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-3.3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 20:58:33,054 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 20:58:33,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 20:58:33,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 20:58:33,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 20:58:33,075 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 20:58:33,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 20:58:33,078 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 20:58:33,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 20:58:33,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 20:58:33,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 20:58:33,083 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 20:58:33,084 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 20:58:33,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 20:58:33,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 20:58:33,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 20:58:33,091 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 20:58:33,093 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 20:58:33,094 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 20:58:33,096 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 20:58:33,098 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 20:58:33,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 20:58:33,099 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 20:58:33,100 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 20:58:33,101 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 20:58:33,102 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 20:58:33,102 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 20:58:33,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 20:58:33,104 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 20:58:33,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 20:58:33,105 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 20:58:33,105 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 [2018-03-29 20:58:33,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 20:58:33,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 20:58:33,130 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 20:58:33,130 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 20:58:33,131 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 20:58:33,131 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 20:58:33,131 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 20:58:33,132 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 20:58:33,132 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 20:58:33,132 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 20:58:33,132 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 20:58:33,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 20:58:33,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 20:58:33,133 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 20:58:33,133 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 20:58:33,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 20:58:33,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 20:58:33,134 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 20:58:33,134 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 20:58:33,134 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 20:58:33,134 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 20:58:33,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 20:58:33,135 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 20:58:33,135 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 20:58:33,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 20:58:33,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:58:33,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 20:58:33,136 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 20:58:33,136 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 20:58:33,136 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 20:58:33,136 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 20:58:33,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:58:33,137 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 20:58:33,137 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 20:58:33,138 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 20:58:33,138 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 20:58:33,138 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 20:58:33,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 20:58:33,189 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 20:58:33,194 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 20:58:33,195 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 20:58:33,196 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 20:58:33,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,491 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf3bec29f8 [2018-03-29 20:58:33,675 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 20:58:33,675 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 20:58:33,676 INFO L168 CDTParser]: Scanning lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,687 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 20:58:33,687 INFO L215 ultiparseSymbolTable]: [2018-03-29 20:58:33,687 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 20:58:33,688 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____false_valid_memtrack_i__pop ('pop') in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,688 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,688 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____false_valid_memtrack_i__push ('push') in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,688 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 20:58:33,688 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____mode_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,688 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____intptr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____ssize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__size_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_int64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____time_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsfilcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,689 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_mutexattr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_int in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____timer_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__mode_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__timer_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____nlink_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,690 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__caddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_short in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__gid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pc4 in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ssize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____blkcnt64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__key_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,691 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fd_set in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fsfilcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_short in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pc1 in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____id_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,692 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____sig_atomic_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_char in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____off64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fd_mask in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_int8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__x4 in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_once_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__x1 in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fsblkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__blksize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____clockid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__div_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_long in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____pthread_list_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_cond_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsblkcnt64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_int16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__blkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__quad_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__garbage in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____suseconds_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_char in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__off_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__uid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____socklen_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__lldiv_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____rlim_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__wchar_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_attr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____ino64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_long in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____off_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_barrier_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_quad_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ushort in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____quad_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__daddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____sigset_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____pid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____ino_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____WAIT_STATUS in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,697 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____gid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_spinlock_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____clock_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ulong in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__clockid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_int32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____loff_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fsid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fd_mask in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,698 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__suseconds_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_rwlockattr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____caddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__clock_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_key_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____dev_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsblkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_quad_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,699 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__uint in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__nlink_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_rwlock_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__loff_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__id_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_condattr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__t1 in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____rlim64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__dev_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__sigset_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____qaddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,700 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____blksize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__t4 in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__register_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____daddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_barrierattr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____blkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____key_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_int in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__S in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,701 