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/memsafety/960521-1_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 16:49:28,553 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:49:28,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:49:28,594 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 16:49:28,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 16:49:28,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 16:49:28,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 16:49:28,601 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 16:49:28,604 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 16:49:28,605 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 16:49:28,613 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 16:49:28,614 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 16:49:28,615 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 16:49:28,628 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 16:49:28,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 16:49:28,648 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 16:49:28,651 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 16:49:28,653 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 16:49:28,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 16:49:28,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 16:49:28,666 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 16:49:28,667 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 16:49:28,667 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 16:49:28,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 16:49:28,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 16:49:28,678 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 16:49:28,678 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 16:49:28,678 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 16:49:28,694 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 16:49:28,694 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 16:49:28,695 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 16:49:28,695 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 16:49:28,753 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:49:28,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:49:28,754 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:49:28,754 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:49:28,761 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:49:28,761 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:49:28,762 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:49:28,762 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:49:28,762 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:49:28,763 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:49:28,763 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:49:28,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:49:28,763 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:49:28,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:49:28,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:49:28,764 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:49:28,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:49:28,765 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:49:28,777 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:49:28,777 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:49:28,777 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:49:28,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:49:28,778 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:49:28,778 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:49:28,780 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:49:28,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:49:28,780 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:49:28,781 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:49:28,781 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:49:28,781 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:49:28,782 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:49:28,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:49:28,788 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:49:28,789 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:49:28,789 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:49:28,789 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:49:28,790 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:49:28,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:49:28,901 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:49:28,907 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:49:28,909 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:49:28,911 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:49:28,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/960521-1_false-valid-deref.i [2018-04-05 16:49:29,490 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGcd2771b28 [2018-04-05 16:49:30,028 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:49:30,028 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:49:30,029 INFO L168 CDTParser]: Scanning 960521-1_false-valid-deref.i [2018-04-05 16:49:30,072 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:49:30,072 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:49:30,072 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:49:30,073 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_f_________false_valid_deref_i__foo ('foo') in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,073 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,073 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:49:30,073 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____fsblkcnt64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,073 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____uint64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,073 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__ssize_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____swblk_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_once_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____uid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_short in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__ino_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__wchar_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____socklen_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_int64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__loff_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____useconds_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____fsfilcnt64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__b in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__id_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__a in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__ldiv_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____int64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__dev_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____intptr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__size_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__off_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_attr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____u_int in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,076 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__register_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__quad_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__n in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____clockid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_cond_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_mutex_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__suseconds_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____loff_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,077 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____u_short in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__int64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__fsid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_int16_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____WAIT_STATUS