java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:44:32,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:44:32,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:44:32,647 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 15:44:32,648 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 15:44:32,649 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 15:44:32,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 15:44:32,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 15:44:32,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 15:44:32,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 15:44:32,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 15:44:32,672 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 15:44:32,673 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 15:44:32,674 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 15:44:32,681 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 15:44:32,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 15:44:32,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 15:44:32,694 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 15:44:32,696 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 15:44:32,698 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 15:44:32,700 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-05 15:44:32,707 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 15:44:32,737 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:44:32,737 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:44:32,738 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:44:32,738 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:44:32,739 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:44:32,739 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:44:32,739 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:44:32,739 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:44:32,740 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:44:32,740 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:44:32,740 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:44:32,741 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:44:32,741 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:44:32,741 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:44:32,741 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:44:32,741 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:44:32,742 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:44:32,742 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:44:32,742 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:44:32,742 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:44:32,742 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:44:32,743 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:44:32,743 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:44:32,743 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:44:32,743 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:44:32,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:44:32,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:44:32,744 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:44:32,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:44:32,744 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:44:32,744 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:44:32,745 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:32,745 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:44:32,746 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:44:32,746 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:44:32,746 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:44:32,747 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:44:32,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:44:32,855 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:44:32,868 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:44:32,876 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:44:32,877 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:44:32,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,433 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG3cce1a523 [2018-04-05 15:44:33,952 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:44:33,952 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:44:33,953 INFO L168 CDTParser]: Scanning cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,975 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:44:33,976 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:44:33,976 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:44:33,976 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,976 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,977 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,977 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,977 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:44:33,977 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,977 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,982 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,982 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,982 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,982 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,982 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,983 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,985 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__uint in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,004 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,004 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,004 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,005 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,006 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,007 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,008 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,010 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,010 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,011 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,012 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,013 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,013 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,013 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:34,079 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG3cce1a523 [2018-04-05 15:44:34,103 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:44:34,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:44:34,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:44:34,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:44:34,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:44:34,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:44:34" (1/1) ... [2018-04-05 15:44:34,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cafde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:34, skipping insertion in model container [2018-04-05 15:44:34,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:44:34" (1/1) ... [2018-04-05 15:44:34,181 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:44:34,327 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:44:34,777 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:44:34,932 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:44:34,959 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 15:44:35,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35 WrapperNode [2018-04-05 15:44:35,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:44:35,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:44:35,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:44:35,057 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:44:35,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... [2018-04-05 15:44:35,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:44:35,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:44:35,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:44:35,255 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:44:35,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:44:35,591 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:44:35,596 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:44:35,596 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:44:35,596 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:44:35,596 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrspn [2018-04-05 15:44:35,596 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:44:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:44:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:44:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 15:44:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 15:44:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 15:44:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 15:44:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 15:44:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 15:44:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 15:44:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 15:44:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 15:44:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 15:44:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 15:44:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 15:44:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 15:44:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 15:44:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 15:44:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 15:44:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 15:44:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 15:44:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 15:44:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 15:44:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 15:44:35,605 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 15:44:35,606 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 15:44:35,607 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 15:44:35,608 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 15:44:35,609 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 15:44:35,609 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 15:44:35,609 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 15:44:35,609 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 15:44:35,609 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 15:44:35,610 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 15:44:35,611 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:44:35,612 INFO L128 BoogieDeclarations]: Found specification of procedure cstrspn [2018-04-05 15:44:35,613 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:44:35,620 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:44:35,621 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 15:44:35,621 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:44:35,621 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:44:35,621 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:44:35,621 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:44:35,621 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:44:36,799 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:44:36,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:44:36 BoogieIcfgContainer [2018-04-05 15:44:36,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:44:36,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:44:36,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:44:36,812 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:44:36,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:44:34" (1/3) ... [2018-04-05 15:44:36,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bd1edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:44:36, skipping insertion in model container [2018-04-05 15:44:36,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:44:35" (2/3) ... [2018-04-05 15:44:36,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bd1edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:44:36, skipping insertion in model container [2018-04-05 15:44:36,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:44:36" (3/3) ... [2018-04-05 15:44:36,816 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:44:36,831 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:44:36,844 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-05 15:44:36,976 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:44:36,977 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:44:36,977 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:44:36,977 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:44:36,977 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:44:36,978 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:44:36,978 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:44:36,978 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:44:36,978 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:44:36,979 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:44:37,033 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2018-04-05 15:44:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 15:44:37,055 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:37,056 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:37,057 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:37,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1502290826, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:37,134 