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__time_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____useconds_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_mutex_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ino_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ldiv_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____swblk_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,702 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsfilcnt64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:33,723 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf3bec29f8 [2018-03-29 20:58:33,727 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 20:58:33,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 20:58:33,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 20:58:33,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 20:58:33,736 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 20:58:33,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:58:33" (1/1) ... [2018-03-29 20:58:33,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5caac6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:33, skipping insertion in model container [2018-03-29 20:58:33,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:58:33" (1/1) ... [2018-03-29 20:58:33,753 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:58:33,785 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:58:33,963 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:58:34,020 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:58:34,029 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-03-29 20:58:34,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34 WrapperNode [2018-03-29 20:58:34,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 20:58:34,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 20:58:34,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 20:58:34,080 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 20:58:34,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (1/1) ... [2018-03-29 20:58:34,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 20:58:34,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 20:58:34,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 20:58:34,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 20:58:34,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (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 [2018-03-29 20:58:34,266 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 20:58:34,266 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 20:58:34,267 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__push [2018-03-29 20:58:34,267 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__pop [2018-03-29 20:58:34,267 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 20:58:34,267 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 20:58:34,268 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 20:58:34,269 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 20:58:34,270 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 20:58:34,271 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 20:58:34,272 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 20:58:34,273 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-03-29 20:58:34,274 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 20:58:34,275 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 20:58:34,276 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 20:58:34,277 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 20:58:34,278 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__push [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 20:58:34,279 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__pop [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 20:58:34,280 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 20:58:34,281 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 20:58:34,785 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 20:58:34,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:58:34 BoogieIcfgContainer [2018-03-29 20:58:34,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 20:58:34,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 20:58:34,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 20:58:34,790 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 20:58:34,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 08:58:33" (1/3) ... [2018-03-29 20:58:34,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7b9c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:58:34, skipping insertion in model container [2018-03-29 20:58:34,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:58:34" (2/3) ... [2018-03-29 20:58:34,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7b9c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:58:34, skipping insertion in model container [2018-03-29 20:58:34,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:58:34" (3/3) ... [2018-03-29 20:58:34,794 INFO L107 eAbstractionObserver]: Analyzing ICFG lockfree-3.3_false-valid-memtrack.i [2018-03-29 20:58:34,804 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 20:58:34,810 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-03-29 20:58:34,853 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 20:58:34,853 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 20:58:34,854 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 20:58:34,854 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 20:58:34,854 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 20:58:34,854 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 20:58:34,854 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 20:58:34,854 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 20:58:34,854 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 20:58:34,855 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 20:58:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2018-03-29 20:58:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 20:58:34,878 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:34,879 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:58:34,879 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:34,883 INFO L82 PathProgramCache]: Analyzing trace with hash 831500316, 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 [2018-03-29 20:58:34,894 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:34,963 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:34,986 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,045 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:35,046 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-29 20:58:35,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-29 20:58:35,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-29 20:58:35,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-29 20:58:35,066 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2018-03-29 20:58:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:35,089 INFO L93 Difference]: Finished difference Result 153 states and 173 transitions. [2018-03-29 20:58:35,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-29 20:58:35,090 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-03-29 20:58:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:35,103 INFO L225 Difference]: With dead ends: 153 [2018-03-29 20:58:35,103 INFO L226 Difference]: Without dead ends: 126 [2018-03-29 20:58:35,108 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 [2018-03-29 20:58:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-03-29 20:58:35,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-03-29 20:58:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-03-29 20:58:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 143 transitions. [2018-03-29 20:58:35,148 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 143 transitions. Word has length 19 [2018-03-29 20:58:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:35,149 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 143 transitions. [2018-03-29 20:58:35,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-29 20:58:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 143 transitions. [2018-03-29 20:58:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-29 20:58:35,150 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:35,150 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] [2018-03-29 20:58:35,150 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:35,150 INFO L82 PathProgramCache]: Analyzing trace with hash -948182125, 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 [2018-03-29 20:58:35,157 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:35,198 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,212 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,251 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:35,251 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:58:35,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-29 20:58:35,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-29 20:58:35,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 20:58:35,254 INFO L87 Difference]: Start difference. First operand 126 states and 143 transitions. Second operand 3 states. [2018-03-29 20:58:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:35,281 INFO L93 Difference]: Finished difference Result 150 states and 168 transitions. [2018-03-29 20:58:35,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 20:58:35,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-03-29 20:58:35,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:35,283 INFO L225 Difference]: With dead ends: 150 [2018-03-29 20:58:35,284 INFO L226 Difference]: Without dead ends: 127 [2018-03-29 20:58:35,284 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 [2018-03-29 20:58:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-03-29 20:58:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-03-29 20:58:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-03-29 20:58:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 144 transitions. [2018-03-29 20:58:35,293 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 144 transitions. Word has length 24 [2018-03-29 20:58:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:35,294 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 144 transitions. [2018-03-29 20:58:35,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-29 20:58:35,294 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 144 transitions. [2018-03-29 20:58:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-29 20:58:35,295 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:35,295 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] [2018-03-29 20:58:35,295 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:35,295 INFO L82 PathProgramCache]: Analyzing trace with hash -334951210, 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 [2018-03-29 20:58:35,301 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:35,345 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,380 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,455 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:35,456 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:58:35,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-29 20:58:35,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-29 20:58:35,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 20:58:35,457 INFO L87 Difference]: Start difference. First operand 127 states and 144 transitions. Second operand 3 states. [2018-03-29 20:58:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:35,501 INFO L93 Difference]: Finished difference Result 240 states and 276 transitions. [2018-03-29 20:58:35,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 20:58:35,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-03-29 20:58:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:35,503 INFO L225 Difference]: With dead ends: 240 [2018-03-29 20:58:35,504 INFO L226 Difference]: Without dead ends: 219 [2018-03-29 20:58:35,504 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 [2018-03-29 20:58:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-03-29 20:58:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 200. [2018-03-29 20:58:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-03-29 20:58:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 245 transitions. [2018-03-29 20:58:35,523 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 245 transitions. Word has length 26 [2018-03-29 20:58:35,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:35,524 INFO L459 AbstractCegarLoop]: Abstraction has 200 states and 245 transitions. [2018-03-29 20:58:35,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-29 20:58:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 245 transitions. [2018-03-29 20:58:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-29 20:58:35,525 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:35,525 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] [2018-03-29 