03-28 12:21:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:45,936 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2018-03-28 12:21:45,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-03-28 12:21:45,936 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 50 [2018-03-28 12:21:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:45,937 INFO L225 Difference]: With dead ends: 130 [2018-03-28 12:21:45,937 INFO L226 Difference]: Without dead ends: 129 [2018-03-28 12:21:45,938 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=1421, Unknown=0, NotChecked=0, Total=1640 [2018-03-28 12:21:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-03-28 12:21:45,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 120. [2018-03-28 12:21:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-03-28 12:21:45,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 128 transitions. [2018-03-28 12:21:45,945 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 128 transitions. Word has length 50 [2018-03-28 12:21:45,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:45,945 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 128 transitions. [2018-03-28 12:21:45,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-28 12:21:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 128 transitions. [2018-03-28 12:21:45,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-28 12:21:45,946 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:45,947 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:45,947 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:45,947 INFO L82 PathProgramCache]: Analyzing trace with hash 4657691, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:45,952 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:45,971 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:45,988 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 [2018-03-28 12:21:45,988 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:45,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:45,994 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-03-28 12:21:46,022 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 [2018-03-28 12:21:46,025 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 11 treesize of output 10 [2018-03-28 12:21:46,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:46,027 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:46,032 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. [2018-03-28 12:21:46,032 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-03-28 12:21:46,151 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 28 treesize of output 22 [2018-03-28 12:21:46,153 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:46,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2018-03-28 12:21:46,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:21:46,172 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:46,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:46,186 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:49 [2018-03-28 12:21:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:46,277 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:46,554 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 29 treesize of output 25 [2018-03-28 12:21:46,569 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:21:46,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-03-28 12:21:46,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:46,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:46,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:46,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:54 [2018-03-28 12:21:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:46,760 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:21:46,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2018-03-28 12:21:46,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-03-28 12:21:46,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-03-28 12:21:46,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2018-03-28 12:21:46,761 INFO L87 Difference]: Start difference. First operand 120 states and 128 transitions. Second operand 31 states. [2018-03-28 12:21:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:48,045 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2018-03-28 12:21:48,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-03-28 12:21:48,045 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 52 [2018-03-28 12:21:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:48,046 INFO L225 Difference]: With dead ends: 148 [2018-03-28 12:21:48,046 INFO L226 Difference]: Without dead ends: 147 [2018-03-28 12:21:48,047 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=368, Invalid=2388, Unknown=0, NotChecked=0, Total=2756 [2018-03-28 12:21:48,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-03-28 12:21:48,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 134. [2018-03-28 12:21:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-03-28 12:21:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2018-03-28 12:21:48,055 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 52 [2018-03-28 12:21:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:48,055 INFO L459 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2018-03-28 12:21:48,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-03-28 12:21:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2018-03-28 12:21:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-28 12:21:48,056 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:48,056 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, 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] [2018-03-28 12:21:48,056 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:48,057 INFO L82 PathProgramCache]: Analyzing trace with hash -953565311, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:48,062 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:48,080 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:48,136 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:48,136 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 27 [2018-03-28 12:21:48,138 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 23 treesize of output 15 [2018-03-28 12:21:48,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:48,142 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:48,146 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. [2018-03-28 12:21:48,146 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:48,174 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:48,178 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:48,184 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:48,206 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_16| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_16| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:21:48,209 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_15| Int) (|v_main_#t~malloc11.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_15| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_16|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_16| 1) |v_main_#t~malloc10.base_15| 0) |v_main_#t~malloc11.base_16| 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_15|) 0))))) is different from false [2018-03-28 12:21:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:48,250 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:48,250 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:48,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:48,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:48,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:48,251 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand 12 states. [2018-03-28 12:21:48,264 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_15| Int) (|v_main_#t~malloc11.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_15| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_16|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_16| 1) |v_main_#t~malloc10.base_15| 0) |v_main_#t~malloc11.base_16| 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_15|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:21:48,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:48,745 INFO L93 Difference]: Finished difference Result 249 states and 268 transitions. [2018-03-28 12:21:48,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:48,746 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-03-28 12:21:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:48,747 INFO L225 Difference]: With dead ends: 249 [2018-03-28 12:21:48,747 INFO L226 Difference]: Without dead ends: 235 [2018-03-28 12:21:48,747 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:48,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-03-28 12:21:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2018-03-28 12:21:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-03-28 12:21:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2018-03-28 12:21:48,763 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 54 [2018-03-28 12:21:48,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:48,763 INFO L459 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2018-03-28 12:21:48,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2018-03-28 12:21:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-03-28 12:21:48,764 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:48,764 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, 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] [2018-03-28 12:21:48,764 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:48,764 INFO L82 PathProgramCache]: Analyzing trace with hash 61705302, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:48,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:48,791 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:48,826 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:48,827 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 [2018-03-28 12:21:48,830 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:48,831 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 [2018-03-28 12:21:48,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:48,838 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:48,844 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. [2018-03-28 12:21:48,844 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:48,884 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:48,888 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:48,899 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:48,925 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_18| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_18| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_18|))))) is different from false [2018-03-28 12:21:48,930 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_17| Int) (|v_main_#t~malloc11.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_17| 1))) (or (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_18| 1) |v_main_#t~malloc10.base_17| 0) |v_main_#t~malloc11.base_18| 0)) (not (= 0 (select .cse0 |v_main_#t~malloc11.base_18|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_17|) 0))))) is different from false [2018-03-28 12:21:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:48,990 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:48,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:48,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:48,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:48,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:48,991 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand 12 states. [2018-03-28 12:21:49,015 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc10.base_17| Int) (|v_main_#t~malloc11.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_17| 1))) (or (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_18| 1) |v_main_#t~malloc10.base_17| 0) |v_main_#t~malloc11.base_18| 0)) (not (= 0 (select .cse0 |v_main_#t~malloc11.base_18|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_17|) 0)))))) is different from false [2018-03-28 12:21:49,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:49,400 INFO L93 Difference]: Finished difference Result 347 states and 375 transitions. [2018-03-28 12:21:49,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:49,401 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-03-28 12:21:49,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:49,402 INFO L225 Difference]: With dead ends: 347 [2018-03-28 12:21:49,402 INFO L226 Difference]: Without dead ends: 333 [2018-03-28 12:21:49,403 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-03-28 12:21:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 233. [2018-03-28 12:21:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-03-28 12:21:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 253 transitions. [2018-03-28 12:21:49,420 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 253 transitions. Word has length 55 [2018-03-28 12:21:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:49,421 INFO L459 AbstractCegarLoop]: Abstraction has 233 states and 253 transitions. [2018-03-28 12:21:49,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 253 transitions. [2018-03-28 12:21:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-03-28 12:21:49,422 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:49,422 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, 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] [2018-03-28 12:21:49,422 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:49,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2135979729, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:49,438 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:49,460 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:49,509 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:49,510 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 27 [2018-03-28 12:21:49,520 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 23 treesize of output 15 [2018-03-28 12:21:49,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:49,573 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:49,577 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. [2018-03-28 12:21:49,577 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:49,604 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:49,609 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:49,615 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:49,634 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_20| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_20|))))) is different from false [2018-03-28 12:21:49,645 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc10.