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 0.1.23-4cf2d92 [2018-03-28 12:45:15,611 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 12:45:15,613 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 12:45:15,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 12:45:15,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 12:45:15,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 12:45:15,629 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 12:45:15,631 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 12:45:15,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 12:45:15,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 12:45:15,636 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 12:45:15,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 12:45:15,637 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 12:45:15,638 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 12:45:15,639 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 12:45:15,642 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 12:45:15,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 12:45:15,646 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 12:45:15,647 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 12:45:15,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 12:45:15,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 12:45:15,651 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 12:45:15,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 12:45:15,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 12:45:15,654 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 12:45:15,655 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 12:45:15,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 12:45:15,656 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 12:45:15,657 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 12:45:15,657 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 12:45:15,658 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 12:45:15,658 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 [2018-03-28 12:45:15,683 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 12:45:15,683 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 12:45:15,684 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 12:45:15,684 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 12:45:15,684 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 12:45:15,685 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 12:45:15,685 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 12:45:15,685 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 12:45:15,685 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 12:45:15,686 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 12:45:15,686 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 12:45:15,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 12:45:15,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 12:45:15,686 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 12:45:15,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 12:45:15,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 12:45:15,688 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 12:45:15,688 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 12:45:15,688 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 12:45:15,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:45:15,689 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 12:45:15,689 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 12:45:15,689 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 12:45:15,689 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 12:45:15,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 12:45:15,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:45:15,690 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 12:45:15,690 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 12:45:15,691 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 12:45:15,691 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 12:45:15,691 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 12:45:15,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 12:45:15,734 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 12:45:15,737 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 12:45:15,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 12:45:15,739 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 12:45:15,740 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 [2018-03-28 12:45:16,075 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf3ea60ff1 [2018-03-28 12:45:16,259 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 12:45:16,259 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 12:45:16,260 INFO L171 CDTParser]: Scanning lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,270 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 12:45:16,270 INFO L215 ultiparseSymbolTable]: [2018-03-28 12:45:16,270 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 12:45:16,270 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____false_valid_memtrack_i__pop ('pop') in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,271 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,271 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flockfree_____false_valid_memtrack_i__push ('push') in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,271 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 12:45:16,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____mode_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____intptr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____ssize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,272 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__size_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,272 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 [2018-03-28 12:45:16,272 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____time_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,272 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,272 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsfilcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,272 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 [2018-03-28 12:45:16,272 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_int in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,272 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____timer_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__mode_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__timer_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____nlink_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__caddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_short in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,273 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__gid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pc4 in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ssize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____blkcnt64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__key_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fd_set in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fsfilcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_short in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pc1 in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____id_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 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 [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__pthread_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_char in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____off64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fd_mask in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 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 [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint32_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__x4 in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 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 [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__x1 in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fsblkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__blksize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____clockid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__div_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_long in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 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 [2018-03-28 12:45:16,277 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 [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsblkcnt64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 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 [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__blkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__quad_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__garbage in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____suseconds_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_char in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__off_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,277 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__uid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____socklen_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__lldiv_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____rlim_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__wchar_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 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 [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____ino64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__u_long in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____off_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,278 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 [2018-03-28 12:45:16,279 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 [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ushort in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____quad_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__daddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____sigset_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____pid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint16_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____ino_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____WAIT_STATUS in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__int64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____gid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 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 [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____clock_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ulong in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__clockid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 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 [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____loff_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fsid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__fd_mask in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__suseconds_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 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 [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____caddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__clock_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 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 [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____int64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____dev_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsblkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uid_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,282 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 [2018-03-28 12:45:16,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__uint in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__nlink_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,282 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 [2018-03-28 12:45:16,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__loff_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__id_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,282 