20:58:35,525 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:35,526 INFO L82 PathProgramCache]: Analyzing trace with hash -251404699, 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 [2018-03-29 20:58:35,536 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:35,597 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:35,624 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 [2018-03-29 20:58:35,625 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:58:35,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:58:35,632 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:58:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,671 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:35,713 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:35,713 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:58:35,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:58:35,714 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:58:35,714 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:58:35,714 INFO L87 Difference]: Start difference. First operand 200 states and 245 transitions. Second operand 4 states. [2018-03-29 20:58:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:35,965 INFO L93 Difference]: Finished difference Result 375 states and 466 transitions. [2018-03-29 20:58:35,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 20:58:35,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-03-29 20:58:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:35,970 INFO L225 Difference]: With dead ends: 375 [2018-03-29 20:58:35,970 INFO L226 Difference]: Without dead ends: 371 [2018-03-29 20:58:35,971 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 [2018-03-29 20:58:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-03-29 20:58:35,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 334. [2018-03-29 20:58:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-03-29 20:58:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 426 transitions. [2018-03-29 20:58:35,996 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 426 transitions. Word has length 32 [2018-03-29 20:58:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:35,996 INFO L459 AbstractCegarLoop]: Abstraction has 334 states and 426 transitions. [2018-03-29 20:58:35,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:58:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 426 transitions. [2018-03-29 20:58:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-29 20:58:35,997 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:35,997 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] [2018-03-29 20:58:35,998 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:35,998 INFO L82 PathProgramCache]: Analyzing trace with hash -251404698, 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 [2018-03-29 20:58:36,004 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:36,046 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:36,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:36,101 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:36,192 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:36,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-29 20:58:36,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 20:58:36,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 20:58:36,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:58:36,193 INFO L87 Difference]: Start difference. First operand 334 states and 426 transitions. Second operand 5 states. [2018-03-29 20:58:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:36,348 INFO L93 Difference]: Finished difference Result 988 states and 1266 transitions. [2018-03-29 20:58:36,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:58:36,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-03-29 20:58:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:36,355 INFO L225 Difference]: With dead ends: 988 [2018-03-29 20:58:36,355 INFO L226 Difference]: Without dead ends: 669 [2018-03-29 20:58:36,358 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:58:36,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2018-03-29 20:58:36,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 502. [2018-03-29 20:58:36,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-03-29 20:58:36,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 652 transitions. [2018-03-29 20:58:36,391 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 652 transitions. Word has length 32 [2018-03-29 20:58:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:36,391 INFO L459 AbstractCegarLoop]: Abstraction has 502 states and 652 transitions. [2018-03-29 20:58:36,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 20:58:36,391 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 652 transitions. [2018-03-29 20:58:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-29 20:58:36,392 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:36,393 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] [2018-03-29 20:58:36,393 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:36,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1668850665, 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 [2018-03-29 20:58:36,405 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:36,437 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:36,464 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:36,492 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:36,492 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-29 20:58:36,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-29 20:58:36,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-29 20:58:36,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 20:58:36,493 INFO L87 Difference]: Start difference. First operand 502 states and 652 transitions. Second operand 3 states. [2018-03-29 20:58:36,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:36,599 INFO L93 Difference]: Finished difference Result 562 states and 729 transitions. [2018-03-29 20:58:36,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 20:58:36,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-03-29 20:58:36,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:36,603 INFO L225 Difference]: With dead ends: 562 [2018-03-29 20:58:36,603 INFO L226 Difference]: Without dead ends: 550 [2018-03-29 20:58:36,604 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 20:58:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2018-03-29 20:58:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 537. [2018-03-29 20:58:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2018-03-29 20:58:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 700 transitions. [2018-03-29 20:58:36,629 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 700 transitions. Word has length 32 [2018-03-29 20:58:36,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:36,630 INFO L459 AbstractCegarLoop]: Abstraction has 537 states and 700 transitions. [2018-03-29 20:58:36,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-29 20:58:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 700 transitions. [2018-03-29 20:58:36,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-29 20:58:36,631 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:36,631 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] [2018-03-29 20:58:36,631 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:36,632 INFO L82 PathProgramCache]: Analyzing trace with hash -62843735, 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 [2018-03-29 20:58:36,648 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:36,685 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:36,700 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 6 treesize of output 5 [2018-03-29 20:58:36,701 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:58:36,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:58:36,713 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 20:58:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:36,733 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:36,776 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:36,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-03-29 20:58:36,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 20:58:36,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 20:58:36,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-29 20:58:36,777 INFO L87 Difference]: Start difference. First operand 537 states and 700 transitions. Second operand 6 states. [2018-03-29 20:58:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:36,974 INFO L93 Difference]: Finished difference Result 843 states and 1079 transitions. [2018-03-29 20:58:36,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:58:36,975 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-03-29 20:58:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:36,979 INFO L225 Difference]: With dead ends: 843 [2018-03-29 20:58:36,979 INFO L226 Difference]: Without dead ends: 839 [2018-03-29 20:58:36,980 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 [2018-03-29 20:58:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-03-29 20:58:37,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 780. [2018-03-29 20:58:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-03-29 20:58:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1021 transitions. [2018-03-29 20:58:37,010 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1021 transitions. Word has length 34 [2018-03-29 20:58:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:37,011 INFO L459 AbstractCegarLoop]: Abstraction has 780 states and 1021 transitions. [2018-03-29 20:58:37,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 20:58:37,011 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1021 transitions. [2018-03-29 20:58:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-29 20:58:37,012 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:37,012 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] [2018-03-29 20:58:37,012 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:37,012 INFO L82 PathProgramCache]: Analyzing trace with hash -62566616, 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 [2018-03-29 20:58:37,024 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:37,064 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:37,148 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:37,301 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:37,301 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 11 [2018-03-29 20:58:37,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-03-29 20:58:37,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-03-29 20:58:37,302 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-03-29 20:58:37,302 INFO L87 Difference]: Start difference. First operand 780 states and 1021 transitions. Second operand 11 states. [2018-03-29 20:58:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:37,541 INFO L93 Difference]: Finished difference Result 1929 states and 2567 transitions. [2018-03-29 20:58:37,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 20:58:37,542 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2018-03-29 20:58:37,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:37,549 INFO L225 Difference]: With dead ends: 1929 [2018-03-29 20:58:37,549 INFO L226 Difference]: Without dead ends: 1242 [2018-03-29 20:58:37,553 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-03-29 20:58:37,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2018-03-29 20:58:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1228. [2018-03-29 20:58:37,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2018-03-29 20:58:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1599 transitions. [2018-03-29 20:58:37,621 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1599 transitions. Word has length 34 [2018-03-29 20:58:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:37,621 INFO L459 AbstractCegarLoop]: Abstraction has 1228 states and 1599 transitions. [2018-03-29 20:58:37,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-03-29 20:58:37,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1599 transitions. [2018-03-29 20:58:37,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-03-29 20:58:37,623 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:37,623 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] [2018-03-29 20:58:37,623 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:37,623 INFO L82 PathProgramCache]: Analyzing trace with hash 928594531, 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 [2018-03-29 20:58:37,638 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:37,686 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:37,731 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:37,836 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:37,837 