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 0.1.23-453dfda-m [2018-04-09 21:00:25,689 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 21:00:25,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 21:00:25,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 21:00:25,707 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 21:00:25,708 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 21:00:25,709 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 21:00:25,711 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 21:00:25,713 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 21:00:25,714 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 21:00:25,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 21:00:25,715 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 21:00:25,716 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 21:00:25,717 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 21:00:25,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 21:00:25,720 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 21:00:25,722 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 21:00:25,724 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 21:00:25,725 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 21:00:25,727 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 21:00:25,729 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-09 21:00:25,736 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 [2018-04-09 21:00:25,782 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 21:00:25,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 21:00:25,782 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 21:00:25,782 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 21:00:25,783 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 21:00:25,783 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 21:00:25,783 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 21:00:25,784 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 21:00:25,784 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 21:00:25,784 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 21:00:25,784 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 21:00:25,784 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 21:00:25,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 21:00:25,785 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 21:00:25,785 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 21:00:25,785 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 21:00:25,785 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 21:00:25,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 21:00:25,786 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 21:00:25,786 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 21:00:25,786 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 21:00:25,786 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 21:00:25,787 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 21:00:25,787 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 21:00:25,787 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 21:00:25,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 21:00:25,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 21:00:25,787 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 21:00:25,788 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 21:00:25,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 21:00:25,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 21:00:25,788 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 21:00:25,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:00:25,788 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 21:00:25,789 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 21:00:25,789 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 21:00:25,790 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 21:00:25,790 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 21:00:25,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 21:00:25,836 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 21:00:25,841 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 21:00:25,843 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 21:00:25,843 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 21:00:25,844 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 [2018-04-09 21:00:26,197 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG907f27039 [2018-04-09 21:00:26,375 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 21:00:26,375 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 21:00:26,376 INFO L168 CDTParser]: Scanning lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,386 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 21:00:26,386 INFO L215 ultiparseSymbolTable]: [2018-04-09 21:00:26,386 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 21:00:26,386 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____true_valid_memsafety_i__pop ('pop') in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,386 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____true_valid_memsafety_i__push ('push') in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,386 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,386 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 21:00:26,386 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____off64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____qaddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____blksize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__blksize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____caddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fd_set in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__sigset_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____rlim64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 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 [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__garbage in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_char in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,387 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ulong in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__mode_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pc1 in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 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 [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fsblkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__clock_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__daddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_short in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____id_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pc4 in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__key_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____dev_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,388 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 [2018-04-09 21:00:26,388 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 [2018-04-09 21:00:26,389 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 [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_long in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__size_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____ino_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____pid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____intptr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 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 [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____mode_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____gid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____timer_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____sigset_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_int in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,389 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__gid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__caddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____quad_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_short in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__div_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____suseconds_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_long in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 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 [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____rlim_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__uid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,390 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 [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____socklen_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,391 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 [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__lldiv_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,391 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 [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__blkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__u_char in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__off_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,391 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____clockid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,392 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__quad_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,392 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 [2018-04-09 21:00:26,392 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 [2018-04-09 21:00:26,392 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,392 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,392 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 [2018-04-09 21:00:26,392 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__wchar_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,392 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__uint in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ssize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__nlink_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__loff_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsblkcnt64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____nlink_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____daddr_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____clock_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,393 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____blkcnt64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 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 [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int32_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__suseconds_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__pthread_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____ssize_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 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 [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fd_mask in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fsid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,394 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__timer_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__clockid_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____loff_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____int8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____off_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fd_mask in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__fsfilcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____WAIT_STATUS in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,395 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 [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ino_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint16_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsfilcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ushort in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____ino64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____time_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__int8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,396 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 [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____key_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__time_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__S in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____uint8_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__ldiv_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__register_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__id_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,397 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____swblk_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____useconds_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsfilcnt64_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i__dev_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 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 [2018-04-09 21:00:26,398 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____blkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 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 [2018-04-09 21:00:26,398 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____u_int in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____true_valid_memsafety_i____fsblkcnt_t in lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:26,398 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 [2018-04-09 21:00:26,415 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG907f27039 [2018-04-09 21:00:26,421 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 21:00:26,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 21:00:26,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 21:00:26,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 21:00:26,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 21:00:26,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742324e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26, skipping insertion in model container [2018-04-09 21:00:26,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,450 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 21:00:26,481 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 21:00:26,649 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 21:00:26,698 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 21:00:26,707 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-04-09 21:00:26,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26 WrapperNode [2018-04-09 21:00:26,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 