in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__ushort in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____clock_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__div_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____uint8_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,078 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____key_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____time_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_spinlock_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____mode_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__int8_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____fsfilcnt_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____rlim64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____daddr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,079 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____ino_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__caddr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____sigset_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__daddr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__clock_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__fd_set in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____uint16_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____fsid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__gid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_condattr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_long in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____caddr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__mode_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____dev_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____int8_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_int32_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__sigset_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__ulong in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____u_long in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____off64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____u_char in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_quad_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____blksize_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__blksize_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____qaddr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__uid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_rwlock_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__lldiv_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____uint32_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____int16_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_barrier_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__time_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_char in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_key_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__int16_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____fsblkcnt_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__blkcnt_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____pthread_list_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_barrierattr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____blkcnt_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____rlim_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_int in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____int32_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__fd_mask in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____u_quad_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____suseconds_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____timer_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__fsblkcnt_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____gid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____quad_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_mutexattr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____pid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____ino64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__u_int8_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____fd_mask in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__nlink_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__uint in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__int32_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____blkcnt64_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____off_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__fsfilcnt_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____id_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__pthread_rwlockattr_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____nlink_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____sig_atomic_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__clockid_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__key_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i____ssize_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________false_valid_deref_i__timer_t in 960521-1_false-valid-deref.i [2018-04-05 16:49:30,157 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGcd2771b28 [2018-04-05 16:49:30,172 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:49:30,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:49:30,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:49:30,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:49:30,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:49:30,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:49:30" (1/1) ... [2018-04-05 16:49:30,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1a81a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:30, skipping insertion in model container [2018-04-05 16:49:30,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:49:30" (1/1) ... [2018-04-05 16:49:30,255 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:49:30,339 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:49:30,916 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:49:31,081 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:49:31,097 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-04-05 16:49:31,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31 WrapperNode [2018-04-05 16:49:31,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:49:31,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:49:31,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:49:31,226 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:49:31,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (1/1) ... [2018-04-05 16:49:31,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:49:31,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:49:31,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:49:31,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:49:31,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (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 16:49:31,763 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:49:31,763 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:49:31,764 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_________false_valid_deref_i__foo [2018-04-05 16:49:31,770 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:49:31,770 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-05 16:49:31,770 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:49:31,770 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:49:31,770 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:49:31,771 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:49:31,772 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:49:31,773 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:49:31,773 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:49:31,773 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:49:31,773 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:49:31,773 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:49:31,773 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:49:31,774 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:49:31,786 