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-29 20:58:37,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:58:37,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:58:37,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:58:37,838 INFO L87 Difference]: Start difference. First operand 1228 states and 1599 transitions. Second operand 9 states. [2018-03-29 20:58:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:38,218 INFO L93 Difference]: Finished difference Result 4681 states and 6073 transitions. [2018-03-29 20:58:38,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-29 20:58:38,220 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-03-29 20:58:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:38,237 INFO L225 Difference]: With dead ends: 4681 [2018-03-29 20:58:38,237 INFO L226 Difference]: Without dead ends: 3468 [2018-03-29 20:58:38,243 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-03-29 20:58:38,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2018-03-29 20:58:38,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3334. [2018-03-29 20:58:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3334 states. [2018-03-29 20:58:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4215 transitions. [2018-03-29 20:58:38,469 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4215 transitions. Word has length 36 [2018-03-29 20:58:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:38,469 INFO L459 AbstractCegarLoop]: Abstraction has 3334 states and 4215 transitions. [2018-03-29 20:58:38,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:58:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4215 transitions. [2018-03-29 20:58:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-29 20:58:38,470 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:38,471 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, 1, 1, 1, 1, 1] [2018-03-29 20:58:38,471 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:38,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1185822231, 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 [2018-03-29 20:58:38,489 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:38,531 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:38,671 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:38,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:38,819 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:38,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-29 20:58:38,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:58:38,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:58:38,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:58:38,821 INFO L87 Difference]: Start difference. First operand 3334 states and 4215 transitions. Second operand 9 states. [2018-03-29 20:58:39,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:39,224 INFO L93 Difference]: Finished difference Result 7467 states and 9528 transitions. [2018-03-29 20:58:39,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 20:58:39,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-03-29 20:58:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:39,247 INFO L225 Difference]: With dead ends: 7467 [2018-03-29 20:58:39,247 INFO L226 Difference]: Without dead ends: 4360 [2018-03-29 20:58:39,256 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-03-29 20:58:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-03-29 20:58:39,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4222. [2018-03-29 20:58:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4222 states. [2018-03-29 20:58:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 5303 transitions. [2018-03-29 20:58:39,477 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 5303 transitions. Word has length 54 [2018-03-29 20:58:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:39,478 INFO L459 AbstractCegarLoop]: Abstraction has 4222 states and 5303 transitions. [2018-03-29 20:58:39,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:58:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 5303 transitions. [2018-03-29 20:58:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-03-29 20:58:39,479 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:39,479 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-03-29 20:58:39,479 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:39,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1435809972, 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 [2018-03-29 20:58:39,488 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:39,542 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:39,645 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:39,921 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:39,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-03-29 20:58:39,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 20:58:39,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 20:58:39,923 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-03-29 20:58:39,923 INFO L87 Difference]: Start difference. First operand 4222 states and 5303 transitions. Second operand 13 states. [2018-03-29 20:58:40,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:40,891 INFO L93 Difference]: Finished difference Result 13021 states and 16390 transitions. [2018-03-29 20:58:40,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-29 20:58:40,892 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2018-03-29 20:58:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:40,935 INFO L225 Difference]: With dead ends: 13021 [2018-03-29 20:58:40,935 INFO L226 Difference]: Without dead ends: 8814 [2018-03-29 20:58:40,951 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2018-03-29 20:58:40,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8814 states. [2018-03-29 20:58:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8814 to 7296. [2018-03-29 20:58:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-03-29 20:58:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 8931 transitions. [2018-03-29 20:58:41,368 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 8931 transitions. Word has length 59 [2018-03-29 20:58:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:41,368 INFO L459 AbstractCegarLoop]: Abstraction has 7296 states and 8931 transitions. [2018-03-29 20:58:41,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 20:58:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 8931 transitions. [2018-03-29 20:58:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-29 20:58:41,370 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:41,370 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] [2018-03-29 20:58:41,371 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:41,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1922865957, 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 [2018-03-29 20:58:41,382 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:41,483 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:41,540 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:41,697 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:58:41,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2018-03-29 20:58:41,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-03-29 20:58:41,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-03-29 20:58:41,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-03-29 20:58:41,698 INFO L87 Difference]: Start difference. First operand 7296 states and 8931 transitions. Second operand 11 states. [2018-03-29 20:58:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:42,241 INFO L93 Difference]: Finished difference Result 9653 states and 11715 transitions. [2018-03-29 20:58:42,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-29 20:58:42,242 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-03-29 20:58:42,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:42,255 INFO L225 Difference]: With dead ends: 9653 [2018-03-29 20:58:42,255 INFO L226 Difference]: Without dead ends: 2496 [2018-03-29 20:58:42,272 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2018-03-29 20:58:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2018-03-29 20:58:42,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2389. [2018-03-29 20:58:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2018-03-29 20:58:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 2864 transitions. [2018-03-29 20:58:42,396 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 2864 transitions. Word has length 62 [2018-03-29 20:58:42,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:42,396 INFO L459 AbstractCegarLoop]: Abstraction has 2389 states and 2864 transitions. [2018-03-29 20:58:42,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-03-29 20:58:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 2864 transitions. [2018-03-29 20:58:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-03-29 20:58:42,399 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:42,399 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-03-29 20:58:42,399 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:42,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1481701379, 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 [2018-03-29 20:58:42,408 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:42,472 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:42,577 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:42,787 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:42,822 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:42,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-03-29 20:58:42,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-29 20:58:42,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-29 20:58:42,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:58:42,824 INFO L87 Difference]: Start difference. First operand 2389 states and 2864 transitions. Second operand 10 states. [2018-03-29 20:58:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:43,959 INFO L93 Difference]: Finished difference Result 10619 states and 13269 transitions. [2018-03-29 20:58:43,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-29 20:58:43,960 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-03-29 20:58:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:44,002 INFO L225 Difference]: With dead ends: 10619 [2018-03-29 20:58:44,002 INFO L226 Difference]: Without dead ends: 8245 [2018-03-29 20:58:44,012 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-03-29 20:58:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2018-03-29 20:58:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 7581. [2018-03-29 20:58:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7581 states. [2018-03-29 20:58:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7581 states to 7581 states and 9265 transitions. [2018-03-29 20:58:44,348 INFO L78 Accepts]: Start accepts. Automaton has 7581 states and 9265 transitions. Word has length 76 [2018-03-29 20:58:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:44,349 INFO L459 AbstractCegarLoop]: Abstraction has 7581 states and 9265 transitions. [2018-03-29 20:58:44,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-29 20:58:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7581 states and 9265 transitions. [2018-03-29 20:58:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-03-29 20:58:44,352 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:44,352 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, 1, 1, 1, 1] [2018-03-29 20:58:44,352 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:44,353 INFO L82 PathProgramCache]: Analyzing trace with hash -876185036, 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 [2018-03-29 20:58:44,362 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:44,423 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:44,649 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:44,893 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:44,893 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-03-29 20:58:44,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:58:44,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:58:44,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-03-29 20:58:44,894 INFO L87 Difference]: Start difference. First operand 7581 states and 9265 transitions. Second operand 16 states. [2018-03-29 20:58:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:45,806 INFO L93 Difference]: Finished difference Result 17954 states and 22306 transitions. [2018-03-29 20:58:45,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 20:58:45,806 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2018-03-29 20:58:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:45,853 INFO L225 Difference]: With dead ends: 17954 [2018-03-29 20:58:45,853 INFO L226 Difference]: Without dead ends: 12247 [2018-03-29 20:58:45,873 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2018-03-29 20:58:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12247 states. [2018-03-29 20:58:46,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12247 to 10393. [2018-03-29 20:58:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10393 states. [2018-03-29 20:58:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 12949 transitions. [2018-03-29 20:58:46,371 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 12949 transitions. Word has length 81 [2018-03-29 20:58:46,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:46,372 INFO L459 AbstractCegarLoop]: Abstraction has 10393 states and 12949 transitions. [2018-03-29 20:58:46,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:58:46,372 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 12949 transitions. [2018-03-29 20:58:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-03-29 20:58:46,375 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:46,376 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, 1, 1, 1, 1, 1] [2018-03-29 20:58:46,376 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:46,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1170271716, 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 [2018-03-29 20:58:46,389 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:46,450 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:46,502 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:46,623 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:46,623 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-03-29 20:58:46,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 20:58:46,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 20:58:46,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-03-29 20:58:46,624 INFO L87 Difference]: Start difference. First operand 10393 states and 12949 transitions. Second operand 17 states. [2018-03-29 20:58:47,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:47,637 INFO L93 Difference]: Finished difference Result 22682 states and 29708 transitions. [2018-03-29 20:58:47,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-03-29 20:58:47,638 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2018-03-29 20:58:47,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:47,672 INFO L225 Difference]: With dead ends: 22682 [2018-03-29 20:58:47,673 INFO L226 Difference]: Without dead ends: 14163 [2018-03-29 20:58:47,691 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2018-03-29 20:58:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14163 states. [2018-03-29 20:58:47,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14163 to 9121. [2018-03-29 20:58:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9121 states. [2018-03-29 20:58:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9121 states to 9121 states and 11355 transitions. [2018-03-29 20:58:47,998 INFO L78 Accepts]: Start accepts. Automaton has 9121 states and 11355 transitions. Word has length 82 [2018-03-29 20:58:47,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:47,999 INFO L459 AbstractCegarLoop]: Abstraction has 9121 states and 11355 transitions. [2018-03-29 20:58:47,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 20:58:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9121 states and 11355 transitions. [2018-03-29 20:58:48,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-29 20:58:48,001 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:48,001 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-03-29 20:58:48,001 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:48,001 INFO L82 PathProgramCache]: Analyzing trace with hash 476919487, 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 [2018-03-29 20:58:48,008 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:48,099 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:48,171 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:48,313 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:48,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-03-29 20:58:48,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 20:58:48,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 20:58:48,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-03-29 20:58:48,314 INFO L87 Difference]: Start difference. First operand 9121 states and 11355 transitions. Second operand 13 states. [2018-03-29 20:58:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:48,897 INFO L93 Difference]: Finished difference Result 18243 states and 22674 transitions. [2018-03-29 20:58:48,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-29 20:58:48,897 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 83 [2018-03-29 20:58:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:48,925 INFO L225 Difference]: With dead ends: 18243 [2018-03-29 20:58:48,926 INFO L226 Difference]: Without dead ends: 8957 [2018-03-29 20:58:48,948 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2018-03-29 20:58:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8957 states. [2018-03-29 20:58:49,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8957 to 8761. [2018-03-29 20:58:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8761 states. [2018-03-29 20:58:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8761 states to 8761 states and 10911 transitions. [2018-03-29 20:58:49,325 INFO L78 Accepts]: Start accepts. Automaton has 8761 states and 10911 transitions. Word has length 83 [2018-03-29 20:58:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:49,326 INFO L459 AbstractCegarLoop]: Abstraction has 8761 states and 10911 transitions. [2018-03-29 20:58:49,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 20:58:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 8761 states and 10911 transitions. [2018-03-29 20:58:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-03-29 20:58:49,327 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:49,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:58:49,328 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:49,328 INFO L82 PathProgramCache]: Analyzing trace with hash 193067153, 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 [2018-03-29 20:58:49,333 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:49,417 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:58:49,469 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 38 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:49,628 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:49,628 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 17 [2018-03-29 20:58:49,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 20:58:49,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 20:58:49,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-03-29 20:58:49,629 INFO L87 Difference]: Start difference. First operand 8761 states and 10911 transitions. Second operand 17 states. [2018-03-29 20:58:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:50,454 INFO L93 Difference]: Finished difference Result 21585 states and 27348 transitions. [2018-03-29 20:58:50,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-29 20:58:50,455 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2018-03-29 20:58:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:50,492 INFO L225 Difference]: With dead ends: 21585 [2018-03-29 20:58:50,492 INFO L226 Difference]: Without dead ends: 12676 [2018-03-29 20:58:50,511 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 157 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2018-03-29 20:58:50,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12676 states. [2018-03-29 20:58:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12676 to 10640. [2018-03-29 20:58:50,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10640 states. [2018-03-29 20:58:50,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10640 states to 10640 states and 13496 transitions. [2018-03-29 20:58:50,964 INFO L78 Accepts]: Start accepts. Automaton has 10640 states and 13496 transitions. Word has length 88 [2018-03-29 20:58:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:50,964 INFO L459 AbstractCegarLoop]: Abstraction has 10640 states and 13496 transitions. [2018-03-29 20:58:50,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 20:58:50,964 INFO L276 IsEmpty]: Start isEmpty. Operand 10640 states and 13496 transitions. [2018-03-29 20:58:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-03-29 20:58:50,966 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:50,967 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-03-29 20:58:50,967 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:50,967 INFO L82 PathProgramCache]: Analyzing trace with hash -242131558, 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 [2018-03-29 20:58:50,982 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:51,039 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-29 20:58:51,116 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-29 20:58:51,267 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:51,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-03-29 20:58:51,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 20:58:51,268 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 20:58:51,268 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-03-29 20:58:51,269 INFO L87 Difference]: Start difference. First operand 10640 states and 13496 transitions. Second operand 13 states. [2018-03-29 20:58:53,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:53,081 INFO L93 Difference]: Finished difference Result 43420 states and 57079 transitions. [2018-03-29 20:58:53,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-29 20:58:53,081 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2018-03-29 20:58:53,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:53,163 INFO L225 Difference]: With dead ends: 43420 [2018-03-29 20:58:53,163 INFO L226 Difference]: Without dead ends: 32795 [2018-03-29 20:58:53,192 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:58:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32795 states. [2018-03-29 20:58:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32795 to 26574. [2018-03-29 20:58:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26574 states. [2018-03-29 20:58:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26574 states to 26574 states and 34015 transitions. [2018-03-29 20:58:54,233 INFO L78 Accepts]: Start accepts. Automaton has 26574 states and 34015 transitions. Word has length 92 [2018-03-29 20:58:54,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:54,233 INFO L459 AbstractCegarLoop]: Abstraction has 26574 states and 34015 transitions. [2018-03-29 20:58:54,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 20:58:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 26574 states and 34015 transitions. [2018-03-29 20:58:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-03-29 20:58:54,236 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:54,236 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:58:54,236 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:54,236 INFO L82 PathProgramCache]: Analyzing trace with hash 828783997, 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 [2018-03-29 20:58:54,246 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:54,301 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-03-29 20:58:54,324 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-03-29 20:58:54,431 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-29 20:58:54,431 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2018-03-29 20:58:54,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-29 20:58:54,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-29 20:58:54,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:58:54,432 INFO L87 Difference]: Start difference. First operand 26574 states and 34015 transitions. Second operand 10 states. [2018-03-29 20:58:55,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:55,384 INFO L93 Difference]: Finished difference Result 42804 states and 54563 transitions. [2018-03-29 20:58:55,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 20:58:55,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2018-03-29 20:58:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:55,409 INFO L225 Difference]: With dead ends: 42804 [2018-03-29 20:58:55,409 INFO L226 Difference]: Without dead ends: 15165 [2018-03-29 20:58:55,437 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-03-29 20:58:55,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15165 states. [2018-03-29 20:58:55,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15165 to 13511. [2018-03-29 20:58:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13511 states. [2018-03-29 20:58:55,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 17389 