java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/memsafety/lockfree-3.0_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-35b68b2 [2018-04-06 20:12:25,987 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-06 20:12:25,988 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-06 20:12:26,003 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-06 20:12:26,003 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-06 20:12:26,004 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-06 20:12:26,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-06 20:12:26,007 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-06 20:12:26,009 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-06 20:12:26,010 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-06 20:12:26,011 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-06 20:12:26,011 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-06 20:12:26,012 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-06 20:12:26,013 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-06 20:12:26,014 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-06 20:12:26,016 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-06 20:12:26,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-06 20:12:26,020 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-06 20:12:26,022 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-06 20:12:26,023 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-06 20:12:26,025 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-06 20:12:26,032 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 [2018-04-06 20:12:26,057 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-06 20:12:26,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-06 20:12:26,057 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-06 20:12:26,058 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-06 20:12:26,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-06 20:12:26,058 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-06 20:12:26,059 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-06 20:12:26,059 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-06 20:12:26,059 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-06 20:12:26,059 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-06 20:12:26,060 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-06 20:12:26,060 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-06 20:12:26,060 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-06 20:12:26,060 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-06 20:12:26,060 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-06 20:12:26,061 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-06 20:12:26,061 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-06 20:12:26,061 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-06 20:12:26,061 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-06 20:12:26,061 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-06 20:12:26,062 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-06 20:12:26,062 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-06 20:12:26,062 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-06 20:12:26,062 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-06 20:12:26,062 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-06 20:12:26,063 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-06 20:12:26,063 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-06 20:12:26,063 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-06 20:12:26,063 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-06 20:12:26,063 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-06 20:12:26,064 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-06 20:12:26,064 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-06 20:12:26,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:26,064 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-06 20:12:26,065 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-06 20:12:26,065 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-06 20:12:26,066 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-06 20:12:26,066 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-06 20:12:26,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-06 20:12:26,138 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-06 20:12:26,142 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-06 20:12:26,144 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-06 20:12:26,145 INFO L276 PluginConnector]: CDTParser initialized [2018-04-06 20:12:26,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,514 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb3fe02d42 [2018-04-06 20:12:26,710 INFO L287 CDTParser]: IsIndexed: true [2018-04-06 20:12:26,710 INFO L288 CDTParser]: Found 1 translation units. [2018-04-06 20:12:26,711 INFO L168 CDTParser]: Scanning lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,723 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-06 20:12:26,723 INFO L215 ultiparseSymbolTable]: [2018-04-06 20:12:26,723 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-06 20:12:26,723 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____true_valid_memsafety_i__pop ('pop') in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,723 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____true_valid_memsafety_i__push ('push') in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,724 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,724 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-06 20:12:26,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____off64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____qaddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____blksize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__blksize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____caddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fd_set in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__sigset_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____rlim64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_quad_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__garbage in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_char in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ulong in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__mode_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pc1 in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_rwlockattr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fsblkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__clock_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__daddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_short in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____id_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pc4 in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__key_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____dev_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_int32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_barrier_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_quad_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_long in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__size_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____ino_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____pid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____intptr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_mutexattr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____mode_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____gid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____timer_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____sigset_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_int in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__gid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__caddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____quad_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_short in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__div_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____suseconds_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_long in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_spinlock_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____rlim_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__uid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_cond_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____socklen_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____pthread_list_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__lldiv_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_int16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__blkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_char in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__off_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____clockid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__quad_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____sig_atomic_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_attr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_once_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__wchar_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__uint in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ssize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__nlink_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__loff_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsblkcnt64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____nlink_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____daddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____clock_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,732 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____blkcnt64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_condattr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__suseconds_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____ssize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_int8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fd_mask in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fsid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__timer_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__clockid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____loff_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____off_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,733 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fd_mask in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fsfilcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____WAIT_STATUS in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_mutex_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ino_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsfilcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ushort in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____ino64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____time_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,734 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_int64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____key_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__time_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__S in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ldiv_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__register_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,735 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__id_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____swblk_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____useconds_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsfilcnt64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__dev_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_rwlock_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____blkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_barrierattr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,736 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_int in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,737 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsblkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,737 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_key_t in lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:26,755 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb3fe02d42 [2018-04-06 20:12:26,759 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-06 20:12:26,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-06 20:12:26,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-06 20:12:26,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-06 20:12:26,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-06 20:12:26,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:12:26" (1/1) ... [2018-04-06 20:12:26,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d8b19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:26, skipping insertion in model container [2018-04-06 20:12:26,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:12:26" (1/1) ... [2018-04-06 20:12:26,785 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 20:12:26,817 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 20:12:26,999 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 20:12:27,054 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 20:12:27,063 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-04-06 20:12:27,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27 WrapperNode [2018-04-06 20:12:27,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-06 20:12:27,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-06 20:12:27,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-06 20:12:27,114 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-06 20:12:27,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (1/1) ... [2018-04-06 20:12:27,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-06 20:12:27,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-06 20:12:27,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-06 20:12:27,176 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-06 20:12:27,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (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 [2018-04-06 20:12:27,306 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-06 20:12:27,307 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-06 20:12:27,307 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__push [2018-04-06 20:12:27,307 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__pop [2018-04-06 20:12:27,307 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-06 20:12:27,307 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-06 20:12:27,307 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-06 20:12:27,307 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-06 20:12:27,308 