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:37,261 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:37,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:37,336 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:37,348 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:37,348 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:44:37,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:44:37,428 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:37,471 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 15:44:37,472 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-05 15:44:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:37,513 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:37,618 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:37,619 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:44:37,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 15:44:37,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 15:44:37,656 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 15:44:37,658 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 4 states. [2018-04-05 15:44:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:38,023 INFO L93 Difference]: Finished difference Result 149 states and 161 transitions. [2018-04-05 15:44:38,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 15:44:38,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-05 15:44:38,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:38,056 INFO L225 Difference]: With dead ends: 149 [2018-04-05 15:44:38,056 INFO L226 Difference]: Without dead ends: 87 [2018-04-05 15:44:38,064 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 15:44:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-05 15:44:38,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-04-05 15:44:38,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 15:44:38,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2018-04-05 15:44:38,207 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 19 [2018-04-05 15:44:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:38,208 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2018-04-05 15:44:38,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 15:44:38,208 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2018-04-05 15:44:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 15:44:38,209 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:38,209 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:38,210 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:38,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1502290825, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:38,237 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:38,307 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:38,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:38,365 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:38,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:38,417 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:38,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:38,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-05 15:44:38,661 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:38,682 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:38,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:44:38,684 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:38,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:44:38,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:38,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:38,938 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-05 15:44:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:39,018 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:41,340 WARN L148 SmtUtils]: Spent 2102ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:44:41,430 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:41,431 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-04-05 15:44:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:41,524 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:41,524 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-05 15:44:41,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 15:44:41,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 15:44:41,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-05 15:44:41,533 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand 9 states. [2018-04-05 15:44:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:42,511 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-04-05 15:44:42,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:44:42,511 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-05 15:44:42,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:42,513 INFO L225 Difference]: With dead ends: 87 [2018-04-05 15:44:42,514 INFO L226 Difference]: Without dead ends: 86 [2018-04-05 15:44:42,515 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:44:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-05 15:44:42,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-04-05 15:44:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-05 15:44:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-04-05 15:44:42,525 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 19 [2018-04-05 15:44:42,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:42,526 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-04-05 15:44:42,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 15:44:42,526 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-04-05 15:44:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 15:44:42,527 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:42,527 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:42,527 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:42,527 INFO L82 PathProgramCache]: Analyzing trace with hash 673624654, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:42,589 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:42,640 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:42,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:42,706 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:42,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:42,773 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:44:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:43,018 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:43,179 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:43,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:44:43,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 15:44:43,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 15:44:43,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 15:44:43,181 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 4 states. [2018-04-05 15:44:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:43,426 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2018-04-05 15:44:43,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 15:44:43,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-05 15:44:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:43,429 INFO L225 Difference]: With dead ends: 86 [2018-04-05 15:44:43,429 INFO L226 Difference]: Without dead ends: 85 [2018-04-05 15:44:43,429 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 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 15:44:43,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-05 15:44:43,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-05 15:44:43,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 15:44:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-04-05 15:44:43,439 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 20 [2018-04-05 15:44:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:43,439 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-04-05 15:44:43,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 15:44:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-04-05 15:44:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 15:44:43,440 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:43,440 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:43,440 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:43,441 INFO L82 PathProgramCache]: Analyzing trace with hash 673624655, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:43,467 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:43,562 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:43,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:43,731 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:43,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:43,960 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 15:44:44,238 WARN L148 SmtUtils]: Spent 177ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:44:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:44,354 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:44,513 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:44,513 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 15:44:44,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:44:44,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:44:44,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:44:44,515 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 7 states. [2018-04-05 15:44:44,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:44,897 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2018-04-05 15:44:44,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:44:44,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-05 15:44:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:44,899 INFO L225 Difference]: With dead ends: 85 [2018-04-05 15:44:44,899 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:44:44,900 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:44:44,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:44:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-05 15:44:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-05 15:44:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2018-04-05 15:44:44,912 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 20 [2018-04-05 15:44:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:44,912 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2018-04-05 15:44:44,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:44:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2018-04-05 15:44:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-05 15:44:44,913 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:44,913 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:44,914 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:44,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1318617665, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:44,941 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:45,008 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:45,102 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:45,169 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:45,170 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 15:44:45,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:44:45,170 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:44:45,170 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:44:45,171 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 6 states. [2018-04-05 15:44:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:45,617 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2018-04-05 15:44:45,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:44:45,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-04-05 15:44:45,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:45,619 INFO L225 Difference]: With dead ends: 88 [2018-04-05 15:44:45,619 INFO L226 Difference]: Without dead ends: 86 [2018-04-05 15:44:45,620 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:44:45,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-05 15:44:45,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2018-04-05 15:44:45,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 15:44:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2018-04-05 15:44:45,633 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 29 [2018-04-05 15:44:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:45,638 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2018-04-05 15:44:45,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:44:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2018-04-05 15:44:45,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-05 15:44:45,639 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:45,639 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:45,639 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:45,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1318617664, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:45,667 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:45,703 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:46,056 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:46,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:44:46,094 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:46,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 15:44:46,147 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:46,169 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:44:46,170 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 15:44:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:46,325 