transitions. [2018-03-29 20:58:55,962 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 17389 transitions. Word has length 92 [2018-03-29 20:58:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:55,962 INFO L459 AbstractCegarLoop]: Abstraction has 13511 states and 17389 transitions. [2018-03-29 20:58:55,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-29 20:58:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 17389 transitions. [2018-03-29 20:58:55,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-03-29 20:58:55,965 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:55,966 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, 1, 1, 1, 1, 1] [2018-03-29 20:58:55,966 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:55,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1651550753, 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 [2018-03-29 20:58:55,972 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:56,021 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:58:56,081 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:58:56,264 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:56,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2018-03-29 20:58:56,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-29 20:58:56,264 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-29 20:58:56,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-03-29 20:58:56,265 INFO L87 Difference]: Start difference. First operand 13511 states and 17389 transitions. Second operand 22 states. [2018-03-29 20:58:56,638 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 18 DAG size of output 13 [2018-03-29 20:58:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:58:58,278 INFO L93 Difference]: Finished difference Result 42066 states and 57162 transitions. [2018-03-29 20:58:58,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-29 20:58:58,279 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 109 [2018-03-29 20:58:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:58:58,343 INFO L225 Difference]: With dead ends: 42066 [2018-03-29 20:58:58,343 INFO L226 Difference]: Without dead ends: 28611 [2018-03-29 20:58:58,368 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=433, Invalid=1373, Unknown=0, NotChecked=0, Total=1806 [2018-03-29 20:58:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28611 states. [2018-03-29 20:58:59,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28611 to 18527. [2018-03-29 20:58:59,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18527 states. [2018-03-29 20:58:59,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18527 states to 18527 states and 25001 transitions. [2018-03-29 20:58:59,405 INFO L78 Accepts]: Start accepts. Automaton has 18527 states and 25001 transitions. Word has length 109 [2018-03-29 20:58:59,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:58:59,405 INFO L459 AbstractCegarLoop]: Abstraction has 18527 states and 25001 transitions. [2018-03-29 20:58:59,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-29 20:58:59,405 INFO L276 IsEmpty]: Start isEmpty. Operand 18527 states and 25001 transitions. [2018-03-29 20:58:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-03-29 20:58:59,408 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:58:59,408 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] [2018-03-29 20:58:59,408 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:58:59,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1349175365, 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 [2018-03-29 20:58:59,433 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:58:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:58:59,494 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:58:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-03-29 20:58:59,558 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:58:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 70 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-03-29 20:58:59,709 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:58:59,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-03-29 20:58:59,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:58:59,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:58:59,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-03-29 20:58:59,710 INFO L87 Difference]: Start difference. First operand 18527 states and 25001 transitions. Second operand 16 states. [2018-03-29 20:59:01,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:01,411 INFO L93 Difference]: Finished difference Result 42030 states and 57210 transitions. [2018-03-29 20:59:01,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 20:59:01,411 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 118 [2018-03-29 20:59:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:01,472 INFO L225 Difference]: With dead ends: 42030 [2018-03-29 20:59:01,473 INFO L226 Difference]: Without dead ends: 23559 [2018-03-29 20:59:01,504 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2018-03-29 20:59:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23559 states. [2018-03-29 20:59:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23559 to 23191. [2018-03-29 20:59:02,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23191 states. [2018-03-29 20:59:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23191 states to 23191 states and 31381 transitions. [2018-03-29 20:59:02,636 INFO L78 Accepts]: Start accepts. Automaton has 23191 states and 31381 transitions. Word has length 118 [2018-03-29 20:59:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:02,637 INFO L459 AbstractCegarLoop]: Abstraction has 23191 states and 31381 transitions. [2018-03-29 20:59:02,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:59:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 23191 states and 31381 transitions. [2018-03-29 20:59:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-03-29 20:59:02,640 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:02,640 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] [2018-03-29 20:59:02,640 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:02,640 INFO L82 PathProgramCache]: Analyzing trace with hash 526870510, 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 [2018-03-29 20:59:02,795 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:02,852 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:02,913 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-03-29 20:59:02,913 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-03-29 20:59:03,109 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:03,110 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 21 [2018-03-29 20:59:03,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-03-29 20:59:03,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-03-29 20:59:03,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-03-29 20:59:03,110 INFO L87 Difference]: Start difference. First operand 23191 states and 31381 transitions. Second operand 21 states. [2018-03-29 20:59:05,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:05,491 INFO L93 Difference]: Finished difference Result 54072 states and 74254 transitions. [2018-03-29 20:59:05,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-29 20:59:05,541 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 146 [2018-03-29 20:59:05,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:05,588 INFO L225 Difference]: With dead ends: 54072 [2018-03-29 20:59:05,588 INFO L226 Difference]: Without dead ends: 30937 [2018-03-29 20:59:05,611 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 20:59:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30937 states. [2018-03-29 20:59:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30937 to 23367. [2018-03-29 20:59:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23367 states. [2018-03-29 20:59:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23367 states to 23367 states and 31733 transitions. [2018-03-29 20:59:06,739 INFO L78 Accepts]: Start accepts. Automaton has 23367 states and 31733 transitions. Word has length 146 [2018-03-29 20:59:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:06,740 INFO L459 AbstractCegarLoop]: Abstraction has 23367 states and 31733 transitions. [2018-03-29 20:59:06,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-03-29 20:59:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 23367 states and 31733 transitions. [2018-03-29 20:59:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-03-29 20:59:06,742 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:06,742 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, 1, 1, 1, 1, 1] [2018-03-29 20:59:06,742 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:06,742 INFO L82 PathProgramCache]: Analyzing trace with hash -572730924, 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 [2018-03-29 20:59:06,748 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:06,807 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 202 proven. 7 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-03-29 20:59:06,863 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 136 proven. 49 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-03-29 20:59:07,023 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:07,023 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-03-29 20:59:07,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:59:07,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:59:07,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-29 20:59:07,024 INFO L87 Difference]: Start difference. First operand 23367 states and 31733 transitions. Second operand 16 states. [2018-03-29 20:59:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:08,988 INFO L93 Difference]: Finished difference Result 56312 states and 77694 transitions. [2018-03-29 20:59:08,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-29 20:59:08,988 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 170 [2018-03-29 20:59:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:09,050 INFO L225 Difference]: With dead ends: 56312 [2018-03-29 20:59:09,050 INFO L226 Difference]: Without dead ends: 33001 [2018-03-29 20:59:09,083 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=682, Unknown=0, NotChecked=0, Total=930 [2018-03-29 20:59:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33001 states. [2018-03-29 20:59:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33001 to 32695. [2018-03-29 20:59:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32695 states. [2018-03-29 20:59:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32695 states to 32695 states and 44581 transitions. [2018-03-29 20:59:10,844 INFO L78 Accepts]: Start accepts. Automaton has 32695 states and 44581 transitions. Word has length 170 [2018-03-29 20:59:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:10,844 INFO L459 AbstractCegarLoop]: Abstraction has 32695 states and 44581 transitions. [2018-03-29 20:59:10,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:59:10,845 INFO L276 IsEmpty]: Start isEmpty. Operand 32695 states and 44581 transitions. [2018-03-29 20:59:10,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-03-29 20:59:10,848 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:10,848 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, 1, 1, 1, 1, 1] [2018-03-29 20:59:10,848 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:10,848 INFO L82 PathProgramCache]: Analyzing trace with hash 857657893, 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 [2018-03-29 20:59:10,854 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:10,932 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:10,994 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 87 proven. 107 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-03-29 20:59:10,994 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 81 proven. 