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-06 20:12:27,309 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-06 20:12:27,310 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-06 20:12:27,311 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-06 20:12:27,312 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-06 20:12:27,313 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-06 20:12:27,314 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-06 20:12:27,315 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-06 20:12:27,316 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-06 20:12:27,317 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-06 20:12:27,318 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-06 20:12:27,319 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-06 20:12:27,320 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__push [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-06 20:12:27,321 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__pop [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-06 20:12:27,322 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-06 20:12:27,762 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-06 20:12:27,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:12:27 BoogieIcfgContainer [2018-04-06 20:12:27,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-06 20:12:27,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-06 20:12:27,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-06 20:12:27,765 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-06 20:12:27,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:12:26" (1/3) ... [2018-04-06 20:12:27,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c00c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:12:27, skipping insertion in model container [2018-04-06 20:12:27,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:12:27" (2/3) ... [2018-04-06 20:12:27,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c00c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:12:27, skipping insertion in model container [2018-04-06 20:12:27,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:12:27" (3/3) ... [2018-04-06 20:12:27,768 INFO L107 eAbstractionObserver]: Analyzing ICFG lockfree-3.0_true-valid-memsafety.i [2018-04-06 20:12:27,776 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-06 20:12:27,856 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-04-06 20:12:27,894 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-06 20:12:27,895 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-06 20:12:27,895 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-06 20:12:27,895 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-06 20:12:27,895 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-06 20:12:27,895 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-06 20:12:27,895 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-06 20:12:27,895 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-06 20:12:27,895 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-06 20:12:27,896 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-06 20:12:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2018-04-06 20:12:27,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-06 20:12:27,920 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:27,921 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:27,922 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:27,926 INFO L82 PathProgramCache]: Analyzing trace with hash 469595319, 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 [2018-04-06 20:12:27,937 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:28,008 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,030 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,075 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:28,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-06 20:12:28,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-06 20:12:28,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-06 20:12:28,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-06 20:12:28,089 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2018-04-06 20:12:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:28,110 INFO L93 Difference]: Finished difference Result 143 states and 163 transitions. [2018-04-06 20:12:28,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-06 20:12:28,111 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-04-06 20:12:28,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:28,122 INFO L225 Difference]: With dead ends: 143 [2018-04-06 20:12:28,122 INFO L226 Difference]: Without dead ends: 121 [2018-04-06 20:12:28,126 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-06 20:12:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-04-06 20:12:28,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-04-06 20:12:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-04-06 20:12:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2018-04-06 20:12:28,163 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 19 [2018-04-06 20:12:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:28,164 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2018-04-06 20:12:28,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-06 20:12:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2018-04-06 20:12:28,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-06 20:12:28,165 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:28,165 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:28,165 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:28,165 INFO L82 PathProgramCache]: Analyzing trace with hash -619800426, 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 [2018-04-06 20:12:28,171 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:28,216 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,243 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,280 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:28,281 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-06 20:12:28,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-06 20:12:28,283 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-06 20:12:28,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 20:12:28,283 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 3 states. [2018-04-06 20:12:28,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:28,302 INFO L93 Difference]: Finished difference Result 140 states and 158 transitions. [2018-04-06 20:12:28,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-06 20:12:28,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-04-06 20:12:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:28,304 INFO L225 Difference]: With dead ends: 140 [2018-04-06 20:12:28,305 INFO L226 Difference]: Without dead ends: 122 [2018-04-06 20:12:28,305 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 20:12:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-06 20:12:28,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-04-06 20:12:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-04-06 20:12:28,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2018-04-06 20:12:28,314 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 24 [2018-04-06 20:12:28,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:28,314 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2018-04-06 20:12:28,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-06 20:12:28,314 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2018-04-06 20:12:28,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-06 20:12:28,315 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:28,315 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] [2018-04-06 20:12:28,315 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1707250905, 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 [2018-04-06 20:12:28,333 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:28,371 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,419 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,478 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:28,478 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-06 20:12:28,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-06 20:12:28,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-06 20:12:28,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 20:12:28,480 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand 3 states. [2018-04-06 20:12:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:28,517 INFO L93 Difference]: Finished difference Result 230 states and 266 transitions. [2018-04-06 20:12:28,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-06 20:12:28,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-04-06 20:12:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:28,520 INFO L225 Difference]: With dead ends: 230 [2018-04-06 20:12:28,521 INFO L226 Difference]: Without dead ends: 214 [2018-04-06 20:12:28,521 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 20:12:28,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-04-06 20:12:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2018-04-06 20:12:28,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-04-06 20:12:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2018-04-06 20:12:28,542 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 26 [2018-04-06 20:12:28,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:28,543 INFO L459 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2018-04-06 20:12:28,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-06 20:12:28,544 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2018-04-06 20:12:28,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-06 20:12:28,545 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:28,545 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] [2018-04-06 20:12:28,545 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:28,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1385169119, 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 [2018-04-06 20:12:28,552 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:28,586 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,626 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:28,694 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:28,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-06 20:12:28,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-06 20:12:28,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-06 20:12:28,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 20:12:28,695 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand 3 states. [2018-04-06 20:12:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:28,887 INFO L93 Difference]: Finished difference Result 250 states and 308 transitions. [2018-04-06 20:12:28,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-06 20:12:28,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-04-06 20:12:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:28,890 INFO L225 Difference]: With dead ends: 250 [2018-04-06 20:12:28,890 INFO L226 Difference]: Without dead ends: 243 [2018-04-06 20:12:28,891 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 20:12:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-04-06 20:12:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 232. [2018-04-06 20:12:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-04-06 20:12:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 289 transitions. [2018-04-06 20:12:28,915 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 289 transitions. Word has length 27 [2018-04-06 20:12:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:28,915 INFO L459 AbstractCegarLoop]: Abstraction has 232 states and 289 transitions. [2018-04-06 20:12:28,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-06 20:12:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 289 transitions. [2018-04-06 20:12:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-06 20:12:28,916 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:28,917 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:28,917 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:28,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1774016154, 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 [2018-04-06 20:12:28,925 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:28,966 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:29,025 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:29,143 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:29,143 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-04-06 20:12:29,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-06 20:12:29,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-06 20:12:29,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-06 20:12:29,144 INFO L87 Difference]: Start difference. First operand 232 states and 289 transitions. Second operand 8 states. [2018-04-06 20:12:29,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:29,334 INFO L93 Difference]: Finished difference Result 646 states and 819 transitions. [2018-04-06 20:12:29,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-06 20:12:29,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-04-06 20:12:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:29,338 INFO L225 Difference]: With dead ends: 646 [2018-04-06 20:12:29,339 INFO L226 Difference]: Without dead ends: 429 [2018-04-06 20:12:29,341 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-06 20:12:29,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2018-04-06 20:12:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 391. [2018-04-06 20:12:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-04-06 20:12:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 503 transitions. [2018-04-06 20:12:29,372 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 503 transitions. Word has length 32 [2018-04-06 20:12:29,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:29,372 INFO L459 AbstractCegarLoop]: Abstraction has 391 states and 503 transitions. [2018-04-06 20:12:29,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-06 20:12:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 503 transitions. [2018-04-06 20:12:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-06 20:12:29,374 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:29,374 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:29,374 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:29,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1774293274, 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 [2018-04-06 20:12:29,381 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:29,426 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:29,455 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 [2018-04-06 20:12:29,457 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:12:29,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:12:29,468 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-06 20:12:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:29,498 