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_19| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_20|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_20| 1) |v_main_#t~malloc10.base_19| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_19|)))))) is different from false [2018-03-28 12:21:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:49,701 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:49,702 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:49,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:49,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:49,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:49,703 INFO L87 Difference]: Start difference. First operand 233 states and 253 transitions. Second operand 12 states. [2018-03-28 12:21:49,728 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc10.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_19| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_20|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_20| 1) |v_main_#t~malloc10.base_19| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_19|))))))) is different from false [2018-03-28 12:21:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:50,173 INFO L93 Difference]: Finished difference Result 348 states and 376 transitions. [2018-03-28 12:21:50,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:50,173 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-03-28 12:21:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:50,175 INFO L225 Difference]: With dead ends: 348 [2018-03-28 12:21:50,175 INFO L226 Difference]: Without dead ends: 334 [2018-03-28 12:21:50,176 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-03-28 12:21:50,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 235. [2018-03-28 12:21:50,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-03-28 12:21:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 256 transitions. [2018-03-28 12:21:50,200 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 256 transitions. Word has length 55 [2018-03-28 12:21:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:50,201 INFO L459 AbstractCegarLoop]: Abstraction has 235 states and 256 transitions. [2018-03-28 12:21:50,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 256 transitions. [2018-03-28 12:21:50,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-03-28 12:21:50,202 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:50,202 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, 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] [2018-03-28 12:21:50,202 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:50,203 INFO L82 PathProgramCache]: Analyzing trace with hash 183707505, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:50,213 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:50,241 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:50,322 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:50,323 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 [2018-03-28 12:21:50,326 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:50,327 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 [2018-03-28 12:21:50,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:50,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:50,349 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. [2018-03-28 12:21:50,349 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:50,396 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:50,401 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:50,413 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:50,437 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_22| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_22|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_22| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:21:50,442 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_21| Int) (|v_main_#t~malloc11.base_22| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_21| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_22| 1) |v_main_#t~malloc10.base_21| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_22|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_21|) 0))))) is different from false [2018-03-28 12:21:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:50,502 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:50,502 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:50,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:50,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:50,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:50,503 INFO L87 Difference]: Start difference. First operand 235 states and 256 transitions. Second operand 12 states. [2018-03-28 12:21:50,515 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_21| Int) (|v_main_#t~malloc11.base_22| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_21| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_22| 1) |v_main_#t~malloc10.base_21| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_22|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_21|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:21:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:50,807 INFO L93 Difference]: Finished difference Result 349 states and 378 transitions. [2018-03-28 12:21:50,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:50,807 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-03-28 12:21:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:50,808 INFO L225 Difference]: With dead ends: 349 [2018-03-28 12:21:50,808 INFO L226 Difference]: Without dead ends: 335 [2018-03-28 12:21:50,809 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-03-28 12:21:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 235. [2018-03-28 12:21:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-03-28 12:21:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 256 transitions. [2018-03-28 12:21:50,824 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 256 transitions. Word has length 55 [2018-03-28 12:21:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:50,824 INFO L459 AbstractCegarLoop]: Abstraction has 235 states and 256 transitions. [2018-03-28 12:21:50,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 256 transitions. [2018-03-28 12:21:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-03-28 12:21:50,825 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:50,825 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, 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] [2018-03-28 12:21:50,825 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:50,825 INFO L82 PathProgramCache]: Analyzing trace with hash -750369636, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:50,831 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:50,854 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:50,905 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:50,906 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 27 [2018-03-28 12:21:50,920 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 23 treesize of output 15 [2018-03-28 12:21:50,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:50,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:50,942 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. [2018-03-28 12:21:50,942 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:50,982 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:50,987 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:50,997 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:51,026 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_24| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_24| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_24|))))) is different from false [2018-03-28 12:21:51,031 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_23| Int) (|v_main_#t~malloc11.base_24| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_23| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc11.base_24|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_23|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_24| 1) |v_main_#t~malloc10.base_23| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|)))) is different from false [2018-03-28 12:21:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:51,081 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:51,082 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:51,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:51,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:51,082 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:51,082 INFO L87 Difference]: Start difference. First operand 235 states and 256 transitions. Second operand 12 states. [2018-03-28 12:21:51,100 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_23| Int) (|v_main_#t~malloc11.base_24| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_23| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc11.base_24|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_23|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_24| 1) |v_main_#t~malloc10.base_23| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|)))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:21:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:51,457 INFO L93 Difference]: Finished difference Result 350 states and 379 transitions. [2018-03-28 12:21:51,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:51,458 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-03-28 12:21:51,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:51,459 INFO L225 Difference]: With dead ends: 350 [2018-03-28 12:21:51,459 INFO L226 Difference]: Without dead ends: 336 [2018-03-28 12:21:51,459 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-03-28 12:21:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 235. [2018-03-28 12:21:51,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-03-28 12:21:51,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 256 transitions. [2018-03-28 12:21:51,479 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 256 transitions. Word has length 56 [2018-03-28 12:21:51,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:51,480 INFO L459 AbstractCegarLoop]: Abstraction has 235 states and 256 transitions. [2018-03-28 12:21:51,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 256 transitions. [2018-03-28 12:21:51,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-03-28 12:21:51,481 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:51,481 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, 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] [2018-03-28 12:21:51,481 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:51,481 INFO L82 PathProgramCache]: Analyzing trace with hash 957424230, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:51,490 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:51,511 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:51,542 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:51,543 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 27 [2018-03-28 12:21:51,545 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 23 treesize of output 15 [2018-03-28 12:21:51,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:51,548 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:51,552 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. [2018-03-28 12:21:51,552 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:51,595 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:51,612 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:51,623 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:51,647 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_26| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_26|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_26| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_26| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:21:51,651 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_25| Int) (|v_main_#t~malloc11.base_26| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_25| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc10.base_25|) 0)) (not (= (select .cse0 |v_main_#t~malloc11.base_26|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_26| 1) |v_main_#t~malloc10.base_25| 0) |v_main_#t~malloc11.base_26| 0))))) is different from false [2018-03-28 12:21:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:51,708 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:51,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:51,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:51,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:51,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:51,710 INFO L87 Difference]: Start difference. First operand 235 states and 256 transitions. Second operand 12 states. [2018-03-28 12:21:51,720 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_25| Int) (|v_main_#t~malloc11.base_26| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_25| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc10.base_25|) 0)) (not (= (select .cse0 |v_main_#t~malloc11.base_26|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_26| 1) |v_main_#t~malloc10.base_25| 0) |v_main_#t~malloc11.base_26| 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:21:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:52,132 INFO L93 Difference]: Finished difference Result 348 states and 376 transitions. [2018-03-28 12:21:52,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:52,133 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-03-28 12:21:52,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:52,135 INFO L225 Difference]: With dead ends: 348 [2018-03-28 12:21:52,135 INFO L226 Difference]: Without dead ends: 334 [2018-03-28 12:21:52,136 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:52,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-03-28 12:21:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 234. [2018-03-28 12:21:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-03-28 12:21:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2018-03-28 12:21:52,161 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 56 [2018-03-28 12:21:52,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:52,162 INFO L459 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2018-03-28 12:21:52,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2018-03-28 12:21:52,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-03-28 12:21:52,163 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:52,163 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, 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] [2018-03-28 12:21:52,163 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:52,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1263268639, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:52,172 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:52,194 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:52,218 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:52,218 