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:46,325 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 15:44:46,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 15:44:46,326 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 15:44:46,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-05 15:44:46,326 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 9 states. [2018-04-05 15:44:47,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:47,156 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2018-04-05 15:44:47,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 15:44:47,157 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-04-05 15:44:47,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:47,158 INFO L225 Difference]: With dead ends: 86 [2018-04-05 15:44:47,159 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:44:47,159 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-05 15:44:47,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:44:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-05 15:44:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-05 15:44:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2018-04-05 15:44:47,172 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 29 [2018-04-05 15:44:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:47,173 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2018-04-05 15:44:47,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 15:44:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2018-04-05 15:44:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-05 15:44:47,174 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:47,174 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:47,175 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:47,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1226889509, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:47,197 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:47,247 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:47,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:47,611 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:47,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 15:44:47,647 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:47,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:44:47,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:47,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:44:47,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 15:44:47,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:47,889 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:47,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 15:44:47,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 15:44:47,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 15:44:47,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-05 15:44:47,891 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 9 states. [2018-04-05 15:44:48,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:48,787 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2018-04-05 15:44:48,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 15:44:48,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-04-05 15:44:48,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:48,793 INFO L225 Difference]: With dead ends: 95 [2018-04-05 15:44:48,793 INFO L226 Difference]: Without dead ends: 92 [2018-04-05 15:44:48,793 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-05 15:44:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-04-05 15:44:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2018-04-05 15:44:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-05 15:44:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2018-04-05 15:44:48,808 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 37 [2018-04-05 15:44:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:48,809 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2018-04-05 15:44:48,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 15:44:48,809 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2018-04-05 15:44:48,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-05 15:44:48,810 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:48,810 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:48,811 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:48,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1226889508, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:48,826 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:48,885 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:48,999 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:49,075 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:49,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 15:44:49,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:44:49,076 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:44:49,076 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:44:49,076 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 6 states. [2018-04-05 15:44:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:49,487 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2018-04-05 15:44:49,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:44:49,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-04-05 15:44:49,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:49,489 INFO L225 Difference]: With dead ends: 92 [2018-04-05 15:44:49,489 INFO L226 Difference]: Without dead ends: 89 [2018-04-05 15:44:49,490 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:44:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-05 15:44:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 82. [2018-04-05 15:44:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-05 15:44:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2018-04-05 15:44:49,525 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 37 [2018-04-05 15:44:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:49,526 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2018-04-05 15:44:49,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:44:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2018-04-05 15:44:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-05 15:44:49,527 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:49,527 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:49,527 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:49,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1561613939, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:49,554 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:49,602 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:49,809 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:49,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 15:44:49,861 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:49,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 15:44:49,863 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:49,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:49,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:44:49,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:44:50,193 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:50,208 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:50,223 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:50,386 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_12| Int)) (or (not (= (select |c_#valid| |v_main_#t~malloc13.base_12|) 0)) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_12| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_12| 0)))) is different from false [2018-04-05 15:44:50,402 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_12| Int) (|v_main_#t~malloc12.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_12| 1) |v_main_#t~malloc12.base_11| 0) |v_main_#t~malloc13.base_12| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_12|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_11|)))))) is different from false [2018-04-05 15:44:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:50,574 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:50,574 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:44:50,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:44:50,574 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:44:50,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:44:50,575 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 12 states. [2018-04-05 15:44:50,663 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc13.base_12| Int) (|v_main_#t~malloc12.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_12| 1) |v_main_#t~malloc12.base_11| 0) |v_main_#t~malloc13.base_12| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_12|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_11|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 15:44:52,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:52,421 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2018-04-05 15:44:52,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:44:52,461 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-04-05 15:44:52,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:52,463 INFO L225 Difference]: With dead ends: 149 [2018-04-05 15:44:52,463 INFO L226 Difference]: Without dead ends: 134 [2018-04-05 15:44:52,464 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:44:52,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-04-05 15:44:52,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2018-04-05 15:44:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-04-05 15:44:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 142 transitions. [2018-04-05 15:44:52,526 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 142 transitions. Word has length 42 [2018-04-05 15:44:52,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:52,526 INFO L459 AbstractCegarLoop]: Abstraction has 130 states and 142 transitions. [2018-04-05 15:44:52,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:44:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 142 transitions. [2018-04-05 15:44:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-05 15:44:52,534 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:52,534 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:52,535 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:52,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1809106679, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:52,588 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:52,656 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:52,847 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:52,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 15:44:52,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 15:44:52,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:52,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:52,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:44:52,932 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:44:53,070 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:53,086 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:53,097 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:53,252 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_14| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_14| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_14| 0)) (not (= (select |c_#valid| |v_main_#t~malloc13.base_14|) 0)))) is different from false [2018-04-05 15:44:53,268 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_14| Int) (|v_main_#t~malloc12.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_13| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_13|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_14| 1) |v_main_#t~malloc12.base_13| 0) |v_main_#t~malloc13.base_14| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc13.base_14|)))))) is different from false [2018-04-05 15:44:53,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:53,406 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:53,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:44:53,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:44:53,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:44:53,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:44:53,407 INFO L87 Difference]: Start difference. First operand 130 states and 142 transitions. Second operand 12 states. [2018-04-05 15:44:53,478 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_14| Int) (|v_main_#t~malloc12.