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:29,523 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:29,523 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-06 20:12:29,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-06 20:12:29,523 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-06 20:12:29,523 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-06 20:12:29,524 INFO L87 Difference]: Start difference. First operand 391 states and 503 transitions. Second operand 4 states. [2018-04-06 20:12:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:29,677 INFO L93 Difference]: Finished difference Result 680 states and 870 transitions. [2018-04-06 20:12:29,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-06 20:12:29,678 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-04-06 20:12:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:29,683 INFO L225 Difference]: With dead ends: 680 [2018-04-06 20:12:29,683 INFO L226 Difference]: Without dead ends: 676 [2018-04-06 20:12:29,684 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-06 20:12:29,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2018-04-06 20:12:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 641. [2018-04-06 20:12:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2018-04-06 20:12:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 831 transitions. [2018-04-06 20:12:29,720 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 831 transitions. Word has length 32 [2018-04-06 20:12:29,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:29,721 INFO L459 AbstractCegarLoop]: Abstraction has 641 states and 831 transitions. [2018-04-06 20:12:29,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-06 20:12:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 831 transitions. [2018-04-06 20:12:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-06 20:12:29,722 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:29,722 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:29,722 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:29,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1774293273, 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 [2018-04-06 20:12:29,728 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:29,765 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:29,785 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:29,833 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:29,833 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-06 20:12:29,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 20:12:29,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 20:12:29,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-06 20:12:29,834 INFO L87 Difference]: Start difference. First operand 641 states and 831 transitions. Second operand 6 states. [2018-04-06 20:12:29,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:29,969 INFO L93 Difference]: Finished difference Result 1455 states and 1881 transitions. [2018-04-06 20:12:29,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-06 20:12:29,971 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-06 20:12:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:29,978 INFO L225 Difference]: With dead ends: 1455 [2018-04-06 20:12:29,978 INFO L226 Difference]: Without dead ends: 829 [2018-04-06 20:12:29,980 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-04-06 20:12:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2018-04-06 20:12:30,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 648. [2018-04-06 20:12:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2018-04-06 20:12:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 839 transitions. [2018-04-06 20:12:30,026 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 839 transitions. Word has length 32 [2018-04-06 20:12:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:30,026 INFO L459 AbstractCegarLoop]: Abstraction has 648 states and 839 transitions. [2018-04-06 20:12:30,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 20:12:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 839 transitions. [2018-04-06 20:12:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-06 20:12:30,027 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:30,028 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] [2018-04-06 20:12:30,028 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:30,028 INFO L82 PathProgramCache]: Analyzing trace with hash -383813590, 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 [2018-04-06 20:12:30,042 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:30,087 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:30,111 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 [2018-04-06 20:12:30,112 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:12:30,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:12:30,115 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-06 20:12:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:30,136 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:30,199 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:30,199 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-06 20:12:30,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 20:12:30,200 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 20:12:30,200 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-06 20:12:30,200 INFO L87 Difference]: Start difference. First operand 648 states and 839 transitions. Second operand 6 states. [2018-04-06 20:12:30,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:30,710 INFO L93 Difference]: Finished difference Result 1161 states and 1478 transitions. [2018-04-06 20:12:30,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-06 20:12:30,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-04-06 20:12:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:30,715 INFO L225 Difference]: With dead ends: 1161 [2018-04-06 20:12:30,715 INFO L226 Difference]: Without dead ends: 1157 [2018-04-06 20:12:30,716 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-06 20:12:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2018-04-06 20:12:30,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1096. [2018-04-06 20:12:30,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2018-04-06 20:12:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1416 transitions. [2018-04-06 20:12:30,760 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1416 transitions. Word has length 34 [2018-04-06 20:12:30,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:30,760 INFO L459 AbstractCegarLoop]: Abstraction has 1096 states and 1416 transitions. [2018-04-06 20:12:30,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 20:12:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1416 transitions. [2018-04-06 20:12:30,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-06 20:12:30,761 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:30,762 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] [2018-04-06 20:12:30,762 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:30,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2139105792, 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 [2018-04-06 20:12:30,771 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:30,805 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:30,938 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 7 DAG size of output 5 [2018-04-06 20:12:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:31,083 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:31,303 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:31,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2018-04-06 20:12:31,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-06 20:12:31,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-06 20:12:31,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-04-06 20:12:31,304 INFO L87 Difference]: Start difference. First operand 1096 states and 1416 transitions. Second operand 12 states. [2018-04-06 20:12:31,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:31,968 INFO L93 Difference]: Finished difference Result 4018 states and 5210 transitions. [2018-04-06 20:12:31,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-06 20:12:31,969 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-04-06 20:12:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:31,984 INFO L225 Difference]: With dead ends: 4018 [2018-04-06 20:12:31,984 INFO L226 Difference]: Without dead ends: 2940 [2018-04-06 20:12:31,988 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2018-04-06 20:12:31,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2018-04-06 20:12:32,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2880. [2018-04-06 20:12:32,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-04-06 20:12:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3640 transitions. [2018-04-06 20:12:32,144 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3640 transitions. Word has length 36 [2018-04-06 20:12:32,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:32,145 INFO L459 AbstractCegarLoop]: Abstraction has 2880 states and 3640 transitions. [2018-04-06 20:12:32,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-06 20:12:32,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3640 transitions. [2018-04-06 20:12:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-06 20:12:32,146 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:32,146 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:32,147 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:32,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1885419390, 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 [2018-04-06 20:12:32,159 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:32,207 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:32,242 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:32,388 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:32,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-04-06 20:12:32,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-06 20:12:32,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-06 20:12:32,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-06 20:12:32,389 INFO L87 Difference]: Start difference. First operand 2880 states and 3640 transitions. Second operand 9 states. [2018-04-06 20:12:32,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:32,730 INFO L93 Difference]: Finished difference Result 6762 states and 8638 transitions. [2018-04-06 20:12:32,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-06 20:12:32,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-04-06 20:12:32,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:32,751 INFO L225 Difference]: With dead ends: 6762 [2018-04-06 20:12:32,751 INFO L226 Difference]: Without dead ends: 3900 [2018-04-06 20:12:32,760 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-06 20:12:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2018-04-06 20:12:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3768. [2018-04-06 20:12:32,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3768 states. [2018-04-06 20:12:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4728 transitions. [2018-04-06 20:12:32,977 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4728 transitions. Word has length 49 [2018-04-06 20:12:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:32,977 INFO L459 AbstractCegarLoop]: Abstraction has 3768 states and 4728 transitions. [2018-04-06 20:12:32,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-06 20:12:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4728 transitions. [2018-04-06 20:12:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-06 20:12:32,979 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:32,980 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-06 20:12:32,980 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:32,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1193421658, 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 [2018-04-06 20:12:32,991 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:33,044 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:33,168 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:33,323 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:33,324 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-04-06 20:12:33,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-06 20:12:33,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-06 20:12:33,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-04-06 20:12:33,325 INFO L87 Difference]: Start difference. First operand 3768 states and 4728 transitions. Second operand 13 states. [2018-04-06 20:12:34,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:34,108 INFO L93 Difference]: Finished difference Result 15128 states and 18858 transitions. [2018-04-06 20:12:34,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-06 20:12:34,109 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-04-06 20:12:34,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:34,146 INFO L225 Difference]: With dead ends: 15128 [2018-04-06 20:12:34,146 INFO L226 Difference]: Without dead ends: 11378 [2018-04-06 20:12:34,158 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2018-04-06 20:12:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2018-04-06 20:12:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 8970. [2018-04-06 20:12:34,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8970 states. [2018-04-06 20:12:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8970 states to 8970 states and 10972 transitions. [2018-04-06 20:12:34,449 INFO L78 Accepts]: Start accepts. Automaton has 8970 states and 10972 transitions. Word has length 57 [2018-04-06 20:12:34,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:34,450 INFO L459 AbstractCegarLoop]: Abstraction has 8970 states and 10972 transitions. [2018-04-06 20:12:34,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-06 20:12:34,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8970 states and 10972 transitions. [2018-04-06 20:12:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-06 20:12:34,451 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:34,452 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-06 20:12:34,452 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:34,452 INFO L82 PathProgramCache]: Analyzing trace with hash 69762973, 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 [2018-04-06 20:12:34,495 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:34,547 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:34,674 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:34,786 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:12:34,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2018-04-06 20:12:34,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-06 20:12:34,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-06 20:12:34,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-06 20:12:34,787 