21:00:26,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 21:00:26,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 21:00:26,761 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 21:00:26,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (1/1) ... [2018-04-09 21:00:26,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 21:00:26,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 21:00:26,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 21:00:26,827 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 21:00:26,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (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 [2018-04-09 21:00:26,953 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 21:00:26,954 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 21:00:26,954 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__push [2018-04-09 21:00:26,954 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__pop [2018-04-09 21:00:26,954 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 21:00:26,954 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-09 21:00:26,954 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-09 21:00:26,954 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-09 21:00:26,954 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-09 21:00:26,954 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-09 21:00:26,955 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-09 21:00:26,956 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-09 21:00:26,957 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-09 21:00:26,958 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-09 21:00:26,959 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-09 21:00:26,960 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-09 21:00:26,961 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-09 21:00:26,962 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-09 21:00:26,963 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-09 21:00:26,964 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-09 21:00:26,965 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-09 21:00:26,966 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__push [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 21:00:26,967 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____true_valid_memsafety_i__pop [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 21:00:26,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 21:00:26,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 21:00:26,969 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-09 21:00:27,428 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 21:00:27,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 09:00:27 BoogieIcfgContainer [2018-04-09 21:00:27,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 21:00:27,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 21:00:27,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 21:00:27,432 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 21:00:27,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 09:00:26" (1/3) ... [2018-04-09 21:00:27,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d55e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 09:00:27, skipping insertion in model container [2018-04-09 21:00:27,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:00:26" (2/3) ... [2018-04-09 21:00:27,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d55e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 09:00:27, skipping insertion in model container [2018-04-09 21:00:27,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 09:00:27" (3/3) ... [2018-04-09 21:00:27,435 INFO L107 eAbstractionObserver]: Analyzing ICFG lockfree-3.0_true-valid-memsafety.i [2018-04-09 21:00:27,442 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 21:00:27,449 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-04-09 21:00:27,490 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 21:00:27,491 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 21:00:27,491 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 21:00:27,491 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 21:00:27,491 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 21:00:27,491 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 21:00:27,491 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 21:00:27,491 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 21:00:27,491 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 21:00:27,492 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 21:00:27,510 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2018-04-09 21:00:27,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-09 21:00:27,517 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:27,519 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:00:27,519 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]=== [2018-04-09 21:00:27,524 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 [2018-04-09 21:00:27,535 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:27,601 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:27,616 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:27,671 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:27,672 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-09 21:00:27,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-09 21:00:27,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-09 21:00:27,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-09 21:00:27,686 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2018-04-09 21:00:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:27,711 INFO L93 Difference]: Finished difference Result 143 states and 163 transitions. [2018-04-09 21:00:27,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-09 21:00:27,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-04-09 21:00:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:27,727 INFO L225 Difference]: With dead ends: 143 [2018-04-09 21:00:27,727 INFO L226 Difference]: Without dead ends: 121 [2018-04-09 21:00:27,731 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 [2018-04-09 21:00:27,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-04-09 21:00:27,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-04-09 21:00:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-04-09 21:00:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2018-04-09 21:00:27,772 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 19 [2018-04-09 21:00:27,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:27,772 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2018-04-09 21:00:27,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-09 21:00:27,773 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2018-04-09 21:00:27,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-09 21:00:27,774 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:27,774 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] [2018-04-09 21:00:27,774 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]=== [2018-04-09 21:00:27,774 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 [2018-04-09 21:00:27,780 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:27,820 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:27,829 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:27,881 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:27,881 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 21:00:27,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-09 21:00:27,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-09 21:00:27,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 21:00:27,884 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 3 states. [2018-04-09 21:00:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:27,908 INFO L93 Difference]: Finished difference Result 140 states and 158 transitions. [2018-04-09 21:00:27,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 21:00:27,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-04-09 21:00:27,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:27,911 INFO L225 Difference]: With dead ends: 140 [2018-04-09 21:00:27,911 INFO L226 Difference]: Without dead ends: 122 [2018-04-09 21:00:27,912 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 [2018-04-09 21:00:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-09 21:00:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-04-09 21:00:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-04-09 21:00:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2018-04-09 21:00:27,924 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 24 [2018-04-09 21:00:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:27,925 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2018-04-09 21:00:27,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-09 21:00:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2018-04-09 21:00:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-09 21:00:27,926 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:27,926 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] [2018-04-09 21:00:27,926 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]=== [2018-04-09 21:00:27,927 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 [2018-04-09 21:00:27,933 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:27,970 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,023 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,086 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:28,086 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 21:00:28,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-09 21:00:28,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-09 21:00:28,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 21:00:28,087 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand 3 states. [2018-04-09 21:00:28,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:28,137 INFO L93 Difference]: Finished difference Result 230 states and 266 transitions. [2018-04-09 21:00:28,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 21:00:28,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-04-09 21:00:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:28,140 INFO L225 Difference]: With dead ends: 230 [2018-04-09 21:00:28,141 INFO L226 Difference]: Without dead ends: 214 [2018-04-09 21:00:28,141 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 [2018-04-09 21:00:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-04-09 21:00:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2018-04-09 21:00:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-04-09 21:00:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2018-04-09 21:00:28,163 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 26 [2018-04-09 21:00:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:28,164 INFO L459 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2018-04-09 21:00:28,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-09 21:00:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2018-04-09 21:00:28,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-09 21:00:28,165 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:28,166 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] [2018-04-09 21:00:28,166 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]=== [2018-04-09 21:00:28,166 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 [2018-04-09 21:00:28,176 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:28,236 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,246 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,293 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:28,293 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-09 21:00:28,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-09 21:00:28,294 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-09 21:00:28,294 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 21:00:28,295 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand 3 states. [2018-04-09 21:00:28,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:28,390 INFO L93 Difference]: Finished difference Result 250 states and 308 transitions. [2018-04-09 21:00:28,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 21:00:28,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-04-09 21:00:28,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:28,393 INFO L225 Difference]: With dead ends: 250 [2018-04-09 21:00:28,394 INFO L226 Difference]: Without dead ends: 243 [2018-04-09 21:00:28,394 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 [2018-04-09 21:00:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-04-09 21:00:28,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 232. [2018-04-09 21:00:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-04-09 21:00:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 289 transitions. [2018-04-09 21:00:28,415 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 289 transitions. Word has length 27 [2018-04-09 21:00:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:28,416 INFO L459 AbstractCegarLoop]: Abstraction has 232 states and 289 transitions. [2018-04-09 21:00:28,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-09 21:00:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 289 transitions. [2018-04-09 21:00:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-09 21:00:28,417 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:28,417 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] [2018-04-09 21:00:28,417 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]=== [2018-04-09 21:00:28,418 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 [2018-04-09 21:00:28,424 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:28,465 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,545 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,615 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:28,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-04-09 21:00:28,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 21:00:28,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 21:00:28,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-09 21:00:28,616 INFO L87 Difference]: Start difference. First operand 232 states and 289 transitions. Second operand 8 states. [2018-04-09 21:00:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:28,789 INFO L93 Difference]: Finished difference Result 648 states and 821 transitions. [2018-04-09 21:00:28,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-09 21:00:28,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-04-09 21:00:28,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:28,794 INFO L225 Difference]: With dead ends: 648 [2018-04-09 21:00:28,794 INFO L226 Difference]: Without dead ends: 431 [2018-04-09 21:00:28,797 