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_13| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_13|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_14| 1) |v_main_#t~malloc12.base_13| 0) |v_main_#t~malloc13.base_14| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc13.base_14|))))))) is different from false [2018-04-05 15:44:55,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:55,532 INFO L93 Difference]: Finished difference Result 197 states and 212 transitions. [2018-04-05 15:44:55,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:44:55,533 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-05 15:44:55,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:55,535 INFO L225 Difference]: With dead ends: 197 [2018-04-05 15:44:55,535 INFO L226 Difference]: Without dead ends: 182 [2018-04-05 15:44:55,536 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:44:55,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-05 15:44:55,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 131. [2018-04-05 15:44:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-04-05 15:44:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2018-04-05 15:44:55,562 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 43 [2018-04-05 15:44:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:55,562 INFO L459 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2018-04-05 15:44:55,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:44:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2018-04-05 15:44:55,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-05 15:44:55,564 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:55,564 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:55,565 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:55,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2075013500, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:55,591 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:55,659 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:55,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:55,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 15:44:55,852 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:55,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 15:44:55,854 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:55,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:55,919 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:44:55,919 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:44:56,074 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:56,096 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:56,105 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:56,230 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc13.base_16| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_16| 0) |c_old(#valid)|))) is different from false [2018-04-05 15:44:56,248 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_16| Int) (|v_main_#t~malloc12.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_16| 1) |v_main_#t~malloc12.base_15| 0) |v_main_#t~malloc13.base_16| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_15|))) (not (= (select .cse0 |v_main_#t~malloc13.base_16|) 0))))) is different from false [2018-04-05 15:44:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:56,338 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:56,338 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:44:56,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:44:56,339 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:44:56,339 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:44:56,339 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand 12 states. [2018-04-05 15:44:56,377 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_16| Int) (|v_main_#t~malloc12.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_16| 1) |v_main_#t~malloc12.base_15| 0) |v_main_#t~malloc13.base_16| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_15|))) (not (= (select .cse0 |v_main_#t~malloc13.base_16|) 0)))))) is different from false [2018-04-05 15:44:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:58,109 INFO L93 Difference]: Finished difference Result 197 states and 212 transitions. [2018-04-05 15:44:58,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:44:58,110 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-05 15:44:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:58,111 INFO L225 Difference]: With dead ends: 197 [2018-04-05 15:44:58,112 INFO L226 Difference]: Without dead ends: 182 [2018-04-05 15:44:58,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:44:58,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-05 15:44:58,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 131. [2018-04-05 15:44:58,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-04-05 15:44:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2018-04-05 15:44:58,145 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 43 [2018-04-05 15:44:58,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:58,145 INFO L459 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2018-04-05 15:44:58,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:44:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2018-04-05 15:44:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-05 15:44:58,163 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:58,163 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:58,163 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:44:58,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1419559704, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:58,182 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:58,244 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:58,435 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:58,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 15:44:58,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 15:44:58,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:58,481 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:58,514 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:44:58,514 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:44:58,625 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:58,632 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-05 15:44:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:58,645 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:58,751 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_18| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_18| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_18| 0)) (not (= (select |c_#valid| |v_main_#t~malloc13.base_18|) 0)))) is different from false [2018-04-05 15:44:58,759 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_17| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_17| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_18| 1) |v_main_#t~malloc12.base_17| 0) |v_main_#t~malloc13.base_18| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_18|) 0))))) is different from false [2018-04-05 15:44:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:58,896 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:44:58,896 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:44:58,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:44:58,897 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:44:58,897 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:44:58,898 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand 12 states. [2018-04-05 15:44:58,956 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc12.base_17| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_17| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_18| 1) |v_main_#t~malloc12.base_17| 0) |v_main_#t~malloc13.base_18| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_18|) 0)))))) is different from false [2018-04-05 15:45:00,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:00,625 INFO L93 Difference]: Finished difference Result 135 states and 143 transitions. [2018-04-05 15:45:00,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:45:00,626 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-04-05 15:45:00,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:00,627 INFO L225 Difference]: With dead ends: 135 [2018-04-05 15:45:00,627 INFO L226 Difference]: Without dead ends: 120 [2018-04-05 15:45:00,628 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:45:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-04-05 15:45:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 67. [2018-04-05 15:45:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 15:45:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-04-05 15:45:00,657 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 44 [2018-04-05 15:45:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:00,658 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-04-05 15:45:00,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:45:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-04-05 15:45:00,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-05 15:45:00,663 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:00,663 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:00,663 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:00,664 INFO L82 PathProgramCache]: Analyzing trace with hash -525210978, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:00,699 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:00,775 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:00,806 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:00,885 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:45:00,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:45:00,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-05 15:45:00,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-05 15:45:00,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 15:45:00,886 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 3 states. [2018-04-05 15:45:00,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:00,923 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2018-04-05 15:45:00,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-05 15:45:00,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-04-05 15:45:00,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:00,924 INFO L225 Difference]: With dead ends: 104 [2018-04-05 15:45:00,925 INFO L226 Difference]: Without dead ends: 68 [2018-04-05 15:45:00,929 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 15:45:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-05 15:45:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-04-05 15:45:00,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-05 15:45:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2018-04-05 15:45:00,943 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 48 [2018-04-05 15:45:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:00,944 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2018-04-05 15:45:00,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-05 15:45:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2018-04-05 15:45:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-05 15:45:00,945 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:00,945 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:00,945 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:00,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1345608225, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:00,972 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:01,024 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:01,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:45:01,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:45:01,093 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:01,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:01,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:45:01,185 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 15:45:01,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-05 15:45:01,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:45:01,455 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:45:01,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:45:01,524 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:45:01,524 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-04-05 15:45:01,696 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 17 DAG size of output 17 [2018-04-05 15:45:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:02,163 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:03,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:45:03,341 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:03,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:45:03,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 15:45:03,455 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:03,462 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:03,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:03,497 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 15:45:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:03,580 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:45:03,581 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-05 15:45:03,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-05 15:45:03,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-05 15:45:03,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2018-04-05 15:45:03,582 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 21 states. [2018-04-05 15:45:06,711 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 52 DAG size of output 50 [2018-04-05 15:45:07,030 WARN L151 SmtUtils]: Spent 253ms on a formula simplification. DAG size of input: 56 DAG size of output 53 [2018-04-05 15:45:08,216 WARN L151 SmtUtils]: Spent 165ms on a formula simplification. DAG size of input: 46 DAG size of output 43 [2018-04-05 15:45:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:09,420 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2018-04-05 15:45:09,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-05 15:45:09,420 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 50 [2018-04-05 15:45:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:09,423 INFO L225 Difference]: With dead ends: 146 [2018-04-05 15:45:09,423 INFO L226 Difference]: Without dead ends: 145 [2018-04-05 15:45:09,430 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2018-04-05 