INFO L87 Difference]: Start difference. First operand 8970 states and 10972 transitions. Second operand 11 states. [2018-04-06 20:12:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:35,252 INFO L93 Difference]: Finished difference Result 12695 states and 15437 transitions. [2018-04-06 20:12:35,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-06 20:12:35,253 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-04-06 20:12:35,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:35,270 INFO L225 Difference]: With dead ends: 12695 [2018-04-06 20:12:35,271 INFO L226 Difference]: Without dead ends: 3407 [2018-04-06 20:12:35,293 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2018-04-06 20:12:35,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2018-04-06 20:12:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 3273. [2018-04-06 20:12:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3273 states. [2018-04-06 20:12:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 3921 transitions. [2018-04-06 20:12:35,469 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 3921 transitions. Word has length 62 [2018-04-06 20:12:35,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:35,470 INFO L459 AbstractCegarLoop]: Abstraction has 3273 states and 3921 transitions. [2018-04-06 20:12:35,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-06 20:12:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 3921 transitions. [2018-04-06 20:12:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-06 20:12:35,472 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:35,472 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:35,472 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:35,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1859582758, 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 [2018-04-06 20:12:35,482 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:35,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:35,634 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:35,778 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:35,778 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-04-06 20:12:35,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-06 20:12:35,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-06 20:12:35,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-04-06 20:12:35,779 INFO L87 Difference]: Start difference. First operand 3273 states and 3921 transitions. Second operand 13 states. [2018-04-06 20:12:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:36,911 INFO L93 Difference]: Finished difference Result 17011 states and 22021 transitions. [2018-04-06 20:12:36,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-06 20:12:36,912 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2018-04-06 20:12:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:36,978 INFO L225 Difference]: With dead ends: 17011 [2018-04-06 20:12:36,978 INFO L226 Difference]: Without dead ends: 13756 [2018-04-06 20:12:36,995 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2018-04-06 20:12:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13756 states. [2018-04-06 20:12:37,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13756 to 11194. [2018-04-06 20:12:37,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11194 states. [2018-04-06 20:12:37,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11194 states to 11194 states and 13692 transitions. [2018-04-06 20:12:37,453 INFO L78 Accepts]: Start accepts. Automaton has 11194 states and 13692 transitions. Word has length 72 [2018-04-06 20:12:37,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:37,453 INFO L459 AbstractCegarLoop]: Abstraction has 11194 states and 13692 transitions. [2018-04-06 20:12:37,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-06 20:12:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 11194 states and 13692 transitions. [2018-04-06 20:12:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-06 20:12:37,455 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:37,455 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1] [2018-04-06 20:12:37,455 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:37,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1431756733, 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 [2018-04-06 20:12:37,463 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:37,516 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:37,635 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:37,913 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:37,913 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-04-06 20:12:37,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-06 20:12:37,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-06 20:12:37,914 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-04-06 20:12:37,914 INFO L87 Difference]: Start difference. First operand 11194 states and 13692 transitions. Second operand 16 states. [2018-04-06 20:12:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:38,708 INFO L93 Difference]: Finished difference Result 24296 states and 30200 transitions. [2018-04-06 20:12:38,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-06 20:12:38,708 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 76 [2018-04-06 20:12:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:38,739 INFO L225 Difference]: With dead ends: 24296 [2018-04-06 20:12:38,739 INFO L226 Difference]: Without dead ends: 14622 [2018-04-06 20:12:38,760 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2018-04-06 20:12:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14622 states. [2018-04-06 20:12:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14622 to 14160. [2018-04-06 20:12:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14160 states. [2018-04-06 20:12:39,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14160 states to 14160 states and 17692 transitions. [2018-04-06 20:12:39,232 INFO L78 Accepts]: Start accepts. Automaton has 14160 states and 17692 transitions. Word has length 76 [2018-04-06 20:12:39,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:39,233 INFO L459 AbstractCegarLoop]: Abstraction has 14160 states and 17692 transitions. [2018-04-06 20:12:39,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-06 20:12:39,233 INFO L276 IsEmpty]: Start isEmpty. Operand 14160 states and 17692 transitions. [2018-04-06 20:12:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-06 20:12:39,234 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:39,234 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:39,235 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:39,235 INFO L82 PathProgramCache]: Analyzing trace with hash 136497930, 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 [2018-04-06 20:12:39,241 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:39,282 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:39,640 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:39,920 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:39,920 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-04-06 20:12:39,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-06 20:12:39,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-06 20:12:39,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-04-06 20:12:39,921 INFO L87 Difference]: Start difference. First operand 14160 states and 17692 transitions. Second operand 17 states. [2018-04-06 20:12:41,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:41,076 INFO L93 Difference]: Finished difference Result 30200 states and 39638 transitions. [2018-04-06 20:12:41,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-06 20:12:41,076 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 77 [2018-04-06 20:12:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:41,136 INFO L225 Difference]: With dead ends: 30200 [2018-04-06 20:12:41,136 INFO L226 Difference]: Without dead ends: 17560 [2018-04-06 20:12:41,176 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2018-04-06 20:12:41,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17560 states. [2018-04-06 20:12:41,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17560 to 12572. [2018-04-06 20:12:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12572 states. [2018-04-06 20:12:41,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12572 states to 12572 states and 15628 transitions. [2018-04-06 20:12:41,882 INFO L78 Accepts]: Start accepts. Automaton has 12572 states and 15628 transitions. Word has length 77 [2018-04-06 20:12:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:41,883 INFO L459 AbstractCegarLoop]: Abstraction has 12572 states and 15628 transitions. [2018-04-06 20:12:41,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-06 20:12:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 12572 states and 15628 transitions. [2018-04-06 20:12:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-06 20:12:41,885 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:41,885 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-06 20:12:41,886 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:41,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1925943435, 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 [2018-04-06 20:12:41,894 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:41,951 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:42,023 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:42,162 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:42,163 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-04-06 20:12:42,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-06 20:12:42,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-06 20:12:42,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-06 20:12:42,164 INFO L87 Difference]: Start difference. First operand 12572 states and 15628 transitions. Second operand 13 states. [2018-04-06 20:12:43,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:43,078 INFO L93 Difference]: Finished difference Result 26417 states and 32847 transitions. [2018-04-06 20:12:43,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-06 20:12:43,078 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 79 [2018-04-06 20:12:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:43,117 INFO L225 Difference]: With dead ends: 26417 [2018-04-06 20:12:43,117 INFO L226 Difference]: Without dead ends: 13317 [2018-04-06 20:12:43,133 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2018-04-06 20:12:43,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13317 states. [2018-04-06 20:12:43,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13317 to 12507. [2018-04-06 20:12:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12507 states. [2018-04-06 20:12:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12507 states to 12507 states and 15524 transitions. [2018-04-06 20:12:43,594 INFO L78 Accepts]: Start accepts. Automaton has 12507 states and 15524 transitions. Word has length 79 [2018-04-06 20:12:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:43,594 INFO L459 AbstractCegarLoop]: Abstraction has 12507 states and 15524 transitions. [2018-04-06 20:12:43,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-06 20:12:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 12507 states and 15524 transitions. [2018-04-06 20:12:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-06 20:12:43,596 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:43,596 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:43,596 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:43,597 INFO L82 PathProgramCache]: Analyzing trace with hash -497007035, 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 [2018-04-06 20:12:43,602 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:43,647 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-06 20:12:43,715 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:43,873 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:43,874 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 19 [2018-04-06 20:12:43,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-06 20:12:43,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-06 20:12:43,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-04-06 20:12:43,875 INFO L87 Difference]: Start difference. First operand 12507 states and 15524 transitions. Second operand 19 states. [2018-04-06 20:12:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:44,845 INFO L93 Difference]: Finished difference Result 28431 states and 35818 transitions. [2018-04-06 20:12:44,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-06 20:12:44,869 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2018-04-06 20:12:44,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:44,900 INFO L225 Difference]: With dead ends: 28431 [2018-04-06 20:12:44,901 INFO L226 Difference]: Without dead ends: 15468 [2018-04-06 20:12:44,917 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2018-04-06 20:12:44,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15468 states. [2018-04-06 20:12:45,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15468 to 13489. [2018-04-06 20:12:45,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13489 states. [2018-04-06 20:12:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 16833 transitions. [2018-04-06 20:12:45,344 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 16833 transitions. Word has length 86 [2018-04-06 20:12:45,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:45,344 INFO L459 AbstractCegarLoop]: Abstraction has 13489 states and 16833 transitions. [2018-04-06 20:12:45,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-06 20:12:45,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 16833 transitions. [2018-04-06 20:12:45,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-06 20:12:45,347 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:45,347 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:45,347 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:45,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1256551694, 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 [2018-04-06 20:12:45,362 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:45,409 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-06 20:12:45,481 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:45,627 WARN L151 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 12 DAG size of output 9 [2018-04-06 20:12:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-06 20:12:45,694 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-06 20:12:45,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2018-04-06 20:12:45,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-06 20:12:45,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-06 20:12:45,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-06 20:12:45,695 INFO L87 Difference]: Start difference. First operand 13489 states and 16833 transitions. Second operand 11 states. [2018-04-06 20:12:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:46,098 