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 [2018-03-28 12:45:16,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__t1 in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____rlim64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__dev_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__sigset_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____qaddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____blksize_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__t4 in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__register_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____daddr_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,283 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 [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____blkcnt_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____key_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____u_int in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__S in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____uint8_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__time_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____useconds_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,284 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 [2018-03-28 12:45:16,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ino_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i__ldiv_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____swblk_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flockfree_____false_valid_memtrack_i____fsfilcnt64_t in lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:16,307 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf3ea60ff1 [2018-03-28 12:45:16,312 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 12:45:16,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 12:45:16,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 12:45:16,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 12:45:16,323 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 12:45:16,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9a300c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16, skipping insertion in model container [2018-03-28 12:45:16,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,341 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:45:16,375 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:45:16,561 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:45:16,614 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:45:16,623 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-03-28 12:45:16,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16 WrapperNode [2018-03-28 12:45:16,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 12:45:16,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 12:45:16,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 12:45:16,680 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 12:45:16,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (1/1) ... [2018-03-28 12:45:16,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 12:45:16,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 12:45:16,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 12:45:16,746 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 12:45:16,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (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 [2018-03-28 12:45:16,865 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 12:45:16,866 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 12:45:16,866 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__push [2018-03-28 12:45:16,866 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__pop [2018-03-28 12:45:16,866 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 12:45:16,866 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-03-28 12:45:16,866 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-28 12:45:16,867 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-28 12:45:16,867 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-28 12:45:16,867 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-28 12:45:16,867 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-28 12:45:16,867 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-28 12:45:16,867 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-28 12:45:16,868 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-28 12:45:16,868 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-28 12:45:16,868 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-28 12:45:16,868 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-28 12:45:16,868 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-28 12:45:16,868 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-28 12:45:16,869 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-28 12:45:16,870 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-28 12:45:16,871 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-28 12:45:16,872 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 12:45:16,873 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-28 12:45:16,874 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-28 12:45:16,875 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-28 12:45:16,876 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-28 12:45:16,877 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-28 12:45:16,878 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-28 12:45:16,879 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__push [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flockfree_____false_valid_memtrack_i__pop [2018-03-28 12:45:16,880 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-03-28 12:45:16,881 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 12:45:16,881 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 12:45:16,881 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 12:45:16,881 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 12:45:16,881 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 12:45:16,881 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 12:45:17,395 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 12:45:17,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:45:17 BoogieIcfgContainer [2018-03-28 12:45:17,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 12:45:17,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 12:45:17,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 12:45:17,402 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 12:45:17,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:45:16" (1/3) ... [2018-03-28 12:45:17,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63096f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:45:17, skipping insertion in model container [2018-03-28 12:45:17,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:45:16" (2/3) ... [2018-03-28 12:45:17,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63096f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:45:17, skipping insertion in model container [2018-03-28 12:45:17,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:45:17" (3/3) ... [2018-03-28 12:45:17,405 INFO L107 eAbstractionObserver]: Analyzing ICFG lockfree-3.3_false-valid-memtrack.i [2018-03-28 12:45:17,415 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 12:45:17,424 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-03-28 12:45:17,477 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 12:45:17,478 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 12:45:17,478 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 12:45:17,478 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 12:45:17,478 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 12:45:17,478 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 12:45:17,479 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 12:45:17,479 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 12:45:17,479 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 12:45:17,480 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 12:45:17,500 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2018-03-28 12:45:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-28 12:45:17,505 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:17,505 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:45:17,505 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]=== [2018-03-28 12:45:17,509 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 [2018-03-28 12:45:17,520 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:17,593 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:17,616 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:17,674 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:17,674 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 12:45:17,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-28 12:45:17,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-28 12:45:17,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 12:45:17,691 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2018-03-28 12:45:17,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:17,717 INFO L93 Difference]: Finished difference Result 153 states and 173 transitions. [2018-03-28 12:45:17,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-28 12:45:17,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-03-28 12:45:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:17,732 INFO L225 Difference]: With dead ends: 153 [2018-03-28 12:45:17,732 INFO L226 Difference]: Without dead ends: 126 [2018-03-28 12:45:17,737 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 [2018-03-28 12:45:17,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-03-28 12:45:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-03-28 12:45:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-03-28 12:45:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 143 transitions. [2018-03-28 12:45:17,778 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 143 transitions. Word has length 19 [2018-03-28 12:45:17,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:17,778 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 143 transitions. [2018-03-28 12:45:17,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-28 12:45:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 143 transitions. [2018-03-28 12:45:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-28 12:45:17,779 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:17,779 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] [2018-03-28 12:45:17,779 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]=== [2018-03-28 12:45:17,779 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 [2018-03-28 12:45:17,785 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:17,832 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:17,868 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:17,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:17,922 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:17,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:45:17,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-28 12:45:17,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-28 12:45:17,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:45:17,924 INFO L87 Difference]: Start difference. First operand 126 states and 143 transitions. Second operand 3 states. [2018-03-28 12:45:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:17,949 INFO L93 Difference]: Finished difference Result 150 states and 168 transitions. [2018-03-28 12:45:17,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 12:45:17,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-03-28 12:45:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:17,953 INFO L225 Difference]: With dead ends: 150 [2018-03-28 12:45:17,953 INFO L226 Difference]: Without dead ends: 127 [2018-03-28 12:45:17,954 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 [2018-03-28 12:45:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-03-28 12:45:17,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-03-28 12:45:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-03-28 12:45:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 144 transitions. [2018-03-28 12:45:17,967 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 144 transitions. Word has length 24 [2018-03-28 12:45:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:17,967 