15:45:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-04-05 15:45:09,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 81. [2018-04-05 15:45:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-05 15:45:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2018-04-05 15:45:09,493 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 50 [2018-04-05 15:45:09,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:09,493 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2018-04-05 15:45:09,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-05 15:45:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2018-04-05 15:45:09,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-05 15:45:09,494 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:09,495 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:09,495 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:09,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1345608224, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:09,549 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:09,594 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:45:09,748 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:45:09,822 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:45:09,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 15:45:09,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:45:09,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:45:09,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:45:09,824 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 7 states. [2018-04-05 15:45:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:10,282 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2018-04-05 15:45:10,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 15:45:10,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-04-05 15:45:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:10,284 INFO L225 Difference]: With dead ends: 84 [2018-04-05 15:45:10,284 INFO L226 Difference]: Without dead ends: 83 [2018-04-05 15:45:10,284 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:45:10,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-05 15:45:10,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2018-04-05 15:45:10,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-05 15:45:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2018-04-05 15:45:10,313 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 50 [2018-04-05 15:45:10,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:10,314 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2018-04-05 15:45:10,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:45:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2018-04-05 15:45:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-05 15:45:10,315 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:10,315 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:10,315 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:10,315 INFO L82 PathProgramCache]: Analyzing trace with hash 2118655323, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:10,331 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:10,359 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:10,902 WARN L148 SmtUtils]: Spent 236ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-05 15:45:11,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2018-04-05 15:45:11,320 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 22 treesize of output 12 [2018-04-05 15:45:11,321 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:11,562 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 26 treesize of output 19 [2018-04-05 15:45:11,563 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:11,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-04-05 15:45:11,653 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:11,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:45:11,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:11,949 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:30, output treesize:8 [2018-04-05 15:45:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:12,090 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:12,912 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:45:12,912 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 17 [2018-04-05 15:45:12,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-05 15:45:12,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-05 15:45:12,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-04-05 15:45:12,913 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 17 states. [2018-04-05 15:45:13,869 WARN L151 SmtUtils]: Spent 212ms on a formula simplification. DAG size of input: 26 DAG size of output 26 [2018-04-05 15:45:14,101 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 26 DAG size of output 23 [2018-04-05 15:45:14,807 WARN L151 SmtUtils]: Spent 171ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 15:45:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:15,350 INFO L93 Difference]: Finished difference Result 139 states and 149 transitions. [2018-04-05 15:45:15,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 15:45:15,350 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 51 [2018-04-05 15:45:15,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:15,351 INFO L225 Difference]: With dead ends: 139 [2018-04-05 15:45:15,351 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:45:15,352 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=184, Invalid=686, Unknown=0, NotChecked=0, Total=870 [2018-04-05 15:45:15,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:45:15,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2018-04-05 15:45:15,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-05 15:45:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-04-05 15:45:15,373 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 51 [2018-04-05 15:45:15,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:15,373 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-04-05 15:45:15,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-05 15:45:15,373 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-04-05 15:45:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 15:45:15,374 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:15,374 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:15,374 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:15,375 INFO L82 PathProgramCache]: Analyzing trace with hash -97068296, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:15,396 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:15,430 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:45:15,595 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:45:15,649 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:45:15,649 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 15:45:15,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:45:15,650 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:45:15,650 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:45:15,650 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 7 states. [2018-04-05 15:45:15,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:15,912 INFO L93 Difference]: Finished difference Result 79 states and 83 transitions. [2018-04-05 15:45:15,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 15:45:15,914 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-04-05 15:45:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:15,914 INFO L225 Difference]: With dead ends: 79 [2018-04-05 15:45:15,915 INFO L226 Difference]: Without dead ends: 78 [2018-04-05 15:45:15,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:45:15,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-04-05 15:45:15,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-04-05 15:45:15,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-05 15:45:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2018-04-05 15:45:15,929 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 53 [2018-04-05 15:45:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:15,929 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2018-04-05 15:45:15,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:45:15,929 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2018-04-05 15:45:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 15:45:15,937 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:15,938 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:15,938 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:15,938 INFO L82 PathProgramCache]: Analyzing trace with hash -97068295, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:15,949 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:15,977 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:15,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:45:15,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,026 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 15:45:16,119 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:45:16,124 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:45:16,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:45:16,125 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,147 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 15:45:16,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:45:16,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:45:16,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:45:16,337 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 15:45:16,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-05 15:45:16,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:45:16,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,637 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:16,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 15:45:16,691 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 15:45:19,764 WARN L148 SmtUtils]: Spent 1181ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:45:20,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 53 [2018-04-05 15:45:20,103 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 41 treesize of output 33 [2018-04-05 15:45:20,103 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:20,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-04-05 15:45:20,403 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 15:45:20,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2018-04-05 15:45:20,904 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-04-05 15:45:21,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-04-05 15:45:21,383 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:21,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-04-05 15:45:21,387 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:21,819 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 23 treesize of output 16 [2018-04-05 15:45:21,820 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:21,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-04-05 15:45:21,826 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:22,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 43 [2018-04-05 15:45:22,295 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 4 xjuncts. [2018-04-05 15:45:22,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2018-04-05 15:45:22,886 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-05 15:45:23,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-04-05 15:45:23,446 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:23,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-04-05 15:45:23,450 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:23,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-04-05 15:45:23,455 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:23,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-05 15:45:24,784 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-05 15:45:24,807 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:63, output treesize:66 [2018-04-05 15:45:25,096 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 15:45:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:25,511 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:27,402 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:45:27,842 WARN L148 SmtUtils]: Spent 101ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:45:29,370 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 39 DAG size of output 33 [2018-04-05 15:45:29,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-05 15:45:29,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:29,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-04-05 15:45:29,726 WARN L151 SmtUtils]: Spent 245ms on a formula simplification. DAG size of input: 36 DAG size of output 31 [2018-04-05 15:45:29,729 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 24 treesize of output 16 [2018-04-05 15:45:29,730 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:29,821 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 15:45:29,830 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:29,865 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:29,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:29,935 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:7 [2018-04-05 15:45:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:30,212 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:45:30,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2018-04-05 15:45:30,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-05 