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/cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:30:51,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:30:51,658 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:30:51,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 15:30:51,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 15:30:51,733 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 15:30:51,735 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 15:30:51,737 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 15:30:51,747 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 15:30:51,749 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 15:30:51,750 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 15:30:51,750 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 15:30:51,766 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 15:30:51,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 15:30:51,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 15:30:51,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 15:30:51,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 15:30:51,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 15:30:51,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 15:30:51,802 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 15:30:51,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-05 15:30:51,830 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 [2018-04-05 15:30:51,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:30:51,901 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:30:51,902 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:30:51,902 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:30:51,903 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:30:51,903 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:30:51,903 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:30:51,904 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:30:51,905 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:30:51,912 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:30:51,913 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:30:51,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:30:51,913 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:30:51,913 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:30:51,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:30:51,914 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:30:51,914 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:30:51,914 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:30:51,914 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:30:51,914 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:30:51,915 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:30:51,915 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:30:51,915 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:30:51,915 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:30:51,915 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:30:51,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:30:51,916 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:30:51,916 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:30:51,916 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:30:51,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:30:51,917 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:30:51,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:30:51,917 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:30:51,923 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:30:51,923 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:30:51,923 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:30:51,923 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:30:52,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:30:52,043 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:30:52,057 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:30:52,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:30:52,059 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:30:52,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:52,682 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG764c72425 [2018-04-05 15:30:53,176 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:30:53,177 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:30:53,178 INFO L168 CDTParser]: Scanning cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,198 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:30:53,199 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:30:53,199 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:30:53,199 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,199 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,199 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,199 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,199 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:30:53,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__off_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____time_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_short in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__key_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____u_short in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____u_int in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__uint in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__id_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__ushort in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____key_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__time_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__register_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____u_long in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__ulong in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_long in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____off_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,212 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____id_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____u_char in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,213 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__div_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_int in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,214 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__size_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__u_char in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:53,279 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG764c72425 [2018-04-05 15:30:53,304 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:30:53,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:30:53,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:30:53,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:30:53,333 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:30:53,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:30:53" (1/1) ... [2018-04-05 15:30:53,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6367f0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:53, skipping insertion in model container [2018-04-05 15:30:53,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:30:53" (1/1) ... [2018-04-05 15:30:53,383 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:30:53,479 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:30:53,938 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:30:54,028 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:30:54,042 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 15:30:54,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54 WrapperNode [2018-04-05 15:30:54,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:30:54,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:30:54,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:30:54,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:30:54,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (1/1) ... [2018-04-05 15:30:54,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:30:54,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:30:54,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:30:54,319 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:30:54,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (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 [2018-04-05 15:30:54,727 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:30:54,727 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:30:54,727 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:30:54,727 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:30:54,728 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-04-05 15:30:54,728 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:30:54,728 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:30:54,728 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrcpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:30:54,728 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 15:30:54,728 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 15:30:54,729 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 15:30:54,743 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 15:30:54,743 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 15:30:54,743 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 15:30:54,743 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 15:30:54,744 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 15:30:54,745 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 15:30:54,746 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 15:30:54,746 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 15:30:54,746 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 15:30:54,746 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 15:30:54,746 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 15:30:54,746 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 15:30:54,747 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 15:30:54,765 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 15:30:54,766 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 15:30:54,766 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 15:30:54,766 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 15:30:54,766 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 15:30:54,766 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 15:30:54,766 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 15:30:54,767 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 15:30:54,768 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 15:30:54,769 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 15:30:54,784 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 15:30:54,784 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 15:30:54,784 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 15:30:54,785 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 15:30:54,786 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 15:30:54,787 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 15:30:54,788 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 15:30:54,797 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 15:30:54,797 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 15:30:54,797 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 15:30:54,797 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 15:30:54,798 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 15:30:54,799 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:30:54,800 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:30:54,801 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:30:54,806 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 15:30:54,806 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:30:54,806 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:30:54,806 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:30:54,815 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:30:55,956 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:30:55,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:30:55 BoogieIcfgContainer [2018-04-05 15:30:55,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:30:55,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:30:55,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:30:55,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:30:55,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:30:53" (1/3) ... [2018-04-05 15:30:55,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfa1f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:30:55, skipping insertion in model container [2018-04-05 15:30:55,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:30:54" (2/3) ... [2018-04-05 15:30:55,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfa1f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:30:55, skipping insertion in model container [2018-04-05 15:30:55,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:30:55" (3/3) ... [2018-04-05 15:30:55,985 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:30:56,019 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:30:56,056 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-04-05 15:30:56,197 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:30:56,198 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:30:56,198 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:30:56,198 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:30:56,198 