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-09 21:00:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-04-09 21:00:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 391. [2018-04-09 21:00:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-04-09 21:00:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 503 transitions. [2018-04-09 21:00:28,828 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 503 transitions. Word has length 32 [2018-04-09 21:00:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:28,829 INFO L459 AbstractCegarLoop]: Abstraction has 391 states and 503 transitions. [2018-04-09 21:00:28,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 21:00:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 503 transitions. [2018-04-09 21:00:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-09 21:00:28,830 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:28,830 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] [2018-04-09 21:00:28,830 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]=== [2018-04-09 21:00:28,830 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 [2018-04-09 21:00:28,837 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:28,876 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:28,907 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 [2018-04-09 21:00:28,909 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:00:28,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:00:28,922 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 21:00:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,952 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:28,979 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:28,979 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 21:00:28,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 21:00:28,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 21:00:28,980 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 21:00:28,980 INFO L87 Difference]: Start difference. First operand 391 states and 503 transitions. Second operand 4 states. [2018-04-09 21:00:29,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:29,124 INFO L93 Difference]: Finished difference Result 680 states and 870 transitions. [2018-04-09 21:00:29,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 21:00:29,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-04-09 21:00:29,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:29,130 INFO L225 Difference]: With dead ends: 680 [2018-04-09 21:00:29,130 INFO L226 Difference]: Without dead ends: 676 [2018-04-09 21:00:29,131 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 [2018-04-09 21:00:29,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2018-04-09 21:00:29,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 641. [2018-04-09 21:00:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2018-04-09 21:00:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 831 transitions. [2018-04-09 21:00:29,170 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 831 transitions. Word has length 32 [2018-04-09 21:00:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:29,170 INFO L459 AbstractCegarLoop]: Abstraction has 641 states and 831 transitions. [2018-04-09 21:00:29,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 21:00:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 831 transitions. [2018-04-09 21:00:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-09 21:00:29,171 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:29,172 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] [2018-04-09 21:00:29,172 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]=== [2018-04-09 21:00:29,172 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 [2018-04-09 21:00:29,181 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:29,222 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:29,253 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:29,340 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:29,340 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-09 21:00:29,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 21:00:29,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 21:00:29,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-09 21:00:29,341 INFO L87 Difference]: Start difference. First operand 641 states and 831 transitions. Second operand 6 states. [2018-04-09 21:00:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:29,510 INFO L93 Difference]: Finished difference Result 1455 states and 1881 transitions. [2018-04-09 21:00:29,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-09 21:00:29,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-09 21:00:29,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:29,517 INFO L225 Difference]: With dead ends: 1455 [2018-04-09 21:00:29,518 INFO L226 Difference]: Without dead ends: 829 [2018-04-09 21:00:29,521 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 [2018-04-09 21:00:29,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2018-04-09 21:00:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 648. [2018-04-09 21:00:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2018-04-09 21:00:29,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 839 transitions. [2018-04-09 21:00:29,567 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 839 transitions. Word has length 32 [2018-04-09 21:00:29,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:29,567 INFO L459 AbstractCegarLoop]: Abstraction has 648 states and 839 transitions. [2018-04-09 21:00:29,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 21:00:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 839 transitions. [2018-04-09 21:00:29,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-09 21:00:29,569 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:29,569 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] [2018-04-09 21:00:29,569 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]=== [2018-04-09 21:00:29,569 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 [2018-04-09 21:00:29,580 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:29,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:29,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 21:00:29,636 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:00:29,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:00:29,647 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 21:00:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:29,669 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:29,709 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:29,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-09 21:00:29,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 21:00:29,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 21:00:29,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 21:00:29,710 INFO L87 Difference]: Start difference. First operand 648 states and 839 transitions. Second operand 6 states. [2018-04-09 21:00:30,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:30,061 INFO L93 Difference]: Finished difference Result 1161 states and 1478 transitions. [2018-04-09 21:00:30,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 21:00:30,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-04-09 21:00:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:30,067 INFO L225 Difference]: With dead ends: 1161 [2018-04-09 21:00:30,067 INFO L226 Difference]: Without dead ends: 1157 [2018-04-09 21:00:30,068 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 [2018-04-09 21:00:30,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2018-04-09 21:00:30,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1096. [2018-04-09 21:00:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2018-04-09 21:00:30,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1416 transitions. [2018-04-09 21:00:30,135 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1416 transitions. Word has length 34 [2018-04-09 21:00:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:30,135 INFO L459 AbstractCegarLoop]: Abstraction has 1096 states and 1416 transitions. [2018-04-09 21:00:30,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 21:00:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1416 transitions. [2018-04-09 21:00:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-09 21:00:30,136 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:30,136 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] [2018-04-09 21:00:30,137 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]=== [2018-04-09 21:00:30,137 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 [2018-04-09 21:00:30,146 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:30,187 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:30,273 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:30,398 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:30,399 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2018-04-09 21:00:30,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-09 21:00:30,399 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-09 21:00:30,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-04-09 21:00:30,400 INFO L87 Difference]: Start difference. First operand 1096 states and 1416 transitions. Second operand 12 states. [2018-04-09 21:00:30,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:30,848 INFO L93 Difference]: Finished difference Result 4018 states and 5210 transitions. [2018-04-09 21:00:30,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-09 21:00:30,849 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-04-09 21:00:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:30,864 INFO L225 Difference]: With dead ends: 4018 [2018-04-09 21:00:30,864 INFO L226 Difference]: Without dead ends: 2940 [2018-04-09 21:00:30,869 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2018-04-09 21:00:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2018-04-09 21:00:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2880. [2018-04-09 21:00:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-04-09 21:00:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3640 transitions. [2018-04-09 21:00:31,050 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3640 transitions. Word has length 36 [2018-04-09 21:00:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:31,051 INFO L459 AbstractCegarLoop]: Abstraction has 2880 states and 3640 transitions. [2018-04-09 21:00:31,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-09 21:00:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3640 transitions. [2018-04-09 21:00:31,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-09 21:00:31,052 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:31,052 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] [2018-04-09 21:00:31,053 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]=== [2018-04-09 21:00:31,053 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 [2018-04-09 21:00:31,065 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:31,113 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:31,184 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:31,352 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:31,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-04-09 21:00:31,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 21:00:31,353 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 21:00:31,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-09 21:00:31,353 INFO L87 Difference]: Start difference. First operand 2880 states and 3640 transitions. Second operand 9 states. [2018-04-09 21:00:31,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:31,717 INFO L93 Difference]: Finished difference Result 6762 states and 8638 transitions. [2018-04-09 21:00:31,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-09 21:00:31,717 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-04-09 21:00:31,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:31,736 INFO L225 Difference]: With dead ends: 6762 [2018-04-09 21:00:31,736 INFO L226 Difference]: Without dead ends: 3900 [2018-04-09 21:00:31,745 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-09 21:00:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2018-04-09 21:00:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3768. [2018-04-09 21:00:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3768 states. [2018-04-09 21:00:31,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4728 transitions. [2018-04-09 21:00:31,944 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4728 transitions. Word has length 49 [2018-04-09 21:00:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:31,945 INFO L459 AbstractCegarLoop]: Abstraction has 3768 states and 4728 transitions. [2018-04-09 21:00:31,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 21:00:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4728 transitions. [2018-04-09 21:00:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-09 21:00:31,947 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:31,947 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] [2018-04-09 21:00:31,947 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]=== [2018-04-09 21:00:31,947 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 [2018-04-09 21:00:31,956 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:32,008 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:32,101 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:32,286 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:32,286 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-04-09 21:00:32,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:00:32,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:00:32,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:00:32,287 INFO L87 Difference]: Start difference. First operand 3768 states and 4728 transitions. Second operand 13 states. [2018-04-09 21:00:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:33,580 INFO L93 Difference]: Finished difference Result 15128 states and 18858 transitions. [2018-04-09 21:00:33,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-09 21:00:33,580 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-04-09 21:00:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:33,620 INFO L225 Difference]: With dead ends: 15128 [2018-04-09 21:00:33,621 INFO L226 Difference]: Without dead ends: 11378 [2018-04-09 21:00:33,632 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2018-04-09 21:00:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2018-04-09 21:00:34,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 8970. [2018-04-09 21:00:34,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8970 states. [2018-04-09 21:00:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8970 states to 8970 