15:45:30,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-05 15:45:30,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1179, Unknown=0, NotChecked=0, Total=1332 [2018-04-05 15:45:30,214 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand 37 states. [2018-04-05 15:45:31,555 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 15:45:32,869 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 64 DAG size of output 56 [2018-04-05 15:45:33,208 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 66 DAG size of output 58 [2018-04-05 15:45:33,528 WARN L151 SmtUtils]: Spent 180ms on a formula simplification. DAG size of input: 64 DAG size of output 56 [2018-04-05 15:45:34,004 WARN L151 SmtUtils]: Spent 131ms on a formula simplification. DAG size of input: 70 DAG size of output 62 [2018-04-05 15:45:38,209 WARN L151 SmtUtils]: Spent 3951ms on a formula simplification. DAG size of input: 77 DAG size of output 69 [2018-04-05 15:45:38,637 WARN L151 SmtUtils]: Spent 279ms on a formula simplification. DAG size of input: 77 DAG size of output 66 [2018-04-05 15:45:39,122 WARN L151 SmtUtils]: Spent 251ms on a formula simplification. DAG size of input: 72 DAG size of output 64 [2018-04-05 15:45:41,489 WARN L151 SmtUtils]: Spent 217ms on a formula simplification. DAG size of input: 70 DAG size of output 62 [2018-04-05 15:45:41,945 WARN L151 SmtUtils]: Spent 202ms on a formula simplification. DAG size of input: 82 DAG size of output 66 [2018-04-05 15:45:42,327 WARN L151 SmtUtils]: Spent 223ms on a formula simplification. DAG size of input: 82 DAG size of output 69 [2018-04-05 15:45:43,153 WARN L151 SmtUtils]: Spent 718ms on a formula simplification. DAG size of input: 73 DAG size of output 65 [2018-04-05 15:45:43,456 WARN L151 SmtUtils]: Spent 167ms on a formula simplification. DAG size of input: 79 DAG size of output 71 [2018-04-05 15:45:43,800 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 59 DAG size of output 55 [2018-04-05 15:45:44,141 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 52 DAG size of output 48 [2018-04-05 15:45:45,337 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 67 DAG size of output 61 [2018-04-05 15:45:46,223 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 67 DAG size of output 61 [2018-04-05 15:45:46,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:46,228 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2018-04-05 15:45:46,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-05 15:45:46,231 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 53 [2018-04-05 15:45:46,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:46,233 INFO L225 Difference]: With dead ends: 168 [2018-04-05 15:45:46,233 INFO L226 Difference]: Without dead ends: 167 [2018-04-05 15:45:46,234 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=581, Invalid=3201, Unknown=0, NotChecked=0, Total=3782 [2018-04-05 15:45:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-04-05 15:45:46,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 123. [2018-04-05 15:45:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-05 15:45:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 130 transitions. [2018-04-05 15:45:46,277 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 130 transitions. Word has length 53 [2018-04-05 15:45:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:46,278 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 130 transitions. [2018-04-05 15:45:46,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-05 15:45:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 130 transitions. [2018-04-05 15:45:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-05 15:45:46,280 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:46,280 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:46,280 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:46,280 INFO L82 PathProgramCache]: Analyzing trace with hash -618442075, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:46,314 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:46,373 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:46,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:45:46,397 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:46,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:46,423 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 15:45:46,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 15:45:46,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:45:46,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:46,557 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:46,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:46,563 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-05 15:45:46,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 15:45:46,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 15:45:46,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:45:46,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:45:46,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:45:46,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-05 15:45:47,432 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 16 DAG size of output 15 [2018-04-05 15:45:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:47,809 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:45:49,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:45:49,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 15:45:49,818 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:49,825 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:49,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:45:49,856 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:35 [2018-04-05 15:45:50,142 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 18 DAG size of output 16 [2018-04-05 15:45:50,395 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:45:50,432 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:45:50,433 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-04-05 15:45:50,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-05 15:45:50,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-05 15:45:50,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2018-04-05 15:45:50,437 INFO L87 Difference]: Start difference. First operand 123 states and 130 transitions. Second operand 30 states. [2018-04-05 15:45:52,003 WARN L151 SmtUtils]: Spent 167ms on a formula simplification. DAG size of input: 36 DAG size of output 34 [2018-04-05 15:45:52,380 WARN L151 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 40 DAG size of output 37 [2018-04-05 15:45:52,596 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 32 DAG size of output 28 [2018-04-05 15:45:52,928 WARN L151 SmtUtils]: Spent 146ms on a formula simplification. DAG size of input: 44 DAG size of output 38 [2018-04-05 15:45:53,253 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 42 DAG size of output 39 [2018-04-05 15:45:53,796 WARN L151 SmtUtils]: Spent 238ms on a formula simplification. DAG size of input: 35 DAG size of output 35 [2018-04-05 15:45:54,186 WARN L151 SmtUtils]: Spent 275ms on a formula simplification. DAG size of input: 39 DAG size of output 38 [2018-04-05 15:45:54,775 WARN L151 SmtUtils]: Spent 173ms on a formula simplification. DAG size of input: 43 DAG size of output 42 [2018-04-05 15:45:55,114 WARN L151 SmtUtils]: Spent 206ms on a formula simplification. DAG size of input: 44 DAG size of output 42 [2018-04-05 15:45:55,331 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 15:45:55,677 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 15:45:56,093 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 44 DAG size of output 39 [2018-04-05 15:45:56,360 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 15:45:56,818 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 48 DAG size of output 43 [2018-04-05 15:45:57,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:45:57,153 INFO L93 Difference]: Finished difference Result 195 states and 204 transitions. [2018-04-05 15:45:57,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-05 15:45:57,154 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 63 [2018-04-05 15:45:57,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:45:57,155 INFO L225 Difference]: With dead ends: 195 [2018-04-05 15:45:57,155 INFO L226 Difference]: Without dead ends: 194 [2018-04-05 15:45:57,156 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=492, Invalid=1958, Unknown=0, NotChecked=0, Total=2450 [2018-04-05 15:45:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-04-05 15:45:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 92. [2018-04-05 15:45:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-05 15:45:57,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2018-04-05 15:45:57,214 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 63 [2018-04-05 15:45:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:45:57,214 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2018-04-05 15:45:57,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-05 15:45:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2018-04-05 15:45:57,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-05 15:45:57,215 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:45:57,215 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:45:57,216 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:45:57,216 INFO L82 PathProgramCache]: Analyzing trace with hash -2134876878, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:45:57,241 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:45:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:45:57,300 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:45:57,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:45:57,320 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,341 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 15:45:57,431 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:45:57,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:45:57,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:45:57,439 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,463 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 15:45:57,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:45:57,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:45:57,596 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,606 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:45:57,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 15:45:57,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-05 15:45:57,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:45:57,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:45:57,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-05 15:45:57,805 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-05 15:46:00,799 WARN L148 SmtUtils]: Spent 1591ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 15:46:01,499 WARN L148 SmtUtils]: Spent 284ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:46:02,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 46 [2018-04-05 15:46:02,875 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 29 treesize of output 23 [2018-04-05 15:46:02,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:46:02,941 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:46:02,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2018-04-05 15:46:02,978 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 15:46:03,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:46:03,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:46:03,274 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:78, output treesize:51 [2018-04-05 15:46:03,604 WARN L151 SmtUtils]: Spent 209ms on a formula simplification. DAG size of input: 21 DAG size of output 20 [2018-04-05 15:46:04,515 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:46:04,515 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:46:08,255 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 15:46:09,018 WARN L148 SmtUtils]: Spent 139ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:46:09,908 WARN L148 SmtUtils]: Spent 199ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:46:10,313 WARN L148 SmtUtils]: Spent 184ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:46:11,254 WARN L148 SmtUtils]: Spent 316ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:46:12,283 WARN L148 SmtUtils]: Spent 323ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:46:13,125 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 41 DAG size of output 27 [2018-04-05 15:46:16,391 WARN L151 SmtUtils]: Spent 636ms on a formula simplification. DAG size of input: 47 DAG size of output 37 [2018-04-05 15:46:16,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-05 15:46:16,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:46:16,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 44 [2018-04-05 15:46:17,606 WARN L151 SmtUtils]: Spent 908ms on a formula simplification. DAG size of input: 52 DAG size of output 43 [2018-04-05 15:46:17,617 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 41 treesize of output 33 [2018-04-05 15:46:17,618 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:46:18,028 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 15:46:18,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2018-04-05 15:46:18,054 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:46:18,302 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:46:18,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:46:18,470 