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 144 transitions. [2018-03-28 12:45:17,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-28 12:45:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 144 transitions. [2018-03-28 12:45:17,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-28 12:45:17,969 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:17,969 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] [2018-03-28 12:45:17,969 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]=== [2018-03-28 12:45:17,969 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 [2018-03-28 12:45:17,978 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:18,015 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:18,048 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:18,169 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:18,169 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:45:18,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-28 12:45:18,170 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-28 12:45:18,170 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:45:18,171 INFO L87 Difference]: Start difference. First operand 127 states and 144 transitions. Second operand 3 states. [2018-03-28 12:45:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:18,227 INFO L93 Difference]: Finished difference Result 240 states and 276 transitions. [2018-03-28 12:45:18,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 12:45:18,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-03-28 12:45:18,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:18,230 INFO L225 Difference]: With dead ends: 240 [2018-03-28 12:45:18,230 INFO L226 Difference]: Without dead ends: 219 [2018-03-28 12:45:18,231 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 [2018-03-28 12:45:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-03-28 12:45:18,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 200. [2018-03-28 12:45:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-03-28 12:45:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 245 transitions. [2018-03-28 12:45:18,249 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 245 transitions. Word has length 26 [2018-03-28 12:45:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:18,250 INFO L459 AbstractCegarLoop]: Abstraction has 200 states and 245 transitions. [2018-03-28 12:45:18,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-28 12:45:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 245 transitions. [2018-03-28 12:45:18,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-28 12:45:18,251 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:18,251 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] [2018-03-28 12:45:18,251 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]=== [2018-03-28 12:45:18,251 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 [2018-03-28 12:45:18,259 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:18,322 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:18,350 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 [2018-03-28 12:45:18,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:45:18,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:45:18,354 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:45:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:18,386 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:18,429 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:18,429 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:45:18,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:45:18,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:45:18,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:45:18,431 INFO L87 Difference]: Start difference. First operand 200 states and 245 transitions. Second operand 4 states. [2018-03-28 12:45:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:18,728 INFO L93 Difference]: Finished difference Result 375 states and 466 transitions. [2018-03-28 12:45:18,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:45:18,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-03-28 12:45:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:18,734 INFO L225 Difference]: With dead ends: 375 [2018-03-28 12:45:18,734 INFO L226 Difference]: Without dead ends: 371 [2018-03-28 12:45:18,735 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 [2018-03-28 12:45:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-03-28 12:45:18,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 334. [2018-03-28 12:45:18,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-03-28 12:45:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 426 transitions. [2018-03-28 12:45:18,763 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 426 transitions. Word has length 32 [2018-03-28 12:45:18,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:18,764 INFO L459 AbstractCegarLoop]: Abstraction has 334 states and 426 transitions. [2018-03-28 12:45:18,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:45:18,764 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 426 transitions. [2018-03-28 12:45:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-28 12:45:18,765 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:18,765 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] [2018-03-28 12:45:18,765 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]=== [2018-03-28 12:45:18,766 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 [2018-03-28 12:45:18,776 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:18,818 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:18,848 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:18,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:18,929 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:18,929 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-28 12:45:18,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:45:18,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:45:18,930 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:45:18,930 INFO L87 Difference]: Start difference. First operand 334 states and 426 transitions. Second operand 5 states. [2018-03-28 12:45:19,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:19,036 INFO L93 Difference]: Finished difference Result 988 states and 1266 transitions. [2018-03-28 12:45:19,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:45:19,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-03-28 12:45:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:19,041 INFO L225 Difference]: With dead ends: 988 [2018-03-28 12:45:19,041 INFO L226 Difference]: Without dead ends: 669 [2018-03-28 12:45:19,043 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 [2018-03-28 12:45:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2018-03-28 12:45:19,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 502. [2018-03-28 12:45:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-03-28 12:45:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 652 transitions. [2018-03-28 12:45:19,071 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 652 transitions. Word has length 32 [2018-03-28 12:45:19,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:19,071 INFO L459 AbstractCegarLoop]: Abstraction has 502 states and 652 transitions. [2018-03-28 12:45:19,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:45:19,071 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 652 transitions. [2018-03-28 12:45:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-28 12:45:19,072 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:19,073 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] [2018-03-28 12:45:19,073 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]=== [2018-03-28 12:45:19,073 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 [2018-03-28 12:45:19,081 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:19,117 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:19,137 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:19,176 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:19,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 12:45:19,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-28 12:45:19,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-28 12:45:19,176 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:45:19,177 INFO L87 Difference]: Start difference. First operand 502 states and 652 transitions. Second operand 3 states. [2018-03-28 12:45:19,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:19,251 INFO L93 Difference]: Finished difference Result 562 states and 729 transitions. [2018-03-28 12:45:19,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 12:45:19,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-03-28 12:45:19,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:19,255 INFO L225 Difference]: With dead ends: 562 [2018-03-28 12:45:19,256 INFO L226 Difference]: Without dead ends: 550 [2018-03-28 12:45:19,256 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 [2018-03-28 12:45:19,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2018-03-28 12:45:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 537. [2018-03-28 12:45:19,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2018-03-28 12:45:19,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 700 transitions. [2018-03-28 12:45:19,289 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 700 transitions. Word has length 32 [2018-03-28 12:45:19,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:19,290 INFO L459 AbstractCegarLoop]: Abstraction has 537 states and 700 transitions. [2018-03-28 12:45:19,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-28 12:45:19,290 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 700 transitions. [2018-03-28 12:45:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-28 12:45:19,291 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:19,291 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] [2018-03-28 12:45:19,292 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]=== [2018-03-28 12:45:19,292 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 [2018-03-28 12:45:19,302 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:19,355 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:19,362 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 [2018-03-28 12:45:19,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:45:19,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:45:19,389 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:45:19,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:19,405 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:19,449 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:19,450 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-03-28 12:45:19,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 12:45:19,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 12:45:19,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:45:19,450 INFO L87 Difference]: Start difference. First operand 537 states and 700 transitions. Second operand 6 states. [2018-03-28 12:45:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:19,706 INFO L93 Difference]: Finished difference Result 843 states and 1079 transitions. [2018-03-28 12:45:19,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:45:19,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-03-28 12:45:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:19,710 INFO L225 Difference]: With dead ends: 843 [2018-03-28 12:45:19,710 INFO L226 Difference]: Without dead ends: 839 [2018-03-28 12:45:19,711 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 [2018-03-28 12:45:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-03-28 12:45:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 780. [2018-03-28 12:45:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-03-28 12:45:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1021 transitions. [2018-03-28 12:45:19,741 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1021 transitions. Word has length 34 [2018-03-28 12:45:19,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:19,741 INFO L459 AbstractCegarLoop]: Abstraction has 780 states and 1021 transitions. [2018-03-28 12:45:19,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 12:45:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1021 transitions. [2018-03-28 12:45:19,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-28 