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 27 [2018-03-28 12:21:52,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-28 12:21:52,221 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:52,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:52,228 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. [2018-03-28 12:21:52,228 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:52,266 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:52,270 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:52,283 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:52,302 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_28| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_28|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_28| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_28| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:21:52,306 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_27| Int) (|v_main_#t~malloc11.base_28| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_27| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_28|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_28| 1) |v_main_#t~malloc10.base_27| 0) |v_main_#t~malloc11.base_28| 0) |c_old(#valid)|) (not (= (select |c_#valid| |v_main_#t~malloc10.base_27|) 0))))) is different from false [2018-03-28 12:21:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:52,359 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:52,359 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:52,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:52,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:52,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:52,360 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 12 states. [2018-03-28 12:21:52,370 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc10.base_27| Int) (|v_main_#t~malloc11.base_28| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_27| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_28|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_28| 1) |v_main_#t~malloc10.base_27| 0) |v_main_#t~malloc11.base_28| 0) |c_old(#valid)|) (not (= (select |c_#valid| |v_main_#t~malloc10.base_27|) 0)))))) is different from false [2018-03-28 12:21:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:53,126 INFO L93 Difference]: Finished difference Result 349 states and 377 transitions. [2018-03-28 12:21:53,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:53,126 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-03-28 12:21:53,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:53,127 INFO L225 Difference]: With dead ends: 349 [2018-03-28 12:21:53,127 INFO L226 Difference]: Without dead ends: 335 [2018-03-28 12:21:53,128 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:53,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-03-28 12:21:53,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 234. [2018-03-28 12:21:53,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-03-28 12:21:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2018-03-28 12:21:53,144 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 56 [2018-03-28 12:21:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:53,145 INFO L459 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2018-03-28 12:21:53,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2018-03-28 12:21:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-03-28 12:21:53,145 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:53,145 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, 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] [2018-03-28 12:21:53,146 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:53,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1247113356, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:53,152 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:53,174 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:53,383 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:53,384 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 27 [2018-03-28 12:21:53,386 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 23 treesize of output 15 [2018-03-28 12:21:53,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:53,424 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:53,447 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. [2018-03-28 12:21:53,447 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:21:53,507 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:21:53,523 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:21:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:53,530 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:53,623 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_30| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_30|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc11.base_30| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_30| 0)))) is different from false [2018-03-28 12:21:53,632 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_30| Int) (|v_main_#t~malloc10.base_29| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_29| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc10.base_29|) 0)) (not (= 0 (select .cse0 |v_main_#t~malloc11.base_30|))) (= (store (store (store .cse0 |v_main_#t~malloc11.base_30| 1) |v_main_#t~malloc10.base_29| 0) |v_main_#t~malloc11.base_30| 0) |c_old(#valid)|)))) is different from false [2018-03-28 12:21:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:53,673 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:21:53,673 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:21:53,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:21:53,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:21:53,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:21:53,674 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 12 states. [2018-03-28 12:21:53,683 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_30| Int) (|v_main_#t~malloc10.base_29| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_29| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc10.base_29|) 0)) (not (= 0 (select .cse0 |v_main_#t~malloc11.base_30|))) (= (store (store (store .cse0 |v_main_#t~malloc11.base_30| 1) |v_main_#t~malloc10.base_29| 0) |v_main_#t~malloc11.base_30| 0) |c_old(#valid)|))))) is different from false [2018-03-28 12:21:53,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:53,940 INFO L93 Difference]: Finished difference Result 237 states and 254 transitions. [2018-03-28 12:21:53,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:21:53,940 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2018-03-28 12:21:53,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:53,941 INFO L225 Difference]: With dead ends: 237 [2018-03-28 12:21:53,941 INFO L226 Difference]: Without dead ends: 223 [2018-03-28 12:21:53,942 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:21:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-03-28 12:21:53,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 120. [2018-03-28 12:21:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-03-28 12:21:53,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 128 transitions. [2018-03-28 12:21:53,954 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 128 transitions. Word has length 57 [2018-03-28 12:21:53,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:53,954 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 128 transitions. [2018-03-28 12:21:53,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:21:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 128 transitions. [2018-03-28 12:21:53,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-03-28 12:21:53,954 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:53,954 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:53,954 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:53,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1035920506, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:53,961 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:53,986 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:54,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:21:54,012 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,018 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 [2018-03-28 12:21:54,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,029 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:13 [2018-03-28 12:21:54,044 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:54,045 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:54,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:21:54,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,056 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:54,057 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:54,057 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 [2018-03-28 12:21:54,057 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,062 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:13 [2018-03-28 12:21:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:54,433 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:54,937 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 10 treesize of output 3 [2018-03-28 12:21:54,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-03-28 12:21:54,950 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-28 12:21:54,951 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,952 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 12 treesize of output 3 [2018-03-28 12:21:54,952 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,954 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:54,958 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-03-28 12:21:54,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:55,012 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:21:55,013 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2018-03-28 12:21:55,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-03-28 12:21:55,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-03-28 12:21:55,013 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1373, Unknown=0, NotChecked=0, Total=1482 [2018-03-28 12:21:55,014 INFO L87 Difference]: Start difference. First operand 120 states and 128 transitions. Second operand 39 states. [2018-03-28 12:21:57,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:21:57,302 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2018-03-28 12:21:57,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-03-28 12:21:57,303 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 58 [2018-03-28 12:21:57,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:21:57,304 INFO L225 Difference]: With dead ends: 153 [2018-03-28 12:21:57,304 INFO L226 Difference]: Without dead ends: 152 [2018-03-28 12:21:57,305 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=607, Invalid=5399, Unknown=0, NotChecked=0, Total=6006 [2018-03-28 12:21:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-03-28 12:21:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2018-03-28 12:21:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-03-28 12:21:57,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 128 transitions. [2018-03-28 12:21:57,316 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 128 transitions. Word has length 58 [2018-03-28 12:21:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:21:57,316 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 128 transitions. [2018-03-28 12:21:57,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-03-28 12:21:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 128 transitions. [2018-03-28 12:21:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-03-28 12:21:57,317 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:21:57,317 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:21:57,317 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:21:57,317 INFO L82 PathProgramCache]: Analyzing trace with hash -2054739622, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:21:57,323 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:21:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:21:57,345 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:21:57,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-03-28 12:21:57,347 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,352 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 [2018-03-28 12:21:57,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,356 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:21:57,367 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:57,368 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 [2018-03-28 12:21:57,368 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,376 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:57,377 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:21:57,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-03-28 12:21:57,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,383 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,383 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:21:57,400 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 [2018-03-28 12:21:57,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-28 12:21:57,401 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,403 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,406 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,406 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-03-28 12:21:57,417 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 26 treesize of output 27 [2018-03-28 12:21:57,419 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 [2018-03-28 12:21:57,419 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:57,426 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:21:57,426 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:26 [2018-03-28 12:21:57,588 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 33 treesize of output 32 [2018-03-28 12:21:57,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 25 [2018-03-28 12:21:57,597 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:21:57,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:57,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-03-28 12:21:57,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:40, output treesize:45 [2018-03-28 12:21:57,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-03-28 12:21:57,695 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 17 treesize of output 14 [2018-03-28 12:21:57,695 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:21:57,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:57,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:21:57,703 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-03-28 12:21:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:57,777 