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:30:56,198 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:30:56,198 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:30:56,199 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:30:56,199 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:30:56,200 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:30:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-04-05 15:30:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-05 15:30:56,240 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:30:56,241 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:30:56,242 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:30:56,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1645804893, 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 [2018-04-05 15:30:56,297 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:30:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:30:56,418 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:30:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:56,503 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:30:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:56,663 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:30:56,663 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-05 15:30:56,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-05 15:30:56,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-05 15:30:56,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 15:30:56,698 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-04-05 15:30:56,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:30:56,870 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2018-04-05 15:30:56,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-05 15:30:56,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-04-05 15:30:56,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:30:56,900 INFO L225 Difference]: With dead ends: 77 [2018-04-05 15:30:56,900 INFO L226 Difference]: Without dead ends: 58 [2018-04-05 15:30:56,907 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 15:30:56,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-05 15:30:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-05 15:30:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-05 15:30:56,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-04-05 15:30:56,964 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 17 [2018-04-05 15:30:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:30:56,964 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-04-05 15:30:56,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-05 15:30:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-04-05 15:30:56,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 15:30:56,966 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:30:56,966 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] [2018-04-05 15:30:56,966 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:30:56,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1114326952, 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 [2018-04-05 15:30:56,992 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:30:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:30:57,093 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:30:57,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:30:57,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:30:57,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:30:57,264 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:30:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:57,308 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:30:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:57,456 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:30:57,456 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:30:57,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 15:30:57,458 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 15:30:57,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 15:30:57,465 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 4 states. [2018-04-05 15:30:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:30:57,718 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-04-05 15:30:57,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 15:30:57,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-05 15:30:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:30:57,720 INFO L225 Difference]: With dead ends: 58 [2018-04-05 15:30:57,721 INFO L226 Difference]: Without dead ends: 57 [2018-04-05 15:30:57,724 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 15:30:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-05 15:30:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-04-05 15:30:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-05 15:30:57,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-04-05 15:30:57,747 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 20 [2018-04-05 15:30:57,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:30:57,748 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-04-05 15:30:57,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 15:30:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-04-05 15:30:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 15:30:57,749 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:30:57,749 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] [2018-04-05 15:30:57,750 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:30:57,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1114326951, 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 [2018-04-05 15:30:57,781 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:30:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:30:57,825 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:30:57,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:30:57,911 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:30:57,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:30:57,981 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 15:30:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:58,190 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:30:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:58,462 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:30:58,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 15:30:58,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:30:58,463 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:30:58,463 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:30:58,464 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 7 states. [2018-04-05 15:30:58,911 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:30:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:30:59,074 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-04-05 15:30:59,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:30:59,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-05 15:30:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:30:59,076 INFO L225 Difference]: With dead ends: 57 [2018-04-05 15:30:59,076 INFO L226 Difference]: Without dead ends: 56 [2018-04-05 15:30:59,077 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:30:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-05 15:30:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-05 15:30:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-05 15:30:59,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2018-04-05 15:30:59,096 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 20 [2018-04-05 15:30:59,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:30:59,097 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2018-04-05 15:30:59,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:30:59,103 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-04-05 15:30:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-05 15:30:59,104 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:30:59,104 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] [2018-04-05 15:30:59,104 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:30:59,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1908229130, 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 [2018-04-05 15:30:59,136 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:30:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:30:59,204 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:30:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:59,499 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:30:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:30:59,614 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:30:59,614 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 15:30:59,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:30:59,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:30:59,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:30:59,616 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 7 states. [2018-04-05 15:31:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:00,461 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2018-04-05 15:31:00,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 15:31:00,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-04-05 15:31:00,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:00,475 INFO L225 Difference]: With dead ends: 56 [2018-04-05 15:31:00,475 INFO L226 Difference]: Without dead ends: 55 [2018-04-05 15:31:00,476 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:31:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-05 15:31:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-04-05 15:31:00,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-05 15:31:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2018-04-05 15:31:00,496 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 31 [2018-04-05 15:31:00,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:00,496 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2018-04-05 15:31:00,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:31:00,497 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-04-05 15:31:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-05 15:31:00,502 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:00,502 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] [2018-04-05 15:31:00,502 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:00,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1908229131, 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 [2018-04-05 15:31:00,525 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:00,627 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:01,141 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:01,186 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 [2018-04-05 15:31:01,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:01,248 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 [2018-04-05 15:31:01,249 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:01,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:31:01,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 15:31:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:01,433 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:01,433 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 15:31:01,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 15:31:01,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 15:31:01,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:31:01,434 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 10 states. [2018-04-05 15:31:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:02,506 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2018-04-05 15:31:02,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 15:31:02,507 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-04-05 15:31:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:02,508 INFO L225 Difference]: With dead ends: 62 [2018-04-05 15:31:02,508 INFO L226 Difference]: Without dead ends: 61 [2018-04-05 15:31:02,509 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-05 15:31:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-05 15:31:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-04-05 15:31:02,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-05 15:31:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2018-04-05 15:31:02,539 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 31 [2018-04-05 15:31:02,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:02,540 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2018-04-05 15:31:02,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 15:31:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-04-05 15:31:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-05 15:31:02,541 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:02,541 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] [2018-04-05 15:31:02,541 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:02,547 INFO L82 PathProgramCache]: Analyzing trace with hash -974439128, 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 [2018-04-05 15:31:02,573 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:02,659 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:02,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:02,693 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:02,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:02,699 