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:49:31,786 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:49:31,786 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:49:31,786 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:49:31,786 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:49:31,787 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:49:31,788 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:49:31,789 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:49:31,790 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:49:31,792 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:49:31,793 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:49:31,793 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:49:31,793 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:49:31,793 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:49:31,793 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:49:31,799 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:49:31,799 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:49:31,799 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:49:31,799 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:49:31,799 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:49:31,800 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:49:31,801 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:49:31,802 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:49:31,803 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:49:31,805 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:49:31,806 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_________false_valid_deref_i__foo [2018-04-05 16:49:31,807 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:49:31,808 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:49:32,822 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:49:32,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:49:32 BoogieIcfgContainer [2018-04-05 16:49:32,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:49:32,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:49:32,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:49:32,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:49:32,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:49:30" (1/3) ... [2018-04-05 16:49:32,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c147ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:49:32, skipping insertion in model container [2018-04-05 16:49:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:49:31" (2/3) ... [2018-04-05 16:49:32,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c147ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:49:32, skipping insertion in model container [2018-04-05 16:49:32,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:49:32" (3/3) ... [2018-04-05 16:49:32,836 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_false-valid-deref.i [2018-04-05 16:49:32,846 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:49:32,869 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-04-05 16:49:32,989 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:49:32,990 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:49:32,990 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:49:32,990 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:49:32,991 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:49:32,991 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:49:32,991 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:49:32,991 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:49:32,991 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:49:32,992 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:49:33,024 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2018-04-05 16:49:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-05 16:49:33,032 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:33,033 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 16:49:33,035 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:33,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1699642379, 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 16:49:33,105 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:33,325 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:33,430 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 16:49:33,441 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:33,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:33,457 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:49:33,566 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 16:49:33,566 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:49:33,607 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 16:49:33,694 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:49:33,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-05 16:49:33,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-05 16:49:33,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-05 16:49:33,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:49:33,720 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2018-04-05 16:49:34,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:49:34,322 INFO L93 Difference]: Finished difference Result 115 states and 123 transitions. [2018-04-05 16:49:34,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:49:34,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-05 16:49:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:49:34,346 INFO L225 Difference]: With dead ends: 115 [2018-04-05 16:49:34,347 INFO L226 Difference]: Without dead ends: 68 [2018-04-05 16:49:34,358 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:49:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-05 16:49:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-04-05 16:49:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-05 16:49:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2018-04-05 16:49:34,423 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 17 [2018-04-05 16:49:34,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:49:34,424 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2018-04-05 16:49:34,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-05 16:49:34,424 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2018-04-05 16:49:34,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-05 16:49:34,425 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:34,425 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 16:49:34,426 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:34,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1699642380, 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 16:49:34,454 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:34,537 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:34,612 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 16:49:34,612 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:34,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:49:34,659 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-04-05 16:49:34,890 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 16:49:34,890 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:49:35,350 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 16:49:35,391 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:49:35,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2018-04-05 16:49:35,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:49:35,394 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:49:35,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:49:35,396 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 10 states. [2018-04-05 16:49:36,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:49:36,501 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2018-04-05 16:49:36,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:49:36,501 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2018-04-05 16:49:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:49:36,503 INFO L225 Difference]: With dead ends: 68 [2018-04-05 16:49:36,504 INFO L226 Difference]: Without dead ends: 67 [2018-04-05 16:49:36,505 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2018-04-05 16:49:36,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-05 