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:21:58,627 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2018-03-28 12:21:58,641 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 [2018-03-28 12:21:58,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:58,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-03-28 12:21:58,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-03-28 12:21:58,657 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:58,660 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:58,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-03-28 12:21:58,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-03-28 12:21:58,663 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:21:58,665 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:21:58,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:21:58,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:21:58,693 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:57, output treesize:84 [2018-03-28 12:21:58,954 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:21:58,975 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:21:58,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2018-03-28 12:21:58,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-03-28 12:21:58,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-03-28 12:21:58,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1369, Unknown=0, NotChecked=0, Total=1482 [2018-03-28 12:21:58,976 INFO L87 Difference]: Start difference. First operand 120 states and 128 transitions. Second operand 39 states. [2018-03-28 12:22:06,125 WARN L151 SmtUtils]: Spent 3923ms on a formula simplification. DAG size of input: 71 DAG size of output 53 [2018-03-28 12:22:10,017 WARN L151 SmtUtils]: Spent 1835ms on a formula simplification. DAG size of input: 49 DAG size of output 34 [2018-03-28 12:22:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:22:10,568 INFO L93 Difference]: Finished difference Result 138 states and 146 transitions. [2018-03-28 12:22:10,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-03-28 12:22:10,568 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 61 [2018-03-28 12:22:10,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:22:10,569 INFO L225 Difference]: With dead ends: 138 [2018-03-28 12:22:10,569 INFO L226 Difference]: Without dead ends: 137 [2018-03-28 12:22:10,569 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=314, Invalid=2990, Unknown=2, NotChecked=0, Total=3306 [2018-03-28 12:22:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-03-28 12:22:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2018-03-28 12:22:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-03-28 12:22:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 140 transitions. [2018-03-28 12:22:10,589 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 140 transitions. Word has length 61 [2018-03-28 12:22:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:22:10,590 INFO L459 AbstractCegarLoop]: Abstraction has 131 states and 140 transitions. [2018-03-28 12:22:10,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-03-28 12:22:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 140 transitions. [2018-03-28 12:22:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-28 12:22:10,591 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:22:10,591 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:22:10,591 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:22:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash 727581190, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:22:10,601 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:22:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:22:10,629 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:22:10,635 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 [2018-03-28 12:22:10,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:10,641 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 [2018-03-28 12:22:10,641 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:10,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:10,646 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:13 [2018-03-28 12:22:10,661 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:10,661 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:10,662 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 [2018-03-28 12:22:10,662 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:10,668 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:10,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:22:10,669 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:10,673 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:10,674 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:13 [2018-03-28 12:22:10,977 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:10,977 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:22:11,658 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 6 treesize of output 1 [2018-03-28 12:22:11,658 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:11,661 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-03-28 12:22:11,669 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-28 12:22:11,669 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:11,670 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 12 treesize of output 3 [2018-03-28 12:22:11,671 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:11,674 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:11,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:11,677 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-03-28 12:22:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:11,762 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:22:11,763 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 45 [2018-03-28 12:22:11,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-03-28 12:22:11,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-03-28 12:22:11,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1921, Unknown=0, NotChecked=0, Total=2070 [2018-03-28 12:22:11,764 INFO L87 Difference]: Start difference. First operand 131 states and 140 transitions. Second operand 46 states. [2018-03-28 12:22:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:22:14,887 INFO L93 Difference]: Finished difference Result 189 states and 201 transitions. [2018-03-28 12:22:14,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-03-28 12:22:14,887 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 62 [2018-03-28 12:22:14,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:22:14,888 INFO L225 Difference]: With dead ends: 189 [2018-03-28 12:22:14,888 INFO L226 Difference]: Without dead ends: 188 [2018-03-28 12:22:14,890 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1632 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=935, Invalid=8185, Unknown=0, NotChecked=0, Total=9120 [2018-03-28 12:22:14,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-03-28 12:22:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2018-03-28 12:22:14,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-03-28 12:22:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2018-03-28 12:22:14,910 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 62 [2018-03-28 12:22:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:22:14,910 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 192 transitions. [2018-03-28 12:22:14,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-03-28 12:22:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 192 transitions. [2018-03-28 12:22:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-03-28 12:22:14,911 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:22:14,912 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:22:14,912 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:22:14,912 INFO L82 PathProgramCache]: Analyzing trace with hash -740387276, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:22:14,920 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:22:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:22:14,958 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:22:14,970 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 [2018-03-28 12:22:14,970 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:14,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:14,975 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-03-28 12:22:14,991 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 [2018-03-28 12:22:14,992 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 [2018-03-28 12:22:14,992 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:14,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:14,998 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. [2018-03-28 12:22:14,999 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-03-28 12:22:15,092 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 28 treesize of output 22 [2018-03-28 12:22:15,094 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:15,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2018-03-28 12:22:15,100 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:15,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:15,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:15,124 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:49 [2018-03-28 12:22:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:15,255 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:22:15,567 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 29 treesize of output 25 [2018-03-28 12:22:15,581 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:15,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-03-28 12:22:15,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:15,587 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:15,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:15,593 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:54 [2018-03-28 12:22:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:15,787 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:22:15,787 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2018-03-28 12:22:15,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-03-28 12:22:15,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-03-28 12:22:15,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1076, Unknown=0, NotChecked=0, Total=1190 [2018-03-28 12:22:15,789 INFO L87 Difference]: Start difference. First operand 182 states and 192 transitions. Second operand 35 states. [2018-03-28 12:22:21,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:22:21,864 INFO L93 Difference]: Finished difference Result 226 states and 237 transitions. [2018-03-28 12:22:21,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-28 12:22:21,865 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 65 [2018-03-28 12:22:21,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:22:21,866 INFO L225 Difference]: With dead ends: 226 [2018-03-28 12:22:21,866 INFO L226 Difference]: Without dead ends: 225 [2018-03-28 12:22:21,867 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=539, Invalid=4431, Unknown=0, NotChecked=0, Total=4970 [2018-03-28 12:22:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-03-28 12:22:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 201. [2018-03-28 12:22:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-03-28 12:22:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 211 transitions. [2018-03-28 12:22:21,879 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 211 transitions. Word has length 65 [2018-03-28 12:22:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:22:21,879 INFO L459 AbstractCegarLoop]: Abstraction has 201 states and 211 transitions. [2018-03-28 12:22:21,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-03-28 12:22:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 211 transitions. [2018-03-28 12:22:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-03-28 12:22:21,880 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:22:21,880 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:22:21,880 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:22:21,880 INFO L82 PathProgramCache]: Analyzing trace with hash -76833573, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:22:21,886 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:22:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:22:21,909 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:22:21,928 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 [2018-03-28 12:22:21,928 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:21,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:21,932 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-03-28 12:22:21,948 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 [2018-03-28 12:22:21,949 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 [2018-03-28 12:22:21,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:21,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:21,955 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. [2018-03-28 12:22:21,955 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-03-28 12:22:22,232 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 48 treesize of output 38 [2018-03-28 12:22:22,234 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:22,235 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:22,235 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:22,236 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:22,236 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:22,238 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:22,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 93 [2018-03-28 12:22:22,247 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:22,276 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:22,298 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:22,298 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:69, output treesize:73 [2018-03-28 12:22:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:22,433 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:22:23,007 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 59 treesize of output 51 [2018-03-28 12:22:23,046 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:23,046 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:23,046 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:23,047 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:23,047 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:23,047 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:23,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 49 [2018-03-28 12:22:23,054 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:23,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:23,076 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:23,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:72, output