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:100, output treesize:24 [2018-04-05 15:46:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:46:18,864 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:46:18,864 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 26] total 54 [2018-04-05 15:46:18,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-05 15:46:18,865 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-05 15:46:18,866 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2703, Unknown=0, NotChecked=0, Total=2970 [2018-04-05 15:46:18,866 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand 55 states. [2018-04-05 15:46:21,945 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 15:46:23,113 WARN L148 SmtUtils]: Spent 194ms on a formula simplification that was a NOOP. DAG size: 63 [2018-04-05 15:46:23,665 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 68 [2018-04-05 15:46:24,134 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 71 [2018-04-05 15:46:24,559 WARN L148 SmtUtils]: Spent 136ms on a formula simplification that was a NOOP. DAG size: 73 [2018-04-05 15:46:24,949 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 71 [2018-04-05 15:46:25,370 WARN L148 SmtUtils]: Spent 141ms on a formula simplification that was a NOOP. DAG size: 75 [2018-04-05 15:46:30,553 WARN L151 SmtUtils]: Spent 4759ms on a formula simplification. DAG size of input: 82 DAG size of output 82 [2018-04-05 15:46:31,224 WARN L151 SmtUtils]: Spent 461ms on a formula simplification. DAG size of input: 82 DAG size of output 79 [2018-04-05 15:46:31,705 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 77 [2018-04-05 15:46:32,066 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 75 [2018-04-05 15:46:32,740 WARN L151 SmtUtils]: Spent 314ms on a formula simplification. DAG size of input: 80 DAG size of output 76 [2018-04-05 15:46:33,619 WARN L151 SmtUtils]: Spent 610ms on a formula simplification. DAG size of input: 96 DAG size of output 91 [2018-04-05 15:46:34,195 WARN L151 SmtUtils]: Spent 316ms on a formula simplification. DAG size of input: 81 DAG size of output 77 [2018-04-05 15:46:34,748 WARN L151 SmtUtils]: Spent 298ms on a formula simplification. DAG size of input: 79 DAG size of output 75 [2018-04-05 15:46:35,684 WARN L151 SmtUtils]: Spent 725ms on a formula simplification. DAG size of input: 94 DAG size of output 90 [2018-04-05 15:46:36,840 WARN L151 SmtUtils]: Spent 828ms on a formula simplification. DAG size of input: 100 DAG size of output 94 [2018-04-05 15:46:39,832 WARN L151 SmtUtils]: Spent 2043ms on a formula simplification. DAG size of input: 104 DAG size of output 91 [2018-04-05 15:46:40,822 WARN L151 SmtUtils]: Spent 688ms on a formula simplification. DAG size of input: 104 DAG size of output 97 [2018-04-05 15:46:45,526 WARN L151 SmtUtils]: Spent 2362ms on a formula simplification. DAG size of input: 89 DAG size of output 77 [2018-04-05 15:46:46,602 WARN L151 SmtUtils]: Spent 675ms on a formula simplification. DAG size of input: 96 DAG size of output 91 [2018-04-05 15:46:47,392 WARN L151 SmtUtils]: Spent 296ms on a formula simplification. DAG size of input: 92 DAG size of output 79 [2018-04-05 15:46:48,823 WARN L151 SmtUtils]: Spent 1101ms on a formula simplification. DAG size of input: 94 DAG size of output 81 [2018-04-05 15:46:49,712 WARN L151 SmtUtils]: Spent 635ms on a formula simplification. DAG size of input: 100 DAG size of output 95 [2018-04-05 15:46:54,332 WARN L151 SmtUtils]: Spent 2415ms on a formula simplification. DAG size of input: 92 DAG size of output 80 [2018-04-05 15:46:54,750 WARN L151 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 75 DAG size of output 72 [2018-04-05 15:46:55,212 WARN L151 SmtUtils]: Spent 296ms on a formula simplification. DAG size of input: 84 DAG size of output 80 [2018-04-05 15:46:55,766 WARN L151 SmtUtils]: Spent 299ms on a formula simplification. DAG size of input: 94 DAG size of output 81 [2018-04-05 15:46:56,277 WARN L151 SmtUtils]: Spent 356ms on a formula simplification. DAG size of input: 98 DAG size of output 94 [2018-04-05 15:46:56,948 WARN L151 SmtUtils]: Spent 454ms on a formula simplification. DAG size of input: 99 DAG size of output 83 [2018-04-05 15:46:57,432 WARN L148 SmtUtils]: Spent 141ms on a formula simplification that was a NOOP. DAG size: 81 [2018-04-05 15:46:58,481 WARN L151 SmtUtils]: Spent 366ms on a formula simplification. DAG size of input: 68 DAG size of output 66 [2018-04-05 15:46:59,185 WARN L151 SmtUtils]: Spent 396ms on a formula simplification. DAG size of input: 93 DAG size of output 89 [2018-04-05 15:46:59,709 WARN L148 SmtUtils]: Spent 321ms on a formula simplification that was a NOOP. DAG size: 75 [2018-04-05 15:47:00,546 WARN L148 SmtUtils]: Spent 377ms on a formula simplification that was a NOOP. DAG size: 79 [2018-04-05 15:47:03,742 WARN L151 SmtUtils]: Spent 2521ms on a formula simplification. DAG size of input: 105 DAG size of output 82 [2018-04-05 15:47:04,378 WARN L148 SmtUtils]: Spent 236ms on a formula simplification that was a NOOP. DAG size: 83 [2018-04-05 15:47:05,270 WARN L151 SmtUtils]: Spent 653ms on a formula simplification. DAG size of input: 91 DAG size of output 87 [2018-04-05 15:47:06,914 WARN L151 SmtUtils]: Spent 1318ms on a formula simplification. DAG size of input: 106 DAG size of output 84 [2018-04-05 15:47:07,313 WARN L148 SmtUtils]: Spent 176ms on a formula simplification that was a NOOP. DAG size: 79 [2018-04-05 15:47:09,874 WARN L151 SmtUtils]: Spent 321ms on a formula simplification. DAG size of input: 96 DAG size of output 80 [2018-04-05 15:47:10,463 WARN L151 SmtUtils]: Spent 397ms on a formula simplification. DAG size of input: 114 DAG size of output 95 [2018-04-05 15:47:11,243 WARN L151 SmtUtils]: Spent 566ms on a formula simplification. DAG size of input: 95 DAG size of output 90 [2018-04-05 15:47:12,128 WARN L151 SmtUtils]: Spent 541ms on a formula simplification. DAG size of input: 111 DAG size of output 92 [2018-04-05 15:47:13,097 WARN L151 SmtUtils]: Spent 696ms on a formula simplification. DAG size of input: 99 DAG size of output 93 [2018-04-05 15:47:15,753 WARN L151 SmtUtils]: Spent 427ms on a formula simplification. DAG size of input: 93 DAG size of output 77 [2018-04-05 15:47:16,611 WARN L151 SmtUtils]: Spent 327ms on a formula simplification. DAG size of input: 90 DAG size of output 86 [2018-04-05 15:47:17,918 WARN L151 SmtUtils]: Spent 518ms on a formula simplification. DAG size of input: 90 DAG size of output 88 [2018-04-05 15:47:18,787 WARN L151 SmtUtils]: Spent 376ms on a formula simplification. DAG size of input: 96 DAG size of output 80 [2018-04-05 15:47:21,474 WARN L151 SmtUtils]: Spent 2356ms on a formula simplification. DAG size of input: 98 DAG size of output 83 [2018-04-05 15:47:21,918 WARN L148 SmtUtils]: Spent 226ms on a formula simplification that was a NOOP. DAG size: 83 [2018-04-05 15:47:22,692 WARN L148 SmtUtils]: Spent 224ms on a formula simplification that was a NOOP. DAG size: 94 [2018-04-05 15:47:23,203 WARN L151 SmtUtils]: Spent 306ms on a formula simplification. DAG size of input: 96 DAG size of output 80 [2018-04-05 15:47:23,584 WARN L151 SmtUtils]: Spent 169ms on a formula simplification. DAG size of input: 60 DAG size of output 57 [2018-04-05 15:47:23,879 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 71 [2018-04-05 15:47:24,420 WARN L151 SmtUtils]: Spent 256ms on a formula simplification. DAG size of input: 83 DAG size of output 79 [2018-04-05 15:47:24,980 WARN L151 SmtUtils]: Spent 310ms on a formula simplification. DAG size of input: 98 DAG size of output 82 [2018-04-05 15:47:25,351 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 67 DAG size of output 64 [2018-04-05 15:47:26,148 WARN L151 SmtUtils]: Spent 397ms on a formula simplification. DAG size of input: 97 DAG size of output 94 [2018-04-05 15:47:29,254 WARN L151 SmtUtils]: Spent 2803ms on a formula simplification. DAG size of input: 103 DAG size of output 84 [2018-04-05 15:47:29,584 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 64 [2018-04-05 15:47:30,613 WARN L151 SmtUtils]: Spent 265ms on a formula simplification. DAG size of input: 79 DAG size of output 75 [2018-04-05 15:47:31,253 WARN L151 SmtUtils]: Spent 376ms on a formula simplification. DAG size of input: 86 DAG size of output 82 [2018-04-05 15:47:31,746 WARN L151 SmtUtils]: Spent 295ms on a formula simplification. DAG size of input: 92 DAG size of output 88 [2018-04-05 15:47:32,455 WARN L151 SmtUtils]: Spent 413ms on a formula simplification. DAG size of input: 106 DAG size of output 82 [2018-04-05 15:47:33,531 WARN L151 SmtUtils]: Spent 689ms on a formula simplification. DAG size of input: 93 DAG size of output 88 [2018-04-05 15:47:34,712 WARN L151 SmtUtils]: Spent 781ms on a formula simplification. DAG size of input: 107 DAG size of output 83 [2018-04-05 15:47:38,849 WARN L151 SmtUtils]: Spent 1758ms on a formula simplification. DAG size of input: 99 DAG size of output 82 [2018-04-05 15:47:41,638 WARN L151 SmtUtils]: Spent 2525ms on a formula simplification. DAG size of input: 117 DAG size of output 97 [2018-04-05 15:47:42,466 WARN L151 SmtUtils]: Spent 485ms on a formula simplification. DAG size of input: 97 DAG size of output 91 [2018-04-05 15:47:43,811 WARN L151 SmtUtils]: Spent 846ms on a formula simplification. DAG size of input: 101 DAG size of output 94 [2018-04-05 15:47:44,790 WARN L151 SmtUtils]: Spent 504ms on a formula simplification. DAG size of input: 92 DAG size of output 87 [2018-04-05 15:47:45,690 WARN L151 SmtUtils]: Spent 405ms on a formula simplification. DAG size of input: 96 DAG size of output 91 [2018-04-05 15:47:46,543 WARN L151 SmtUtils]: Spent 448ms on a formula simplification. DAG size of input: 75 DAG size of output 72 [2018-04-05 15:47:47,222 WARN L151 SmtUtils]: Spent 333ms on a formula simplification. DAG size of input: 85 DAG size of output 80 [2018-04-05 15:47:48,290 WARN L151 SmtUtils]: Spent 445ms on a formula simplification. DAG size of input: 99 DAG size of output 94 [2018-04-05 15:47:49,136 WARN L151 SmtUtils]: Spent 359ms on a formula simplification. DAG size of input: 94 DAG size of output 89 [2018-04-05 15:47:49,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:47:49,327 INFO L93 Difference]: Finished difference Result 333 states and 348 transitions. [2018-04-05 15:47:49,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-04-05 15:47:49,328 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 77 [2018-04-05 15:47:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:47:49,330 INFO L225 Difference]: With dead ends: 333 [2018-04-05 15:47:49,330 INFO L226 Difference]: Without dead ends: 332 [2018-04-05 15:47:49,339 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5193 ImplicationChecksByTransitivity, 98.8s TimeCoverageRelationStatistics Valid=3523, Invalid=16212, Unknown=5, NotChecked=0, Total=19740 [2018-04-05 15:47:49,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-04-05 15:47:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 184. [2018-04-05 15:47:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-04-05 15:47:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 194 transitions. [2018-04-05 15:47:49,405 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 194 transitions. Word has length 77 [2018-04-05 15:47:49,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:47:49,406 INFO L459 AbstractCegarLoop]: Abstraction has 184 states and 194 transitions. [2018-04-05 15:47:49,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-05 15:47:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 194 transitions. [2018-04-05 15:47:49,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-04-05 15:47:49,407 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:47:49,408 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:47:49,408 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-05 15:47:49,408 INFO L82 PathProgramCache]: Analyzing trace with hash -597916068, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:47:49,418 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:47:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:47:49,466 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:47:49,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:47:49,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:47:49,525 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:47:49,652 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:47:49,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:47:49,659 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:47:49,733 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:47:49,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:47:49,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,774 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-05 15:47:49,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-05 15:47:49,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-05 15:47:49,923 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:47:49,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:47:49,980 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-05 15:47:50,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-05 15:47:50,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-05 15:47:50,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:50,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:47:50,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-05 15:47:50,163 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-05 