12:45:19,742 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:19,742 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] [2018-03-28 12:45:19,742 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]=== [2018-03-28 12:45:19,743 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 [2018-03-28 12:45:19,754 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:19,797 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:19,880 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:19,995 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:19,995 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 11 [2018-03-28 12:45:19,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-03-28 12:45:19,996 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-03-28 12:45:19,996 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-03-28 12:45:19,996 INFO L87 Difference]: Start difference. First operand 780 states and 1021 transitions. Second operand 11 states. [2018-03-28 12:45:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:20,247 INFO L93 Difference]: Finished difference Result 1929 states and 2567 transitions. [2018-03-28 12:45:20,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-28 12:45:20,249 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2018-03-28 12:45:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:20,255 INFO L225 Difference]: With dead ends: 1929 [2018-03-28 12:45:20,256 INFO L226 Difference]: Without dead ends: 1242 [2018-03-28 12:45:20,258 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 [2018-03-28 12:45:20,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2018-03-28 12:45:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1228. [2018-03-28 12:45:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2018-03-28 12:45:20,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1599 transitions. [2018-03-28 12:45:20,331 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1599 transitions. Word has length 34 [2018-03-28 12:45:20,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:20,332 INFO L459 AbstractCegarLoop]: Abstraction has 1228 states and 1599 transitions. [2018-03-28 12:45:20,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-03-28 12:45:20,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1599 transitions. [2018-03-28 12:45:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-03-28 12:45:20,333 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:20,333 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] [2018-03-28 12:45:20,334 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]=== [2018-03-28 12:45:20,334 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 [2018-03-28 12:45:20,349 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:20,393 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:20,458 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:20,572 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:20,573 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-28 12:45:20,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:45:20,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:45:20,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:45:20,574 INFO L87 Difference]: Start difference. First operand 1228 states and 1599 transitions. Second operand 9 states. [2018-03-28 12:45:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:20,948 INFO L93 Difference]: Finished difference Result 4681 states and 6073 transitions. [2018-03-28 12:45:20,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 12:45:20,949 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-03-28 12:45:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:20,968 INFO L225 Difference]: With dead ends: 4681 [2018-03-28 12:45:20,969 INFO L226 Difference]: Without dead ends: 3468 [2018-03-28 12:45:20,975 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 [2018-03-28 12:45:20,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2018-03-28 12:45:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3334. [2018-03-28 12:45:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3334 states. [2018-03-28 12:45:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4215 transitions. [2018-03-28 12:45:21,180 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4215 transitions. Word has length 36 [2018-03-28 12:45:21,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:21,180 INFO L459 AbstractCegarLoop]: Abstraction has 3334 states and 4215 transitions. [2018-03-28 12:45:21,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:45:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4215 transitions. [2018-03-28 12:45:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-28 12:45:21,182 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:21,182 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] [2018-03-28 12:45:21,182 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]=== [2018-03-28 12:45:21,182 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 [2018-03-28 12:45:21,194 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:21,246 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:21,316 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:21,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:21,479 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:21,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-28 12:45:21,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:45:21,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:45:21,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:45:21,480 INFO L87 Difference]: Start difference. First operand 3334 states and 4215 transitions. Second operand 9 states. [2018-03-28 12:45:21,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:21,969 INFO L93 Difference]: Finished difference Result 7467 states and 9528 transitions. [2018-03-28 12:45:21,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-28 12:45:21,970 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-03-28 12:45:21,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:21,993 INFO L225 Difference]: With dead ends: 7467 [2018-03-28 12:45:21,993 INFO L226 Difference]: Without dead ends: 4360 [2018-03-28 12:45:22,003 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 [2018-03-28 12:45:22,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-03-28 12:45:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4222. [2018-03-28 12:45:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4222 states. [2018-03-28 12:45:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 5303 transitions. [2018-03-28 12:45:22,239 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 5303 transitions. Word has length 54 [2018-03-28 12:45:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:22,240 INFO L459 AbstractCegarLoop]: Abstraction has 4222 states and 5303 transitions. [2018-03-28 12:45:22,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:45:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 5303 transitions. [2018-03-28 12:45:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-03-28 12:45:22,241 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:22,242 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] [2018-03-28 12:45:22,242 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]=== [2018-03-28 12:45:22,242 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 [2018-03-28 12:45:22,251 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:22,330 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:22,410 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:22,571 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:22,594 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:22,594 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-03-28 12:45:22,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-28 12:45:22,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-28 12:45:22,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-03-28 12:45:22,595 INFO L87 Difference]: Start difference. First operand 4222 states and 5303 transitions. Second operand 13 states. [2018-03-28 12:45:23,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:23,379 INFO L93 Difference]: Finished difference Result 13021 states and 16390 transitions. [2018-03-28 12:45:23,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-28 12:45:23,379 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2018-03-28 12:45:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:23,427 INFO L225 Difference]: With dead ends: 13021 [2018-03-28 12:45:23,427 INFO L226 Difference]: Without dead ends: 8814 [2018-03-28 12:45:23,444 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2018-03-28 12:45:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8814 states. [2018-03-28 12:45:23,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8814 to 7296. [2018-03-28 12:45:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-03-28 12:45:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 8931 transitions. [2018-03-28 12:45:23,856 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 8931 transitions. Word has length 59 [2018-03-28 12:45:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:23,857 INFO L459 AbstractCegarLoop]: Abstraction has 7296 states and 8931 transitions. [2018-03-28 12:45:23,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-28 12:45:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 8931 transitions. [2018-03-28 12:45:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-28 12:45:23,858 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:23,859 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] [2018-03-28 12:45:23,859 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]=== [2018-03-28 12:45:23,859 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 [2018-03-28 12:45:23,871 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:23,925 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:23,997 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:24,109 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:45:24,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2018-03-28 12:45:24,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-03-28 12:45:24,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-03-28 12:45:24,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-03-28 12:45:24,110 INFO L87 Difference]: Start difference. First operand 7296 states and 8931 transitions. Second operand 11 states. [2018-03-28 12:45:24,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:24,739 INFO L93 Difference]: Finished difference Result 9653 states and 11715 transitions. [2018-03-28 12:45:24,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-28 12:45:24,740 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-03-28 12:45:24,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:24,748 INFO L225 Difference]: With dead ends: 9653 [2018-03-28 12:45:24,748 INFO L226 Difference]: Without dead ends: 2496 [2018-03-28 12:45:24,759 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 [2018-03-28 12:45:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2018-03-28 12:45:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2389. [2018-03-28 12:45:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2018-03-28 12:45:24,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 2864 transitions. [2018-03-28 12:45:24,828 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 2864 transitions. Word has length 62 [2018-03-28 12:45:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:24,829 INFO L459 AbstractCegarLoop]: Abstraction has 2389 states and 2864 transitions. [2018-03-28 12:45:24,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-03-28 12:45:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 2864 transitions. [2018-03-28 12:45:24,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-03-28 12:45:24,830 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:24,830 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] [2018-03-28 12:45:24,831 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]=== [2018-03-28 12:45:24,831 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 [2018-03-28 12:45:24,838 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:24,918 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:25,194 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:25,303 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:25,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-03-28 