treesize:86 [2018-03-28 12:22:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:23,305 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:22:23,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2018-03-28 12:22:23,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-03-28 12:22:23,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-03-28 12:22:23,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1599, Unknown=0, NotChecked=0, Total=1806 [2018-03-28 12:22:23,307 INFO L87 Difference]: Start difference. First operand 201 states and 211 transitions. Second operand 43 states. [2018-03-28 12:22:25,100 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 69 DAG size of output 63 [2018-03-28 12:22:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:22:27,627 INFO L93 Difference]: Finished difference Result 255 states and 272 transitions. [2018-03-28 12:22:27,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-03-28 12:22:27,628 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 66 [2018-03-28 12:22:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:22:27,629 INFO L225 Difference]: With dead ends: 255 [2018-03-28 12:22:27,629 INFO L226 Difference]: Without dead ends: 254 [2018-03-28 12:22:27,630 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=873, Invalid=5289, Unknown=0, NotChecked=0, Total=6162 [2018-03-28 12:22:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-03-28 12:22:27,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 229. [2018-03-28 12:22:27,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-03-28 12:22:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 243 transitions. [2018-03-28 12:22:27,647 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 243 transitions. Word has length 66 [2018-03-28 12:22:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:22:27,648 INFO L459 AbstractCegarLoop]: Abstraction has 229 states and 243 transitions. [2018-03-28 12:22:27,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-03-28 12:22:27,648 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 243 transitions. [2018-03-28 12:22:27,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-03-28 12:22:27,648 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:22:27,648 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:22:27,648 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:22:27,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1610415124, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:22:27,654 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:22:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:22:27,679 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:22:27,682 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 [2018-03-28 12:22:27,682 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,686 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 [2018-03-28 12:22:27,686 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,690 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:22:27,700 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:27,701 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:27,701 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 [2018-03-28 12:22:27,702 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,708 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 [2018-03-28 12:22:27,708 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,712 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:22:27,725 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 [2018-03-28 12:22:27,727 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 [2018-03-28 12:22:27,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,728 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-03-28 12:22:27,742 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 26 treesize of output 27 [2018-03-28 12:22:27,744 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 [2018-03-28 12:22:27,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:27,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:22:27,752 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:26 [2018-03-28 12:22:27,927 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 33 treesize of output 32 [2018-03-28 12:22:27,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 25 [2018-03-28 12:22:27,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:27,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:27,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-03-28 12:22:27,961 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:49 [2018-03-28 12:22:28,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-03-28 12:22:28,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:22:28,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:28,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:28,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:28,065 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-03-28 12:22:28,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-03-28 12:22:28,135 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 17 treesize of output 14 [2018-03-28 12:22:28,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:28,138 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:28,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:28,143 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-03-28 12:22:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:28,230 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:22:29,358 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2018-03-28 12:22:29,368 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 [2018-03-28 12:22:29,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-03-28 12:22:29,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-03-28 12:22:29,380 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,382 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2018-03-28 12:22:29,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2018-03-28 12:22:29,390 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,400 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:22:29,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 12:22:29,411 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,415 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 12 [2018-03-28 12:22:29,416 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:29,425 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-03-28 12:22:29,468 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 52 [2018-03-28 12:22:29,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 24 [2018-03-28 12:22:29,543 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 24 [2018-03-28 12:22:29,545 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,547 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:29,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-03-28 12:22:29,549 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 32 [2018-03-28 12:22:29,619 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-03-28 12:22:29,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 32 [2018-03-28 12:22:29,632 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 3 xjuncts. [2018-03-28 12:22:29,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-03-28 12:22:29,694 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:29,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-03-28 12:22:29,702 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:29,727 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:22:29,746 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:22:29,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-03-28 12:22:29,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 32 [2018-03-28 12:22:29,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2018-03-28 12:22:29,780 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:29,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2018-03-28 12:22:29,786 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:29,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-03-28 12:22:29,788 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:29,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 32 [2018-03-28 12:22:29,827 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 3 xjuncts. [2018-03-28 12:22:29,832 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 23 treesize of output 19 [2018-03-28 12:22:29,833 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:29,856 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:22:29,873 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:22:29,900 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-03-28 12:22:29,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:22:29,926 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 6 variables, input treesize:58, output treesize:84 [2018-03-28 12:22:30,411 WARN L151 SmtUtils]: Spent 309ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-03-28 12:22:30,781 WARN L148 SmtUtils]: Spent 304ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-28 12:22:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:30,830 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:22:30,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 48 [2018-03-28 12:22:30,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-03-28 12:22:30,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-03-28 12:22:30,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2018-03-28 12:22:30,831 INFO L87 Difference]: Start difference. First operand 229 states and 243 transitions. Second operand 49 states. [2018-03-28 12:22:32,284 WARN L151 SmtUtils]: Spent 243ms on a formula simplification. DAG size of input: 125 DAG size of output 85 [2018-03-28 12:22:33,173 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 104 DAG size of output 73 [2018-03-28 12:22:33,459 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 102 DAG size of output 78 [2018-03-28 12:22:33,797 WARN L151 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 106 DAG size of output 81 [2018-03-28 12:22:34,031 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 92 DAG size of output 67 [2018-03-28 12:22:37,006 WARN L151 SmtUtils]: Spent 2899ms on a formula simplification. DAG size of input: 88 DAG size of output 57 [2018-03-28 12:22:37,451 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 89 DAG size of output 48 [2018-03-28 12:22:37,872 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 98 DAG size of output 45 [2018-03-28 12:22:39,499 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 93 DAG size of output 51 [2018-03-28 12:22:39,903 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 100 DAG size of output 48 [2018-03-28 12:22:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:22:42,271 INFO L93 Difference]: Finished difference Result 236 states and 249 transitions. [2018-03-28 12:22:42,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-03-28 12:22:42,271 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 72 [2018-03-28 12:22:42,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:22:42,272 INFO L225 Difference]: With dead ends: 236 [2018-03-28 12:22:42,272 INFO L226 Difference]: Without dead ends: 235 [2018-03-28 12:22:42,273 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=813, Invalid=5667, Unknown=0, NotChecked=0, Total=6480 [2018-03-28 12:22:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-03-28 12:22:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 154. [2018-03-28 12:22:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-03-28 12:22:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2018-03-28 12:22:42,291 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 72 [2018-03-28 12:22:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:22:42,291 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2018-03-28 12:22:42,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-03-28 12:22:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2018-03-28 12:22:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-03-28 12:22:42,291 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:22:42,292 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:22:42,292 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:22:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2103712966, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:22:42,298 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:22:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:22:42,324 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:22:42,331 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 [2018-03-28 12:22:42,331 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,337 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 [2018-03-28 12:22:42,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,341 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-03-28 12:22:42,356 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:42,356 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:42,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:22:42,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,367 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:42,367 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:42,368 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 [2018-03-28 12:22:42,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,373 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2018-03-28 12:22:42,392 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 [2018-03-28 12:22:42,393 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 [2018-03-28 12:22:42,393 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,394 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:42,399 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. [2018-03-28 12:22:42,399 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-03-28 12:22:42,448 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 [2018-03-28 12:22:42,454 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 14 treesize of output 11 [2018-03-28 12:22:42,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:42,457 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:42,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:42,466 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:46 [2018-03-28 12:22:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:42,846 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:22:43,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-03-28 12:22:43,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-28 12:22:43,599 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,606 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,607 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:45 [2018-03-28 12:22:43,860 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 27 treesize of output 21 [2018-03-28 12:22:43,860 