states and 10972 transitions. [2018-04-09 21:00:34,089 INFO L78 Accepts]: Start accepts. Automaton has 8970 states and 10972 transitions. Word has length 57 [2018-04-09 21:00:34,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:34,089 INFO L459 AbstractCegarLoop]: Abstraction has 8970 states and 10972 transitions. [2018-04-09 21:00:34,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:00:34,089 INFO L276 IsEmpty]: Start isEmpty. Operand 8970 states and 10972 transitions. [2018-04-09 21:00:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-09 21:00:34,091 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:34,091 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] [2018-04-09 21:00:34,091 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]=== [2018-04-09 21:00:34,091 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 [2018-04-09 21:00:34,101 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:34,154 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:34,255 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:34,428 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:00:34,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2018-04-09 21:00:34,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-09 21:00:34,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-09 21:00:34,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-09 21:00:34,429 INFO L87 Difference]: Start difference. First operand 8970 states and 10972 transitions. Second operand 11 states. [2018-04-09 21:00:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:35,002 INFO L93 Difference]: Finished difference Result 12695 states and 15437 transitions. [2018-04-09 21:00:35,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-09 21:00:35,003 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-04-09 21:00:35,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:35,020 INFO L225 Difference]: With dead ends: 12695 [2018-04-09 21:00:35,020 INFO L226 Difference]: Without dead ends: 3407 [2018-04-09 21:00:35,086 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-04-09 21:00:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2018-04-09 21:00:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 3273. [2018-04-09 21:00:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3273 states. [2018-04-09 21:00:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 3921 transitions. [2018-04-09 21:00:35,239 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 3921 transitions. Word has length 62 [2018-04-09 21:00:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:35,240 INFO L459 AbstractCegarLoop]: Abstraction has 3273 states and 3921 transitions. [2018-04-09 21:00:35,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-09 21:00:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 3921 transitions. [2018-04-09 21:00:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-09 21:00:35,242 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:35,242 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] [2018-04-09 21:00:35,242 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]=== [2018-04-09 21:00:35,242 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 [2018-04-09 21:00:35,254 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:35,317 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:35,464 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:35,700 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:35,700 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-04-09 21:00:35,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:00:35,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:00:35,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:00:35,701 INFO L87 Difference]: Start difference. First operand 3273 states and 3921 transitions. Second operand 13 states. [2018-04-09 21:00:36,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:36,914 INFO L93 Difference]: Finished difference Result 17011 states and 22021 transitions. [2018-04-09 21:00:36,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-09 21:00:36,914 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2018-04-09 21:00:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:36,976 INFO L225 Difference]: With dead ends: 17011 [2018-04-09 21:00:36,976 INFO L226 Difference]: Without dead ends: 13756 [2018-04-09 21:00:36,988 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 [2018-04-09 21:00:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13756 states. [2018-04-09 21:00:37,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13756 to 11194. [2018-04-09 21:00:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11194 states. [2018-04-09 21:00:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11194 states to 11194 states and 13692 transitions. [2018-04-09 21:00:37,415 INFO L78 Accepts]: Start accepts. Automaton has 11194 states and 13692 transitions. Word has length 72 [2018-04-09 21:00:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:37,415 INFO L459 AbstractCegarLoop]: Abstraction has 11194 states and 13692 transitions. [2018-04-09 21:00:37,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:00:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 11194 states and 13692 transitions. [2018-04-09 21:00:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-09 21:00:37,417 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:37,417 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] [2018-04-09 21:00:37,417 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]=== [2018-04-09 21:00:37,417 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 [2018-04-09 21:00:37,425 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:37,468 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:37,750 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:37,921 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:37,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-04-09 21:00:37,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 21:00:37,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 21:00:37,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-04-09 21:00:37,922 INFO L87 Difference]: Start difference. First operand 11194 states and 13692 transitions. Second operand 16 states. [2018-04-09 21:00:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:39,070 INFO L93 Difference]: Finished difference Result 24296 states and 30200 transitions. [2018-04-09 21:00:39,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-09 21:00:39,070 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 76 [2018-04-09 21:00:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:39,102 INFO L225 Difference]: With dead ends: 24296 [2018-04-09 21:00:39,103 INFO L226 Difference]: Without dead ends: 14622 [2018-04-09 21:00:39,120 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2018-04-09 21:00:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14622 states. [2018-04-09 21:00:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14622 to 14160. [2018-04-09 21:00:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14160 states. [2018-04-09 21:00:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14160 states to 14160 states and 17692 transitions. [2018-04-09 21:00:39,534 INFO L78 Accepts]: Start accepts. Automaton has 14160 states and 17692 transitions. Word has length 76 [2018-04-09 21:00:39,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:39,534 INFO L459 AbstractCegarLoop]: Abstraction has 14160 states and 17692 transitions. [2018-04-09 21:00:39,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 21:00:39,534 INFO L276 IsEmpty]: Start isEmpty. Operand 14160 states and 17692 transitions. [2018-04-09 21:00:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-09 21:00:39,536 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:39,536 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] [2018-04-09 21:00:39,536 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]=== [2018-04-09 21:00:39,536 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 [2018-04-09 21:00:39,543 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:39,585 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:39,956 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:40,776 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:40,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-04-09 21:00:40,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-09 21:00:40,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-09 21:00:40,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-04-09 21:00:40,777 INFO L87 Difference]: Start difference. First operand 14160 states and 17692 transitions. Second operand 17 states. [2018-04-09 21:00:41,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:41,972 INFO L93 Difference]: Finished difference Result 30200 states and 39638 transitions. [2018-04-09 21:00:41,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-09 21:00:41,972 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 77 [2018-04-09 21:00:41,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:42,044 INFO L225 Difference]: With dead ends: 30200 [2018-04-09 21:00:42,045 INFO L226 Difference]: Without dead ends: 17560 [2018-04-09 21:00:42,091 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=324, Invalid=936, Unknown=0, NotChecked=0, Total=1260 [2018-04-09 21:00:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17560 states. [2018-04-09 21:00:42,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17560 to 12572. [2018-04-09 21:00:42,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12572 states. [2018-04-09 21:00:42,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12572 states to 12572 states and 15628 transitions. [2018-04-09 21:00:42,771 INFO L78 Accepts]: Start accepts. Automaton has 12572 states and 15628 transitions. Word has length 77 [2018-04-09 21:00:42,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:42,771 INFO L459 AbstractCegarLoop]: Abstraction has 12572 states and 15628 transitions. [2018-04-09 21:00:42,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-09 21:00:42,771 INFO L276 IsEmpty]: Start isEmpty. Operand 12572 states and 15628 transitions. [2018-04-09 21:00:42,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-09 21:00:42,772 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:42,773 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] [2018-04-09 21:00:42,773 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]=== [2018-04-09 21:00:42,773 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 [2018-04-09 21:00:42,778 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:42,826 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:42,884 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:42,993 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:42,993 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-04-09 21:00:42,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:00:42,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:00:42,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:00:42,994 INFO L87 Difference]: Start difference. First operand 12572 states and 15628 transitions. Second operand 13 states. [2018-04-09 21:00:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:43,785 INFO L93 Difference]: Finished difference Result 26417 states and 32847 transitions. [2018-04-09 21:00:43,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-09 21:00:43,785 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 79 [2018-04-09 21:00:43,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:43,813 INFO L225 Difference]: With dead ends: 26417 [2018-04-09 21:00:43,813 INFO L226 Difference]: Without dead ends: 13317 [2018-04-09 21:00:43,829 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 [2018-04-09 21:00:43,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13317 states. [2018-04-09 21:00:44,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13317 to 12507. [2018-04-09 21:00:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12507 states. [2018-04-09 21:00:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12507 states to 12507 states and 15524 transitions. [2018-04-09 21:00:44,207 INFO L78 Accepts]: Start accepts. Automaton has 12507 states and 15524 transitions. Word has length 79 [2018-04-09 21:00:44,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:44,207 INFO L459 AbstractCegarLoop]: Abstraction has 12507 states and 15524 transitions. [2018-04-09 21:00:44,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:00:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 12507 states and 15524 transitions. [2018-04-09 21:00:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-09 21:00:44,209 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:44,209 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] [2018-04-09 21:00:44,209 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]=== [2018-04-09 21:00:44,210 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 [2018-04-09 21:00:44,216 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:44,264 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 21:00:44,363 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:44,522 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:44,522 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 19 [2018-04-09 21:00:44,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-09 21:00:44,562 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-09 21:00:44,562 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-04-09 21:00:44,563 INFO L87 Difference]: Start difference. First operand 12507 states and 15524 transitions. Second operand 19 states. [2018-04-09 21:00:45,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:45,655 INFO L93 Difference]: Finished difference Result 28431 states and 35818 transitions. [2018-04-09 21:00:45,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-09 21:00:45,655 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2018-04-09 21:00:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:45,702 INFO L225 Difference]: With dead ends: 28431 [2018-04-09 21:00:45,702 INFO L226 Difference]: Without dead ends: 15468 [2018-04-09 21:00:45,725 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 [2018-04-09 21:00:45,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15468 states. [2018-04-09 21:00:46,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15468 to 13489. [2018-04-09 21:00:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13489 states. [2018-04-09 21:00:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 16833 transitions. [2018-04-09 21:00:46,426 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 16833 transitions. Word has length 86 [2018-04-09 21:00:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:46,426 INFO L459 AbstractCegarLoop]: Abstraction has 13489 states and 16833 