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:31:02,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:31:02,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:02,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:02,773 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 15:31:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:03,056 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:03,341 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:03,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2018-04-05 15:31:03,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:31:03,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:31:03,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-04-05 15:31:03,342 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 12 states. [2018-04-05 15:31:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:04,322 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2018-04-05 15:31:04,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:31:04,324 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-04-05 15:31:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:04,325 INFO L225 Difference]: With dead ends: 61 [2018-04-05 15:31:04,325 INFO L226 Difference]: Without dead ends: 60 [2018-04-05 15:31:04,326 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:31:04,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-05 15:31:04,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-05 15:31:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-05 15:31:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2018-04-05 15:31:04,340 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 32 [2018-04-05 15:31:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:04,341 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2018-04-05 15:31:04,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:31:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2018-04-05 15:31:04,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-05 15:31:04,342 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:04,342 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] [2018-04-05 15:31:04,342 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:04,343 INFO L82 PathProgramCache]: Analyzing trace with hash -974439127, 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 [2018-04-05 15:31:04,370 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:04,455 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:04,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:04,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:04,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:04,718 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:04,745 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:04,745 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:31:04,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:04,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:31:04,862 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:04,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:04,921 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:04,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:31:04,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:04,954 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:04,954 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:31:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:05,296 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:06,091 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 [2018-04-05 15:31:06,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:06,118 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 [2018-04-05 15:31:06,197 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 [2018-04-05 15:31:06,197 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:06,203 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 15:31:06,203 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:06,228 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:06,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:06,247 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:21, output treesize:3 [2018-04-05 15:31:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:06,343 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:06,343 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-04-05 15:31:06,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:31:06,344 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:31:06,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:31:06,344 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 18 states. [2018-04-05 15:31:06,832 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 24 [2018-04-05 15:31:07,605 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 24 [2018-04-05 15:31:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:08,836 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-04-05 15:31:08,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 15:31:08,838 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2018-04-05 15:31:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:08,839 INFO L225 Difference]: With dead ends: 65 [2018-04-05 15:31:08,839 INFO L226 Difference]: Without dead ends: 64 [2018-04-05 15:31:08,840 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:31:08,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-05 15:31:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2018-04-05 15:31:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-05 15:31:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2018-04-05 15:31:08,854 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 32 [2018-04-05 15:31:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:08,855 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2018-04-05 15:31:08,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:31:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-04-05 15:31:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-05 15:31:08,857 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:08,861 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] [2018-04-05 15:31:08,861 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1552777265, 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 [2018-04-05 15:31:08,887 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:08,966 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:09,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:31:09,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:31:09,057 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:09,083 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:09,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:31:09,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 15:31:09,545 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 20 treesize of output 16 [2018-04-05 15:31:09,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-05 15:31:09,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:31:09,612 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:31:09,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:31:09,676 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-05 15:31:09,864 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 15:31:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:10,089 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:11,160 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 [2018-04-05 15:31:11,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:11,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:31:11,278 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 [2018-04-05 15:31:11,278 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:11,286 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:11,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:11,323 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 15:31:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:11,412 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:31:11,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-05 15:31:11,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-05 15:31:11,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-05 15:31:11,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-04-05 15:31:11,414 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 21 states. [2018-04-05 15:31:12,446 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 59 DAG size of output 56 [2018-04-05 15:31:12,919 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 58 DAG size of output 53 [2018-04-05 15:31:13,408 WARN L151 SmtUtils]: Spent 294ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 15:31:13,676 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 15:31:13,937 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 27 DAG size of output 26 [2018-04-05 15:31:14,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:14,632 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2018-04-05 15:31:14,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-05 15:31:14,633 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 42 [2018-04-05 15:31:14,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:14,634 INFO L225 Difference]: With dead ends: 84 [2018-04-05 15:31:14,635 INFO L226 Difference]: Without dead ends: 83 [2018-04-05 15:31:14,635 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=164, Invalid=892, Unknown=0, NotChecked=0, Total=1056 [2018-04-05 15:31:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-05 15:31:14,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 71. [2018-04-05 15:31:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-05 15:31:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2018-04-05 15:31:14,682 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 42 [2018-04-05 15:31:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:14,682 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2018-04-05 15:31:14,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-05 15:31:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2018-04-05 15:31:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-05 15:31:14,684 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:14,684 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:31:14,684 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:14,684 INFO L82 PathProgramCache]: Analyzing trace with hash -891455003, 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 [2018-04-05 15:31:14,712 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:14,781 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:14,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:14,858 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:14,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:14,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:14,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:14,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:31:15,066 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:15,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:31:15,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:15,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:15,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:15,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:31:15,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:15,169 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:15,169 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 15:31:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:16,930 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:20,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-04-05 15:31:20,722 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:20,759 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 [2018-04-05 15:31:20,811 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 15:31:20,811 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:20,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 15:31:20,815 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:20,841 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:20,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:20,868 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 15:31:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:21,118 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:31:21,118 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-04-05 15:31:21,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-05 15:31:21,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-05 15:31:21,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1449, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 15:31:21,120 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 40 states. [2018-04-05 15:31:23,387 WARN L148 SmtUtils]: Spent 213ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:31:24,936 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 24 [2018-04-05 15:31:25,925 WARN L148 SmtUtils]: Spent 200ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:31:26,383 WARN L151 SmtUtils]: Spent 284ms on a formula simplification. DAG size of input: 52 DAG size of output 48 [2018-04-05 15:31:26,946 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:31:27,262 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:31:27,583 WARN L148 SmtUtils]: Spent 167ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:31:28,919 WARN L151 SmtUtils]: Spent 1062ms on a formula simplification. DAG size of input: 53 DAG size of output 51 [2018-04-05 15:31:29,585 WARN L151 SmtUtils]: Spent 532ms on a formula simplification. DAG size of input: 48 DAG size of output 46 [2018-04-05 15:31:30,337 