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,873 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 27 treesize of output 21 [2018-03-28 12:22:43,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:22:43,897 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 12 treesize of output 3 [2018-03-28 12:22:43,898 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,901 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:22:43,926 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 12 treesize of output 3 [2018-03-28 12:22:43,926 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,930 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:43,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:43,940 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:55, output treesize:21 [2018-03-28 12:22:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:44,024 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:22:44,024 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2018-03-28 12:22:44,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-03-28 12:22:44,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-03-28 12:22:44,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2590, Unknown=0, NotChecked=0, Total=2756 [2018-03-28 12:22:44,025 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand 53 states. [2018-03-28 12:22:45,247 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 58 DAG size of output 57 [2018-03-28 12:22:51,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:22:51,082 INFO L93 Difference]: Finished difference Result 255 states and 270 transitions. [2018-03-28 12:22:51,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-03-28 12:22:51,083 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 76 [2018-03-28 12:22:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:22:51,084 INFO L225 Difference]: With dead ends: 255 [2018-03-28 12:22:51,084 INFO L226 Difference]: Without dead ends: 254 [2018-03-28 12:22:51,085 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3702 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1148, Invalid=14352, Unknown=0, NotChecked=0, Total=15500 [2018-03-28 12:22:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-03-28 12:22:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 154. [2018-03-28 12:22:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-03-28 12:22:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2018-03-28 12:22:51,104 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 76 [2018-03-28 12:22:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:22:51,105 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2018-03-28 12:22:51,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-03-28 12:22:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2018-03-28 12:22:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-03-28 12:22:51,105 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:22:51,106 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:22:51,106 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:22:51,106 INFO L82 PathProgramCache]: Analyzing trace with hash 138511220, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:22:51,111 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:22:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:22:51,139 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:22:51,146 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 [2018-03-28 12:22:51,146 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,151 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 [2018-03-28 12:22:51,152 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-03-28 12:22:51,170 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,170 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:22:51,171 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,181 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,181 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,182 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 [2018-03-28 12:22:51,182 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,187 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2018-03-28 12:22:51,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-03-28 12:22:51,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-28 12:22:51,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:51,213 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. [2018-03-28 12:22:51,214 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-03-28 12:22:51,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2018-03-28 12:22:51,433 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,434 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,436 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:22:51,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 58 [2018-03-28 12:22:51,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:22:51,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:51,478 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:51,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:61, output treesize:84 [2018-03-28 12:22:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:51,842 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:22:52,847 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 44 treesize of output 38 [2018-03-28 12:22:52,870 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:52,871 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:52,871 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:22:52,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-28 12:22:52,877 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:52,885 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:52,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:52,895 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:77 [2018-03-28 12:22:53,191 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 27 treesize of output 21 [2018-03-28 12:22:53,191 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:53,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:22:53,215 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 12 treesize of output 3 [2018-03-28 12:22:53,216 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:53,219 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:53,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-03-28 12:22:53,246 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 12 treesize of output 3 [2018-03-28 12:22:53,247 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:53,251 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:22:53,263 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 19 treesize of output 13 [2018-03-28 12:22:53,263 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:22:53,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:22:53,273 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:55, output treesize:21 [2018-03-28 12:22:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:22:53,366 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:22:53,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 56 [2018-03-28 12:22:53,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-03-28 12:22:53,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-03-28 12:22:53,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=2969, Unknown=0, NotChecked=0, Total=3192 [2018-03-28 12:22:53,367 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand 57 states. [2018-03-28 12:22:55,031 WARN L151 SmtUtils]: Spent 463ms on a formula simplification. DAG size of input: 59 DAG size of output 57 [2018-03-28 12:22:55,676 WARN L151 SmtUtils]: Spent 452ms on a formula simplification. DAG size of input: 57 DAG size of output 55 [2018-03-28 12:22:55,880 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 101 DAG size of output 69 [2018-03-28 12:22:57,542 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 96 DAG size of output 82 [2018-03-28 12:22:58,392 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 75 DAG size of output 72 [2018-03-28 12:22:58,571 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 86 DAG size of output 80 [2018-03-28 12:22:59,371 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 89 DAG size of output 75 [2018-03-28 12:23:01,715 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 88 DAG size of output 74 [2018-03-28 12:23:02,731 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 84 DAG size of output 73 [2018-03-28 12:23:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:23:03,087 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2018-03-28 12:23:03,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-03-28 12:23:03,087 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 79 [2018-03-28 12:23:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:23:03,088 INFO L225 Difference]: With dead ends: 260 [2018-03-28 12:23:03,088 INFO L226 Difference]: Without dead ends: 259 [2018-03-28 12:23:03,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4608 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1549, Invalid=16273, Unknown=0, NotChecked=0, Total=17822 [2018-03-28 12:23:03,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-03-28 12:23:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 154. [2018-03-28 12:23:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-03-28 12:23:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2018-03-28 12:23:03,121 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 79 [2018-03-28 12:23:03,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:23:03,122 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2018-03-28 12:23:03,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-03-28 12:23:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2018-03-28 12:23:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-03-28 12:23:03,122 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:23:03,123 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:23:03,123 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:23:03,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1497310022, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:23:03,131 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:23:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:23:03,159 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:23:03,170 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 [2018-03-28 12:23:03,170 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:03,174 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 [2018-03-28 12:23:03,174 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:03,177 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:03,177 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:13 [2018-03-28 12:23:03,189 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:03,190 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:03,190 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 [2018-03-28 12:23:03,190 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:03,196 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:03,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:23:03,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:03,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:03,201 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:13 [2018-03-28 12:23:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:03,628 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:23:04,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-03-28 12:23:04,559 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:04,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-03-28 12:23:04,571 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 12 treesize of output 3 [2018-03-28 12:23:04,572 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:04,572 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-28 12:23:04,572 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:04,574 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:04,577 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:04,578 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-03-28 12:23:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:04,650 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:23:04,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 54 [2018-03-28 12:23:04,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-03-28 12:23:04,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-03-28 12:23:04,651 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2793, Unknown=0, NotChecked=0, Total=2970 [2018-03-28 12:23:04,652 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand 55 states. [2018-03-28 12:23:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:23:09,448 INFO L93 Difference]: Finished difference Result 273 states and 289 transitions. [2018-03-28 12:23:09,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-03-28 12:23:09,448 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 80 [2018-03-28 12:23:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:23:09,449 INFO L225 Difference]: With dead ends: 273 [2018-03-28 12:23:09,449 INFO L226 Difference]: Without dead ends: 272 [2018-03-28 12:23:09,450 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3230 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1348, Invalid=14654, Unknown=0, NotChecked=0, Total=16002 [2018-03-28 12:23:09,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-03-28 12:23:09,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 176. [2018-03-28 12:23:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-03-28 12:23:09,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 188 transitions. [2018-03-28 12:23:09,478 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 188 transitions. Word has length 80 [2018-03-28 12:23:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:23:09,478 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 188 transitions. [2018-03-28 12:23:09,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-03-28 12:23:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 188 transitions. [2018-03-28 12:23:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:23:09,479 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:23:09,480 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:23:09,480 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:23:09,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1524329472, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:23:09,494 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:23:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:23:09,533 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:23:09,550 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 [2018-03-28 12:23:09,551 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,557 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 [2018-03-28 