transitions. [2018-04-09 21:00:46,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-09 21:00:46,426 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 16833 transitions. [2018-04-09 21:00:46,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-09 21:00:46,428 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:46,428 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] [2018-04-09 21:00:46,429 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]=== [2018-04-09 21:00:46,429 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 [2018-04-09 21:00:46,439 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:46,483 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-09 21:00:46,515 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-09 21:00:46,583 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-09 21:00:46,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2018-04-09 21:00:46,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-09 21:00:46,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-09 21:00:46,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-09 21:00:46,584 INFO L87 Difference]: Start difference. First operand 13489 states and 16833 transitions. Second operand 11 states. [2018-04-09 21:00:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:46,981 INFO L93 Difference]: Finished difference Result 18475 states and 22813 transitions. [2018-04-09 21:00:46,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-09 21:00:46,981 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2018-04-09 21:00:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:46,990 INFO L225 Difference]: With dead ends: 18475 [2018-04-09 21:00:46,990 INFO L226 Difference]: Without dead ends: 4344 [2018-04-09 21:00:47,008 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2018-04-09 21:00:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2018-04-09 21:00:47,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 2859. [2018-04-09 21:00:47,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2859 states. [2018-04-09 21:00:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 3485 transitions. [2018-04-09 21:00:47,205 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 3485 transitions. Word has length 88 [2018-04-09 21:00:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:47,206 INFO L459 AbstractCegarLoop]: Abstraction has 2859 states and 3485 transitions. [2018-04-09 21:00:47,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-09 21:00:47,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 3485 transitions. [2018-04-09 21:00:47,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-09 21:00:47,208 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:47,209 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] [2018-04-09 21:00:47,209 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]=== [2018-04-09 21:00:47,209 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 [2018-04-09 21:00:47,217 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:47,261 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 21:00:47,331 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:00:47,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:47,530 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2018-04-09 21:00:47,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-09 21:00:47,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-09 21:00:47,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-04-09 21:00:47,531 INFO L87 Difference]: Start difference. First operand 2859 states and 3485 transitions. Second operand 22 states. [2018-04-09 21:00:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:48,542 INFO L93 Difference]: Finished difference Result 8716 states and 11275 transitions. [2018-04-09 21:00:48,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-09 21:00:48,542 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 104 [2018-04-09 21:00:48,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:48,554 INFO L225 Difference]: With dead ends: 8716 [2018-04-09 21:00:48,554 INFO L226 Difference]: Without dead ends: 5916 [2018-04-09 21:00:48,560 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=424, Invalid=1298, Unknown=0, NotChecked=0, Total=1722 [2018-04-09 21:00:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5916 states. [2018-04-09 21:00:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5916 to 3831. [2018-04-09 21:00:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3831 states. [2018-04-09 21:00:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 4879 transitions. [2018-04-09 21:00:48,861 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 4879 transitions. Word has length 104 [2018-04-09 21:00:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:48,861 INFO L459 AbstractCegarLoop]: Abstraction has 3831 states and 4879 transitions. [2018-04-09 21:00:48,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-09 21:00:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 4879 transitions. [2018-04-09 21:00:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-04-09 21:00:48,864 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:48,864 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] [2018-04-09 21:00:48,865 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]=== [2018-04-09 21:00:48,865 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 [2018-04-09 21:00:48,872 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:48,935 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-04-09 21:00:48,986 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 70 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-04-09 21:00:49,120 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:49,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-04-09 21:00:49,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 21:00:49,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 21:00:49,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-04-09 21:00:49,121 INFO L87 Difference]: Start difference. First operand 3831 states and 4879 transitions. Second operand 16 states. [2018-04-09 21:00:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:49,828 INFO L93 Difference]: Finished difference Result 8646 states and 11167 transitions. [2018-04-09 21:00:49,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-09 21:00:49,866 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 118 [2018-04-09 21:00:49,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:49,876 INFO L225 Difference]: With dead ends: 8646 [2018-04-09 21:00:49,876 INFO L226 Difference]: Without dead ends: 4874 [2018-04-09 21:00:49,882 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=699, Unknown=0, NotChecked=0, Total=930 [2018-04-09 21:00:49,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2018-04-09 21:00:50,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4771. [2018-04-09 21:00:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4771 states. [2018-04-09 21:00:50,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 6137 transitions. [2018-04-09 21:00:50,290 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 6137 transitions. Word has length 118 [2018-04-09 21:00:50,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:50,290 INFO L459 AbstractCegarLoop]: Abstraction has 4771 states and 6137 transitions. [2018-04-09 21:00:50,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 21:00:50,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 6137 transitions. [2018-04-09 21:00:50,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-04-09 21:00:50,293 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:50,293 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] [2018-04-09 21:00:50,293 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]=== [2018-04-09 21:00:50,294 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 [2018-04-09 21:00:50,300 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:50,398 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:50,533 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-04-09 21:00:50,533 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:50,739 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-04-09 21:00:50,760 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:50,761 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 21 [2018-04-09 21:00:50,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-09 21:00:50,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-09 21:00:50,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-04-09 21:00:50,761 INFO L87 Difference]: Start difference. First operand 4771 states and 6137 transitions. Second operand 21 states. [2018-04-09 21:00:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:51,861 INFO L93 Difference]: Finished difference Result 11080 states and 14497 transitions. [2018-04-09 21:00:51,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-09 21:00:51,861 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 146 [2018-04-09 21:00:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:51,871 INFO L225 Difference]: With dead ends: 11080 [2018-04-09 21:00:51,871 INFO L226 Difference]: Without dead ends: 6368 [2018-04-09 21:00:51,878 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2018-04-09 21:00:51,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6368 states. [2018-04-09 21:00:52,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6368 to 4811. [2018-04-09 21:00:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4811 states. [2018-04-09 21:00:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6217 transitions. [2018-04-09 21:00:52,177 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6217 transitions. Word has length 146 [2018-04-09 21:00:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:52,177 INFO L459 AbstractCegarLoop]: Abstraction has 4811 states and 6217 transitions. [2018-04-09 21:00:52,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-09 21:00:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6217 transitions. [2018-04-09 21:00:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-04-09 21:00:52,181 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:52,181 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] [2018-04-09 21:00:52,181 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]=== [2018-04-09 21:00:52,181 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 [2018-04-09 21:00:52,194 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:52,272 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 202 proven. 7 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-04-09 21:00:52,332 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:52,481 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 136 proven. 49 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-04-09 21:00:52,503 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:52,503 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-09 21:00:52,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 21:00:52,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 21:00:52,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-09 21:00:52,504 INFO L87 Difference]: Start difference. First operand 4811 states and 6217 transitions. Second operand 16 states. [2018-04-09 21:00:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:53,374 INFO L93 Difference]: Finished difference Result 11622 states and 15337 transitions. [2018-04-09 21:00:53,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-09 21:00:53,375 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 165 [2018-04-09 21:00:53,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:53,387 INFO L225 Difference]: With dead ends: 11622 [2018-04-09 21:00:53,387 INFO L226 Difference]: Without dead ends: 6870 [2018-04-09 21:00:53,395 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2018-04-09 21:00:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6870 states. [2018-04-09 21:00:53,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6870 to 6643. [2018-04-09 21:00:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6643 states. [2018-04-09 21:00:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6643 states to 6643 states and 8609 transitions. [2018-04-09 21:00:53,818 INFO L78 Accepts]: Start accepts. Automaton has 6643 states and 8609 transitions. Word has length 165 [2018-04-09 21:00:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:53,818 INFO L459 AbstractCegarLoop]: Abstraction has 6643 states and 8609 transitions. [2018-04-09 21:00:53,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 21:00:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 6643 states and 8609 transitions. [2018-04-09 21:00:53,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-04-09 21:00:53,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:53,821 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] [2018-04-09 21:00:53,821 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]=== [2018-04-09 21:00:53,821 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 [2018-04-09 21:00:53,827 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:53,889 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 87 proven. 107 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-04-09 21:00:53,930 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 81 proven. 113 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-04-09 21:00:54,079 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:54,080 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-04-09 21:00:54,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-09 21:00:54,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-09 21:00:54,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-04-09 21:00:54,080 INFO L87 Difference]: Start difference. First operand 6643 states and 8609 transitions. Second operand 12 states. [2018-04-09 21:00:55,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:55,094 INFO L93 Difference]: Finished difference Result 18360 states and 24107 transitions. [2018-04-09 21:00:55,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-09 21:00:55,129 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 165 [2018-04-09 21:00:55,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:55,150 INFO L225 Difference]: With dead ends: 18360 [2018-04-09 21:00:55,150 INFO L226 Difference]: Without dead ends: 11428 [2018-04-09 21:00:55,162 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 [2018-04-09 21:00:55,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11428 states. [2018-04-09 21:00:55,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11428 to 10909. [2018-04-09 21:00:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10909 states. [2018-04-09 21:00:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10909 states to 10909 states and 14353 transitions. [2018-04-09 21:00:55,801 INFO L78 Accepts]: Start accepts. Automaton has 10909 states and 14353 transitions. Word has length 165 [2018-04-09 21:00:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:55,801 INFO L459 AbstractCegarLoop]: Abstraction has 10909 states and 14353 transitions. [2018-04-09 21:00:55,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-09 21:00:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 10909 states and 14353 transitions. [2018-04-09 21:00:55,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-04-09 21:00:55,803 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:55,804 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] [2018-04-09 21:00:55,804 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]=== [2018-04-09 21:00:55,804 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 [2018-04-09 21:00:55,810 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:55,895 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 208 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-04-09 21:00:56,029 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 156 proven. 