113 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-03-29 20:59:11,110 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:11,111 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-03-29 20:59:11,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 20:59:11,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 20:59:11,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-03-29 20:59:11,111 INFO L87 Difference]: Start difference. First operand 32695 states and 44581 transitions. Second operand 12 states. [2018-03-29 20:59:13,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:13,513 INFO L93 Difference]: Finished difference Result 76927 states and 104993 transitions. [2018-03-29 20:59:13,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-29 20:59:13,513 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2018-03-29 20:59:13,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:13,581 INFO L225 Difference]: With dead ends: 76927 [2018-03-29 20:59:13,581 INFO L226 Difference]: Without dead ends: 44288 [2018-03-29 20:59:13,616 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:59:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44288 states. [2018-03-29 20:59:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44288 to 43695. [2018-03-29 20:59:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43695 states. [2018-03-29 20:59:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43695 states to 43695 states and 59675 transitions. [2018-03-29 20:59:15,646 INFO L78 Accepts]: Start accepts. Automaton has 43695 states and 59675 transitions. Word has length 170 [2018-03-29 20:59:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:15,647 INFO L459 AbstractCegarLoop]: Abstraction has 43695 states and 59675 transitions. [2018-03-29 20:59:15,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 20:59:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 43695 states and 59675 transitions. [2018-03-29 20:59:15,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-03-29 20:59:15,651 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:15,651 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 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] [2018-03-29 20:59:15,651 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:15,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1130216723, 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 [2018-03-29 20:59:15,661 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:15,724 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 208 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-03-29 20:59:15,823 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 156 proven. 36 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-03-29 20:59:16,116 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:16,117 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-29 20:59:16,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-29 20:59:16,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-29 20:59:16,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-03-29 20:59:16,117 INFO L87 Difference]: Start difference. First operand 43695 states and 59675 transitions. Second operand 15 states. [2018-03-29 20:59:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:18,990 INFO L93 Difference]: Finished difference Result 100204 states and 137062 transitions. [2018-03-29 20:59:18,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-29 20:59:18,990 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 172 [2018-03-29 20:59:18,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:19,102 INFO L225 Difference]: With dead ends: 100204 [2018-03-29 20:59:19,102 INFO L226 Difference]: Without dead ends: 56565 [2018-03-29 20:59:19,170 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2018-03-29 20:59:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56565 states. [2018-03-29 20:59:22,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56565 to 50015. [2018-03-29 20:59:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50015 states. [2018-03-29 20:59:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50015 states to 50015 states and 68117 transitions. [2018-03-29 20:59:22,742 INFO L78 Accepts]: Start accepts. Automaton has 50015 states and 68117 transitions. Word has length 172 [2018-03-29 20:59:22,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:22,743 INFO L459 AbstractCegarLoop]: Abstraction has 50015 states and 68117 transitions. [2018-03-29 20:59:22,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-29 20:59:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 50015 states and 68117 transitions. [2018-03-29 20:59:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-03-29 20:59:22,746 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:22,746 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, 1, 1, 1, 1, 1] [2018-03-29 20:59:22,746 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:22,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1558902031, 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 [2018-03-29 20:59:22,754 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:22,811 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:22,866 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 236 proven. 8 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-03-29 20:59:22,866 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 154 proven. 58 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-03-29 20:59:23,008 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:23,008 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-29 20:59:23,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-29 20:59:23,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-29 20:59:23,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-03-29 20:59:23,009 INFO L87 Difference]: Start difference. First operand 50015 states and 68117 transitions. Second operand 15 states. [2018-03-29 20:59:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:26,046 INFO L93 Difference]: Finished difference Result 106524 states and 145064 transitions. [2018-03-29 20:59:26,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-29 20:59:26,047 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 177 [2018-03-29 20:59:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:26,158 INFO L225 Difference]: With dead ends: 106524 [2018-03-29 20:59:26,158 INFO L226 Difference]: Without dead ends: 56565 [2018-03-29 20:59:26,231 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:59:26,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56565 states. [2018-03-29 20:59:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56565 to 56335. [2018-03-29 20:59:29,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56335 states. [2018-03-29 20:59:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56335 states to 56335 states and 76339 transitions. [2018-03-29 20:59:29,142 INFO L78 Accepts]: Start accepts. Automaton has 56335 states and 76339 transitions. Word has length 177 [2018-03-29 20:59:29,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:29,143 INFO L459 AbstractCegarLoop]: Abstraction has 56335 states and 76339 transitions. [2018-03-29 20:59:29,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-29 20:59:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 56335 states and 76339 transitions. [2018-03-29 20:59:29,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-03-29 20:59:29,146 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:29,146 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] [2018-03-29 20:59:29,146 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:29,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1599515383, 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 [2018-03-29 20:59:29,152 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:29,223 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:29,328 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 150 proven. 114 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-03-29 20:59:29,328 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:29,506 WARN L148 SmtUtils]: Spent 174ms on a formula simplification that was a NOOP. DAG size: 6 [2018-03-29 20:59:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 152 proven. 112 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-03-29 20:59:29,653 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:29,653 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-03-29 20:59:29,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-29 20:59:29,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-29 20:59:29,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-03-29 20:59:29,654 INFO L87 Difference]: Start difference. First operand 56335 states and 76339 transitions. Second operand 15 states. [2018-03-29 20:59:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:34,928 INFO L93 Difference]: Finished difference Result 85505 states and 117559 transitions. [2018-03-29 20:59:34,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-03-29 20:59:34,929 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 181 [2018-03-29 20:59:34,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:35,084 INFO L225 Difference]: With dead ends: 85505 [2018-03-29 20:59:35,084 INFO L226 Difference]: Without dead ends: 85502 [2018-03-29 20:59:35,117 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 [2018-03-29 20:59:35,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85502 states. [2018-03-29 20:59:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85502 to 82786. [2018-03-29 20:59:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82786 states. [2018-03-29 20:59:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82786 states to 82786 states and 112825 transitions. [2018-03-29 20:59:39,234 INFO L78 Accepts]: Start accepts. Automaton has 82786 states and 112825 transitions. Word has length 181 [2018-03-29 20:59:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:39,234 INFO L459 AbstractCegarLoop]: Abstraction has 82786 states and 112825 transitions. [2018-03-29 20:59:39,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-29 20:59:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 82786 states and 112825 transitions. [2018-03-29 20:59:39,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-03-29 20:59:39,237 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:39,238 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] [2018-03-29 20:59:39,238 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:39,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1599515382, 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 [2018-03-29 20:59:39,243 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:39,311 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-03-29 20:59:39,473 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:39,873 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 [2018-03-29 20:59:39,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:59:39,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:59:39,875 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2018-03-29 20:59:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-03-29 20:59:39,979 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:39,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2018-03-29 20:59:39,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-03-29 20:59:39,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-03-29 20:59:39,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2018-03-29 20:59:39,999 INFO L87 Difference]: Start difference. First operand 82786 states and 112825 transitions. Second operand 21 states. [2018-03-29 20:59:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:59:48,530 INFO L93 Difference]: Finished difference Result 144873 states and 199251 transitions. [2018-03-29 20:59:48,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-03-29 20:59:48,531 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 181 [2018-03-29 20:59:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:59:48,854 INFO L225 Difference]: With dead ends: 144873 [2018-03-29 20:59:48,854 INFO L226 Difference]: Without dead ends: 144870 [2018-03-29 20:59:48,910 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 360 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=829, Invalid=2831, Unknown=0, NotChecked=0, Total=3660 [2018-03-29 20:59:48,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144870 states. [2018-03-29 20:59:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144870 to 139328. [2018-03-29 20:59:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139328 states. [2018-03-29 20:59:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139328 states to 139328 states and 190294 transitions. [2018-03-29 20:59:58,259 INFO L78 Accepts]: Start accepts. Automaton has 139328 states and 190294 transitions. Word has length 181 [2018-03-29 20:59:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:59:58,259 INFO L459 AbstractCegarLoop]: Abstraction has 139328 states and 190294 transitions. [2018-03-29 20:59:58,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-03-29 20:59:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 139328 states and 190294 transitions. [2018-03-29 20:59:58,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-03-29 20:59:58,263 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:59:58,263 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, 1, 1, 1, 1, 1] [2018-03-29 20:59:58,263 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 20:59:58,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1120286836, now seen corresponding path program 1 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 [2018-03-29 20:59:58,269 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:59:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:59:58,327 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:59:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 230 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-03-29 20:59:58,406 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:59:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 136 proven. 