12:23:09,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,562 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-03-28 12:23:09,578 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:09,579 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:09,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:23:09,580 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,592 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:09,592 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:09,593 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 [2018-03-28 12:23:09,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,599 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2018-03-28 12:23:09,619 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 [2018-03-28 12:23:09,621 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 [2018-03-28 12:23:09,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:09,627 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. [2018-03-28 12:23:09,627 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-03-28 12:23:09,765 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 28 treesize of output 22 [2018-03-28 12:23:09,769 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:09,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2018-03-28 12:23:09,774 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:23:09,786 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:09,801 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:09,801 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:66 [2018-03-28 12:23:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:10,257 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:23:11,218 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 29 treesize of output 25 [2018-03-28 12:23:11,234 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:11,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-03-28 12:23:11,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,242 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,250 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:61 [2018-03-28 12:23:11,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-03-28 12:23:11,549 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 12 treesize of output 3 [2018-03-28 12:23:11,549 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,567 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 19 treesize of output 13 [2018-03-28 12:23:11,567 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,579 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 27 treesize of output 21 [2018-03-28 12:23:11,579 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:23:11,603 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 12 treesize of output 3 [2018-03-28 12:23:11,603 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,607 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:11,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:11,616 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:55, output treesize:21 [2018-03-28 12:23:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:11,707 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:23:11,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 58 [2018-03-28 12:23:11,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-03-28 12:23:11,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-03-28 12:23:11,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3219, Unknown=0, NotChecked=0, Total=3422 [2018-03-28 12:23:11,709 INFO L87 Difference]: Start difference. First operand 176 states and 188 transitions. Second operand 59 states. [2018-03-28 12:23:13,278 WARN L148 SmtUtils]: Spent 468ms on a formula simplification that was a NOOP. DAG size: 60 [2018-03-28 12:23:13,586 WARN L148 SmtUtils]: Spent 137ms on a formula simplification that was a NOOP. DAG size: 58 [2018-03-28 12:23:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:23:19,347 INFO L93 Difference]: Finished difference Result 300 states and 315 transitions. [2018-03-28 12:23:19,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-03-28 12:23:19,347 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 83 [2018-03-28 12:23:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:23:19,348 INFO L225 Difference]: With dead ends: 300 [2018-03-28 12:23:19,348 INFO L226 Difference]: Without dead ends: 299 [2018-03-28 12:23:19,349 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4556 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1379, Invalid=17253, Unknown=0, NotChecked=0, Total=18632 [2018-03-28 12:23:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-03-28 12:23:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 177. [2018-03-28 12:23:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-03-28 12:23:19,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 189 transitions. [2018-03-28 12:23:19,373 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 189 transitions. Word has length 83 [2018-03-28 12:23:19,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:23:19,374 INFO L459 AbstractCegarLoop]: Abstraction has 177 states and 189 transitions. [2018-03-28 12:23:19,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-03-28 12:23:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 189 transitions. [2018-03-28 12:23:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-03-28 12:23:19,374 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:23:19,374 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:23:19,374 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:23:19,375 INFO L82 PathProgramCache]: Analyzing trace with hash 882641222, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:23:19,380 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:23:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:23:19,409 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:23:19,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-03-28 12:23:19,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:19,425 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 [2018-03-28 12:23:19,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:19,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:19,429 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:13 [2018-03-28 12:23:19,443 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:19,443 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:19,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:23:19,444 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:19,453 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:19,454 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:19,454 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 [2018-03-28 12:23:19,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:19,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:19,459 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:13 [2018-03-28 12:23:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:19,992 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:23:21,166 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 6 treesize of output 1 [2018-03-28 12:23:21,166 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:21,169 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-03-28 12:23:21,177 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-28 12:23:21,177 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:21,178 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 12 treesize of output 3 [2018-03-28 12:23:21,178 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:21,181 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:21,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:21,184 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-03-28 12:23:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:21,296 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:23:21,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 61 [2018-03-28 12:23:21,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-03-28 12:23:21,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-03-28 12:23:21,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=3529, Unknown=0, NotChecked=0, Total=3782 [2018-03-28 12:23:21,297 INFO L87 Difference]: Start difference. First operand 177 states and 189 transitions. Second operand 62 states. [2018-03-28 12:23:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:23:27,883 INFO L93 Difference]: Finished difference Result 314 states and 331 transitions. [2018-03-28 12:23:27,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-03-28 12:23:27,883 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 84 [2018-03-28 12:23:27,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:23:27,884 INFO L225 Difference]: With dead ends: 314 [2018-03-28 12:23:27,884 INFO L226 Difference]: Without dead ends: 313 [2018-03-28 12:23:27,886 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4937 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=2214, Invalid=20738, Unknown=0, NotChecked=0, Total=22952 [2018-03-28 12:23:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-03-28 12:23:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 200. [2018-03-28 12:23:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-03-28 12:23:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2018-03-28 12:23:27,905 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 84 [2018-03-28 12:23:27,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:23:27,905 INFO L459 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2018-03-28 12:23:27,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-03-28 12:23:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2018-03-28 12:23:27,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-03-28 12:23:27,906 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:23:27,906 INFO L355 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:23:27,906 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:23:27,907 INFO L82 PathProgramCache]: Analyzing trace with hash -39632293, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:23:27,912 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:23:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:23:27,945 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:23:27,978 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 [2018-03-28 12:23:27,978 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:27,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:27,983 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-03-28 12:23:27,998 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 [2018-03-28 12:23:27,999 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 [2018-03-28 12:23:27,999 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:28,000 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:28,004 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. [2018-03-28 12:23:28,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-03-28 12:23:28,950 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 88 treesize of output 70 [2018-03-28 12:23:28,961 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,962 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,962 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,963 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,964 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,965 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,965 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,967 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,968 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,968 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,969 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,970 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,970 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,972 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,973 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,973 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,974 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,974 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,975 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,976 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,976 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,977 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,978 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,978 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,979 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:28,980 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:29,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 42 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 313 [2018-03-28 12:23:29,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:23:29,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:29,262 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:29,262 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:129 [2018-03-28 12:23:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:29,508 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:23:31,437 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 119 treesize of output 103 [2018-03-28 12:23:31,510 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,510 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,511 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,511 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,511 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,511 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,512 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,512 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,512 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,515 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,515 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,515 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,516 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,516 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,516 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,516 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,517 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,517 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,517 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,518 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,518 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,518 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,518 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,519 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,519 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,519 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,520 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,520 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:31,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 44 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 