INFO L93 Difference]: Finished difference Result 18475 states and 22813 transitions. [2018-04-06 20:12:46,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-06 20:12:46,098 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2018-04-06 20:12:46,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:46,105 INFO L225 Difference]: With dead ends: 18475 [2018-04-06 20:12:46,105 INFO L226 Difference]: Without dead ends: 4344 [2018-04-06 20:12:46,122 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2018-04-06 20:12:46,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2018-04-06 20:12:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 2859. [2018-04-06 20:12:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2859 states. [2018-04-06 20:12:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 3485 transitions. [2018-04-06 20:12:46,299 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 3485 transitions. Word has length 88 [2018-04-06 20:12:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:46,299 INFO L459 AbstractCegarLoop]: Abstraction has 2859 states and 3485 transitions. [2018-04-06 20:12:46,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-06 20:12:46,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 3485 transitions. [2018-04-06 20:12:46,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-06 20:12:46,302 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:46,302 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-06 20:12:46,302 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:46,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1501465423, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:46,312 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:46,368 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-06 20:12:46,473 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 20:12:46,728 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:46,728 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2018-04-06 20:12:46,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-06 20:12:46,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-06 20:12:46,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-04-06 20:12:46,729 INFO L87 Difference]: Start difference. First operand 2859 states and 3485 transitions. Second operand 22 states. [2018-04-06 20:12:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:47,849 INFO L93 Difference]: Finished difference Result 8716 states and 11275 transitions. [2018-04-06 20:12:47,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-06 20:12:47,849 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 104 [2018-04-06 20:12:47,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:47,858 INFO L225 Difference]: With dead ends: 8716 [2018-04-06 20:12:47,858 INFO L226 Difference]: Without dead ends: 5916 [2018-04-06 20:12:47,863 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=433, Invalid=1373, Unknown=0, NotChecked=0, Total=1806 [2018-04-06 20:12:47,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5916 states. [2018-04-06 20:12:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5916 to 3831. [2018-04-06 20:12:48,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2018-04-06 20:12:48,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 4879 transitions. [2018-04-06 20:12:48,076 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 4879 transitions. Word has length 104 [2018-04-06 20:12:48,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:48,076 INFO L459 AbstractCegarLoop]: Abstraction has 3831 states and 4879 transitions. [2018-04-06 20:12:48,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-06 20:12:48,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 4879 transitions. [2018-04-06 20:12:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-04-06 20:12:48,079 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:48,079 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:48,079 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:48,079 INFO L82 PathProgramCache]: Analyzing trace with hash -912146342, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:48,090 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:48,151 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:48,199 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-04-06 20:12:48,199 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 70 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-04-06 20:12:48,330 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:48,330 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-04-06 20:12:48,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-06 20:12:48,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-06 20:12:48,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-04-06 20:12:48,331 INFO L87 Difference]: Start difference. First operand 3831 states and 4879 transitions. Second operand 16 states. [2018-04-06 20:12:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:49,100 INFO L93 Difference]: Finished difference Result 8646 states and 11167 transitions. [2018-04-06 20:12:49,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-06 20:12:49,101 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 118 [2018-04-06 20:12:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:49,108 INFO L225 Difference]: With dead ends: 8646 [2018-04-06 20:12:49,108 INFO L226 Difference]: Without dead ends: 4874 [2018-04-06 20:12:49,114 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2018-04-06 20:12:49,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2018-04-06 20:12:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4771. [2018-04-06 20:12:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4771 states. [2018-04-06 20:12:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 6137 transitions. [2018-04-06 20:12:49,406 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 6137 transitions. Word has length 118 [2018-04-06 20:12:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:49,407 INFO L459 AbstractCegarLoop]: Abstraction has 4771 states and 6137 transitions. [2018-04-06 20:12:49,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-06 20:12:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 6137 transitions. [2018-04-06 20:12:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-04-06 20:12:49,410 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:49,410 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2018-04-06 20:12:49,410 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:49,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1555096654, 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 [2018-04-06 20:12:49,416 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:49,474 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-04-06 20:12:49,547 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-04-06 20:12:49,738 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:49,739 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 21 [2018-04-06 20:12:49,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-06 20:12:49,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-06 20:12:49,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-04-06 20:12:49,739 INFO L87 Difference]: Start difference. First operand 4771 states and 6137 transitions. Second operand 21 states. [2018-04-06 20:12:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:50,765 INFO L93 Difference]: Finished difference Result 11080 states and 14497 transitions. [2018-04-06 20:12:50,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-06 20:12:50,765 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 146 [2018-04-06 20:12:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:50,776 INFO L225 Difference]: With dead ends: 11080 [2018-04-06 20:12:50,776 INFO L226 Difference]: Without dead ends: 6368 [2018-04-06 20:12:50,783 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2018-04-06 20:12:50,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6368 states. [2018-04-06 20:12:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6368 to 4811. [2018-04-06 20:12:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4811 states. [2018-04-06 20:12:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6217 transitions. [2018-04-06 20:12:51,100 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6217 transitions. Word has length 146 [2018-04-06 20:12:51,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:51,100 INFO L459 AbstractCegarLoop]: Abstraction has 4811 states and 6217 transitions. [2018-04-06 20:12:51,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-06 20:12:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6217 transitions. [2018-04-06 20:12:51,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-04-06 20:12:51,104 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:51,104 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 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] [2018-04-06 20:12:51,105 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:51,105 INFO L82 PathProgramCache]: Analyzing trace with hash 397881204, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:51,114 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:51,191 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 202 proven. 7 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-04-06 20:12:51,254 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 136 proven. 49 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-04-06 20:12:51,403 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:51,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-06 20:12:51,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-06 20:12:51,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-06 20:12:51,404 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-06 20:12:51,405 INFO L87 Difference]: Start difference. First operand 4811 states and 6217 transitions. Second operand 16 states. [2018-04-06 20:12:52,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:52,230 INFO L93 Difference]: Finished difference Result 11622 states and 15337 transitions. [2018-04-06 20:12:52,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-06 20:12:52,230 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 165 [2018-04-06 20:12:52,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:52,241 INFO L225 Difference]: With dead ends: 11622 [2018-04-06 20:12:52,242 INFO L226 Difference]: Without dead ends: 6870 [2018-04-06 20:12:52,250 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=682, Unknown=0, NotChecked=0, Total=930 [2018-04-06 20:12:52,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6870 states. [2018-04-06 20:12:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6870 to 6643. [2018-04-06 20:12:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6643 states. [2018-04-06 20:12:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6643 states to 6643 states and 8609 transitions. [2018-04-06 20:12:52,648 INFO L78 Accepts]: Start accepts. Automaton has 6643 states and 8609 transitions. Word has length 165 [2018-04-06 20:12:52,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:52,648 INFO L459 AbstractCegarLoop]: Abstraction has 6643 states and 8609 transitions. [2018-04-06 20:12:52,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-06 20:12:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 6643 states and 8609 transitions. [2018-04-06 20:12:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-04-06 20:12:52,651 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:52,651 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:52,651 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:52,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1063733117, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:52,656 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:52,715 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:52,768 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 87 proven. 107 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-04-06 20:12:52,768 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 81 proven. 113 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-04-06 20:12:52,908 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:52,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-04-06 20:12:52,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-06 20:12:52,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-06 20:12:52,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-04-06 20:12:52,909 INFO L87 Difference]: Start difference. First operand 6643 states and 8609 transitions. Second operand 12 states. [2018-04-06 20:12:53,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:53,883 INFO L93 Difference]: Finished difference Result 18360 states and 24107 transitions. [2018-04-06 20:12:53,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-06 20:12:53,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 165 [2018-04-06 20:12:53,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:53,903 INFO L225 Difference]: With dead ends: 18360 [2018-04-06 20:12:53,904 INFO L226 Difference]: Without dead ends: 11428 [2018-04-06 20:12:53,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2018-04-06 20:12:53,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11428 states. [2018-04-06 20:12:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11428 to 10909. [2018-04-06 20:12:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10909 states. [2018-04-06 20:12:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10909 states to 10909 states and 14353 transitions. [2018-04-06 20:12:54,534 INFO L78 Accepts]: Start accepts. Automaton has 10909 states and 14353 transitions. Word has length 165 [2018-04-06 20:12:54,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:54,535 INFO L459 AbstractCegarLoop]: Abstraction has 10909 states and 14353 transitions. [2018-04-06 20:12:54,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-06 20:12:54,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10909 states and 14353 transitions. [2018-04-06 20:12:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-04-06 20:12:54,537 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:54,538 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:54,538 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:54,538 INFO L82 PathProgramCache]: Analyzing trace with hash 559434229, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:54,543 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:54,628 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 208 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-04-06 20:12:54,844 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 156 proven. 