76 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-03-29 20:59:58,545 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:59:58,546 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-29 20:59:58,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-29 20:59:58,546 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-29 20:59:58,546 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-03-29 20:59:58,546 INFO L87 Difference]: Start difference. First operand 139328 states and 190294 transitions. Second operand 15 states. [2018-03-29 21:00:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:00:04,941 INFO L93 Difference]: Finished difference Result 251973 states and 342742 transitions. [2018-03-29 21:00:04,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-29 21:00:04,942 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 184 [2018-03-29 21:00:04,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:00:05,227 INFO L225 Difference]: With dead ends: 251973 [2018-03-29 21:00:05,227 INFO L226 Difference]: Without dead ends: 112701 [2018-03-29 21:00:05,377 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-03-29 21:00:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112701 states. [2018-03-29 21:00:10,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112701 to 96342. [2018-03-29 21:00:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96342 states. [2018-03-29 21:00:11,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96342 states to 96342 states and 130164 transitions. [2018-03-29 21:00:11,124 INFO L78 Accepts]: Start accepts. Automaton has 96342 states and 130164 transitions. Word has length 184 [2018-03-29 21:00:11,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:00:11,125 INFO L459 AbstractCegarLoop]: Abstraction has 96342 states and 130164 transitions. [2018-03-29 21:00:11,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-29 21:00:11,125 INFO L276 IsEmpty]: Start isEmpty. Operand 96342 states and 130164 transitions. [2018-03-29 21:00:11,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-03-29 21:00:11,128 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:00:11,128 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, 1, 1, 1, 1, 1] [2018-03-29 21:00:11,128 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 21:00:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 604535016, now seen corresponding path program 2 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 [2018-03-29 21:00:11,165 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:00:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:00:11,225 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:00:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 196 proven. 4 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-03-29 21:00:11,301 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:00:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 102 proven. 90 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2018-03-29 21:00:11,479 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:00:11,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-03-29 21:00:11,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 21:00:11,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 21:00:11,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-03-29 21:00:11,480 INFO L87 Difference]: Start difference. First operand 96342 states and 130164 transitions. Second operand 13 states. [2018-03-29 21:00:16,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:00:16,137 INFO L93 Difference]: Finished difference Result 152471 states and 201817 transitions. [2018-03-29 21:00:16,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-03-29 21:00:16,138 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2018-03-29 21:00:16,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:00:16,232 INFO L225 Difference]: With dead ends: 152471 [2018-03-29 21:00:16,232 INFO L226 Difference]: Without dead ends: 53944 [2018-03-29 21:00:16,327 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2018-03-29 21:00:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53944 states. [2018-03-29 21:00:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53944 to 53409. [2018-03-29 21:00:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53409 states. [2018-03-29 21:00:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53409 states to 53409 states and 67833 transitions. [2018-03-29 21:00:19,030 INFO L78 Accepts]: Start accepts. Automaton has 53409 states and 67833 transitions. Word has length 193 [2018-03-29 21:00:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:00:19,030 INFO L459 AbstractCegarLoop]: Abstraction has 53409 states and 67833 transitions. [2018-03-29 21:00:19,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 21:00:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 53409 states and 67833 transitions. [2018-03-29 21:00:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-03-29 21:00:19,038 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:00:19,038 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, 1] [2018-03-29 21:00:19,038 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__U_MULTI_flockfree_____false_valid_memtrack_i__pushErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr5RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr6RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__pushErr7RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr2RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr4RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr0RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr3RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr1RequiresViolation, __U_MULTI_flockfree_____false_valid_memtrack_i__popErr5RequiresViolation]=== [2018-03-29 21:00:19,038 INFO L82 PathProgramCache]: Analyzing trace with hash -290966208, 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 [2018-03-29 21:00:19,044 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:00:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:00:19,127 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:00:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 218 proven. 7 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-03-29 21:00:19,241 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:00:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-03-29 21:00:19,406 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:00:19,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-03-29 21:00:19,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 21:00:19,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 21:00:19,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-29 21:00:19,407 INFO L87 Difference]: Start difference. First operand 53409 states and 67833 transitions. Second operand 16 states. [2018-03-29 21:00:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:00:22,372 INFO L93 Difference]: Finished difference Result 104407 states and 132386 transitions. [2018-03-29 21:00:22,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-29 21:00:22,372 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 249 [2018-03-29 21:00:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:00:22,456 INFO L225 Difference]: With dead ends: 104407 [2018-03-29 21:00:22,456 INFO L226 Difference]: Without dead ends: 48240 [2018-03-29 21:00:22,514 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2018-03-29 21:00:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48240 states. [2018-03-29 21:00:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48240 to 47584. [2018-03-29 21:00:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47584 states. Received shutdown request... [2018-03-29 21:00:25,080 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-29 21:00:25,085 WARN L197 ceAbstractionStarter]: Timeout [2018-03-29 21:00:25,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 09:00:25 BoogieIcfgContainer [2018-03-29 21:00:25,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 21:00:25,086 INFO L168 Benchmark]: Toolchain (without parser) took 111357.65 ms. Allocated memory was 298.3 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 236.3 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.1 GB. Max. memory is 5.3 GB. [2018-03-29 21:00:25,087 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 298.3 MB. Free memory is still 259.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 21:00:25,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.73 ms. Allocated memory is still 298.3 MB. Free memory was 234.3 MB in the beginning and 208.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 5.3 GB. [2018-03-29 21:00:25,087 INFO L168 Benchmark]: Boogie Preprocessor took 60.86 ms. Allocated memory is still 298.3 MB. Free memory was 208.4 MB in the beginning and 206.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:00:25,087 INFO L168 Benchmark]: RCFGBuilder took 645.21 ms. Allocated memory was 298.3 MB in the beginning and 454.0 MB in the end (delta: 155.7 MB). Free memory was 206.4 MB in the beginning and 377.8 MB in the end (delta: -171.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. [2018-03-29 21:00:25,088 INFO L168 Benchmark]: TraceAbstraction took 110297.97 ms. Allocated memory was 454.0 MB in the beginning and 3.0 GB in the end (delta: 2.5 GB). Free memory was 377.8 MB in the beginning and 1.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.1 GB. Max. memory is 5.3 GB. [2018-03-29 21:00:25,089 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 298.3 MB. Free memory is still 259.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 347.73 ms. Allocated memory is still 298.3 MB. Free memory was 234.3 MB in the beginning and 208.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 60.86 ms. Allocated memory is still 298.3 MB. Free memory was 208.4 MB in the beginning and 206.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 645.21 ms. Allocated memory was 298.3 MB in the beginning and 454.0 MB in the end (delta: 155.7 MB). Free memory was 206.4 MB in the beginning and 377.8 MB in the end (delta: -171.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 110297.97 ms. Allocated memory was 454.0 MB in the beginning and 3.0 GB in the end (delta: 2.5 GB). Free memory was 377.8 MB in the beginning and 1.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.1 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 634]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 634]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 644]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 644]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 697]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 688]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 688). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 698]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 697]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 698]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 681]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 682]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 672]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 681]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 672]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 682]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while ReachableStatesComputation was computing reachable states (46875 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 129 locations, 19 error locations. TIMEOUT Result, 110.2s OverallTime, 31 OverallIterations, 11 TraceHistogramMax, 57.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5501 SDtfs, 16852 SDslu, 15860 SDs, 0 SdLazy, 15881 SolverSat, 2495 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6618 GetRequests, 5934 SyntacticMatches, 19 SemanticMatches, 665 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4197 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139328occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 42.7s AutomataMinimizationTime, 31 MinimizatonAttempts, 70726 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 3088 NumberOfCodeBlocks, 3088 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 6114 ConstructedInterpolants, 32 QuantifiedInterpolants, 2691088 SizeOfPredicates, 196 NumberOfNonLiveVariables, 13575 ConjunctsInSsa, 443 ConjunctsInUnsatCore, 62 InterpolantComputations, 23 PerfectInterpolantSequences, 6654/8024 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_21-00-25-097.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-29_21-00-25-097.csv Completed graceful shutdown