36 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-04-09 21:00:56,201 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:56,201 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-09 21:00:56,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-09 21:00:56,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-09 21:00:56,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-09 21:00:56,202 INFO L87 Difference]: Start difference. First operand 10909 states and 14353 transitions. Second operand 15 states. [2018-04-09 21:00:57,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:00:57,592 INFO L93 Difference]: Finished difference Result 24896 states and 32807 transitions. [2018-04-09 21:00:57,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-09 21:00:57,592 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 167 [2018-04-09 21:00:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:00:57,615 INFO L225 Difference]: With dead ends: 24896 [2018-04-09 21:00:57,615 INFO L226 Difference]: Without dead ends: 14046 [2018-04-09 21:00:57,629 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 325 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2018-04-09 21:00:57,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14046 states. [2018-04-09 21:00:58,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14046 to 12437. [2018-04-09 21:00:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12437 states. [2018-04-09 21:00:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12437 states to 12437 states and 16299 transitions. [2018-04-09 21:00:58,392 INFO L78 Accepts]: Start accepts. Automaton has 12437 states and 16299 transitions. Word has length 167 [2018-04-09 21:00:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:00:58,392 INFO L459 AbstractCegarLoop]: Abstraction has 12437 states and 16299 transitions. [2018-04-09 21:00:58,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-09 21:00:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 12437 states and 16299 transitions. [2018-04-09 21:00:58,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-04-09 21:00:58,395 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:00:58,396 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] [2018-04-09 21:00:58,396 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]=== [2018-04-09 21:00:58,396 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 [2018-04-09 21:00:58,401 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:00:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:00:58,458 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:00:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 236 proven. 8 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-04-09 21:00:58,566 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:00:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 154 proven. 58 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-04-09 21:00:58,710 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:00:58,711 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-09 21:00:58,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-09 21:00:58,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-09 21:00:58,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-09 21:00:58,712 INFO L87 Difference]: Start difference. First operand 12437 states and 16299 transitions. Second operand 15 states. [2018-04-09 21:01:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:00,032 INFO L93 Difference]: Finished difference Result 26424 states and 34625 transitions. [2018-04-09 21:01:00,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-09 21:01:00,032 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 172 [2018-04-09 21:01:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:00,071 INFO L225 Difference]: With dead ends: 26424 [2018-04-09 21:01:00,071 INFO L226 Difference]: Without dead ends: 14046 [2018-04-09 21:01:00,096 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 334 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-04-09 21:01:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14046 states. [2018-04-09 21:01:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14046 to 13965. [2018-04-09 21:01:01,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13965 states. [2018-04-09 21:01:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13965 states to 13965 states and 18183 transitions. [2018-04-09 21:01:01,121 INFO L78 Accepts]: Start accepts. Automaton has 13965 states and 18183 transitions. Word has length 172 [2018-04-09 21:01:01,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:01,121 INFO L459 AbstractCegarLoop]: Abstraction has 13965 states and 18183 transitions. [2018-04-09 21:01:01,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-09 21:01:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 13965 states and 18183 transitions. [2018-04-09 21:01:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-09 21:01:01,125 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:01,125 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] [2018-04-09 21:01:01,125 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]=== [2018-04-09 21:01:01,125 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 [2018-04-09 21:01:01,131 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:01,206 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 150 proven. 114 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-04-09 21:01:01,306 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 152 proven. 112 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-04-09 21:01:01,492 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:01,492 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-04-09 21:01:01,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-09 21:01:01,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-09 21:01:01,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-04-09 21:01:01,493 INFO L87 Difference]: Start difference. First operand 13965 states and 18183 transitions. Second operand 15 states. [2018-04-09 21:01:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:03,896 INFO L93 Difference]: Finished difference Result 23318 states and 31010 transitions. [2018-04-09 21:01:03,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-09 21:01:03,896 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 181 [2018-04-09 21:01:03,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:03,939 INFO L225 Difference]: With dead ends: 23318 [2018-04-09 21:01:03,939 INFO L226 Difference]: Without dead ends: 23315 [2018-04-09 21:01:03,952 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 [2018-04-09 21:01:03,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23315 states. [2018-04-09 21:01:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23315 to 20998. [2018-04-09 21:01:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20998 states. [2018-04-09 21:01:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20998 states to 20998 states and 27957 transitions. [2018-04-09 21:01:05,254 INFO L78 Accepts]: Start accepts. Automaton has 20998 states and 27957 transitions. Word has length 181 [2018-04-09 21:01:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:05,255 INFO L459 AbstractCegarLoop]: Abstraction has 20998 states and 27957 transitions. [2018-04-09 21:01:05,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-09 21:01:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 20998 states and 27957 transitions. [2018-04-09 21:01:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-09 21:01:05,258 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:05,258 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] [2018-04-09 21:01:05,258 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]=== [2018-04-09 21:01:05,259 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 [2018-04-09 21:01:05,264 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:05,335 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-04-09 21:01:05,524 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:05,750 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 [2018-04-09 21:01:05,750 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:05,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:05,751 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2018-04-09 21:01:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-04-09 21:01:05,858 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:05,859 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2018-04-09 21:01:05,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-09 21:01:05,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-09 21:01:05,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2018-04-09 21:01:05,860 INFO L87 Difference]: Start difference. First operand 20998 states and 27957 transitions. Second operand 21 states. [2018-04-09 21:01:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:10,068 INFO L93 Difference]: Finished difference Result 35294 states and 47304 transitions. [2018-04-09 21:01:10,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-09 21:01:10,069 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 181 [2018-04-09 21:01:10,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:10,137 INFO L225 Difference]: With dead ends: 35294 [2018-04-09 21:01:10,138 INFO L226 Difference]: Without dead ends: 35291 [2018-04-09 21:01:10,156 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 [2018-04-09 21:01:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35291 states. [2018-04-09 21:01:12,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35291 to 33484. [2018-04-09 21:01:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33484 states. [2018-04-09 21:01:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33484 states to 33484 states and 44963 transitions. [2018-04-09 21:01:12,209 INFO L78 Accepts]: Start accepts. Automaton has 33484 states and 44963 transitions. Word has length 181 [2018-04-09 21:01:12,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:12,210 INFO L459 AbstractCegarLoop]: Abstraction has 33484 states and 44963 transitions. [2018-04-09 21:01:12,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-09 21:01:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 33484 states and 44963 transitions. [2018-04-09 21:01:12,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-04-09 21:01:12,213 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:12,213 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] [2018-04-09 21:01:12,213 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]=== [2018-04-09 21:01:12,214 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 [2018-04-09 21:01:12,221 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:12,280 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 230 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-04-09 21:01:12,364 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 136 proven. 76 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-04-09 21:01:12,506 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:12,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-09 21:01:12,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-09 21:01:12,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-09 21:01:12,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-09 21:01:12,507 INFO L87 Difference]: Start difference. First operand 33484 states and 44963 transitions. Second operand 15 states. [2018-04-09 21:01:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:14,641 INFO L93 Difference]: Finished difference Result 61184 states and 81867 transitions. [2018-04-09 21:01:14,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-09 21:01:14,641 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 179 [2018-04-09 21:01:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:14,687 INFO L225 Difference]: With dead ends: 61184 [2018-04-09 21:01:14,687 INFO L226 Difference]: Without dead ends: 27609 [2018-04-09 21:01:14,723 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 348 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2018-04-09 21:01:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27609 states. [2018-04-09 21:01:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27609 to 23753. [2018-04-09 21:01:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23753 states. [2018-04-09 21:01:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23753 states to 23753 states and 31583 transitions. [2018-04-09 21:01:16,078 INFO L78 Accepts]: Start accepts. Automaton has 23753 states and 31583 transitions. Word has length 179 [2018-04-09 21:01:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:16,078 INFO L459 AbstractCegarLoop]: Abstraction has 23753 states and 31583 transitions. [2018-04-09 21:01:16,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-09 21:01:16,078 INFO L276 IsEmpty]: Start isEmpty. Operand 23753 states and 31583 transitions. [2018-04-09 21:01:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-04-09 21:01:16,081 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:16,081 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] [2018-04-09 21:01:16,081 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]=== [2018-04-09 21:01:16,081 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 [2018-04-09 21:01:16,086 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:16,151 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 196 proven. 4 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-04-09 21:01:16,262 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 102 proven. 