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:31:30,991 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:31:31,917 WARN L148 SmtUtils]: Spent 194ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:31:32,186 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 15:31:32,813 WARN L148 SmtUtils]: Spent 469ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:31:33,921 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 15:31:34,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:34,036 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-04-05 15:31:34,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-05 15:31:34,037 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 43 [2018-04-05 15:31:34,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:34,042 INFO L225 Difference]: With dead ends: 85 [2018-04-05 15:31:34,042 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:31:34,044 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=494, Invalid=4062, Unknown=0, NotChecked=0, Total=4556 [2018-04-05 15:31:34,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:31:34,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 72. [2018-04-05 15:31:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-05 15:31:34,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2018-04-05 15:31:34,070 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 43 [2018-04-05 15:31:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:34,071 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2018-04-05 15:31:34,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-05 15:31:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2018-04-05 15:31:34,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-05 15:31:34,076 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:34,076 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] [2018-04-05 15:31:34,076 INFO L408 AbstractCegarLoop]: === Iteration 10 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:34,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1432555166, 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 [2018-04-05 15:31:34,106 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:34,162 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:34,364 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:34,365 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 [2018-04-05 15:31:34,386 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 [2018-04-05 15:31:34,387 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:34,421 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:34,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:31:34,456 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:31:34,597 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:34,605 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:34,621 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:34,750 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (= (store (store (store |c_#valid| |v_main_#t~malloc8.base_13| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_13| 0) |c_old(#valid)|))) is different from false [2018-04-05 15:31:34,761 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_12| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_12| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_13| 1) |v_main_#t~malloc7.base_12| 0) |v_main_#t~malloc8.base_13| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_12|))) (not (= (select .cse0 |v_main_#t~malloc8.base_13|) 0))))) is different from false [2018-04-05 15:31:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:34,840 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:34,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:31:34,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:31:34,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:31:34,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:31:34,841 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand 12 states. [2018-04-05 15:31:34,882 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc7.base_12| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_12| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_13| 1) |v_main_#t~malloc7.base_12| 0) |v_main_#t~malloc8.base_13| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_12|))) (not (= (select .cse0 |v_main_#t~malloc8.base_13|) 0)))))) is different from false [2018-04-05 15:31:35,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:35,806 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2018-04-05 15:31:35,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:31:35,807 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2018-04-05 15:31:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:35,808 INFO L225 Difference]: With dead ends: 129 [2018-04-05 15:31:35,809 INFO L226 Difference]: Without dead ends: 115 [2018-04-05 15:31:35,809 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:31:35,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-04-05 15:31:35,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2018-04-05 15:31:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-04-05 15:31:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 119 transitions. [2018-04-05 15:31:35,871 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 119 transitions. Word has length 46 [2018-04-05 15:31:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:35,875 INFO L459 AbstractCegarLoop]: Abstraction has 113 states and 119 transitions. [2018-04-05 15:31:35,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:31:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 119 transitions. [2018-04-05 15:31:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 15:31:35,877 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:35,877 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] [2018-04-05 15:31:35,877 INFO L408 AbstractCegarLoop]: === Iteration 11 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:35,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1000871976, 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 [2018-04-05 15:31:35,895 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:35,958 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:36,101 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:36,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 15:31:36,113 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:36,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 15:31:36,115 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:36,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:36,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:31:36,171 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:31:36,275 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:36,287 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:36,315 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:36,425 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_15| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|))) (= (store (store (store |c_#valid| |v_main_#t~malloc8.base_15| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_15| 0) |c_old(#valid)|))) is different from false [2018-04-05 15:31:36,437 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_14| Int) (|v_main_#t~malloc8.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_14| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_15| 1) |v_main_#t~malloc7.base_14| 0) |v_main_#t~malloc8.base_15| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc8.base_15|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_14|)))))) is different from false [2018-04-05 15:31:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:36,528 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:36,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:31:36,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:31:36,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:31:36,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:31:36,529 INFO L87 Difference]: Start difference. First operand 113 states and 119 transitions. Second operand 12 states. [2018-04-05 15:31:36,577 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc7.base_14| Int) (|v_main_#t~malloc8.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_14| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_15| 1) |v_main_#t~malloc7.base_14| 0) |v_main_#t~malloc8.base_15| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc8.base_15|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_14|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 15:31:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:37,658 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2018-04-05 15:31:37,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:31:37,659 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-04-05 15:31:37,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:37,660 INFO L225 Difference]: With dead ends: 169 [2018-04-05 15:31:37,661 INFO L226 Difference]: Without dead ends: 155 [2018-04-05 15:31:37,661 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:31:37,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-04-05 15:31:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 112. [2018-04-05 15:31:37,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-05 15:31:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 117 transitions. [2018-04-05 15:31:37,690 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 117 transitions. Word has length 47 [2018-04-05 15:31:37,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:37,690 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 117 transitions. [2018-04-05 15:31:37,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:31:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 117 transitions. [2018-04-05 15:31:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 15:31:37,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:37,697 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] [2018-04-05 15:31:37,697 INFO L408 AbstractCegarLoop]: === Iteration 12 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:37,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1810974675, 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 [2018-04-05 15:31:37,726 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:37,769 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:38,082 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:38,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-05 15:31:38,093 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 [2018-04-05 15:31:38,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:38,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:38,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:31:38,170 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:31:38,299 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:38,310 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:38,328 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:38,438 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_17| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc8.base_17| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_17| 0)))) is different from false [2018-04-05 15:31:38,446 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_16| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_16| 1))) (or (not (= (select .cse0 |v_main_#t~malloc8.base_17|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_17| 1) |v_main_#t~malloc7.base_16| 0) |v_main_#t~malloc8.base_17| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_16|)))))) is different from false [2018-04-05 15:31:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:38,550 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:38,551 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:31:38,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:31:38,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:31:38,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:31:38,552 INFO L87 Difference]: Start difference. First operand 112 states and 117 transitions. Second operand 12 states. [2018-04-05 15:31:38,601 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc7.base_16| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_16| 1))) (or (not (= (select .cse0 |v_main_#t~malloc8.base_17|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_17| 1) |v_main_#t~malloc7.base_16| 0) |v_main_#t~malloc8.base_17| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_16|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 15:31:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:39,982 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2018-04-05 15:31:39,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:31:39,983 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-04-05 15:31:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:39,984 INFO L225 Difference]: With dead ends: 170 [2018-04-05 15:31:39,985 INFO L226 Difference]: Without dead ends: 156 [2018-04-05 15:31:39,985 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:31:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-04-05 15:31:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 114. [2018-04-05 15:31:40,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-04-05 15:31:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 120 transitions. [2018-04-05 15:31:40,019 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 120 transitions. Word has length 47 [2018-04-05 15:31:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:40,019 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 120 transitions. [2018-04-05 15:31:40,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:31:40,020 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 120 transitions. [2018-04-05 15:31:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-05 15:31:40,026 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:40,026 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] [2018-04-05 15:31:40,026 INFO L408 AbstractCegarLoop]: === Iteration 13 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:40,026 INFO L82 PathProgramCache]: Analyzing trace with hash -610822695, 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 [2018-04-05 15:31:40,049 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:40,096 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:40,307 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:40,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 15:31:40,324 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:40,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 15:31:40,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:40,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:40,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:31:40,391 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:31:40,522 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:40,529 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 15:31:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:40,544 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:40,660 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_19| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc8.base_19| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_19| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|))))) is different from false [2018-04-05 15:31:40,668 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_18| Int) (|v_main_#t~malloc8.