15:47:54,035 WARN L148 SmtUtils]: Spent 2205ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:47:54,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 57 [2018-04-05 15:47:54,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-04-05 15:47:54,424 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:54,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-04-05 15:47:54,701 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:54,938 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 35 treesize of output 28 [2018-04-05 15:47:54,939 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:55,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 39 [2018-04-05 15:47:55,272 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-04-05 15:47:55,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-04-05 15:47:55,684 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-05 15:47:56,098 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 29 treesize of output 21 [2018-04-05 15:47:56,099 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:56,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-04-05 15:47:56,106 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-05 15:47:56,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2018-04-05 15:47:56,516 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-05 15:47:57,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-05 15:47:57,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-05 15:47:57,662 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:67, output treesize:78 [2018-04-05 15:47:57,997 WARN L151 SmtUtils]: Spent 219ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 15:47:58,550 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:47:58,550 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:48:00,714 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:48:01,295 WARN L148 SmtUtils]: Spent 136ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:48:03,582 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 40 DAG size of output 34 [2018-04-05 15:48:03,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-04-05 15:48:03,878 WARN L151 SmtUtils]: Spent 250ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 15:48:03,881 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 24 treesize of output 16 [2018-04-05 15:48:03,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:48:03,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-04-05 15:48:03,958 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:48:04,032 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 15:48:04,033 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:48:04,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:48:04,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:48:04,134 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:73, output treesize:43 [2018-04-05 15:48:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:48:05,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:48:05,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 43 [2018-04-05 15:48:05,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-04-05 15:48:05,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-04-05 15:48:05,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1694, Unknown=1, NotChecked=0, Total=1892 [2018-04-05 15:48:05,415 INFO L87 Difference]: Start difference. First operand 184 states and 194 transitions. Second operand 44 states. [2018-04-05 15:48:06,822 WARN L148 SmtUtils]: Spent 185ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 15:48:08,608 WARN L151 SmtUtils]: Spent 275ms on a formula simplification. DAG size of input: 51 DAG size of output 43 [2018-04-05 15:48:10,969 WARN L151 SmtUtils]: Spent 2161ms on a formula simplification. DAG size of input: 81 DAG size of output 48 [2018-04-05 15:48:11,433 WARN L151 SmtUtils]: Spent 225ms on a formula simplification. DAG size of input: 92 DAG size of output 62 [2018-04-05 15:48:13,981 WARN L151 SmtUtils]: Spent 2311ms on a formula simplification. DAG size of input: 103 DAG size of output 68 [2018-04-05 15:48:14,893 WARN L151 SmtUtils]: Spent 540ms on a formula simplification. DAG size of input: 92 DAG size of output 62 [2018-04-05 15:48:15,782 WARN L151 SmtUtils]: Spent 642ms on a formula simplification. DAG size of input: 96 DAG size of output 71 [2018-04-05 15:48:16,755 WARN L151 SmtUtils]: Spent 631ms on a formula simplification. DAG size of input: 100 DAG size of output 74 [2018-04-05 15:48:17,361 WARN L151 SmtUtils]: Spent 359ms on a formula simplification. DAG size of input: 94 DAG size of output 69 [2018-04-05 15:48:18,271 WARN L151 SmtUtils]: Spent 458ms on a formula simplification. DAG size of input: 98 DAG size of output 75 [2018-04-05 15:48:18,753 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 60 DAG size of output 48 [2018-04-05 15:48:19,604 WARN L151 SmtUtils]: Spent 588ms on a formula simplification. DAG size of input: 78 DAG size of output 60 [2018-04-05 15:48:20,552 WARN L151 SmtUtils]: Spent 491ms on a formula simplification. DAG size of input: 75 DAG size of output 61 [2018-04-05 15:48:23,133 WARN L151 SmtUtils]: Spent 290ms on a formula simplification. DAG size of input: 56 DAG size of output 48 [2018-04-05 15:48:23,877 WARN L151 SmtUtils]: Spent 329ms on a formula simplification. DAG size of input: 59 DAG size of output 51 [2018-04-05 15:48:24,805 WARN L151 SmtUtils]: Spent 644ms on a formula simplification. DAG size of input: 61 DAG size of output 53 [2018-04-05 15:48:25,490 WARN L151 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 59 DAG size of output 51 [2018-04-05 15:48:25,977 WARN L151 SmtUtils]: Spent 277ms on a formula simplification. DAG size of input: 65 DAG size of output 57 [2018-04-05 15:48:27,144 WARN L151 SmtUtils]: Spent 902ms on a formula simplification. DAG size of input: 72 DAG size of output 64 [2018-04-05 15:48:28,119 WARN L151 SmtUtils]: Spent 609ms on a formula simplification. DAG size of input: 72 DAG size of output 61 [2018-04-05 15:48:29,067 WARN L151 SmtUtils]: Spent 212ms on a formula simplification. DAG size of input: 67 DAG size of output 59 [2018-04-05 15:48:30,360 WARN L151 SmtUtils]: Spent 444ms on a formula simplification. DAG size of input: 65 DAG size of output 57 [2018-04-05 15:48:31,644 WARN L151 SmtUtils]: Spent 582ms on a formula simplification. DAG size of input: 75 DAG size of output 61 [2018-04-05 15:48:32,414 WARN L151 SmtUtils]: Spent 540ms on a formula simplification. DAG size of input: 75 DAG size of output 62 [2018-04-05 15:48:33,245 WARN L151 SmtUtils]: Spent 415ms on a formula simplification. DAG size of input: 68 DAG size of output 58 [2018-04-05 15:48:34,171 WARN L151 SmtUtils]: Spent 592ms on a formula simplification. DAG size of input: 85 DAG size of output 70 [2018-04-05 15:48:36,458 WARN L151 SmtUtils]: Spent 1988ms on a formula simplification. DAG size of input: 75 DAG size of output 61 [2018-04-05 15:48:37,224 WARN L151 SmtUtils]: Spent 550ms on a formula simplification. DAG size of input: 58 DAG size of output 49 [2018-04-05 15:48:37,870 WARN L151 SmtUtils]: Spent 218ms on a formula simplification. DAG size of input: 61 DAG size of output 52 [2018-04-05 15:48:38,453 WARN L151 SmtUtils]: Spent 314ms on a formula simplification. DAG size of input: 63 DAG size of output 54 [2018-04-05 15:48:39,021 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 61 DAG size of output 52 [2018-04-05 15:48:39,603 WARN L151 SmtUtils]: Spent 305ms on a formula simplification. DAG size of input: 67 DAG size of output 58 [2018-04-05 15:48:41,026 WARN L151 SmtUtils]: Spent 1070ms on a formula simplification. DAG size of input: 74 DAG size of output 65 [2018-04-05 15:48:41,804 WARN L151 SmtUtils]: Spent 544ms on a formula simplification. DAG size of input: 74 DAG size of output 61 [2018-04-05 15:48:42,596 WARN L151 SmtUtils]: Spent 439ms on a formula simplification. DAG size of input: 69 DAG size of output 60 [2018-04-05 15:48:43,264 WARN L151 SmtUtils]: Spent 398ms on a formula simplification. DAG size of input: 67 DAG size of output 58 [2018-04-05 15:48:44,197 WARN L151 SmtUtils]: Spent 589ms on a formula simplification. DAG size of input: 76 DAG size of output 61 [2018-04-05 15:48:44,945 WARN L151 SmtUtils]: Spent 422ms on a formula simplification. DAG size of input: 76 DAG size of output 60 [2018-04-05 15:48:45,693 WARN L151 SmtUtils]: Spent 248ms on a formula simplification. DAG size of input: 69 DAG size of output 57 [2018-04-05 15:48:46,347 WARN L151 SmtUtils]: Spent 444ms on a formula simplification. DAG size of input: 86 DAG size of output 70 [2018-04-05 15:48:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:48:46,402 INFO L93 Difference]: Finished difference Result 296 states and 310 transitions. [2018-04-05 15:48:46,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-05 15:48:46,402 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 90 [2018-04-05 15:48:46,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:48:46,403 INFO L225 Difference]: With dead ends: 296 [2018-04-05 15:48:46,403 INFO L226 Difference]: Without dead ends: 0 [2018-04-05 15:48:46,414 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 46.5s TimeCoverageRelationStatistics Valid=1413, Invalid=6417, Unknown=2, NotChecked=0, Total=7832 [2018-04-05 15:48:46,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-05 15:48:46,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-05 15:48:46,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-05 15:48:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-05 15:48:46,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2018-04-05 15:48:46,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:48:46,415 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-05 15:48:46,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-04-05 15:48:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-05 15:48:46,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-05 15:48:46,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-05 15:48:46,579 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 139 DAG size of output 137 [2018-04-05 15:48:48,007 WARN L151 SmtUtils]: Spent 1386ms on a formula simplification. DAG size of input: 349 DAG size of output 344 [2018-04-05 15:48:48,308 WARN L151 SmtUtils]: Spent 297ms on a formula simplification. DAG size of input: 314 DAG size of output 312 [2018-04-05 15:48:50,768 WARN L151 SmtUtils]: Spent 2456ms on a formula simplification. DAG size of input: 184 DAG size of output 1 [2018-04-05 15:48:51,866 WARN L151 SmtUtils]: Spent 1096ms on a formula simplification. DAG size of input: 157 DAG size of output 73 [2018-04-05 15:49:59,878 WARN L151 SmtUtils]: Spent 68007ms on a formula simplification. DAG size of input: 390 DAG size of output 164 [2018-04-05 15:50:00,019 WARN L151 SmtUtils]: Spent 139ms on a formula simplification. DAG size of input: 123 DAG size of output 3 Received shutdown request... [2018-04-05 15:50:10,190 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-04-05 15:50:10,192 INFO L168 Benchmark]: Toolchain (without parser) took 336088.37 ms. Allocated memory was 302.0 MB in the beginning and 556.3 MB in the end (delta: 254.3 MB). Free memory was 240.5 MB in the beginning and 338.7 MB in the end (delta: -98.3 MB). Peak memory consumption was 222.7 MB. Max. memory is 5.3 GB. [2018-04-05 15:50:10,193 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 264.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 15:50:10,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 938.33 ms. Allocated memory is still 302.0 MB. Free memory was 239.5 MB in the beginning and 215.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-05 15:50:10,195 INFO L168 Benchmark]: Boogie Preprocessor took 197.38 ms. Allocated memory is still 302.0 MB. Free memory was 215.5 MB in the beginning and 213.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-05 15:50:10,195 INFO L168 Benchmark]: RCFGBuilder took 1547.76 ms. Allocated memory was 302.0 MB in the beginning and 462.9 MB in the end (delta: 161.0 MB). Free memory was 213.5 MB in the beginning and 395.4 MB in the end (delta: -181.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-04-05 15:50:10,195 INFO L168 Benchmark]: TraceAbstraction took 333387.94 ms. Allocated memory was 462.9 MB in the beginning and 556.3 MB in the end (delta: 93.3 MB). Free memory was 395.4 MB in the beginning and 338.7 MB in the end (delta: 56.7 MB). Peak memory consumption was 216.7 MB. Max. memory is 5.3 GB. [2018-04-05 15:50:10,199 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 264.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 938.33 ms. Allocated memory is still 302.0 MB. Free memory was 239.5 MB in the beginning and 215.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 197.38 ms. Allocated memory is still 302.0 MB. Free memory was 215.5 MB in the beginning and 213.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 1547.76 ms. Allocated memory was 302.0 MB in the beginning and 462.9 MB in the end (delta: 161.0 MB). Free memory was 213.5 MB in the beginning and 395.4 MB in the end (delta: -181.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 333387.94 ms. Allocated memory was 462.9 MB in the beginning and 556.3 MB in the end (delta: 93.3 MB). Free memory was 395.4 MB in the beginning and 338.7 MB in the end (delta: 56.7 MB). Peak memory consumption was 216.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 358. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-05_15-50-10-224.csv Completed graceful shutdown