90 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2018-04-09 21:01:16,407 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:16,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-04-09 21:01:16,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:01:16,422 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:01:16,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:01:16,422 INFO L87 Difference]: Start difference. First operand 23753 states and 31583 transitions. Second operand 13 states. [2018-04-09 21:01:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:17,773 INFO L93 Difference]: Finished difference Result 38112 states and 49613 transitions. [2018-04-09 21:01:17,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-09 21:01:17,773 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 188 [2018-04-09 21:01:17,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:17,794 INFO L225 Difference]: With dead ends: 38112 [2018-04-09 21:01:17,794 INFO L226 Difference]: Without dead ends: 13865 [2018-04-09 21:01:17,822 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 369 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2018-04-09 21:01:17,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2018-04-09 21:01:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 13126. [2018-04-09 21:01:18,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13126 states. [2018-04-09 21:01:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13126 states to 13126 states and 16410 transitions. [2018-04-09 21:01:18,492 INFO L78 Accepts]: Start accepts. Automaton has 13126 states and 16410 transitions. Word has length 188 [2018-04-09 21:01:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:18,493 INFO L459 AbstractCegarLoop]: Abstraction has 13126 states and 16410 transitions. [2018-04-09 21:01:18,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:01:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 13126 states and 16410 transitions. [2018-04-09 21:01:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-04-09 21:01:18,498 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:18,499 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] [2018-04-09 21:01:18,499 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]=== [2018-04-09 21:01:18,499 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 [2018-04-09 21:01:18,504 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:18,590 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 218 proven. 7 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-04-09 21:01:18,665 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-04-09 21:01:18,831 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:18,831 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-09 21:01:18,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 21:01:18,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 21:01:18,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-09 21:01:18,832 INFO L87 Difference]: Start difference. First operand 13126 states and 16410 transitions. Second operand 16 states. [2018-04-09 21:01:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:19,994 INFO L93 Difference]: Finished difference Result 26212 states and 32566 transitions. [2018-04-09 21:01:19,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-09 21:01:19,994 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 244 [2018-04-09 21:01:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:20,012 INFO L225 Difference]: With dead ends: 26212 [2018-04-09 21:01:20,012 INFO L226 Difference]: Without dead ends: 11443 [2018-04-09 21:01:20,030 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2018-04-09 21:01:20,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2018-04-09 21:01:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 11080. [2018-04-09 21:01:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11080 states. [2018-04-09 21:01:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11080 states to 11080 states and 13174 transitions. [2018-04-09 21:01:20,783 INFO L78 Accepts]: Start accepts. Automaton has 11080 states and 13174 transitions. Word has length 244 [2018-04-09 21:01:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:20,784 INFO L459 AbstractCegarLoop]: Abstraction has 11080 states and 13174 transitions. [2018-04-09 21:01:20,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 21:01:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 11080 states and 13174 transitions. [2018-04-09 21:01:20,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-04-09 21:01:20,787 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:20,788 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] [2018-04-09 21:01:20,788 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]=== [2018-04-09 21:01:20,788 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 [2018-04-09 21:01:20,794 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:20,879 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-09 21:01:20,990 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-09 21:01:21,130 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:01:21,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2018-04-09 21:01:21,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-09 21:01:21,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-09 21:01:21,131 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-04-09 21:01:21,132 INFO L87 Difference]: Start difference. First operand 11080 states and 13174 transitions. Second operand 11 states. [2018-04-09 21:01:21,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:21,889 INFO L93 Difference]: Finished difference Result 13035 states and 15822 transitions. [2018-04-09 21:01:21,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-09 21:01:21,889 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2018-04-09 21:01:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:21,909 INFO L225 Difference]: With dead ends: 13035 [2018-04-09 21:01:21,909 INFO L226 Difference]: Without dead ends: 13001 [2018-04-09 21:01:21,916 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 [2018-04-09 21:01:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13001 states. [2018-04-09 21:01:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13001 to 12246. [2018-04-09 21:01:22,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12246 states. [2018-04-09 21:01:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12246 states to 12246 states and 14532 transitions. [2018-04-09 21:01:22,575 INFO L78 Accepts]: Start accepts. Automaton has 12246 states and 14532 transitions. Word has length 248 [2018-04-09 21:01:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:22,576 INFO L459 AbstractCegarLoop]: Abstraction has 12246 states and 14532 transitions. [2018-04-09 21:01:22,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-09 21:01:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 12246 states and 14532 transitions. [2018-04-09 21:01:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-04-09 21:01:22,584 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:22,584 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] [2018-04-09 21:01:22,585 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]=== [2018-04-09 21:01:22,585 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 [2018-04-09 21:01:22,591 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:22,695 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 178 proven. 11 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-09 21:01:22,798 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 178 proven. 11 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-09 21:01:23,094 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:23,094 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-09 21:01:23,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 21:01:23,095 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 21:01:23,095 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-09 21:01:23,095 INFO L87 Difference]: Start difference. First operand 12246 states and 14532 transitions. Second operand 16 states. [2018-04-09 21:01:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:24,520 INFO L93 Difference]: Finished difference Result 21717 states and 25989 transitions. [2018-04-09 21:01:24,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-09 21:01:24,520 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 272 [2018-04-09 21:01:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:24,534 INFO L225 Difference]: With dead ends: 21717 [2018-04-09 21:01:24,534 INFO L226 Difference]: Without dead ends: 9417 [2018-04-09 21:01:24,549 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 [2018-04-09 21:01:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9417 states. [2018-04-09 21:01:25,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9417 to 8755. [2018-04-09 21:01:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8755 states. [2018-04-09 21:01:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8755 states to 8755 states and 10323 transitions. [2018-04-09 21:01:25,049 INFO L78 Accepts]: Start accepts. Automaton has 8755 states and 10323 transitions. Word has length 272 [2018-04-09 21:01:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:25,050 INFO L459 AbstractCegarLoop]: Abstraction has 8755 states and 10323 transitions. [2018-04-09 21:01:25,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 21:01:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 8755 states and 10323 transitions. [2018-04-09 21:01:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-04-09 21:01:25,054 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:25,054 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] [2018-04-09 21:01:25,054 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]=== [2018-04-09 21:01:25,055 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 [2018-04-09 21:01:25,060 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:25,155 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 177 proven. 11 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-09 21:01:25,222 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 175 proven. 13 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2018-04-09 21:01:25,391 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:25,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-04-09 21:01:25,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-09 21:01:25,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-09 21:01:25,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-04-09 21:01:25,393 INFO L87 Difference]: Start difference. First operand 8755 states and 10323 transitions. Second operand 19 states. [2018-04-09 21:01:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:26,770 INFO L93 Difference]: Finished difference Result 10128 states and 12202 transitions. [2018-04-09 21:01:26,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-09 21:01:26,770 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 274 [2018-04-09 21:01:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:26,786 INFO L225 Difference]: With dead ends: 10128 [2018-04-09 21:01:26,786 INFO L226 Difference]: Without dead ends: 10100 [2018-04-09 21:01:26,792 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 [2018-04-09 21:01:26,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2018-04-09 21:01:27,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 7951. [2018-04-09 21:01:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2018-04-09 21:01:27,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 9377 transitions. [2018-04-09 21:01:27,289 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 9377 transitions. Word has length 274 [2018-04-09 21:01:27,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:27,290 INFO L459 AbstractCegarLoop]: Abstraction has 7951 states and 9377 transitions. [2018-04-09 21:01:27,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-09 21:01:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 9377 transitions. [2018-04-09 21:01:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-04-09 21:01:27,294 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:27,294 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] [2018-04-09 21:01:27,294 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]=== [2018-04-09 21:01:27,295 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 [2018-04-09 21:01:27,347 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:27,469 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 230 proven. 326 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-04-09 21:01:27,742 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 220 proven. 336 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-04-09 21:01:28,024 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:28,024 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2018-04-09 21:01:28,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-09 21:01:28,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-09 21:01:28,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-04-09 21:01:28,025 INFO L87 Difference]: Start difference. First operand 7951 states and 9377 transitions. Second operand 20 states. [2018-04-09 21:01:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:31,501 INFO L93 Difference]: Finished difference Result 8991 states and 10564 transitions. [2018-04-09 21:01:31,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-09 21:01:31,501 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 277 [2018-04-09 21:01:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:31,515 INFO L225 Difference]: With dead ends: 8991 [2018-04-09 21:01:31,515 INFO L226 Difference]: Without dead ends: 8989 [2018-04-09 21:01:31,521 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 556 SyntacticMatches, 6 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1517 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1210, Invalid=4490, Unknown=0, NotChecked=0, Total=5700 [2018-04-09 21:01:31,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2018-04-09 21:01:32,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8244. [2018-04-09 21:01:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8244 states. [2018-04-09 21:01:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8244 states to 8244 states and 9707 transitions. [2018-04-09 21:01:32,113 INFO L78 Accepts]: Start accepts. Automaton has 8244 states and 9707 transitions. Word has length 277 [2018-04-09 21:01:32,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:32,113 INFO L459 AbstractCegarLoop]: Abstraction has 8244 states and 9707 transitions. [2018-04-09 21:01:32,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-09 21:01:32,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8244 states and 9707 transitions. [2018-04-09 21:01:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-04-09 21:01:32,118 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:32,119 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] [2018-04-09 21:01:32,119 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]=== [2018-04-09 21:01:32,119 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 [2018-04-09 21:01:32,125 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:32,229 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:32,702 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 128 proven. 