36 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-04-06 20:12:55,099 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:55,099 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-06 20:12:55,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-06 20:12:55,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-06 20:12:55,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-06 20:12:55,100 INFO L87 Difference]: Start difference. First operand 10909 states and 14353 transitions. Second operand 15 states. [2018-04-06 20:12:56,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:56,335 INFO L93 Difference]: Finished difference Result 24896 states and 32807 transitions. [2018-04-06 20:12:56,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-06 20:12:56,335 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 167 [2018-04-06 20:12:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:56,375 INFO L225 Difference]: With dead ends: 24896 [2018-04-06 20:12:56,375 INFO L226 Difference]: Without dead ends: 14046 [2018-04-06 20:12:56,400 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2018-04-06 20:12:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14046 states. [2018-04-06 20:12:57,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14046 to 12437. [2018-04-06 20:12:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12437 states. [2018-04-06 20:12:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12437 states to 12437 states and 16299 transitions. [2018-04-06 20:12:57,280 INFO L78 Accepts]: Start accepts. Automaton has 12437 states and 16299 transitions. Word has length 167 [2018-04-06 20:12:57,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:57,280 INFO L459 AbstractCegarLoop]: Abstraction has 12437 states and 16299 transitions. [2018-04-06 20:12:57,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-06 20:12:57,281 INFO L276 IsEmpty]: Start isEmpty. Operand 12437 states and 16299 transitions. [2018-04-06 20:12:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-04-06 20:12:57,284 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:57,284 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:57,284 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:57,284 INFO L82 PathProgramCache]: Analyzing trace with hash -459338332, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:57,290 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:57,355 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:12:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 236 proven. 8 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-04-06 20:12:57,494 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:12:57,666 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 154 proven. 58 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-04-06 20:12:57,687 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:12:57,687 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-06 20:12:57,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-06 20:12:57,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-06 20:12:57,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-06 20:12:57,688 INFO L87 Difference]: Start difference. First operand 12437 states and 16299 transitions. Second operand 15 states. [2018-04-06 20:12:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:12:58,909 INFO L93 Difference]: Finished difference Result 26424 states and 34625 transitions. [2018-04-06 20:12:58,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-06 20:12:58,909 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 172 [2018-04-06 20:12:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:12:58,934 INFO L225 Difference]: With dead ends: 26424 [2018-04-06 20:12:58,934 INFO L226 Difference]: Without dead ends: 14046 [2018-04-06 20:12:58,954 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 334 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2018-04-06 20:12:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14046 states. [2018-04-06 20:12:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14046 to 13965. [2018-04-06 20:12:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13965 states. [2018-04-06 20:12:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13965 states to 13965 states and 18183 transitions. [2018-04-06 20:12:59,803 INFO L78 Accepts]: Start accepts. Automaton has 13965 states and 18183 transitions. Word has length 172 [2018-04-06 20:12:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:12:59,804 INFO L459 AbstractCegarLoop]: Abstraction has 13965 states and 18183 transitions. [2018-04-06 20:12:59,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-06 20:12:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 13965 states and 18183 transitions. [2018-04-06 20:12:59,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-06 20:12:59,807 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:12:59,807 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:12:59,808 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:12:59,808 INFO L82 PathProgramCache]: Analyzing trace with hash 61345438, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:12:59,861 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:12:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:12:59,934 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 150 proven. 114 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-04-06 20:13:00,044 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:00,195 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 152 proven. 112 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-04-06 20:13:00,216 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:00,216 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-04-06 20:13:00,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-06 20:13:00,217 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-06 20:13:00,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-04-06 20:13:00,218 INFO L87 Difference]: Start difference. First operand 13965 states and 18183 transitions. Second operand 15 states. [2018-04-06 20:13:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:02,492 INFO L93 Difference]: Finished difference Result 23318 states and 31010 transitions. [2018-04-06 20:13:02,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-06 20:13:02,493 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 181 [2018-04-06 20:13:02,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:02,541 INFO L225 Difference]: With dead ends: 23318 [2018-04-06 20:13:02,541 INFO L226 Difference]: Without dead ends: 23315 [2018-04-06 20:13:02,555 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 358 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-04-06 20:13:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23315 states. [2018-04-06 20:13:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23315 to 20998. [2018-04-06 20:13:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20998 states. [2018-04-06 20:13:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20998 states to 20998 states and 27957 transitions. [2018-04-06 20:13:03,809 INFO L78 Accepts]: Start accepts. Automaton has 20998 states and 27957 transitions. Word has length 181 [2018-04-06 20:13:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:03,809 INFO L459 AbstractCegarLoop]: Abstraction has 20998 states and 27957 transitions. [2018-04-06 20:13:03,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-06 20:13:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 20998 states and 27957 transitions. [2018-04-06 20:13:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-06 20:13:03,813 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:03,813 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:03,813 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:03,813 INFO L82 PathProgramCache]: Analyzing trace with hash 61345439, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:03,821 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:03,892 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-04-06 20:13:04,075 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:04,308 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 8 treesize of output 6 [2018-04-06 20:13:04,308 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:04,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:04,309 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2018-04-06 20:13:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-04-06 20:13:04,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:04,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2018-04-06 20:13:04,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-06 20:13:04,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-06 20:13:04,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2018-04-06 20:13:04,414 INFO L87 Difference]: Start difference. First operand 20998 states and 27957 transitions. Second operand 21 states. [2018-04-06 20:13:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:08,591 INFO L93 Difference]: Finished difference Result 35294 states and 47304 transitions. [2018-04-06 20:13:08,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-06 20:13:08,592 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 181 [2018-04-06 20:13:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:08,663 INFO L225 Difference]: With dead ends: 35294 [2018-04-06 20:13:08,663 INFO L226 Difference]: Without dead ends: 35291 [2018-04-06 20:13:08,684 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 359 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=780, Invalid=2642, Unknown=0, NotChecked=0, Total=3422 [2018-04-06 20:13:08,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35291 states. [2018-04-06 20:13:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35291 to 33484. [2018-04-06 20:13:10,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33484 states. [2018-04-06 20:13:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33484 states to 33484 states and 44963 transitions. [2018-04-06 20:13:10,665 INFO L78 Accepts]: Start accepts. Automaton has 33484 states and 44963 transitions. Word has length 181 [2018-04-06 20:13:10,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:10,665 INFO L459 AbstractCegarLoop]: Abstraction has 33484 states and 44963 transitions. [2018-04-06 20:13:10,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-06 20:13:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 33484 states and 44963 transitions. [2018-04-06 20:13:10,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-04-06 20:13:10,669 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:10,669 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:10,669 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:10,669 INFO L82 PathProgramCache]: Analyzing trace with hash 583708094, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:10,675 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:10,732 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 230 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-04-06 20:13:10,800 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 136 proven. 76 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-04-06 20:13:10,948 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:10,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-06 20:13:10,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-06 20:13:10,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-06 20:13:10,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-06 20:13:10,949 INFO L87 Difference]: Start difference. First operand 33484 states and 44963 transitions. Second operand 15 states. [2018-04-06 20:13:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:12,928 INFO L93 Difference]: Finished difference Result 61184 states and 81867 transitions. [2018-04-06 20:13:12,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-06 20:13:12,928 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 179 [2018-04-06 20:13:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:12,984 INFO L225 Difference]: With dead ends: 61184 [2018-04-06 20:13:12,984 INFO L226 Difference]: Without dead ends: 27609 [2018-04-06 20:13:13,032 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 348 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-04-06 20:13:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27609 states. [2018-04-06 20:13:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27609 to 23753. [2018-04-06 20:13:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23753 states. [2018-04-06 20:13:14,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23753 states to 23753 states and 31583 transitions. [2018-04-06 20:13:14,553 INFO L78 Accepts]: Start accepts. Automaton has 23753 states and 31583 transitions. Word has length 179 [2018-04-06 20:13:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:14,554 INFO L459 AbstractCegarLoop]: Abstraction has 23753 states and 31583 transitions. [2018-04-06 20:13:14,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-06 20:13:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 23753 states and 31583 transitions. [2018-04-06 20:13:14,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-04-06 20:13:14,558 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:14,559 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2018-04-06 20:13:14,559 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:14,559 INFO L82 PathProgramCache]: Analyzing trace with hash 2067001229, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:14,566 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:14,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 196 proven. 4 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-04-06 20:13:14,691 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 102 proven. 90 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2018-04-06 20:13:14,843 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:14,843 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-04-06 20:13:14,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-06 20:13:14,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-06 20:13:14,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-06 20:13:14,844 INFO L87 Difference]: Start difference. First operand 23753 states and 31583 transitions. Second operand 13 states. [2018-04-06 20:13:15,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:15,984 INFO L93 Difference]: Finished difference Result 38112 states and 49613 transitions. [2018-04-06 20:13:15,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-06 20:13:15,984 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 188 [2018-04-06 20:13:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:16,007 INFO L225 Difference]: With dead ends: 38112 [2018-04-06 20:13:16,007 INFO L226 Difference]: Without dead ends: 13865 [2018-04-06 20:13:16,036 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 369 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2018-04-06 20:13:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2018-04-06 20:13:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 13126. [2018-04-06 20:13:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13126 states. [2018-04-06 20:13:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13126 states to 13126 states and 16410 transitions. [2018-04-06 20:13:16,690 INFO L78 Accepts]: Start accepts. Automaton has 13126 states and 16410 transitions. Word has length 188 [2018-04-06 20:13:16,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:16,690 INFO L459 AbstractCegarLoop]: Abstraction has 13126 states and 16410 transitions. [2018-04-06 20:13:16,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-06 20:13:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 13126 states and 16410 transitions. [2018-04-06 20:13:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-04-06 20:13:16,695 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:16,695 INFO L355 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 9, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:16,695 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:16,695 INFO L82 PathProgramCache]: Analyzing trace with hash -53655789, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:16,701 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:16,786 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 218 proven. 