12:45:25,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:45:25,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:45:25,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:45:25,304 INFO L87 Difference]: Start difference. First operand 2389 states and 2864 transitions. Second operand 10 states. [2018-03-28 12:45:26,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:26,010 INFO L93 Difference]: Finished difference Result 10619 states and 13269 transitions. [2018-03-28 12:45:26,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 12:45:26,010 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-03-28 12:45:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:26,052 INFO L225 Difference]: With dead ends: 10619 [2018-03-28 12:45:26,052 INFO L226 Difference]: Without dead ends: 8245 [2018-03-28 12:45:26,061 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 [2018-03-28 12:45:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2018-03-28 12:45:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 7581. [2018-03-28 12:45:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7581 states. [2018-03-28 12:45:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7581 states to 7581 states and 9265 transitions. [2018-03-28 12:45:26,464 INFO L78 Accepts]: Start accepts. Automaton has 7581 states and 9265 transitions. Word has length 76 [2018-03-28 12:45:26,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:26,465 INFO L459 AbstractCegarLoop]: Abstraction has 7581 states and 9265 transitions. [2018-03-28 12:45:26,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:45:26,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7581 states and 9265 transitions. [2018-03-28 12:45:26,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-03-28 12:45:26,468 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:26,468 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] [2018-03-28 12:45:26,468 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]=== [2018-03-28 12:45:26,469 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 [2018-03-28 12:45:26,477 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:26,534 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:26,642 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:26,786 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:26,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-03-28 12:45:26,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:45:26,818 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:45:26,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:45:26,818 INFO L87 Difference]: Start difference. First operand 7581 states and 9265 transitions. Second operand 16 states. [2018-03-28 12:45:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:27,584 INFO L93 Difference]: Finished difference Result 17954 states and 22306 transitions. [2018-03-28 12:45:27,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 12:45:27,584 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2018-03-28 12:45:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:27,626 INFO L225 Difference]: With dead ends: 17954 [2018-03-28 12:45:27,626 INFO L226 Difference]: Without dead ends: 12247 [2018-03-28 12:45:27,641 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2018-03-28 12:45:27,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12247 states. [2018-03-28 12:45:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12247 to 10393. [2018-03-28 12:45:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10393 states. [2018-03-28 12:45:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 12949 transitions. [2018-03-28 12:45:28,129 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 12949 transitions. Word has length 81 [2018-03-28 12:45:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:28,130 INFO L459 AbstractCegarLoop]: Abstraction has 10393 states and 12949 transitions. [2018-03-28 12:45:28,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:45:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 12949 transitions. [2018-03-28 12:45:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-03-28 12:45:28,133 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:28,133 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] [2018-03-28 12:45:28,134 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]=== [2018-03-28 12:45:28,134 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 [2018-03-28 12:45:28,142 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:28,197 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:28,289 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:28,467 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:28,468 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-03-28 12:45:28,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-28 12:45:28,468 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-28 12:45:28,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-03-28 12:45:28,468 INFO L87 Difference]: Start difference. First operand 10393 states and 12949 transitions. Second operand 17 states. [2018-03-28 12:45:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:29,534 INFO L93 Difference]: Finished difference Result 22682 states and 29708 transitions. [2018-03-28 12:45:29,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-03-28 12:45:29,534 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2018-03-28 12:45:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:29,592 INFO L225 Difference]: With dead ends: 22682 [2018-03-28 12:45:29,592 INFO L226 Difference]: Without dead ends: 14163 [2018-03-28 12:45:29,618 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 [2018-03-28 12:45:29,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14163 states. [2018-03-28 12:45:30,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14163 to 9121. [2018-03-28 12:45:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9121 states. [2018-03-28 12:45:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9121 states to 9121 states and 11355 transitions. [2018-03-28 12:45:30,222 INFO L78 Accepts]: Start accepts. Automaton has 9121 states and 11355 transitions. Word has length 82 [2018-03-28 12:45:30,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:30,222 INFO L459 AbstractCegarLoop]: Abstraction has 9121 states and 11355 transitions. [2018-03-28 12:45:30,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-28 12:45:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 9121 states and 11355 transitions. [2018-03-28 12:45:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:45:30,225 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:30,226 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] [2018-03-28 12:45:30,226 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]=== [2018-03-28 12:45:30,226 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 [2018-03-28 12:45:30,234 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:30,299 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:30,380 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:30,567 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:30,567 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-03-28 12:45:30,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-28 12:45:30,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-28 12:45:30,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-03-28 12:45:30,568 INFO L87 Difference]: Start difference. First operand 9121 states and 11355 transitions. Second operand 13 states. [2018-03-28 12:45:31,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:31,158 INFO L93 Difference]: Finished difference Result 18243 states and 22674 transitions. [2018-03-28 12:45:31,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-28 12:45:31,159 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 83 [2018-03-28 12:45:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:31,185 INFO L225 Difference]: With dead ends: 18243 [2018-03-28 12:45:31,186 INFO L226 Difference]: Without dead ends: 8957 [2018-03-28 12:45:31,210 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2018-03-28 12:45:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8957 states. [2018-03-28 12:45:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8957 to 8761. [2018-03-28 12:45:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8761 states. [2018-03-28 12:45:31,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8761 states to 8761 states and 10911 transitions. [2018-03-28 12:45:31,690 INFO L78 Accepts]: Start accepts. Automaton has 8761 states and 10911 transitions. Word has length 83 [2018-03-28 12:45:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:31,690 INFO L459 AbstractCegarLoop]: Abstraction has 8761 states and 10911 transitions. [2018-03-28 12:45:31,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-28 12:45:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8761 states and 10911 transitions. [2018-03-28 12:45:31,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-03-28 12:45:31,693 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:31,693 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] [2018-03-28 12:45:31,693 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]=== [2018-03-28 12:45:31,693 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 [2018-03-28 12:45:31,701 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:31,750 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:45:31,831 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 38 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:32,009 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:32,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 17 [2018-03-28 12:45:32,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-28 12:45:32,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-28 12:45:32,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-03-28 12:45:32,010 INFO L87 Difference]: Start difference. First operand 8761 states and 10911 transitions. Second operand 17 states. [2018-03-28 12:45:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:32,860 INFO L93 Difference]: Finished difference Result 21585 states and 27348 transitions. [2018-03-28 12:45:32,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-28 12:45:32,860 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2018-03-28 12:45:32,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:32,887 INFO L225 Difference]: With dead ends: 21585 [2018-03-28 12:45:32,888 INFO L226 Difference]: Without dead ends: 12676 [2018-03-28 12:45:32,900 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 [2018-03-28 12:45:32,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12676 states. [2018-03-28 12:45:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12676 to 10640. [2018-03-28 12:45:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10640 states. [2018-03-28 12:45:33,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10640 states to 10640 states and 13496 transitions. [2018-03-28 12:45:33,263 INFO L78 Accepts]: Start accepts. Automaton has 10640 states and 13496 transitions. Word has length 88 [2018-03-28 12:45:33,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:33,264 INFO L459 AbstractCegarLoop]: Abstraction has 10640 states and 13496 transitions. [2018-03-28 12:45:33,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-28 12:45:33,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10640 states and 13496 transitions. [2018-03-28 12:45:33,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-03-28 12:45:33,266 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:33,266 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] [2018-03-28 12:45:33,266 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]=== [2018-03-28 12:45:33,266 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 [2018-03-28 12:45:33,284 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:33,340 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-28 12:45:33,443 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-28 12:45:33,596 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:33,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-03-28 12:45:33,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-28 12:45:33,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-28 12:45:33,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-03-28 12:45:33,597 INFO L87 Difference]: Start difference. First operand 10640 states and 13496 transitions. Second operand 13 states. [2018-03-28 