390 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-09 21:01:32,702 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 116 proven. 402 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-09 21:01:33,477 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:33,477 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2018-04-09 21:01:33,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-09 21:01:33,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-09 21:01:33,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2018-04-09 21:01:33,478 INFO L87 Difference]: Start difference. First operand 8244 states and 9707 transitions. Second operand 28 states. [2018-04-09 21:01:43,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:43,219 INFO L93 Difference]: Finished difference Result 19598 states and 23188 transitions. [2018-04-09 21:01:43,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-04-09 21:01:43,220 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 277 [2018-04-09 21:01:43,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:43,247 INFO L225 Difference]: With dead ends: 19598 [2018-04-09 21:01:43,247 INFO L226 Difference]: Without dead ends: 19491 [2018-04-09 21:01:43,257 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 568 SyntacticMatches, 9 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6517 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3655, Invalid=16651, Unknown=0, NotChecked=0, Total=20306 [2018-04-09 21:01:43,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19491 states. [2018-04-09 21:01:44,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19491 to 17792. [2018-04-09 21:01:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17792 states. [2018-04-09 21:01:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17792 states to 17792 states and 21106 transitions. [2018-04-09 21:01:44,397 INFO L78 Accepts]: Start accepts. Automaton has 17792 states and 21106 transitions. Word has length 277 [2018-04-09 21:01:44,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:44,397 INFO L459 AbstractCegarLoop]: Abstraction has 17792 states and 21106 transitions. [2018-04-09 21:01:44,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-09 21:01:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 17792 states and 21106 transitions. [2018-04-09 21:01:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-04-09 21:01:44,402 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:44,402 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] [2018-04-09 21:01:44,402 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]=== [2018-04-09 21:01:44,403 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 [2018-04-09 21:01:44,409 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:44,503 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 128 proven. 390 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-09 21:01:44,604 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 116 proven. 402 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-09 21:01:44,813 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:44,813 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2018-04-09 21:01:44,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-09 21:01:44,814 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-09 21:01:44,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2018-04-09 21:01:44,814 INFO L87 Difference]: Start difference. First operand 17792 states and 21106 transitions. Second operand 19 states. [2018-04-09 21:01:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:48,182 INFO L93 Difference]: Finished difference Result 35757 states and 42495 transitions. [2018-04-09 21:01:48,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-09 21:01:48,182 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 278 [2018-04-09 21:01:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:48,212 INFO L225 Difference]: With dead ends: 35757 [2018-04-09 21:01:48,213 INFO L226 Difference]: Without dead ends: 18730 [2018-04-09 21:01:48,237 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 [2018-04-09 21:01:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18730 states. [2018-04-09 21:01:49,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18730 to 17626. [2018-04-09 21:01:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17626 states. [2018-04-09 21:01:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17626 states to 17626 states and 20906 transitions. [2018-04-09 21:01:49,389 INFO L78 Accepts]: Start accepts. Automaton has 17626 states and 20906 transitions. Word has length 278 [2018-04-09 21:01:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:49,389 INFO L459 AbstractCegarLoop]: Abstraction has 17626 states and 20906 transitions. [2018-04-09 21:01:49,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-09 21:01:49,389 INFO L276 IsEmpty]: Start isEmpty. Operand 17626 states and 20906 transitions. [2018-04-09 21:01:49,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-04-09 21:01:49,394 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:49,394 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] [2018-04-09 21:01:49,394 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]=== [2018-04-09 21:01:49,394 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 [2018-04-09 21:01:49,459 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:49,559 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:49,698 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 [2018-04-09 21:01:49,700 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 [2018-04-09 21:01:49,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,702 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,709 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 [2018-04-09 21:01:49,711 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 [2018-04-09 21:01:49,711 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,713 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,719 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:33, output treesize:25 [2018-04-09 21:01:49,772 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 [2018-04-09 21:01:49,774 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 [2018-04-09 21:01:49,774 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,780 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 [2018-04-09 21:01:49,782 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 [2018-04-09 21:01:49,782 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,783 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:01:49,786 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-04-09 21:01:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 117 proven. 404 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-09 21:01:49,932 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 31 proven. 490 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-04-09 21:01:50,583 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:01:50,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 32 [2018-04-09 21:01:50,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-09 21:01:50,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-09 21:01:50,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2018-04-09 21:01:50,584 INFO L87 Difference]: Start difference. First operand 17626 states and 20906 transitions. Second operand 32 states. [2018-04-09 21:01:57,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:01:57,187 INFO L93 Difference]: Finished difference Result 25856 states and 31023 transitions. [2018-04-09 21:01:57,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-04-09 21:01:57,188 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 286 [2018-04-09 21:01:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:01:57,231 INFO L225 Difference]: With dead ends: 25856 [2018-04-09 21:01:57,231 INFO L226 Difference]: Without dead ends: 25748 [2018-04-09 21:01:57,245 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 [2018-04-09 21:01:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25748 states. [2018-04-09 21:01:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25748 to 23520. [2018-04-09 21:01:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23520 states. [2018-04-09 21:01:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23520 states to 23520 states and 28023 transitions. [2018-04-09 21:01:58,920 INFO L78 Accepts]: Start accepts. Automaton has 23520 states and 28023 transitions. Word has length 286 [2018-04-09 21:01:58,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:01:58,921 INFO L459 AbstractCegarLoop]: Abstraction has 23520 states and 28023 transitions. [2018-04-09 21:01:58,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-09 21:01:58,921 INFO L276 IsEmpty]: Start isEmpty. Operand 23520 states and 28023 transitions. [2018-04-09 21:01:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-04-09 21:01:58,926 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:01:58,926 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] [2018-04-09 21:01:58,926 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]=== [2018-04-09 21:01:58,927 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 [2018-04-09 21:01:58,934 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:01:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:01:59,033 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:01:59,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:01:59,104 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 [2018-04-09 21:01:59,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:59,107 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. [2018-04-09 21:01:59,107 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-09 21:01:59,149 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:01:59,150 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 [2018-04-09 21:01:59,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:59,153 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. [2018-04-09 21:01:59,153 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-09 21:01:59,181 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:01:59,181 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 [2018-04-09 21:01:59,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:59,185 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. [2018-04-09 21:01:59,185 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-09 21:01:59,211 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:01:59,212 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 [2018-04-09 21:01:59,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:59,215 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. [2018-04-09 21:01:59,215 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-09 21:01:59,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:01:59,242 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 [2018-04-09 21:01:59,242 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:01:59,245 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. [2018-04-09 21:01:59,245 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:9 [2018-04-09 21:01:59,288 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 [2018-04-09 21:01:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 32 proven. 486 refuted. 0 times theorem prover too weak. 228 trivial. 2 not checked. [2018-04-09 21:01:59,408 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:01:59,643 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v___U_MULTI_flockfree_____true_valid_memsafety_i__push_#t~malloc2.base_83| Int)) (or (= (store |c_#valid| |v___U_MULTI_flockfree_____true_valid_memsafety_i__push_#t~malloc2.base_83| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v___U_MULTI_flockfree_____true_valid_memsafety_i__push_#t~malloc2.base_83|))))) is different from false [2018-04-09 21:01:59,647 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_old(#valid)_BEFORE_CALL_22| term size 19 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$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) [2018-04-09 21:01:59,650 INFO L168 Benchmark]: Toolchain (without parser) took 93228.57 ms. Allocated memory was 306.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 243.1 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-04-09 21:01:59,651 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 306.2 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 21:01:59,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.80 ms. Allocated memory is still 306.2 MB. Free memory was 242.1 MB in the beginning and 215.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. [2018-04-09 21:01:59,651 INFO L168 Benchmark]: Boogie Preprocessor took 65.07 ms. Allocated memory is still 306.2 MB. Free memory was 215.9 MB in the beginning and 213.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-09 21:01:59,651 INFO L168 Benchmark]: RCFGBuilder took 601.97 ms. Allocated memory was 306.2 MB in the beginning and 470.8 MB in the end (delta: 164.6 MB). Free memory was 213.9 MB in the beginning and 397.4 MB in the end (delta: -183.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 5.3 GB. [2018-04-09 21:01:59,652 INFO L168 Benchmark]: TraceAbstraction took 92219.99 ms. Allocated memory was 470.8 MB in the beginning and 2.3 GB in the end (delta: 1.9 GB). Free memory was 397.4 MB in the beginning and 1.3 GB in the end (delta: -863.0 MB). Peak memory consumption was 999.8 MB. Max. memory is 5.3 GB. [2018-04-09 21:01:59,653 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 306.2 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 336.80 ms. Allocated memory is still 306.2 MB. Free memory was 242.1 MB in the beginning and 215.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 65.07 ms. Allocated memory is still 306.2 MB. Free memory was 215.9 MB in the beginning and 213.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 601.97 ms. Allocated memory was 306.2 MB in the beginning and 470.8 MB in the end (delta: 164.6 MB). Free memory was 213.9 MB in the beginning and 397.4 MB in the end (delta: -183.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 92219.99 ms. Allocated memory was 470.8 MB in the beginning and 2.3 GB in the end (delta: 1.9 GB). Free memory was 397.4 MB in the beginning and 1.3 GB in the end (delta: -863.0 MB). Peak memory consumption was 999.8 MB. 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-0-2018-04-09_21-01-59-660.csv Received shutdown request...