16:49:36,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-05 16:49:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 16:49:36,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2018-04-05 16:49:36,540 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 17 [2018-04-05 16:49:36,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:49:36,543 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2018-04-05 16:49:36,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:49:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2018-04-05 16:49:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-05 16:49:36,544 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:36,544 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:49:36,545 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:36,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1764347413, 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 16:49:36,575 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:36,634 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:36,650 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 16:49:36,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:36,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:36,656 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:49:36,715 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 16:49:36,716 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:36,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:49:36,756 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-05 16:49:36,799 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 16:49:36,800 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:49:36,903 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 16:49:36,988 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:49:36,989 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:49:36,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:49:36,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:49:36,990 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:49:36,990 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand 4 states. [2018-04-05 16:49:37,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:49:37,479 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2018-04-05 16:49:37,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 16:49:37,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-04-05 16:49:37,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:49:37,484 INFO L225 Difference]: With dead ends: 67 [2018-04-05 16:49:37,484 INFO L226 Difference]: Without dead ends: 64 [2018-04-05 16:49:37,485 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:49:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-05 16:49:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-05 16:49:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-05 16:49:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2018-04-05 16:49:37,496 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 24 [2018-04-05 16:49:37,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:49:37,501 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2018-04-05 16:49:37,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:49:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2018-04-05 16:49:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-05 16:49:37,502 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:37,502 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] [2018-04-05 16:49:37,502 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:37,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1764347414, 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 16:49:37,528 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:37,636 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:37,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 16:49:37,676 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:37,720 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 16:49:37,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:37,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:37,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-04-05 16:49:37,958 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:49:37,960 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 16 treesize of output 19 [2018-04-05 16:49:37,960 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:38,036 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:49:38,052 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:49:38,053 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 16:49:38,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:38,094 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:49:38,094 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-04-05 16:49:38,461 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 16:49:38,462 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:49:39,012 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 16:49:39,012 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:39,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 19 [2018-04-05 16:49:39,112 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 8 treesize of output 1 [2018-04-05 16:49:39,112 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:39,119 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:39,140 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 16:49:39,141 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2018-04-05 16:49:39,227 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 16:49:39,264 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:49:39,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 13 [2018-04-05 16:49:39,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-05 16:49:39,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-05 16:49:39,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:49:39,265 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 14 states. [2018-04-05 16:49:39,607 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 31 DAG size of output 31 [2018-04-05 16:49:39,806 WARN L151 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 38 DAG size of output 38 [2018-04-05 16:49:40,382 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 30 DAG size of output 30 [2018-04-05 16:49:41,172 WARN L151 SmtUtils]: Spent 239ms on a formula simplification. DAG size of input: 47 DAG size of output 40 [2018-04-05 16:49:41,570 WARN L151 SmtUtils]: Spent 195ms on a formula simplification. DAG size of input: 38 DAG size of output 20 [2018-04-05 16:49:41,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:49:41,685 INFO L93 Difference]: Finished difference Result 110 states and 117 transitions. [2018-04-05 16:49:41,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 16:49:41,686 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2018-04-05 16:49:41,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:49:41,687 INFO L225 Difference]: With dead ends: 110 [2018-04-05 16:49:41,687 INFO L226 Difference]: Without dead ends: 73 [2018-04-05 16:49:41,688 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-04-05 16:49:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-05 16:49:41,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2018-04-05 16:49:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 16:49:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2018-04-05 16:49:41,714 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 24 [2018-04-05 16:49:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:49:41,714 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2018-04-05 16:49:41,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-05 16:49:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2018-04-05 16:49:41,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-05 16:49:41,718 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:41,718 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:49:41,718 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:41,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1500125492, 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 16:49:41,743 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:41,791 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:41,829 