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_18| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_18|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_19| 1) |v_main_#t~malloc7.base_18| 0) |v_main_#t~malloc8.base_19| 0)) (not (= (select .cse0 |v_main_#t~malloc8.base_19|) 0))))) is different from false [2018-04-05 15:31:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:40,769 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:31:40,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:31:40,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:31:40,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:31:40,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:31:40,796 INFO L87 Difference]: Start difference. First operand 114 states and 120 transitions. Second operand 12 states. [2018-04-05 15:31:40,860 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc7.base_18| Int) (|v_main_#t~malloc8.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_18| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_18|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_19| 1) |v_main_#t~malloc7.base_18| 0) |v_main_#t~malloc8.base_19| 0)) (not (= (select .cse0 |v_main_#t~malloc8.base_19|) 0)))))) is different from false [2018-04-05 15:31:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:31:43,030 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2018-04-05 15:31:43,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:31:43,031 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-04-05 15:31:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:31:43,032 INFO L225 Difference]: With dead ends: 116 [2018-04-05 15:31:43,032 INFO L226 Difference]: Without dead ends: 102 [2018-04-05 15:31:43,033 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:31:43,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-04-05 15:31:43,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 58. [2018-04-05 15:31:43,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-05 15:31:43,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-04-05 15:31:43,053 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 48 [2018-04-05 15:31:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:31:43,053 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-04-05 15:31:43,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:31:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-04-05 15:31:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 15:31:43,063 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:31:43,064 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] [2018-04-05 15:31:43,064 INFO L408 AbstractCegarLoop]: === Iteration 14 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:31:43,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1816329845, 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 [2018-04-05 15:31:43,082 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:31:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:31:43,113 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:31:43,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:43,124 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,131 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:31:43,177 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:43,183 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:31:43,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:31:43,184 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:31:43,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,242 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 15:31:43,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 15:31:43,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:31:43,376 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,381 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:43,398 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 15:31:44,886 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 [2018-04-05 15:31:44,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:31:44,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:44,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:44,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:44,955 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 15:31:45,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 15:31:45,534 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 [2018-04-05 15:31:45,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:31:45,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:31:45,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:31:45,669 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 15:31:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:46,252 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:31:50,028 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 37 treesize of output 28 [2018-04-05 15:31:50,144 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:31:50,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:31:50,152 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:50,232 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 19 treesize of output 15 [2018-04-05 15:31:50,236 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 [2018-04-05 15:31:50,237 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:50,244 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:50,250 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 20 treesize of output 18 [2018-04-05 15:31:50,255 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 [2018-04-05 15:31:50,256 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 15:31:50,277 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:31:50,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:31:50,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:31:50,585 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-05 15:31:51,262 WARN L151 SmtUtils]: Spent 411ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 15:31:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:31:52,018 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:31:52,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-04-05 15:31:52,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-05 15:31:52,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-05 15:31:52,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2018-04-05 15:31:52,020 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 42 states. [2018-04-05 15:31:53,230 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:31:54,444 WARN L148 SmtUtils]: Spent 192ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:31:56,044 WARN L148 SmtUtils]: Spent 512ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:31:56,586 WARN L151 SmtUtils]: Spent 346ms on a formula simplification. DAG size of input: 82 DAG size of output 65 [2018-04-05 15:31:57,084 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:31:57,419 WARN L151 SmtUtils]: Spent 178ms on a formula simplification. DAG size of input: 59 DAG size of output 49 [2018-04-05 15:31:57,970 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 30 DAG size of output 27 [2018-04-05 15:31:58,444 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 15:31:59,286 WARN L151 SmtUtils]: Spent 203ms on a formula simplification. DAG size of input: 32 DAG size of output 29 [2018-04-05 15:32:00,302 WARN L151 SmtUtils]: Spent 504ms on a formula simplification. DAG size of input: 38 DAG size of output 33 [2018-04-05 15:32:01,290 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 28 DAG size of output 25 [2018-04-05 15:32:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:32:02,428 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2018-04-05 15:32:02,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-05 15:32:02,429 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 53 [2018-04-05 15:32:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:32:02,430 INFO L225 Difference]: With dead ends: 75 [2018-04-05 15:32:02,430 INFO L226 Difference]: Without dead ends: 74 [2018-04-05 15:32:02,431 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=364, Invalid=3418, Unknown=0, NotChecked=0, Total=3782 [2018-04-05 15:32:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-05 15:32:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2018-04-05 15:32:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-05 15:32:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2018-04-05 15:32:02,442 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 53 [2018-04-05 15:32:02,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:32:02,444 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2018-04-05 15:32:02,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-05 15:32:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2018-04-05 15:32:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 15:32:02,445 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:32:02,445 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] [2018-04-05 15:32:02,445 INFO L408 AbstractCegarLoop]: === Iteration 15 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:32:02,445 INFO L82 PathProgramCache]: Analyzing trace with hash -471650391, now seen corresponding path program 2 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 [2018-04-05 15:32:02,470 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:32:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:32:02,528 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:32:02,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:32:02,561 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:02,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:32:02,595 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:02,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:02,628 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:32:02,727 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:02,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:32:02,730 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:02,783 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:02,790 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:02,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:32:02,791 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:02,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:02,822 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 15:32:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:32:05,180 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:32:11,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-04-05 15:32:11,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:11,226 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 [2018-04-05 15:32:11,460 WARN L148 SmtUtils]: Spent 233ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:32:11,501 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 15:32:11,501 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:11,543 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 [2018-04-05 15:32:11,544 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:11,715 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:11,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:11,807 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 15:32:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:32:12,371 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:32:12,371 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2018-04-05 15:32:12,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-05 15:32:12,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-05 15:32:12,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2115, Unknown=0, NotChecked=0, Total=2256 [2018-04-05 15:32:12,373 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 48 states. [2018-04-05 15:32:15,898 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:32:16,397 WARN L151 SmtUtils]: Spent 295ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 15:32:16,993 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:32:17,313 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:32:17,623 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:32:18,023 WARN L151 SmtUtils]: Spent 238ms on a formula simplification. DAG size of input: 53 DAG size of output 51 [2018-04-05 15:32:18,413 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 50 DAG size of output 47 [2018-04-05 15:32:18,653 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:32:18,962 WARN L148 SmtUtils]: Spent 140ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:32:19,275 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:32:19,802 WARN L151 SmtUtils]: Spent 300ms on a formula simplification. DAG size of input: 60 DAG size of output 58 [2018-04-05 15:32:20,164 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 15:32:20,471 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:32:20,812 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:32:21,709 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 15:32:22,134 WARN L148 SmtUtils]: Spent 171ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 15:32:22,660 WARN L148 SmtUtils]: Spent 328ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 15:32:23,173 WARN L148 SmtUtils]: Spent 247ms on a formula simplification that was a NOOP. DAG size: 62 [2018-04-05 15:32:23,663 WARN L148 SmtUtils]: Spent 168ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:32:23,964 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:32:24,277 WARN L148 SmtUtils]: Spent 146ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:32:24,809 WARN L148 SmtUtils]: Spent 134ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:32:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:32:25,225 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2018-04-05 15:32:25,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-05 15:32:25,226 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 54 [2018-04-05 15:32:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:32:25,227 INFO L225 Difference]: With dead ends: 85 [2018-04-05 15:32:25,227 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:32:25,229 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=767, Invalid=6373, Unknown=0, NotChecked=0, Total=7140 [2018-04-05 15:32:25,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:32:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2018-04-05 15:32:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-05 15:32:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2018-04-05 15:32:25,256 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 54 [2018-04-05 15:32:25,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:32:25,257 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2018-04-05 15:32:25,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-05 15:32:25,257 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2018-04-05 15:32:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-05 15:32:25,258 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:32:25,258 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] [2018-04-05 15:32:25,258 INFO L408 AbstractCegarLoop]: === Iteration 16 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:32:25,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1677897137, now seen corresponding path program 3 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 [2018-04-05 15:32:25,271 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:32:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:32:25,343 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:32:25,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:32:25,349 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,356 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:32:25,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:25,410 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:25,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:32:25,411 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:32:25,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,459 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 15:32:25,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 15:32:25,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:32:25,581 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:25,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 15:32:26,458 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 [2018-04-05 15:32:26,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:32:26,463 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:26,484 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:26,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:26,519 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-04-05 15:32:27,061 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 [2018-04-05 15:32:27,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:32:27,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:27,140 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:27,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:27,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 15:32:27,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 15:32:27,577 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 [2018-04-05 15:32:27,578 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:32:27,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:32:27,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:32:27,646 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 15:32:27,959 WARN L148 SmtUtils]: Spent 225ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 15:32:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:32:28,375 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:32:33,739 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 42 treesize of output 33 [2018-04-05 15:32:33,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:32:33,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:33,860 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 31 treesize of output 27 [2018-04-05 15:32:33,927 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 23 treesize of output 34 [2018-04-05 15:32:34,049 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:32:34,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2018-04-05 15:32:34,087 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-05 15:32:34,118 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 27 treesize of output 30 [2018-04-05 15:32:34,119 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-05 15:32:34,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-05 15:32:34,123 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:34,362 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 25 treesize of output 21 [2018-04-05 15:32:34,363 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-05 15:32:34,434 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 28 treesize of output 38 [2018-04-05 15:32:34,435 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2018-04-05 15:32:34,607 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:32:34,738 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:32:34,770 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 36 treesize of output 38 [2018-04-05 15:32:34,868 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 30 treesize of output 60 [2018-04-05 15:32:35,326 WARN L151 SmtUtils]: Spent 455ms on a formula simplification. DAG size of input: 65 DAG size of output 55 [2018-04-05 15:32:35,333 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 15:32:35,340 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 32 treesize of output 27 [2018-04-05 15:32:35,340 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:35,344 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 15:32:35,351 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 34 treesize of output 29 [2018-04-05 15:32:35,352 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:35,712 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 34 treesize of output 21 [2018-04-05 15:32:35,712 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:35,719 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 15:32:35,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2018-04-05 15:32:35,725 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:36,085 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 28 treesize of output 38 [2018-04-05 15:32:36,086 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 3 xjuncts. [2018-04-05 15:32:36,159 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 26 treesize of output 36 [2018-04-05 15:32:36,161 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 3 xjuncts. [2018-04-05 15:32:36,762 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 15:32:37,468 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 15:32:37,530 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 24 treesize of output 20 [2018-04-05 15:32:37,591 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 [2018-04-05 15:32:37,592 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:37,761 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:38,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-05 15:32:38,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:32:38,843 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:60, output treesize:84 [2018-04-05 15:32:39,548 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 15:32:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:32:40,309 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:32:40,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-04-05 15:32:40,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 15:32:40,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 15:32:40,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2474, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 15:32:40,311 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 52 states. [2018-04-05 15:32:42,905 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:32:43,856 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 87 DAG size of output 70 [2018-04-05 15:32:44,203 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:32:44,670 WARN L151 SmtUtils]: Spent 294ms on a formula simplification. DAG size of input: 87 DAG size of output 53 [2018-04-05 15:32:45,061 WARN L151 SmtUtils]: Spent 188ms on a formula simplification. DAG size of input: 76 DAG size of output 42 [2018-04-05 15:32:45,385 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 44 DAG size of output 41 [2018-04-05 15:32:46,325 WARN L151 SmtUtils]: Spent 220ms on a formula simplification. DAG size of input: 49 DAG size of output 47 [2018-04-05 15:32:47,226 WARN L151 SmtUtils]: Spent 686ms on a formula simplification. DAG size of input: 52 DAG size of output 47 [2018-04-05 15:32:47,715 WARN L151 SmtUtils]: Spent 321ms on a formula simplification. DAG size of input: 57 DAG size of output 52 [2018-04-05 15:32:48,136 WARN L151 SmtUtils]: Spent 218ms on a formula simplification. DAG size of input: 49 DAG size of output 44 [2018-04-05 15:32:48,531 WARN L151 SmtUtils]: Spent 243ms on a formula simplification. DAG size of input: 48 DAG size of output 43 [2018-04-05 15:32:48,796 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 33 DAG size of output 31 [2018-04-05 15:32:49,140 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 15:32:49,670 WARN L151 SmtUtils]: Spent 277ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 15:32:50,022 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 48 DAG size of output 38 [2018-04-05 15:32:50,458 WARN L151 SmtUtils]: Spent 309ms on a formula simplification. DAG size of input: 58 DAG size of output 45 [2018-04-05 15:32:51,099 WARN L151 SmtUtils]: Spent 353ms on a formula simplification. DAG size of input: 53 DAG size of output 40 [2018-04-05 15:32:51,474 WARN L151 SmtUtils]: Spent 202ms on a formula simplification. DAG size of input: 47 DAG size of output 38 [2018-04-05 15:32:51,845 WARN L151 SmtUtils]: Spent 220ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 15:32:52,209 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-04-05 15:32:52,741 WARN L151 SmtUtils]: Spent 305ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-05 15:32:53,087 WARN L151 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 51 DAG size of output 40 [2018-04-05 15:32:53,625 WARN L151 SmtUtils]: Spent 382ms on a formula simplification. DAG size of input: 60 DAG size of output 44 [2018-04-05 15:32:54,146 WARN L151 SmtUtils]: Spent 306ms on a formula simplification. DAG size of input: 55 DAG size of output 39 [2018-04-05 15:32:54,597 WARN L151 SmtUtils]: Spent 242ms on a formula simplification. DAG size of input: 49 DAG size of output 37 [2018-04-05 15:32:54,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:32:54,660 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2018-04-05 15:32:54,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-05 15:32:54,661 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 64 [2018-04-05 15:32:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:32:54,662 INFO L225 Difference]: With dead ends: 80 [2018-04-05 15:32:54,662 INFO L226 Difference]: Without dead ends: 79 [2018-04-05 15:32:54,664 