7 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-04-06 20:13:16,873 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-04-06 20:13:17,050 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:17,051 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-06 20:13:17,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-06 20:13:17,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-06 20:13:17,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-06 20:13:17,052 INFO L87 Difference]: Start difference. First operand 13126 states and 16410 transitions. Second operand 16 states. [2018-04-06 20:13:17,547 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 8 DAG size of output 7 [2018-04-06 20:13:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:18,300 INFO L93 Difference]: Finished difference Result 26212 states and 32566 transitions. [2018-04-06 20:13:18,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-06 20:13:18,301 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 244 [2018-04-06 20:13:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:18,318 INFO L225 Difference]: With dead ends: 26212 [2018-04-06 20:13:18,318 INFO L226 Difference]: Without dead ends: 11443 [2018-04-06 20:13:18,336 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2018-04-06 20:13:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2018-04-06 20:13:18,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 11080. [2018-04-06 20:13:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11080 states. [2018-04-06 20:13:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11080 states to 11080 states and 13174 transitions. [2018-04-06 20:13:18,907 INFO L78 Accepts]: Start accepts. Automaton has 11080 states and 13174 transitions. Word has length 244 [2018-04-06 20:13:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:18,907 INFO L459 AbstractCegarLoop]: Abstraction has 11080 states and 13174 transitions. [2018-04-06 20:13:18,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-06 20:13:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 11080 states and 13174 transitions. [2018-04-06 20:13:18,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-04-06 20:13:18,911 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:18,911 INFO L355 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 9, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:18,911 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:18,911 INFO L82 PathProgramCache]: Analyzing trace with hash 331899856, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:18,916 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:18,999 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-06 20:13:19,081 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-06 20:13:19,215 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 20:13:19,216 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2018-04-06 20:13:19,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-06 20:13:19,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-06 20:13:19,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-04-06 20:13:19,217 INFO L87 Difference]: Start difference. First operand 11080 states and 13174 transitions. Second operand 11 states. [2018-04-06 20:13:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:20,007 INFO L93 Difference]: Finished difference Result 13035 states and 15822 transitions. [2018-04-06 20:13:20,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-06 20:13:20,008 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2018-04-06 20:13:20,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:20,028 INFO L225 Difference]: With dead ends: 13035 [2018-04-06 20:13:20,028 INFO L226 Difference]: Without dead ends: 13001 [2018-04-06 20:13:20,035 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2018-04-06 20:13:20,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13001 states. [2018-04-06 20:13:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13001 to 12246. [2018-04-06 20:13:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12246 states. [2018-04-06 20:13:20,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12246 states to 12246 states and 14532 transitions. [2018-04-06 20:13:20,688 INFO L78 Accepts]: Start accepts. Automaton has 12246 states and 14532 transitions. Word has length 248 [2018-04-06 20:13:20,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:20,689 INFO L459 AbstractCegarLoop]: Abstraction has 12246 states and 14532 transitions. [2018-04-06 20:13:20,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-06 20:13:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 12246 states and 14532 transitions. [2018-04-06 20:13:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-04-06 20:13:20,696 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:20,696 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:20,696 INFO L408 AbstractCegarLoop]: === Iteration 32 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:20,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1025819538, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:20,817 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:20,930 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 178 proven. 11 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-06 20:13:21,023 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 178 proven. 11 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-06 20:13:21,253 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:21,254 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-06 20:13:21,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-06 20:13:21,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-06 20:13:21,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-06 20:13:21,255 INFO L87 Difference]: Start difference. First operand 12246 states and 14532 transitions. Second operand 16 states. [2018-04-06 20:13:22,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:22,218 INFO L93 Difference]: Finished difference Result 21717 states and 25989 transitions. [2018-04-06 20:13:22,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-06 20:13:22,219 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 272 [2018-04-06 20:13:22,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:22,234 INFO L225 Difference]: With dead ends: 21717 [2018-04-06 20:13:22,234 INFO L226 Difference]: Without dead ends: 9417 [2018-04-06 20:13:22,249 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 533 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2018-04-06 20:13:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9417 states. [2018-04-06 20:13:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9417 to 8755. [2018-04-06 20:13:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8755 states. [2018-04-06 20:13:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8755 states to 8755 states and 10323 transitions. [2018-04-06 20:13:22,740 INFO L78 Accepts]: Start accepts. Automaton has 8755 states and 10323 transitions. Word has length 272 [2018-04-06 20:13:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:22,741 INFO L459 AbstractCegarLoop]: Abstraction has 8755 states and 10323 transitions. [2018-04-06 20:13:22,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-06 20:13:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8755 states and 10323 transitions. [2018-04-06 20:13:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-04-06 20:13:22,745 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:22,745 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:22,745 INFO L408 AbstractCegarLoop]: === Iteration 33 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:22,746 INFO L82 PathProgramCache]: Analyzing trace with hash -957955639, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:22,751 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:22,843 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 177 proven. 11 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-06 20:13:22,915 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 175 proven. 13 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-06 20:13:23,079 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:23,079 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-04-06 20:13:23,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-06 20:13:23,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-06 20:13:23,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-04-06 20:13:23,080 INFO L87 Difference]: Start difference. First operand 8755 states and 10323 transitions. Second operand 19 states. [2018-04-06 20:13:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:24,766 INFO L93 Difference]: Finished difference Result 10128 states and 12202 transitions. [2018-04-06 20:13:24,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-06 20:13:24,766 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 274 [2018-04-06 20:13:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:24,781 INFO L225 Difference]: With dead ends: 10128 [2018-04-06 20:13:24,781 INFO L226 Difference]: Without dead ends: 10100 [2018-04-06 20:13:24,786 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=525, Invalid=1637, Unknown=0, NotChecked=0, Total=2162 [2018-04-06 20:13:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2018-04-06 20:13:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 7951. [2018-04-06 20:13:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2018-04-06 20:13:25,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 9377 transitions. [2018-04-06 20:13:25,287 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 9377 transitions. Word has length 274 [2018-04-06 20:13:25,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:25,288 INFO L459 AbstractCegarLoop]: Abstraction has 7951 states and 9377 transitions. [2018-04-06 20:13:25,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-06 20:13:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 9377 transitions. [2018-04-06 20:13:25,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-04-06 20:13:25,293 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:25,293 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:25,293 INFO L408 AbstractCegarLoop]: === Iteration 34 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:25,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1489072234, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:25,299 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:25,418 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 230 proven. 326 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-04-06 20:13:25,744 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 220 proven. 336 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-04-06 20:13:25,998 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:25,999 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2018-04-06 20:13:25,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-06 20:13:25,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-06 20:13:25,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-04-06 20:13:26,000 INFO L87 Difference]: Start difference. First operand 7951 states and 9377 transitions. Second operand 20 states. [2018-04-06 20:13:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:29,926 INFO L93 Difference]: Finished difference Result 8991 states and 10564 transitions. [2018-04-06 20:13:29,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-06 20:13:29,927 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 277 [2018-04-06 20:13:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:29,944 INFO L225 Difference]: With dead ends: 8991 [2018-04-06 20:13:29,944 INFO L226 Difference]: Without dead ends: 8989 [2018-04-06 20:13:29,951 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 556 SyntacticMatches, 6 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1517 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1210, Invalid=4490, Unknown=0, NotChecked=0, Total=5700 [2018-04-06 20:13:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2018-04-06 20:13:30,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8244. [2018-04-06 20:13:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8244 states. [2018-04-06 20:13:30,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8244 states to 8244 states and 9707 transitions. [2018-04-06 20:13:30,482 INFO L78 Accepts]: Start accepts. Automaton has 8244 states and 9707 transitions. Word has length 277 [2018-04-06 20:13:30,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:30,483 INFO L459 AbstractCegarLoop]: Abstraction has 8244 states and 9707 transitions. [2018-04-06 20:13:30,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-06 20:13:30,483 INFO L276 IsEmpty]: Start isEmpty. Operand 8244 states and 9707 transitions. [2018-04-06 20:13:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-04-06 20:13:30,488 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:30,488 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:30,488 INFO L408 AbstractCegarLoop]: === Iteration 35 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:30,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1489072233, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:30,496 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:30,602 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 128 proven. 390 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-06 20:13:31,137 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 116 proven. 