12:45:35,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:35,593 INFO L93 Difference]: Finished difference Result 43420 states and 57079 transitions. [2018-03-28 12:45:35,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-28 12:45:35,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2018-03-28 12:45:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:35,700 INFO L225 Difference]: With dead ends: 43420 [2018-03-28 12:45:35,700 INFO L226 Difference]: Without dead ends: 32795 [2018-03-28 12:45:35,736 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2018-03-28 12:45:35,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32795 states. [2018-03-28 12:45:36,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32795 to 26574. [2018-03-28 12:45:36,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26574 states. [2018-03-28 12:45:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26574 states to 26574 states and 34015 transitions. [2018-03-28 12:45:36,862 INFO L78 Accepts]: Start accepts. Automaton has 26574 states and 34015 transitions. Word has length 92 [2018-03-28 12:45:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:36,862 INFO L459 AbstractCegarLoop]: Abstraction has 26574 states and 34015 transitions. [2018-03-28 12:45:36,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-28 12:45:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 26574 states and 34015 transitions. [2018-03-28 12:45:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-03-28 12:45:36,866 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:36,866 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] [2018-03-28 12:45:36,866 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]=== [2018-03-28 12:45:36,866 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 [2018-03-28 12:45:36,876 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:36,923 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-03-28 12:45:36,953 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-03-28 12:45:37,092 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-28 12:45:37,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2018-03-28 12:45:37,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:45:37,093 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:45:37,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:45:37,093 INFO L87 Difference]: Start difference. First operand 26574 states and 34015 transitions. Second operand 10 states. [2018-03-28 12:45:38,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:38,153 INFO L93 Difference]: Finished difference Result 42804 states and 54563 transitions. [2018-03-28 12:45:38,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:45:38,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2018-03-28 12:45:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:38,181 INFO L225 Difference]: With dead ends: 42804 [2018-03-28 12:45:38,181 INFO L226 Difference]: Without dead ends: 15165 [2018-03-28 12:45:38,214 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 [2018-03-28 12:45:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15165 states. [2018-03-28 12:45:38,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15165 to 13511. [2018-03-28 12:45:38,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13511 states. [2018-03-28 12:45:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 17389 transitions. [2018-03-28 12:45:38,867 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 17389 transitions. Word has length 92 [2018-03-28 12:45:38,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:38,867 INFO L459 AbstractCegarLoop]: Abstraction has 13511 states and 17389 transitions. [2018-03-28 12:45:38,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:45:38,867 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 17389 transitions. [2018-03-28 12:45:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-03-28 12:45:38,871 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:38,871 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] [2018-03-28 12:45:38,871 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]=== [2018-03-28 12:45:38,871 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 [2018-03-28 12:45:38,882 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:38,937 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:45:39,015 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:45:39,236 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:39,237 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2018-03-28 12:45:39,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-28 12:45:39,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-28 12:45:39,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-03-28 12:45:39,238 INFO L87 Difference]: Start difference. First operand 13511 states and 17389 transitions. Second operand 22 states. [2018-03-28 12:45:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:41,531 INFO L93 Difference]: Finished difference Result 42066 states and 57162 transitions. [2018-03-28 12:45:41,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-28 12:45:41,531 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 109 [2018-03-28 12:45:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:41,606 INFO L225 Difference]: With dead ends: 42066 [2018-03-28 12:45:41,606 INFO L226 Difference]: Without dead ends: 28611 [2018-03-28 12:45:41,635 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=433, Invalid=1373, Unknown=0, NotChecked=0, Total=1806 [2018-03-28 12:45:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28611 states. [2018-03-28 12:45:42,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28611 to 18527. [2018-03-28 12:45:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18527 states. [2018-03-28 12:45:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18527 states to 18527 states and 25001 transitions. [2018-03-28 12:45:42,730 INFO L78 Accepts]: Start accepts. Automaton has 18527 states and 25001 transitions. Word has length 109 [2018-03-28 12:45:42,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:42,730 INFO L459 AbstractCegarLoop]: Abstraction has 18527 states and 25001 transitions. [2018-03-28 12:45:42,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-28 12:45:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand 18527 states and 25001 transitions. [2018-03-28 12:45:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-03-28 12:45:42,732 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:42,733 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] [2018-03-28 12:45:42,733 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]=== [2018-03-28 12:45:42,733 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 [2018-03-28 12:45:42,755 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:42,830 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-03-28 12:45:42,885 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 70 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-03-28 12:45:43,049 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:43,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-03-28 12:45:43,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:45:43,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:45:43,049 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:45:43,050 INFO L87 Difference]: Start difference. First operand 18527 states and 25001 transitions. Second operand 16 states. [2018-03-28 12:45:44,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:44,911 INFO L93 Difference]: Finished difference Result 42030 states and 57210 transitions. [2018-03-28 12:45:44,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 12:45:44,911 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 118 [2018-03-28 12:45:44,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:44,953 INFO L225 Difference]: With dead ends: 42030 [2018-03-28 12:45:44,953 INFO L226 Difference]: Without dead ends: 23559 [2018-03-28 12:45:44,977 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 [2018-03-28 12:45:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23559 states. [2018-03-28 12:45:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23559 to 23191. [2018-03-28 12:45:46,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23191 states. [2018-03-28 12:45:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23191 states to 23191 states and 31381 transitions. [2018-03-28 12:45:46,049 INFO L78 Accepts]: Start accepts. Automaton has 23191 states and 31381 transitions. Word has length 118 [2018-03-28 12:45:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:46,049 INFO L459 AbstractCegarLoop]: Abstraction has 23191 states and 31381 transitions. [2018-03-28 12:45:46,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:45:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23191 states and 31381 transitions. [2018-03-28 12:45:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-03-28 12:45:46,052 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:46,052 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] [2018-03-28 12:45:46,052 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]=== [2018-03-28 12:45:46,053 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 [2018-03-28 12:45:46,058 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:46,115 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-03-28 12:45:46,176 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-03-28 12:45:46,361 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:46,362 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 21 [2018-03-28 12:45:46,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-03-28 12:45:46,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-03-28 12:45:46,362 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-03-28 12:45:46,362 INFO L87 Difference]: Start difference. First operand 23191 states and 31381 transitions. Second operand 21 states. [2018-03-28 12:45:46,527 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 6 [2018-03-28 12:45:48,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:48,645 INFO L93 Difference]: Finished difference Result 54072 states and 74254 transitions. [2018-03-28 12:45:48,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-28 12:45:48,645 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 146 [2018-03-28 12:45:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:48,701 INFO L225 Difference]: With dead ends: 54072 [2018-03-28 12:45:48,701 INFO L226 Difference]: Without dead ends: 30937 [2018-03-28 12:45:48,736 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2018-03-28 12:45:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30937 states. [2018-03-28 12:45:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30937 to 23367. [2018-03-28 12:45:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23367 states. [2018-03-28 12:45:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23367 states to 23367 states and 31733 transitions. [2018-03-28 12:45:50,007 INFO L78 Accepts]: Start accepts. Automaton has 23367 states and 31733 transitions. Word has length 146 [2018-03-28 12:45:50,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:50,008 INFO L459 AbstractCegarLoop]: Abstraction has 23367 states and 31733 transitions. [2018-03-28 12:45:50,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-03-28 12:45:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 23367 states and 31733 transitions. [2018-03-28 12:45:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-03-28 12:45:50,010 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:50,010 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] [2018-03-28 12:45:50,010 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]=== [2018-03-28 12:45:50,010 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 [2018-03-28 12:45:50,016 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:50,074 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 202 proven. 7 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-03-28 12:45:50,147 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:50,277 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 136 proven. 