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 16:49:41,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:41,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:41,940 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 16:49:42,093 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 16 treesize of output 15 [2018-04-05 16:49:42,093 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:42,128 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 16:49:42,129 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-05 16:49:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:49:42,595 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:49:43,638 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 15 treesize of output 19 [2018-04-05 16:49:43,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-04-05 16:49:43,716 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:43,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:43,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:43,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-04-05 16:49:43,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:49:43,889 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:49:43,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-04-05 16:49:43,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 16:49:43,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 16:49:43,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=189, Unknown=1, NotChecked=0, Total=240 [2018-04-05 16:49:43,890 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand 16 states. [2018-04-05 16:49:44,867 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 28 DAG size of output 28 [2018-04-05 16:49:45,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:49:45,412 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2018-04-05 16:49:45,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-05 16:49:45,413 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 30 [2018-04-05 16:49:45,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:49:45,415 INFO L225 Difference]: With dead ends: 120 [2018-04-05 16:49:45,415 INFO L226 Difference]: Without dead ends: 83 [2018-04-05 16:49:45,416 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=152, Invalid=399, Unknown=1, NotChecked=0, Total=552 [2018-04-05 16:49:45,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-05 16:49:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2018-04-05 16:49:45,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-05 16:49:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2018-04-05 16:49:45,463 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 30 [2018-04-05 16:49:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:49:45,464 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2018-04-05 16:49:45,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 16:49:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-04-05 16:49:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-05 16:49:45,465 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:45,465 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:49:45,466 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:45,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1452484936, now seen corresponding path program 2 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 16:49:45,501 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:45,551 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:45,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 16:49:45,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:45,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:45,615 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 16:49:45,715 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 16 treesize of output 15 [2018-04-05 16:49:45,716 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:45,755 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 16:49:45,755 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-05 16:49:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:49:46,615 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:49:48,287 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 15 treesize of output 19 [2018-04-05 16:49:48,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-04-05 16:49:48,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:48,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:48,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:48,370 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-04-05 16:49:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:49:48,570 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:49:48,570 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2018-04-05 16:49:48,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-05 16:49:48,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-05 16:49:48,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=457, Unknown=1, NotChecked=0, Total=552 [2018-04-05 16:49:48,572 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 24 states. [2018-04-05 16:49:50,136 WARN L151 SmtUtils]: Spent 541ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:49:50,675 WARN L151 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:49:51,083 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:49:52,008 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 36 DAG size of output 28 [2018-04-05 16:49:52,321 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 40 DAG size of output 27 [2018-04-05 16:49:52,522 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 27 DAG size of output 20 [2018-04-05 16:49:52,733 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 36 DAG size of output 26 [2018-04-05 16:49:53,063 WARN L151 SmtUtils]: Spent 165ms on a formula simplification. DAG size of input: 33 DAG size of output 27 [2018-04-05 16:49:53,327 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 23 DAG size of output 20 [2018-04-05 16:49:53,579 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 29 DAG size of output 26 [2018-04-05 16:49:54,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:49:54,438 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2018-04-05 16:49:54,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-05 16:49:54,443 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 42 [2018-04-05 16:49:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:49:54,445 INFO L225 Difference]: With dead ends: 144 [2018-04-05 16:49:54,445 INFO L226 Difference]: Without dead ends: 107 [2018-04-05 16:49:54,446 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=464, Invalid=1427, Unknown=1, NotChecked=0, Total=1892 [2018-04-05 16:49:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-04-05 16:49:54,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2018-04-05 16:49:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-04-05 16:49:54,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 105 transitions. [2018-04-05 16:49:54,518 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 105 transitions. Word has length 42 [2018-04-05 16:49:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:49:54,519 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 105 transitions. [2018-04-05 16:49:54,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-05 16:49:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 105 transitions. [2018-04-05 16:49:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-05 16:49:54,521 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:49:54,521 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 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 16:49:54,522 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:49:54,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1537199984, now seen corresponding path program 3 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 16:49:54,555 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:49:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:49:54,705 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:49:54,731 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 16:49:54,732 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:54,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:49:54,756 