402 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-06 20:13:31,872 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:31,872 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2018-04-06 20:13:31,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-06 20:13:31,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-06 20:13:31,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2018-04-06 20:13:31,873 INFO L87 Difference]: Start difference. First operand 8244 states and 9707 transitions. Second operand 28 states. [2018-04-06 20:13:41,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:41,994 INFO L93 Difference]: Finished difference Result 19598 states and 23188 transitions. [2018-04-06 20:13:41,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-04-06 20:13:41,994 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 277 [2018-04-06 20:13:41,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:42,022 INFO L225 Difference]: With dead ends: 19598 [2018-04-06 20:13:42,023 INFO L226 Difference]: Without dead ends: 19491 [2018-04-06 20:13:42,034 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 568 SyntacticMatches, 9 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6517 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3655, Invalid=16651, Unknown=0, NotChecked=0, Total=20306 [2018-04-06 20:13:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19491 states. [2018-04-06 20:13:43,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19491 to 17792. [2018-04-06 20:13:43,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17792 states. [2018-04-06 20:13:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17792 states to 17792 states and 21106 transitions. [2018-04-06 20:13:43,174 INFO L78 Accepts]: Start accepts. Automaton has 17792 states and 21106 transitions. Word has length 277 [2018-04-06 20:13:43,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:43,175 INFO L459 AbstractCegarLoop]: Abstraction has 17792 states and 21106 transitions. [2018-04-06 20:13:43,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-06 20:13:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 17792 states and 21106 transitions. [2018-04-06 20:13:43,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-04-06 20:13:43,180 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:43,180 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:43,180 INFO L408 AbstractCegarLoop]: === Iteration 36 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:43,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1083399618, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:43,187 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:43,279 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 128 proven. 390 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-06 20:13:43,380 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 116 proven. 402 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-06 20:13:43,642 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:43,643 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2018-04-06 20:13:43,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-06 20:13:43,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-06 20:13:43,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2018-04-06 20:13:43,644 INFO L87 Difference]: Start difference. First operand 17792 states and 21106 transitions. Second operand 19 states. [2018-04-06 20:13:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:47,064 INFO L93 Difference]: Finished difference Result 35757 states and 42495 transitions. [2018-04-06 20:13:47,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-06 20:13:47,099 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 278 [2018-04-06 20:13:47,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:47,130 INFO L225 Difference]: With dead ends: 35757 [2018-04-06 20:13:47,130 INFO L226 Difference]: Without dead ends: 18730 [2018-04-06 20:13:47,156 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1379, Invalid=5931, Unknown=0, NotChecked=0, Total=7310 [2018-04-06 20:13:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18730 states. [2018-04-06 20:13:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18730 to 17626. [2018-04-06 20:13:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17626 states. [2018-04-06 20:13:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17626 states to 17626 states and 20906 transitions. [2018-04-06 20:13:48,369 INFO L78 Accepts]: Start accepts. Automaton has 17626 states and 20906 transitions. Word has length 278 [2018-04-06 20:13:48,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:48,369 INFO L459 AbstractCegarLoop]: Abstraction has 17626 states and 20906 transitions. [2018-04-06 20:13:48,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-06 20:13:48,369 INFO L276 IsEmpty]: Start isEmpty. Operand 17626 states and 20906 transitions. [2018-04-06 20:13:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-04-06 20:13:48,376 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:48,376 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:48,376 INFO L408 AbstractCegarLoop]: === Iteration 37 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:48,376 INFO L82 PathProgramCache]: Analyzing trace with hash 430512857, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:48,381 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:48,479 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:48,607 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 13 treesize of output 10 [2018-04-06 20:13:48,608 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 10 treesize of output 9 [2018-04-06 20:13:48,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-06 20:13:48,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-06 20:13:48,621 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,622 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,628 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:33, output treesize:25 [2018-04-06 20:13:48,680 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 15 treesize of output 11 [2018-04-06 20:13:48,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-06 20:13:48,686 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,688 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,692 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 15 treesize of output 11 [2018-04-06 20:13:48,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-06 20:13:48,694 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,702 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 20:13:48,705 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-04-06 20:13:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 117 proven. 404 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-06 20:13:48,842 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 31 proven. 490 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-06 20:13:49,449 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 20:13:49,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 32 [2018-04-06 20:13:49,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-06 20:13:49,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-06 20:13:49,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2018-04-06 20:13:49,451 INFO L87 Difference]: Start difference. First operand 17626 states and 20906 transitions. Second operand 32 states. [2018-04-06 20:13:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 20:13:55,978 INFO L93 Difference]: Finished difference Result 25856 states and 31023 transitions. [2018-04-06 20:13:55,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-04-06 20:13:55,979 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 286 [2018-04-06 20:13:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 20:13:56,023 INFO L225 Difference]: With dead ends: 25856 [2018-04-06 20:13:56,023 INFO L226 Difference]: Without dead ends: 25748 [2018-04-06 20:13:56,037 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 560 SyntacticMatches, 3 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4123 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1811, Invalid=11071, Unknown=0, NotChecked=0, Total=12882 [2018-04-06 20:13:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25748 states. [2018-04-06 20:13:57,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25748 to 23520. [2018-04-06 20:13:57,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23520 states. [2018-04-06 20:13:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23520 states to 23520 states and 28023 transitions. [2018-04-06 20:13:57,705 INFO L78 Accepts]: Start accepts. Automaton has 23520 states and 28023 transitions. Word has length 286 [2018-04-06 20:13:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 20:13:57,705 INFO L459 AbstractCegarLoop]: Abstraction has 23520 states and 28023 transitions. [2018-04-06 20:13:57,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-06 20:13:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 23520 states and 28023 transitions. [2018-04-06 20:13:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-04-06 20:13:57,711 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 20:13:57,711 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 20:13:57,711 INFO L408 AbstractCegarLoop]: === Iteration 38 === [__U_MULTI_flockfree_____true_valid_memsafety_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr7RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr3RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr1RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr5RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr0RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr2RequiresViolation, __U_MULTI_flockfree_____true_valid_memsafety_i__popErr4RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-06 20:13:57,711 INFO L82 PathProgramCache]: Analyzing trace with hash 460995295, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 20:13:57,716 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 20:13:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 20:13:57,812 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 20:13:57,877 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:13:57,878 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 5 [2018-04-06 20:13:57,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:57,882 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. [2018-04-06 20:13:57,882 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-06 20:13:57,922 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:13:57,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 5 [2018-04-06 20:13:57,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:57,926 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. [2018-04-06 20:13:57,927 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-06 20:13:57,967 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:13:57,967 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 5 [2018-04-06 20:13:57,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:57,970 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. [2018-04-06 20:13:57,971 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-06 20:13:58,002 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:13:58,002 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 5 [2018-04-06 20:13:58,003 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:58,005 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. [2018-04-06 20:13:58,006 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-06 20:13:58,033 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 20:13:58,034 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 5 [2018-04-06 20:13:58,034 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 20:13:58,037 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. [2018-04-06 20:13:58,037 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-06 20:13:58,087 WARN L1033 $PredicateComparison]: unable to prove that (exists ((~__U_MULTI_flockfree_____true_valid_memsafety_i__garbage~0.base Int)) (and (= (select |c_old(#valid)| ~__U_MULTI_flockfree_____true_valid_memsafety_i__garbage~0.base) 0) (= |c_#valid| (store |c_old(#valid)| ~__U_MULTI_flockfree_____true_valid_memsafety_i__garbage~0.base 0)))) is different from true [2018-04-06 20:13:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 32 proven. 486 refuted. 0 times theorem prover too weak. 228 trivial. 2 not checked. [2018-04-06 20:13:58,213 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 20:13:58,451 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v___U_MULTI_flockfree_____true_valid_memsafety_i__push_#t~malloc2.base_83| Int)) (or (= (store |c_#valid| |v___U_MULTI_flockfree_____true_valid_memsafety_i__push_#t~malloc2.base_83| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v___U_MULTI_flockfree_____true_valid_memsafety_i__push_#t~malloc2.base_83|))))) is different from false [2018-04-06 20:13:58,455 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_22| term size 19 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-06 20:13:58,458 INFO L168 Benchmark]: Toolchain (without parser) took 91697.88 ms. Allocated memory was 308.8 MB in the beginning and 2.4 GB in the end (delta: 2.1 GB). Free memory was 246.4 MB in the beginning and 1.2 GB in the end (delta: -964.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-04-06 20:13:58,459 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 308.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-06 20:13:58,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.52 ms. Allocated memory is still 308.8 MB. Free memory was 246.4 MB in the beginning and 218.5 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 5.3 GB. [2018-04-06 20:13:58,459 INFO L168 Benchmark]: Boogie Preprocessor took 61.43 ms. Allocated memory is still 308.8 MB. Free memory was 218.5 MB in the beginning and 216.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-06 20:13:58,459 INFO L168 Benchmark]: RCFGBuilder took 586.77 ms. Allocated memory was 308.8 MB in the beginning and 448.8 MB in the end (delta: 140.0 MB). Free memory was 216.5 MB in the beginning and 373.5 MB in the end (delta: -157.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 5.3 GB. [2018-04-06 20:13:58,460 INFO L168 Benchmark]: TraceAbstraction took 90694.25 ms. Allocated memory was 448.8 MB in the beginning and 2.4 GB in the end (delta: 1.9 GB). Free memory was 373.5 MB in the beginning and 1.2 GB in the end (delta: -837.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-04-06 20:13:58,461 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 308.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 350.52 ms. Allocated memory is still 308.8 MB. Free memory was 246.4 MB in the beginning and 218.5 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 61.43 ms. Allocated memory is still 308.8 MB. Free memory was 218.5 MB in the beginning and 216.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 586.77 ms. Allocated memory was 308.8 MB in the beginning and 448.8 MB in the end (delta: 140.0 MB). Free memory was 216.5 MB in the beginning and 373.5 MB in the end (delta: -157.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 90694.25 ms. Allocated memory was 448.8 MB in the beginning and 2.4 GB in the end (delta: 1.9 GB). Free memory was 373.5 MB in the beginning and 1.2 GB in the end (delta: -837.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_22| term size 19 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_22| term size 19: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.0_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-06_20-13-58-468.csv Received shutdown request...