49 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-03-28 12:45:50,299 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:50,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-03-28 12:45:50,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:45:50,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:45:50,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:45:50,300 INFO L87 Difference]: Start difference. First operand 23367 states and 31733 transitions. Second operand 16 states. [2018-03-28 12:45:52,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:52,268 INFO L93 Difference]: Finished difference Result 56312 states and 77694 transitions. [2018-03-28 12:45:52,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-28 12:45:52,296 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 170 [2018-03-28 12:45:52,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:52,350 INFO L225 Difference]: With dead ends: 56312 [2018-03-28 12:45:52,350 INFO L226 Difference]: Without dead ends: 33001 [2018-03-28 12:45:52,380 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 [2018-03-28 12:45:52,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33001 states. [2018-03-28 12:45:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33001 to 32695. [2018-03-28 12:45:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32695 states. [2018-03-28 12:45:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32695 states to 32695 states and 44581 transitions. [2018-03-28 12:45:53,995 INFO L78 Accepts]: Start accepts. Automaton has 32695 states and 44581 transitions. Word has length 170 [2018-03-28 12:45:53,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:53,995 INFO L459 AbstractCegarLoop]: Abstraction has 32695 states and 44581 transitions. [2018-03-28 12:45:53,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:45:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 32695 states and 44581 transitions. [2018-03-28 12:45:53,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-03-28 12:45:53,999 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:53,999 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] [2018-03-28 12:45:53,999 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]=== [2018-03-28 12:45:53,999 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 [2018-03-28 12:45:54,111 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:54,195 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 87 proven. 107 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-03-28 12:45:54,242 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:45:54,394 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 81 proven. 113 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-03-28 12:45:54,427 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:45:54,427 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-03-28 12:45:54,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:45:54,427 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:45:54,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-03-28 12:45:54,428 INFO L87 Difference]: Start difference. First operand 32695 states and 44581 transitions. Second operand 12 states. [2018-03-28 12:45:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:45:56,616 INFO L93 Difference]: Finished difference Result 76927 states and 104993 transitions. [2018-03-28 12:45:56,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-28 12:45:56,617 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2018-03-28 12:45:56,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:45:56,700 INFO L225 Difference]: With dead ends: 76927 [2018-03-28 12:45:56,701 INFO L226 Difference]: Without dead ends: 44288 [2018-03-28 12:45:56,753 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 [2018-03-28 12:45:56,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44288 states. [2018-03-28 12:45:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44288 to 43695. [2018-03-28 12:45:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43695 states. [2018-03-28 12:45:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43695 states to 43695 states and 59675 transitions. [2018-03-28 12:45:59,714 INFO L78 Accepts]: Start accepts. Automaton has 43695 states and 59675 transitions. Word has length 170 [2018-03-28 12:45:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:45:59,715 INFO L459 AbstractCegarLoop]: Abstraction has 43695 states and 59675 transitions. [2018-03-28 12:45:59,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:45:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 43695 states and 59675 transitions. [2018-03-28 12:45:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-03-28 12:45:59,718 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:45:59,718 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] [2018-03-28 12:45:59,718 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]=== [2018-03-28 12:45:59,719 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 [2018-03-28 12:45:59,726 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:45:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:45:59,786 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:45:59,920 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 208 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-03-28 12:45:59,921 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:46:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 156 proven. 36 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-03-28 12:46:00,064 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:46:00,064 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-28 12:46:00,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-28 12:46:00,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-28 12:46:00,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:46:00,065 INFO L87 Difference]: Start difference. First operand 43695 states and 59675 transitions. Second operand 15 states. [2018-03-28 12:46:03,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:46:03,004 INFO L93 Difference]: Finished difference Result 100204 states and 137062 transitions. [2018-03-28 12:46:03,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-28 12:46:03,019 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 172 [2018-03-28 12:46:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:46:03,127 INFO L225 Difference]: With dead ends: 100204 [2018-03-28 12:46:03,127 INFO L226 Difference]: Without dead ends: 56565 [2018-03-28 12:46:03,190 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 [2018-03-28 12:46:03,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56565 states. [2018-03-28 12:46:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56565 to 50015. [2018-03-28 12:46:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50015 states. [2018-03-28 12:46:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50015 states to 50015 states and 68117 transitions. [2018-03-28 12:46:05,820 INFO L78 Accepts]: Start accepts. Automaton has 50015 states and 68117 transitions. Word has length 172 [2018-03-28 12:46:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:46:05,821 INFO L459 AbstractCegarLoop]: Abstraction has 50015 states and 68117 transitions. [2018-03-28 12:46:05,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-28 12:46:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 50015 states and 68117 transitions. [2018-03-28 12:46:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-03-28 12:46:05,823 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:46:05,823 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] [2018-03-28 12:46:05,824 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]=== [2018-03-28 12:46:05,824 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 [2018-03-28 12:46:05,829 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:46:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:46:05,887 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:46:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 236 proven. 8 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-03-28 12:46:05,949 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:46:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 154 proven. 58 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-03-28 12:46:06,076 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:46:06,076 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-28 12:46:06,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-28 12:46:06,076 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-28 12:46:06,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:46:06,077 INFO L87 Difference]: Start difference. First operand 50015 states and 68117 transitions. Second operand 15 states. [2018-03-28 12:46:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:46:09,170 INFO L93 Difference]: Finished difference Result 106524 states and 145064 transitions. [2018-03-28 12:46:09,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-28 12:46:09,171 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 177 [2018-03-28 12:46:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:46:09,275 INFO L225 Difference]: With dead ends: 106524 [2018-03-28 12:46:09,275 INFO L226 Difference]: Without dead ends: 56565 [2018-03-28 12:46:09,341 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 [2018-03-28 12:46:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56565 states. [2018-03-28 12:46:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56565 to 56335. [2018-03-28 12:46:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56335 states. [2018-03-28 12:46:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56335 states to 56335 states and 76339 transitions. [2018-03-28 12:46:13,187 INFO L78 Accepts]: Start accepts. Automaton has 56335 states and 76339 transitions. Word has length 177 [2018-03-28 12:46:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:46:13,187 INFO L459 AbstractCegarLoop]: Abstraction has 56335 states and 76339 transitions. [2018-03-28 12:46:13,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-28 12:46:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 56335 states and 76339 transitions. [2018-03-28 12:46:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-03-28 12:46:13,190 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:46:13,190 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] [2018-03-28 12:46:13,190 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]=== [2018-03-28 12:46:13,190 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 [2018-03-28 12:46:13,195 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:46:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:46:13,266 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:46:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 150 proven. 114 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-03-28 12:46:13,376 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:46:13,535 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 152 proven. 112 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-03-28 12:46:13,556 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:46:13,556 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-03-28 12:46:13,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-28 12:46:13,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-28 12:46:13,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:46:13,557 INFO L87 Difference]: Start difference. First operand 56335 states and 76339 transitions. Second operand 15 states. [2018-03-28 12:46:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:46:18,154 INFO L93 Difference]: Finished difference Result 85505 states and 117559 transitions. [2018-03-28 12:46:18,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-03-28 12:46:18,154 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 181 [2018-03-28 12:46:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:46:18,325 INFO L225 Difference]: With dead ends: 85505 [2018-03-28 12:46:18,325 INFO L226 Difference]: Without dead ends: 85502 [2018-03-28 12:46:18,370 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 [2018-03-28 12:46:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85502 states. [2018-03-28 12:46:22,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85502 to 82786. [2018-03-28 12:46:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82786 states. [2018-03-28 12:46:22,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82786 states to 82786 states and 112825 transitions. [2018-03-28 12:46:22,695 INFO L78 Accepts]: Start accepts. Automaton has 82786 states and 112825 transitions. Word has length 181 [2018-03-28 12:46:22,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:46:22,696 INFO L459 AbstractCegarLoop]: Abstraction has 82786 states and 112825 transitions. [2018-03-28 12:46:22,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-28 12:46:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 82786 states and 112825 transitions. [2018-03-28 12:46:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-03-28 12:46:22,698 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:46:22,699 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] [2018-03-28 12:46:22,699 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]=== [2018-03-28 12:46:22,699 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 [2018-03-28 12:46:22,704 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:46:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:46:22,772 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:46:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-03-28 12:46:22,936 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:46:23,158 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 [2018-03-28 12:46:23,158 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:46:23,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:46:23,159 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2018-03-28 12:46:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 86 proven. 