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 16:49:54,857 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 16 treesize of output 15 [2018-04-05 16:49:54,857 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:49:54,895 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 16:49:54,895 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-05 16:49:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:49:56,720 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:50:00,158 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 15 treesize of output 19 [2018-04-05 16:50:00,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-04-05 16:50:00,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:50:00,255 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:50:00,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:50:00,263 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-04-05 16:50:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:50:00,596 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:50:00,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-04-05 16:50:00,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-05 16:50:00,598 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-05 16:50:00,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1329, Unknown=1, NotChecked=0, Total=1560 [2018-04-05 16:50:00,599 INFO L87 Difference]: Start difference. First operand 103 states and 105 transitions. Second operand 40 states. [2018-04-05 16:50:01,703 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 20 DAG size of output 20 [2018-04-05 16:50:03,594 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:50:04,191 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:50:04,480 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:50:04,862 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:50:05,666 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 22 DAG size of output 22 [2018-04-05 16:50:06,131 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:50:07,090 WARN L151 SmtUtils]: Spent 611ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:50:08,428 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:50:09,320 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 52 DAG size of output 28 [2018-04-05 16:50:09,851 WARN L151 SmtUtils]: Spent 309ms on a formula simplification. DAG size of input: 68 DAG size of output 27 [2018-04-05 16:50:10,218 WARN L151 SmtUtils]: Spent 146ms on a formula simplification. DAG size of input: 43 DAG size of output 20 [2018-04-05 16:50:10,693 WARN L151 SmtUtils]: Spent 297ms on a formula simplification. DAG size of input: 64 DAG size of output 26 [2018-04-05 16:50:11,260 WARN L151 SmtUtils]: Spent 302ms on a formula simplification. DAG size of input: 61 DAG size of output 27 [2018-04-05 16:50:11,790 WARN L151 SmtUtils]: Spent 201ms on a formula simplification. DAG size of input: 39 DAG size of output 20 [2018-04-05 16:50:12,427 WARN L151 SmtUtils]: Spent 333ms on a formula simplification. DAG size of input: 57 DAG size of output 26 [2018-04-05 16:50:12,968 WARN L151 SmtUtils]: Spent 256ms on a formula simplification. DAG size of input: 54 DAG size of output 27 [2018-04-05 16:50:13,513 WARN L151 SmtUtils]: Spent 210ms on a formula simplification. DAG size of input: 35 DAG size of output 20 [2018-04-05 16:50:14,095 WARN L151 SmtUtils]: Spent 203ms on a formula simplification. DAG size of input: 50 DAG size of output 26 [2018-04-05 16:50:14,604 WARN L151 SmtUtils]: Spent 216ms on a formula simplification. DAG size of input: 47 DAG size of output 27 [2018-04-05 16:50:15,046 WARN L151 SmtUtils]: Spent 171ms on a formula simplification. DAG size of input: 31 DAG size of output 20 [2018-04-05 16:50:15,446 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 43 DAG size of output 26 [2018-04-05 16:50:15,845 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 40 DAG size of output 27 [2018-04-05 16:50:16,487 WARN L151 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 36 DAG size of output 26 [2018-04-05 16:50:16,927 WARN L151 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 33 DAG size of output 27 [2018-04-05 16:50:17,733 WARN L151 SmtUtils]: Spent 168ms on a formula simplification. DAG size of input: 29 DAG size of output 26 [2018-04-05 16:50:19,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:50:19,485 INFO L93 Difference]: Finished difference Result 192 states and 210 transitions. [2018-04-05 16:50:19,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-05 16:50:19,486 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 66 [2018-04-05 16:50:19,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:50:19,488 INFO L225 Difference]: With dead ends: 192 [2018-04-05 16:50:19,488 INFO L226 Difference]: Without dead ends: 155 [2018-04-05 16:50:19,506 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1517 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=1568, Invalid=5403, Unknown=1, NotChecked=0, Total=6972 [2018-04-05 16:50:19,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-04-05 16:50:19,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2018-04-05 16:50:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-04-05 16:50:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 153 transitions. [2018-04-05 16:50:19,567 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 153 transitions. Word has length 66 [2018-04-05 16:50:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:50:19,568 INFO L459 AbstractCegarLoop]: Abstraction has 151 states and 153 transitions. [2018-04-05 16:50:19,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-05 16:50:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 153 transitions. [2018-04-05 16:50:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-04-05 16:50:19,571 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:50:19,571 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 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 16:50:19,571 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:50:19,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1519334336, now seen corresponding path program 4 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 16:50:19,601 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:50:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:50:19,768 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:50:19,786 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 16:50:19,787 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:50:19,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:50:19,818 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 16:50:19,923 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 16 treesize of output 15 [2018-04-05 16:50:19,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:50:19,957 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 16:50:19,957 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-05 16:50:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:50:26,087 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:50:34,789 WARN L148 SmtUtils]: Spent 126ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:50:35,833 WARN L148 SmtUtils]: Spent 151ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:50:37,878 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 12 [2018-04-05 16:50:40,065 WARN L148 SmtUtils]: Spent 552ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-05 16:50:40,069 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 15 treesize of output 19 [2018-04-05 16:50:40,160 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-04-05 16:50:40,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:50:40,186 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:50:40,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:50:40,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-04-05 16:50:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:50:40,730 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:50:40,730 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 71 [2018-04-05 16:50:40,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-04-05 16:50:40,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-04-05 16:50:40,733 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=694, Invalid=4417, Unknown=1, NotChecked=0, Total=5112 [2018-04-05 16:50:40,738 INFO L87 Difference]: Start difference. First operand 151 states and 153 transitions. Second operand 72 states. [2018-04-05 16:50:43,311 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 22 DAG size of output 22 [2018-04-05 16:50:45,384 WARN L151 SmtUtils]: Spent 193ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:50:46,366 WARN L151 SmtUtils]: Spent 311ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:50:47,426 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:50:48,644 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:50:49,520 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 22 DAG size of output 22 [2018-04-05 16:50:50,442 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:50:54,436 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:50:55,844 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:50:56,694 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:50:57,793 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:50:58,501 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:51:00,038 WARN L151 SmtUtils]: Spent 195ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:51:06,517 WARN L151 SmtUtils]: Spent 638ms on a formula simplification. DAG size of input: 84 DAG size of output 23 [2018-04-05 16:51:08,558 WARN L151 SmtUtils]: Spent 1486ms on a formula simplification. DAG size of input: 124 DAG size of output 27 [2018-04-05 16:51:09,709 WARN L151 SmtUtils]: Spent 209ms on a formula simplification. DAG size of input: 75 DAG size of output 20 [2018-04-05 16:51:10,823 WARN L151 SmtUtils]: Spent 693ms on a formula simplification. DAG size of input: 120 DAG size of output 26 [2018-04-05 16:51:12,097 WARN L151 SmtUtils]: Spent 575ms on a formula simplification. DAG size of input: 117 DAG size of output 27 [2018-04-05 16:51:13,005 WARN L151 SmtUtils]: Spent 389ms on a formula simplification. DAG size of input: 71 DAG size of output 20 [2018-04-05 16:51:14,498 WARN L151 SmtUtils]: Spent 864ms on a formula simplification. DAG size of input: 113 DAG size of output 26 [2018-04-05 16:51:16,116 WARN L151 SmtUtils]: Spent 623ms on a formula simplification. DAG size of input: 110 DAG size of output 27 [2018-04-05 16:51:16,913 WARN L151 SmtUtils]: Spent 218ms on a formula simplification. DAG size of input: 67 DAG size of output 20 [2018-04-05 16:51:17,743 WARN L151 SmtUtils]: Spent 417ms on a formula simplification. DAG size of input: 106 DAG size of output 26 [2018-04-05 16:51:19,001 WARN L151 SmtUtils]: Spent 785ms on a formula simplification. DAG size of input: 103 DAG size of output 27 [2018-04-05 16:51:19,995 WARN L151 SmtUtils]: Spent 381ms on a formula simplification. DAG size of input: 63 DAG size of output 20 [2018-04-05 16:51:20,916 WARN L151 SmtUtils]: Spent 304ms on a formula simplification. DAG size of input: 99 DAG size of output 26 [2018-04-05 16:51:21,768 WARN L151 SmtUtils]: Spent 330ms on a formula simplification. DAG size of input: 96 DAG size of output 27 [2018-04-05 16:51:22,306 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 59 DAG size of output 20 [2018-04-05 16:51:23,060 WARN L151 SmtUtils]: Spent 330ms on a formula simplification. DAG size of input: 92 DAG size of output 26 [2018-04-05 16:51:23,841 WARN L151 SmtUtils]: Spent 290ms on a formula simplification. DAG size of input: 89 DAG size of output 27 [2018-04-05 16:51:24,516 WARN L151 SmtUtils]: Spent 204ms on a formula simplification. DAG size of input: 55 DAG size of output 20 [2018-04-05 16:51:25,245 WARN L151 SmtUtils]: Spent 267ms on a formula simplification. DAG size of input: 85 DAG size of output 26 [2018-04-05 16:51:26,171 WARN L151 SmtUtils]: Spent 391ms on a formula simplification. DAG size of input: 82 DAG size of output 27 [2018-04-05 16:51:26,883 WARN L151 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 51 DAG size of output 20 [2018-04-05 16:51:27,738 WARN L151 SmtUtils]: Spent 310ms on a formula simplification. DAG size of input: 78 DAG size of output 26 [2018-04-05 16:51:28,656 WARN L151 SmtUtils]: Spent 314ms on a formula simplification. DAG size of input: 75 DAG size of output 27 [2018-04-05 16:51:29,532 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 47 DAG size of output 20 [2018-04-05 16:51:30,250 WARN L151 SmtUtils]: Spent 251ms on a formula simplification. DAG size of input: 71 DAG size of output 26 [2018-04-05 16:51:30,938 WARN L151 SmtUtils]: Spent 217ms on a formula simplification. DAG size of input: 68 DAG size of output 27 [2018-04-05 16:51:31,496 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 43 DAG size of output 20 [2018-04-05 16:51:32,126 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 64 DAG size of output 26 [2018-04-05 16:51:32,762 WARN L151 SmtUtils]: Spent 192ms on a formula simplification. DAG size of input: 61 DAG size of output 27 [2018-04-05 16:51:33,550 WARN L151 SmtUtils]: Spent 351ms on a formula simplification. DAG size of input: 39 DAG size of output 20 [2018-04-05 16:51:34,629 WARN L151 SmtUtils]: Spent 470ms on a formula simplification. DAG size of input: 57 DAG size of output 26 [2018-04-05 16:51:35,791 WARN L151 SmtUtils]: Spent 346ms on a formula simplification. DAG size of input: 54 DAG size of output 27 [2018-04-05 16:51:36,610 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 35 DAG size of output 20 [2018-04-05 16:51:37,690 WARN L151 SmtUtils]: Spent 269ms on a formula simplification. DAG size of input: 50 DAG size of output 26 [2018-04-05 16:51:38,421 WARN L151 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 47 DAG size of output 27 [2018-04-05 16:51:39,842 WARN L151 SmtUtils]: Spent 204ms on a formula simplification. DAG size of input: 43 DAG size of output 26 [2018-04-05 16:51:40,608 WARN L151 SmtUtils]: Spent 139ms on a formula simplification. DAG size of input: 40 DAG size of output 27 [2018-04-05 16:51:41,188 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 27 DAG size of output 20 [2018-04-05 16:51:41,903 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 36 DAG size of output 26 [2018-04-05 16:51:42,809 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 33 DAG size of output 27 [2018-04-05 16:51:43,963 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 29 DAG size of output 26 [2018-04-05 16:51:47,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:51:47,189 INFO L93 Difference]: Finished difference Result 288 states and 322 transitions. [2018-04-05 16:51:47,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-04-05 16:51:47,190 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 114 [2018-04-05 16:51:47,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:51:47,192 INFO L225 Difference]: With dead ends: 288 [2018-04-05 16:51:47,192 INFO L226 Difference]: Without dead ends: 251 [2018-04-05 16:51:47,199 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6153 ImplicationChecksByTransitivity, 71.7s TimeCoverageRelationStatistics Valid=5696, Invalid=21035, Unknown=1, NotChecked=0, Total=26732 [2018-04-05 16:51:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-04-05 16:51:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 247. [2018-04-05 16:51:47,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-04-05 16:51:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 249 transitions. [2018-04-05 16:51:47,252 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 249 transitions. Word has length 114 [2018-04-05 16:51:47,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:51:47,256 INFO L459 AbstractCegarLoop]: Abstraction has 247 states and 249 transitions. [2018-04-05 16:51:47,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-04-05 16:51:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 249 transitions. [2018-04-05 16:51:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-04-05 16:51:47,264 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:51:47,264 INFO L355 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 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 16:51:47,264 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr1RequiresViolation, __U_MULTI_f_________false_valid_deref_i__fooErr2RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-05 16:51:47,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1088005024, now