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=1134, Invalid=6348, Unknown=0, NotChecked=0, Total=7482 [2018-04-05 15:32:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-05 15:32:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-04-05 15:32:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-05 15:32:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2018-04-05 15:32:54,689 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 64 [2018-04-05 15:32:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:32:54,689 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2018-04-05 15:32:54,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 15:32:54,689 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-04-05 15:32:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-05 15:32:54,690 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:32:54,690 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] [2018-04-05 15:32:54,691 INFO L408 AbstractCegarLoop]: === Iteration 17 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:32:54,691 INFO L82 PathProgramCache]: Analyzing trace with hash 440812073, now seen corresponding path program 3 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 [2018-04-05 15:32:54,730 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:32:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:32:54,786 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:32:54,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:32:54,812 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:54,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:32:54,855 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:54,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:54,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:32:54,984 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:54,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:32:54,993 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:55,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:55,086 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:32:55,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:32:55,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:32:55,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:32:55,138 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 15:32:56,168 WARN L148 SmtUtils]: Spent 200ms on a formula simplification that was a NOOP. DAG size: 12 [2018-04-05 15:32:56,701 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 15:32:57,210 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-05 15:32:58,004 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:33:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:33:00,766 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:33:10,806 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 21 DAG size of output 18 [2018-04-05 15:33:10,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-05 15:33:10,860 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:11,017 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 [2018-04-05 15:33:11,255 WARN L148 SmtUtils]: Spent 237ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:33:11,262 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 [2018-04-05 15:33:11,263 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:11,265 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 15:33:11,265 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:11,295 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:33:11,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:33:11,320 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 15:33:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:33:12,098 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:33:12,099 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2018-04-05 15:33:12,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-05 15:33:12,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-05 15:33:12,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=3801, Unknown=0, NotChecked=0, Total=4032 [2018-04-05 15:33:12,101 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 64 states. [2018-04-05 15:33:13,161 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:33:15,008 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 22 [2018-04-05 15:33:15,686 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 15:33:16,400 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:33:17,983 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 15:33:18,523 WARN L148 SmtUtils]: Spent 157ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:33:19,770 WARN L151 SmtUtils]: Spent 578ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 15:33:20,365 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 15:33:20,967 WARN L148 SmtUtils]: Spent 134ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:33:21,627 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:33:22,122 WARN L148 SmtUtils]: Spent 164ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:33:23,295 WARN L151 SmtUtils]: Spent 905ms on a formula simplification. DAG size of input: 53 DAG size of output 51 [2018-04-05 15:33:23,821 WARN L151 SmtUtils]: Spent 306ms on a formula simplification. DAG size of input: 51 DAG size of output 47 [2018-04-05 15:33:24,162 WARN L148 SmtUtils]: Spent 163ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:33:24,646 WARN L148 SmtUtils]: Spent 141ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:25,243 WARN L148 SmtUtils]: Spent 203ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:33:26,086 WARN L151 SmtUtils]: Spent 529ms on a formula simplification. DAG size of input: 60 DAG size of output 58 [2018-04-05 15:33:26,769 WARN L148 SmtUtils]: Spent 235ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 15:33:27,347 WARN L148 SmtUtils]: Spent 286ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:33:27,998 WARN L148 SmtUtils]: Spent 219ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:28,546 WARN L148 SmtUtils]: Spent 193ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:33:29,343 WARN L148 SmtUtils]: Spent 511ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:30,047 WARN L148 SmtUtils]: Spent 259ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:33:31,070 WARN L151 SmtUtils]: Spent 587ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:33:31,674 WARN L148 SmtUtils]: Spent 239ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:33:32,162 WARN L148 SmtUtils]: Spent 169ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:33:32,675 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:33,010 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:33:33,440 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:34,005 WARN L148 SmtUtils]: Spent 168ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:33:35,011 WARN L151 SmtUtils]: Spent 610ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:33:35,685 WARN L148 SmtUtils]: Spent 272ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:33:36,139 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:33:36,694 WARN L148 SmtUtils]: Spent 154ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:37,211 WARN L148 SmtUtils]: Spent 192ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:33:37,744 WARN L148 SmtUtils]: Spent 155ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:38,663 WARN L151 SmtUtils]: Spent 490ms on a formula simplification. DAG size of input: 64 DAG size of output 60 [2018-04-05 15:33:39,313 WARN L148 SmtUtils]: Spent 287ms on a formula simplification that was a NOOP. DAG size: 80 [2018-04-05 15:33:40,164 WARN L148 SmtUtils]: Spent 547ms on a formula simplification that was a NOOP. DAG size: 80 [2018-04-05 15:33:41,484 WARN L148 SmtUtils]: Spent 912ms on a formula simplification that was a NOOP. DAG size: 84 [2018-04-05 15:33:42,051 WARN L148 SmtUtils]: Spent 221ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-05 15:33:42,643 WARN L151 SmtUtils]: Spent 385ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 15:33:43,304 WARN L151 SmtUtils]: Spent 479ms on a formula simplification. DAG size of input: 72 DAG size of output 64 [2018-04-05 15:33:44,518 WARN L151 SmtUtils]: Spent 916ms on a formula simplification. DAG size of input: 67 DAG size of output 61 [2018-04-05 15:33:45,716 WARN L151 SmtUtils]: Spent 926ms on a formula simplification. DAG size of input: 79 DAG size of output 75 [2018-04-05 15:33:46,216 WARN L148 SmtUtils]: Spent 263ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-05 15:33:46,591 WARN L148 SmtUtils]: Spent 179ms on a formula simplification that was a NOOP. DAG size: 62 [2018-04-05 15:33:46,968 WARN L148 SmtUtils]: Spent 181ms on a formula simplification that was a NOOP. DAG size: 56 [2018-04-05 15:33:47,482 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 46 DAG size of output 44 [2018-04-05 15:33:48,261 WARN L151 SmtUtils]: Spent 488ms on a formula simplification. DAG size of input: 59 DAG size of output 55 [2018-04-05 15:33:48,821 WARN L151 SmtUtils]: Spent 275ms on a formula simplification. DAG size of input: 54 DAG size of output 52 [2018-04-05 15:33:49,475 WARN L151 SmtUtils]: Spent 421ms on a formula simplification. DAG size of input: 63 DAG size of output 61 [2018-04-05 15:33:49,892 WARN L148 SmtUtils]: Spent 189ms on a formula simplification that was a NOOP. DAG size: 56 [2018-04-05 15:33:50,193 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:33:50,504 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:33:51,134 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:33:51,493 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:33:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:33:52,228 INFO L93 Difference]: Finished difference Result 127 states and 132 transitions. [2018-04-05 15:33:52,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-04-05 15:33:52,228 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 76 [2018-04-05 15:33:52,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:33:52,230 INFO L225 Difference]: With dead ends: 127 [2018-04-05 15:33:52,230 INFO L226 Difference]: Without dead ends: 126 [2018-04-05 15:33:52,241 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2969 ImplicationChecksByTransitivity, 48.3s TimeCoverageRelationStatistics Valid=1770, Invalid=14742, Unknown=0, NotChecked=0, Total=16512 [2018-04-05 15:33:52,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-04-05 15:33:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2018-04-05 15:33:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-05 15:33:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions. [2018-04-05 15:33:52,274 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 76 [2018-04-05 15:33:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:33:52,277 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 125 transitions. [2018-04-05 15:33:52,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-05 15:33:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions. [2018-04-05 15:33:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-04-05 15:33:52,279 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:33:52,279 INFO L355 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:33:52,279 INFO L408 AbstractCegarLoop]: === Iteration 18 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:33:52,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1242708183, now seen corresponding path program 4 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 [2018-04-05 15:33:52,302 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:33:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:33:52,390 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:33:52,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:33:52,406 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:52,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:33:52,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:52,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:33:52,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:33:52,565 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:33:52,572 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:33:52,573 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:52,619 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:33:52,626 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:33:52,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:33:52,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:33:52,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:33:52,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 15:33:53,059 WARN L148 SmtUtils]: Spent 144ms on a formula simplification that was a NOOP. DAG size: 12 [2018-04-05 15:33:57,109 WARN L148 SmtUtils]: Spent 209ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 15:34:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:34:02,079 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:34:21,441 WARN L148 SmtUtils]: Spent 152ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 15:34:24,388 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 [2018-04-05 15:34:24,389 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:34:24,415 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 [2018-04-05 15:34:24,477 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 [2018-04-05 15:34:24,478 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:34:24,481 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 15:34:24,481 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:34:24,516 