207 [2018-03-28 12:23:31,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:31,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:31,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:31,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:150 [2018-03-28 12:23:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:32,052 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:23:32,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2018-03-28 12:23:32,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-03-28 12:23:32,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-03-28 12:23:32,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=559, Invalid=3863, Unknown=0, NotChecked=0, Total=4422 [2018-03-28 12:23:32,053 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 67 states. [2018-03-28 12:23:36,109 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 137 DAG size of output 121 [2018-03-28 12:23:37,379 WARN L151 SmtUtils]: Spent 1171ms on a formula simplification. DAG size of input: 131 DAG size of output 116 [2018-03-28 12:23:37,658 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 88 DAG size of output 74 [2018-03-28 12:23:37,899 WARN L148 SmtUtils]: Spent 151ms on a formula simplification that was a NOOP. DAG size: 97 [2018-03-28 12:23:38,305 WARN L151 SmtUtils]: Spent 334ms on a formula simplification. DAG size of input: 105 DAG size of output 103 [2018-03-28 12:23:38,468 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 84 DAG size of output 70 [2018-03-28 12:23:38,717 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 83 DAG size of output 69 [2018-03-28 12:23:39,024 WARN L151 SmtUtils]: Spent 214ms on a formula simplification. DAG size of input: 91 DAG size of output 77 [2018-03-28 12:23:39,400 WARN L151 SmtUtils]: Spent 291ms on a formula simplification. DAG size of input: 106 DAG size of output 88 [2018-03-28 12:23:40,093 WARN L151 SmtUtils]: Spent 176ms on a formula simplification. DAG size of input: 80 DAG size of output 70 [2018-03-28 12:23:40,486 WARN L151 SmtUtils]: Spent 266ms on a formula simplification. DAG size of input: 104 DAG size of output 88 [2018-03-28 12:23:41,020 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 71 DAG size of output 63 [2018-03-28 12:23:41,384 WARN L151 SmtUtils]: Spent 240ms on a formula simplification. DAG size of input: 103 DAG size of output 87 [2018-03-28 12:23:42,197 WARN L151 SmtUtils]: Spent 220ms on a formula simplification. DAG size of input: 102 DAG size of output 84 [2018-03-28 12:23:42,901 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 101 DAG size of output 83 [2018-03-28 12:23:43,543 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 100 DAG size of output 82 [2018-03-28 12:23:44,012 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 97 DAG size of output 79 [2018-03-28 12:23:44,399 WARN L151 SmtUtils]: Spent 168ms on a formula simplification. DAG size of input: 95 DAG size of output 79 [2018-03-28 12:23:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:23:44,427 INFO L93 Difference]: Finished difference Result 337 states and 364 transitions. [2018-03-28 12:23:44,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-03-28 12:23:44,428 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 94 [2018-03-28 12:23:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:23:44,429 INFO L225 Difference]: With dead ends: 337 [2018-03-28 12:23:44,429 INFO L226 Difference]: Without dead ends: 336 [2018-03-28 12:23:44,430 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4976 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=2787, Invalid=15573, Unknown=0, NotChecked=0, Total=18360 [2018-03-28 12:23:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-03-28 12:23:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 256. [2018-03-28 12:23:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-03-28 12:23:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 276 transitions. [2018-03-28 12:23:44,463 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 276 transitions. Word has length 94 [2018-03-28 12:23:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:23:44,464 INFO L459 AbstractCegarLoop]: Abstraction has 256 states and 276 transitions. [2018-03-28 12:23:44,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-03-28 12:23:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 276 transitions. [2018-03-28 12:23:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-03-28 12:23:44,465 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:23:44,465 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:23:44,465 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcat_alloca_true_valid_memsafety_true_termination_i__cstrcatErr5RequiresViolation]=== [2018-03-28 12:23:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1813950784, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:23:44,471 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:23:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:23:44,504 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:23:44,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:23:44,512 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,518 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 [2018-03-28 12:23:44,518 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,523 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-03-28 12:23:44,537 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,538 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-03-28 12:23:44,539 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,549 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,550 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-03-28 12:23:44,550 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,556 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2018-03-28 12:23:44,574 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 [2018-03-28 12:23:44,576 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 [2018-03-28 12:23:44,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:44,582 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. [2018-03-28 12:23:44,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-03-28 12:23:44,905 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 48 treesize of output 38 [2018-03-28 12:23:44,907 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,908 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,909 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,910 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,910 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,911 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:23:44,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 93 [2018-03-28 12:23:44,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:23:44,951 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:44,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:44,977 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:106 [2018-03-28 12:23:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:45,559 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:23:47,159 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 59 treesize of output 51 [2018-03-28 12:23:47,190 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:47,191 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:47,191 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:47,191 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:47,192 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:47,192 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:23:47,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 49 [2018-03-28 12:23:47,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,220 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,220 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:93 [2018-03-28 12:23:47,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-03-28 12:23:47,611 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,624 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 27 treesize of output 21 [2018-03-28 12:23:47,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:23:47,648 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 12 treesize of output 3 [2018-03-28 12:23:47,648 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,652 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-03-28 12:23:47,680 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 12 treesize of output 3 [2018-03-28 12:23:47,680 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,685 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:23:47,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:23:47,697 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:55, output treesize:21 [2018-03-28 12:23:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:23:47,814 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:23:47,814 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 70 [2018-03-28 12:23:47,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-03-28 12:23:47,815 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-03-28 12:23:47,815 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=4657, Unknown=0, NotChecked=0, Total=4970 [2018-03-28 12:23:47,815 INFO L87 Difference]: Start difference. First operand 256 states and 276 transitions. Second operand 71 states. [2018-03-28 12:23:53,016 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 114 DAG size of output 100 [2018-03-28 12:23:53,255 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 107 DAG size of output 93 [2018-03-28 12:23:54,114 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 89 DAG size of output 80 [2018-03-28 12:23:54,346 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 100 DAG size of output 85 [2018-03-28 12:23:54,868 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 98 DAG size of output 86 [2018-03-28 12:23:55,221 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 82 DAG size of output 73 Received shutdown request... [2018-03-28 12:23:55,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-03-28 12:23:55,440 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 12:23:55,444 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 12:23:55,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:23:55 BoogieIcfgContainer [2018-03-28 12:23:55,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 12:23:55,445 INFO L168 Benchmark]: Toolchain (without parser) took 139659.86 ms. Allocated memory was 302.5 MB in the beginning and 432.0 MB in the end (delta: 129.5 MB). Free memory was 238.8 MB in the beginning and 373.8 MB in the end (delta: -135.0 MB). Peak memory consumption was 91.9 MB. Max. memory is 5.3 GB. [2018-03-28 12:23:55,446 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.5 MB. Free memory is still 264.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 12:23:55,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.03 ms. Allocated memory is still 302.5 MB. Free memory was 238.8 MB in the beginning and 214.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-03-28 12:23:55,446 INFO L168 Benchmark]: Boogie Preprocessor took 58.85 ms. Allocated memory is still 302.5 MB. Free memory was 214.6 MB in the beginning and 211.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-03-28 12:23:55,446 INFO L168 Benchmark]: RCFGBuilder took 511.96 ms. Allocated memory was 302.5 MB in the beginning and 462.4 MB in the end (delta: 159.9 MB). Free memory was 211.6 MB in the beginning and 396.7 MB in the end (delta: -185.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. [2018-03-28 12:23:55,447 INFO L168 Benchmark]: TraceAbstraction took 138753.15 ms. Allocated memory was 462.4 MB in the beginning and 432.0 MB in the end (delta: -30.4 MB). Free memory was 396.7 MB in the beginning and 373.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 90.0 MB. Max. memory is 5.3 GB. [2018-03-28 12:23:55,448 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.5 MB. Free memory is still 264.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 331.03 ms. Allocated memory is still 302.5 MB. Free memory was 238.8 MB in the beginning and 214.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 58.85 ms. Allocated memory is still 302.5 MB. Free memory was 214.6 MB in the beginning and 211.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 511.96 ms. Allocated memory was 302.5 MB in the beginning and 462.4 MB in the end (delta: 159.9 MB). Free memory was 211.6 MB in the beginning and 396.7 MB in the end (delta: -185.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 138753.15 ms. Allocated memory was 462.4 MB in the beginning and 432.0 MB in the end (delta: -30.4 MB). Free memory was 396.7 MB in the beginning and 373.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 90.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 565]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 565). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 564). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 565]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 565). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 548). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 564). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 544]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 544). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 544]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 544). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (256states) and interpolant automaton (currently 66 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 103. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 11 error locations. TIMEOUT Result, 138.6s OverallTime, 35 OverallIterations, 10 TraceHistogramMax, 103.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2373 SDtfs, 8427 SDslu, 28504 SDs, 0 SdLazy, 27538 SolverSat, 1439 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 28.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4659 GetRequests, 2896 SyntacticMatches, 35 SemanticMatches, 1727 ConstructedPredicates, 40 IntricatePredicates, 0 DeprecatedPredicates, 37815 ImplicationChecksByTransitivity, 97.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=34, 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: 0.5s AutomataMinimizationTime, 34 MinimizatonAttempts, 1566 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 33.0s InterpolantComputationTime, 1907 NumberOfCodeBlocks, 1907 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3744 ConstructedInterpolants, 679 QuantifiedInterpolants, 3941023 SizeOfPredicates, 596 NumberOfNonLiveVariables, 5833 ConjunctsInSsa, 1219 ConjunctsInUnsatCore, 70 InterpolantComputations, 38 PerfectInterpolantSequences, 0/1876 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_12-23-55-455.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_12-23-55-455.csv Completed graceful shutdown