seen corresponding path program 5 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 16:51:47,294 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:51:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:51:47,571 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:51:47,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 16:51:47,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:51:47,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:51:47,629 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 16:51:47,727 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 16 treesize of output 15 [2018-04-05 16:51:47,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:51:47,759 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 16:51:47,759 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-05 16:52:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:52:09,375 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:52:34,707 WARN L148 SmtUtils]: Spent 141ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:52:44,780 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 15 treesize of output 19 [2018-04-05 16:52:44,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-04-05 16:52:44,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:52:44,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:52:44,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:52:44,871 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-04-05 16:52:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:52:45,725 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:52:45,725 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 135 [2018-04-05 16:52:45,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-04-05 16:52:45,728 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-04-05 16:52:45,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2390, Invalid=15967, Unknown=3, NotChecked=0, Total=18360 [2018-04-05 16:52:45,734 INFO L87 Difference]: Start difference. First operand 247 states and 249 transitions. Second operand 136 states. [2018-04-05 16:52:52,847 WARN L151 SmtUtils]: Spent 412ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:53:03,992 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:10,250 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:16,578 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:53:21,659 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:22,355 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:53:23,592 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:53:24,241 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:32,726 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:34,530 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:53:36,047 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:53:37,617 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:53:38,700 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:41,281 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:45,083 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:53:47,706 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:53:52,978 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:53:55,666 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 21 DAG size of output 21 [2018-04-05 16:53:56,892 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 23 DAG size of output 23 [2018-04-05 16:53:58,056 WARN L151 SmtUtils]: Spent 412ms on a formula simplification. DAG size of input: 24 DAG size of output 24 [2018-04-05 16:54:02,052 WARN L151 SmtUtils]: Spent 1808ms on a formula simplification. DAG size of input: 147 DAG size of output 22 [2018-04-05 16:54:04,923 WARN L151 SmtUtils]: Spent 1497ms on a formula simplification. DAG size of input: 235 DAG size of output 26 [2018-04-05 16:54:06,684 WARN L151 SmtUtils]: Spent 779ms on a formula simplification. DAG size of input: 139 DAG size of output 20 [2018-04-05 16:54:09,227 WARN L151 SmtUtils]: Spent 1193ms on a formula simplification. DAG size of input: 232 DAG size of output 26 [2018-04-05 16:54:11,345 WARN L151 SmtUtils]: Spent 826ms on a formula simplification. DAG size of input: 229 DAG size of output 27 [2018-04-05 16:54:12,492 WARN L151 SmtUtils]: Spent 381ms on a formula simplification. DAG size of input: 135 DAG size of output 20 [2018-04-05 16:54:14,895 WARN L151 SmtUtils]: Spent 1217ms on a formula simplification. DAG size of input: 225 DAG size of output 26 [2018-04-05 16:54:16,858 WARN L151 SmtUtils]: Spent 747ms on a formula simplification. DAG size of input: 222 DAG size of output 27 [2018-04-05 16:54:18,278 WARN L151 SmtUtils]: Spent 424ms on a formula simplification. DAG size of input: 131 DAG size of output 20 [2018-04-05 16:54:20,109 WARN L151 SmtUtils]: Spent 777ms on a formula simplification. DAG size of input: 218 DAG size of output 26 [2018-04-05 16:54:22,833 WARN L151 SmtUtils]: Spent 1334ms on a formula simplification. DAG size of input: 215 DAG size of output 27 [2018-04-05 16:54:25,078 WARN L151 SmtUtils]: Spent 825ms on a formula simplification. DAG size of input: 127 DAG size of output 20 [2018-04-05 16:54:29,253 WARN L151 SmtUtils]: Spent 2898ms on a formula simplification. DAG size of input: 211 DAG size of output 26 [2018-04-05 16:54:31,974 WARN L151 SmtUtils]: Spent 1216ms on a formula simplification. DAG size of input: 208 DAG size of output 27 [2018-04-05 16:54:34,341 WARN L151 SmtUtils]: Spent 876ms on a formula simplification. DAG size of input: 123 DAG size of output 20 [2018-04-05 16:54:36,317 WARN L151 SmtUtils]: Spent 673ms on a formula simplification. DAG size of input: 204 DAG size of output 26 [2018-04-05 16:54:38,470 WARN L151 SmtUtils]: Spent 749ms on a formula simplification. DAG size of input: 201 DAG size of output 27 [2018-04-05 16:54:39,576 WARN L151 SmtUtils]: Spent 276ms on a formula simplification. DAG size of input: 119 DAG size of output 20 [2018-04-05 16:54:41,690 WARN L151 SmtUtils]: Spent 1028ms on a formula simplification. DAG size of input: 197 DAG size of output 26 [2018-04-05 16:54:44,013 WARN L151 SmtUtils]: Spent 825ms on a formula simplification. DAG size of input: 194 DAG size of output 27 [2018-04-05 16:54:45,221 WARN L151 SmtUtils]: Spent 281ms on a formula simplification. DAG size of input: 115 DAG size of output 20 [2018-04-05 16:54:47,095 WARN L151 SmtUtils]: Spent 695ms on a formula simplification. DAG size of input: 190 DAG size of output 26 [2018-04-05 16:54:49,076 WARN L151 SmtUtils]: Spent 695ms on a formula simplification. DAG size of input: 187 DAG size of output 27 [2018-04-05 16:54:50,942 WARN L151 SmtUtils]: Spent 375ms on a formula simplification. DAG size of input: 111 DAG size of output 20 [2018-04-05 16:54:53,668 WARN L151 SmtUtils]: Spent 1451ms on a formula simplification. DAG size of input: 183 DAG size of output 26 [2018-04-05 16:54:56,703 WARN L151 SmtUtils]: Spent 1308ms on a formula simplification. DAG size of input: 180 DAG size of output 27 [2018-04-05 16:54:58,442 WARN L151 SmtUtils]: Spent 778ms on a formula simplification. DAG size of input: 107 DAG size of output 20 [2018-04-05 16:54:59,953 WARN L151 SmtUtils]: Spent 584ms on a formula simplification. DAG size of input: 176 DAG size of output 26 [2018-04-05 16:55:01,943 WARN L151 SmtUtils]: Spent 794ms on a formula simplification. DAG size of input: 173 DAG size of output 27 [2018-04-05 16:55:03,443 WARN L151 SmtUtils]: Spent 292ms on a formula simplification. DAG size of input: 103 DAG size of output 20 [2018-04-05 16:55:05,394 WARN L151 SmtUtils]: Spent 786ms on a formula simplification. DAG size of input: 169 DAG size of output 26 [2018-04-05 16:55:07,727 WARN L151 SmtUtils]: Spent 615ms on a formula simplification. DAG size of input: 166 DAG size of output 27 [2018-04-05 16:55:09,250 WARN L151 SmtUtils]: Spent 422ms on a formula simplification. DAG size of input: 99 DAG size of output 20 [2018-04-05 16:55:11,024 WARN L151 SmtUtils]: Spent 545ms on a formula simplification. DAG size of input: 162 DAG size of output 26 [2018-04-05 16:55:12,644 WARN L151 SmtUtils]: Spent 538ms on a formula simplification. DAG size of input: 159 DAG size of output 27 [2018-04-05 16:55:14,194 WARN L151 SmtUtils]: Spent 453ms on a formula simplification. DAG size of input: 95 DAG size of output 20