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:34:24,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:34:24,542 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 15:34:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:34:25,214 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:34:25,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2018-04-05 15:34:25,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-04-05 15:34:25,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-04-05 15:34:25,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=8589, Unknown=0, NotChecked=0, Total=9120 [2018-04-05 15:34:25,228 INFO L87 Difference]: Start difference. First operand 123 states and 125 transitions. Second operand 96 states. [2018-04-05 15:34:25,820 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:34:30,482 WARN L148 SmtUtils]: Spent 422ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:34:31,505 WARN L148 SmtUtils]: Spent 213ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-05 15:34:32,649 WARN L148 SmtUtils]: Spent 142ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 15:34:33,744 WARN L148 SmtUtils]: Spent 210ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:34:34,657 WARN L151 SmtUtils]: Spent 379ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 15:34:36,475 WARN L148 SmtUtils]: Spent 233ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:34:37,112 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:34:37,668 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:34:38,514 WARN L151 SmtUtils]: Spent 430ms on a formula simplification. DAG size of input: 53 DAG size of output 51 [2018-04-05 15:34:39,905 WARN L151 SmtUtils]: Spent 976ms on a formula simplification. DAG size of input: 51 DAG size of output 47 [2018-04-05 15:34:41,706 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:42,738 WARN L148 SmtUtils]: Spent 281ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:34:43,686 WARN L151 SmtUtils]: Spent 538ms on a formula simplification. DAG size of input: 60 DAG size of output 58 [2018-04-05 15:34:44,376 WARN L148 SmtUtils]: Spent 188ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 15:34:44,813 WARN L148 SmtUtils]: Spent 133ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:34:45,312 WARN L148 SmtUtils]: Spent 137ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:45,690 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:34:46,119 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:46,700 WARN L148 SmtUtils]: Spent 126ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:34:47,405 WARN L151 SmtUtils]: Spent 333ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:34:48,108 WARN L148 SmtUtils]: Spent 302ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:34:48,773 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:34:49,834 WARN L148 SmtUtils]: Spent 213ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:50,572 WARN L148 SmtUtils]: Spent 210ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:34:51,379 WARN L148 SmtUtils]: Spent 227ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:52,627 WARN L148 SmtUtils]: Spent 361ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:34:53,971 WARN L151 SmtUtils]: Spent 368ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:34:54,559 WARN L148 SmtUtils]: Spent 191ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:34:55,073 WARN L148 SmtUtils]: Spent 147ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:34:55,526 WARN L148 SmtUtils]: Spent 113ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:56,327 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:34:56,833 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:34:57,528 WARN L151 SmtUtils]: Spent 344ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:34:58,243 WARN L148 SmtUtils]: Spent 207ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:34:58,694 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:34:59,195 WARN L148 SmtUtils]: Spent 158ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:00,324 WARN L148 SmtUtils]: Spent 191ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:01,109 WARN L148 SmtUtils]: Spent 220ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:35:02,284 WARN L151 SmtUtils]: Spent 399ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:35:02,896 WARN L148 SmtUtils]: Spent 167ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:35:03,382 WARN L148 SmtUtils]: Spent 159ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:35:03,914 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:04,310 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:35:04,885 WARN L148 SmtUtils]: Spent 151ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:06,650 WARN L148 SmtUtils]: Spent 764ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:35:07,422 WARN L151 SmtUtils]: Spent 380ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:35:08,111 WARN L148 SmtUtils]: Spent 220ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:35:08,627 WARN L148 SmtUtils]: Spent 177ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:35:09,329 WARN L148 SmtUtils]: Spent 217ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:09,754 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:35:10,225 WARN L148 SmtUtils]: Spent 142ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:10,961 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:35:11,795 WARN L151 SmtUtils]: Spent 416ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 15:35:12,640 WARN L148 SmtUtils]: Spent 375ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 15:35:13,094 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:35:14,191 WARN L148 SmtUtils]: Spent 250ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:14,625 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:35:15,239 WARN L148 SmtUtils]: Spent 188ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:35:16,436 WARN L151 SmtUtils]: Spent 698ms on a formula simplification. DAG size of input: 96 DAG size of output 84 [2018-04-05 15:35:17,780 WARN L148 SmtUtils]: Spent 774ms on a formula simplification that was a NOOP. DAG size: 124 [2018-04-05 15:35:19,032 WARN L148 SmtUtils]: Spent 711ms on a formula simplification that was a NOOP. DAG size: 124 [2018-04-05 15:35:21,189 WARN L148 SmtUtils]: Spent 796ms on a formula simplification that was a NOOP. DAG size: 128 [2018-04-05 15:35:23,067 WARN L148 SmtUtils]: Spent 1146ms on a formula simplification that was a NOOP. DAG size: 111 [2018-04-05 15:35:23,995 WARN L151 SmtUtils]: Spent 484ms on a formula simplification. DAG size of input: 86 DAG size of output 74 [2018-04-05 15:35:26,245 WARN L151 SmtUtils]: Spent 1859ms on a formula simplification. DAG size of input: 124 DAG size of output 100 [2018-04-05 15:35:27,929 WARN L151 SmtUtils]: Spent 1237ms on a formula simplification. DAG size of input: 119 DAG size of output 97 [2018-04-05 15:35:31,150 WARN L151 SmtUtils]: Spent 2764ms on a formula simplification. DAG size of input: 143 DAG size of output 131 [2018-04-05 15:35:32,781 WARN L148 SmtUtils]: Spent 1049ms on a formula simplification that was a NOOP. DAG size: 111 [2018-04-05 15:35:34,695 WARN L148 SmtUtils]: Spent 1118ms on a formula simplification that was a NOOP. DAG size: 106 [2018-04-05 15:35:36,227 WARN L148 SmtUtils]: Spent 791ms on a formula simplification that was a NOOP. DAG size: 100 [2018-04-05 15:35:38,214 WARN L151 SmtUtils]: Spent 1130ms on a formula simplification. DAG size of input: 78 DAG size of output 68 [2018-04-05 15:35:40,282 WARN L151 SmtUtils]: Spent 1620ms on a formula simplification. DAG size of input: 111 DAG size of output 91 [2018-04-05 15:35:41,674 WARN L151 SmtUtils]: Spent 840ms on a formula simplification. DAG size of input: 106 DAG size of output 88 [2018-04-05 15:35:43,674 WARN L151 SmtUtils]: Spent 1580ms on a formula simplification. DAG size of input: 127 DAG size of output 117 [2018-04-05 15:35:44,375 WARN L148 SmtUtils]: Spent 345ms on a formula simplification that was a NOOP. DAG size: 100 [2018-04-05 15:35:46,137 WARN L148 SmtUtils]: Spent 386ms on a formula simplification that was a NOOP. DAG size: 95 [2018-04-05 15:35:46,875 WARN L148 SmtUtils]: Spent 391ms on a formula simplification that was a NOOP. DAG size: 89 [2018-04-05 15:35:47,591 WARN L151 SmtUtils]: Spent 325ms on a formula simplification. DAG size of input: 70 DAG size of output 62 [2018-04-05 15:35:48,645 WARN L151 SmtUtils]: Spent 750ms on a formula simplification. DAG size of input: 98 DAG size of output 82 [2018-04-05 15:35:49,579 WARN L151 SmtUtils]: Spent 477ms on a formula simplification. DAG size of input: 93 DAG size of output 79 [2018-04-05 15:35:51,536 WARN L151 SmtUtils]: Spent 1456ms on a formula simplification. DAG size of input: 111 DAG size of output 103 [2018-04-05 15:35:52,286 WARN L148 SmtUtils]: Spent 399ms on a formula simplification that was a NOOP. DAG size: 89 [2018-04-05 15:35:53,204 WARN L148 SmtUtils]: Spent 428ms on a formula simplification that was a NOOP. DAG size: 84 [2018-04-05 15:35:54,016 WARN L148 SmtUtils]: Spent 379ms on a formula simplification that was a NOOP. DAG size: 78 [2018-04-05 15:35:54,784 WARN L151 SmtUtils]: Spent 359ms on a formula simplification. DAG size of input: 62 DAG size of output 56 [2018-04-05 15:35:55,786 WARN L151 SmtUtils]: Spent 681ms on a formula simplification. DAG size of input: 85 DAG size of output 73 [2018-04-05 15:35:56,756 WARN L151 SmtUtils]: Spent 578ms on a formula simplification. DAG size of input: 80 DAG size of output 70 [2018-04-05 15:35:58,073 WARN L151 SmtUtils]: Spent 830ms on a formula simplification. DAG size of input: 95 DAG size of output 89 [2018-04-05 15:35:58,999 WARN L148 SmtUtils]: Spent 316ms on a formula simplification that was a NOOP. DAG size: 78 [2018-04-05 15:35:59,817 WARN L148 SmtUtils]: Spent 421ms on a formula simplification that was a NOOP. DAG size: 73 [2018-04-05 15:36:00,585 WARN L148 SmtUtils]: Spent 215ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-05 15:36:01,296 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 15:36:01,949 WARN L151 SmtUtils]: Spent 369ms on a formula simplification. DAG size of input: 72 DAG size of output 64 [2018-04-05 15:36:02,554 WARN L151 SmtUtils]: Spent 213ms on a formula simplification. DAG size of input: 79 DAG size of output 75 [2018-04-05 15:36:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:36:04,567 INFO L93 Difference]: Finished difference Result 215 states and 224 transitions. [2018-04-05 15:36:04,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-04-05 15:36:04,567 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 120 [2018-04-05 15:36:04,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:36:04,569 INFO L225 Difference]: With dead ends: 215 [2018-04-05 15:36:04,569 INFO L226 Difference]: Without dead ends: 214 [2018-04-05 15:36:04,574 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10055 ImplicationChecksByTransitivity, 116.4s TimeCoverageRelationStatistics Valid=5156, Invalid=41716, Unknown=0, NotChecked=0, Total=46872 [2018-04-05 15:36:04,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-04-05 15:36:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2018-04-05 15:36:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-04-05 15:36:04,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 213 transitions. [2018-04-05 15:36:04,589 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 213 transitions. Word has length 120 [2018-04-05 15:36:04,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:36:04,590 INFO L459 AbstractCegarLoop]: Abstraction has 211 states and 213 transitions. [2018-04-05 15:36:04,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-04-05 15:36:04,590 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 213 transitions. [2018-04-05 15:36:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-04-05 15:36:04,592 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:36:04,592 INFO L355 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:36:04,592 INFO L408 AbstractCegarLoop]: === Iteration 19 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:36:04,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1612861737, now seen corresponding path program 5 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 [2018-04-05 15:36:04,608 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:36:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:36:04,706 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:36:04,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:36:04,726 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:36:04,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:36:04,739 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:36:04,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:36:04,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:36:04,789 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:36:04,790 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:36:04,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:36:04,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:36:04,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:36:04,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:36:04,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:36:04,821 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 15:36:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 0 proven. 1432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:36:08,391 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:36:10,729 WARN L148 SmtUtils]: Spent 227ms on a formula simplification that was a NOOP. DAG size: 16