140 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-03-28 12:46:23,274 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:46:23,274 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2018-03-28 12:46:23,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-03-28 12:46:23,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-03-28 12:46:23,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2018-03-28 12:46:23,275 INFO L87 Difference]: Start difference. First operand 82786 states and 112825 transitions. Second operand 21 states. [2018-03-28 12:46:31,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:46:31,911 INFO L93 Difference]: Finished difference Result 144873 states and 199251 transitions. [2018-03-28 12:46:33,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-03-28 12:46:33,141 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 181 [2018-03-28 12:46:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:46:33,441 INFO L225 Difference]: With dead ends: 144873 [2018-03-28 12:46:33,442 INFO L226 Difference]: Without dead ends: 144870 [2018-03-28 12:46:33,489 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 360 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=829, Invalid=2831, Unknown=0, NotChecked=0, Total=3660 [2018-03-28 12:46:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144870 states. [2018-03-28 12:46:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144870 to 139328. [2018-03-28 12:46:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139328 states. [2018-03-28 12:46:40,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139328 states to 139328 states and 190294 transitions. [2018-03-28 12:46:40,572 INFO L78 Accepts]: Start accepts. Automaton has 139328 states and 190294 transitions. Word has length 181 [2018-03-28 12:46:40,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:46:40,573 INFO L459 AbstractCegarLoop]: Abstraction has 139328 states and 190294 transitions. [2018-03-28 12:46:40,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-03-28 12:46:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 139328 states and 190294 transitions. [2018-03-28 12:46:40,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-03-28 12:46:40,576 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:46:40,576 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] [2018-03-28 12:46:40,576 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]=== [2018-03-28 12:46:40,576 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 [2018-03-28 12:46:40,581 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:46:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:46:40,641 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:46:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 230 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-03-28 12:46:40,716 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:46:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 136 proven. 76 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-03-28 12:46:40,860 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:46:40,860 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-28 12:46:40,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-28 12:46:40,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-28 12:46:40,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:46:40,861 INFO L87 Difference]: Start difference. First operand 139328 states and 190294 transitions. Second operand 15 states. [2018-03-28 12:46:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:46:47,028 INFO L93 Difference]: Finished difference Result 251973 states and 342742 transitions. [2018-03-28 12:46:47,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-28 12:46:47,028 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 184 [2018-03-28 12:46:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:46:47,256 INFO L225 Difference]: With dead ends: 251973 [2018-03-28 12:46:47,256 INFO L226 Difference]: Without dead ends: 112701 [2018-03-28 12:46:47,415 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 [2018-03-28 12:46:47,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112701 states. [2018-03-28 12:46:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112701 to 96342. [2018-03-28 12:46:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96342 states. [2018-03-28 12:46:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96342 states to 96342 states and 130164 transitions. [2018-03-28 12:46:54,863 INFO L78 Accepts]: Start accepts. Automaton has 96342 states and 130164 transitions. Word has length 184 [2018-03-28 12:46:54,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:46:54,863 INFO L459 AbstractCegarLoop]: Abstraction has 96342 states and 130164 transitions. [2018-03-28 12:46:54,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-28 12:46:54,863 INFO L276 IsEmpty]: Start isEmpty. Operand 96342 states and 130164 transitions. [2018-03-28 12:46:54,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-03-28 12:46:54,866 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:46:54,866 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] [2018-03-28 12:46:54,866 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]=== [2018-03-28 12:46:54,867 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 [2018-03-28 12:46:54,872 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:46:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:46:54,932 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:46:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 196 proven. 4 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-03-28 12:46:55,002 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:46:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 102 proven. 90 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2018-03-28 12:46:55,119 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:46:55,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-03-28 12:46:55,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-28 12:46:55,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-28 12:46:55,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-03-28 12:46:55,121 INFO L87 Difference]: Start difference. First operand 96342 states and 130164 transitions. Second operand 13 states. [2018-03-28 12:46:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:46:58,428 INFO L93 Difference]: Finished difference Result 152471 states and 201817 transitions. [2018-03-28 12:46:58,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-03-28 12:46:58,428 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2018-03-28 12:46:58,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:46:58,546 INFO L225 Difference]: With dead ends: 152471 [2018-03-28 12:46:58,546 INFO L226 Difference]: Without dead ends: 53944 [2018-03-28 12:46:58,693 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 [2018-03-28 12:46:58,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53944 states. [2018-03-28 12:47:01,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53944 to 53409. [2018-03-28 12:47:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53409 states. [2018-03-28 12:47:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53409 states to 53409 states and 67833 transitions. [2018-03-28 12:47:01,564 INFO L78 Accepts]: Start accepts. Automaton has 53409 states and 67833 transitions. Word has length 193 [2018-03-28 12:47:01,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:47:01,565 INFO L459 AbstractCegarLoop]: Abstraction has 53409 states and 67833 transitions. [2018-03-28 12:47:01,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-28 12:47:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 53409 states and 67833 transitions. [2018-03-28 12:47:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-03-28 12:47:01,572 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:47:01,572 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] [2018-03-28 12:47:01,572 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]=== [2018-03-28 12:47:01,573 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 [2018-03-28 12:47:01,578 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:47:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:47:01,664 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:47:01,755 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 218 proven. 7 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-03-28 12:47:01,755 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:47:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-03-28 12:47:01,925 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:47:01,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-03-28 12:47:01,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:47:01,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:47:01,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:47:01,926 INFO L87 Difference]: Start difference. First operand 53409 states and 67833 transitions. Second operand 16 states. [2018-03-28 12:47:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:47:04,933 INFO L93 Difference]: Finished difference Result 104407 states and 132386 transitions. [2018-03-28 12:47:04,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-28 12:47:04,933 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 249 [2018-03-28 12:47:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:47:05,054 INFO L225 Difference]: With dead ends: 104407 [2018-03-28 12:47:05,055 INFO L226 Difference]: Without dead ends: 48240 [2018-03-28 12:47:05,142 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 [2018-03-28 12:47:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48240 states. Received shutdown request... [2018-03-28 12:47:07,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48240 to 47584. [2018-03-28 12:47:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47584 states. [2018-03-28 12:47:07,714 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 12:47:07,719 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 12:47:07,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:07 BoogieIcfgContainer [2018-03-28 12:47:07,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 12:47:07,720 INFO L168 Benchmark]: Toolchain (without parser) took 111407.73 ms. Allocated memory was 305.1 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 242.2 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.8 GB. Max. memory is 5.3 GB. [2018-03-28 12:47:07,721 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 305.1 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 12:47:07,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.19 ms. Allocated memory is still 305.1 MB. Free memory was 241.2 MB in the beginning and 216.1 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-03-28 12:47:07,721 INFO L168 Benchmark]: Boogie Preprocessor took 65.61 ms. Allocated memory is still 305.1 MB. Free memory was 216.1 MB in the beginning and 213.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-03-28 12:47:07,722 INFO L168 Benchmark]: RCFGBuilder took 650.41 ms. Allocated memory was 305.1 MB in the beginning and 468.7 MB in the end (delta: 163.6 MB). Free memory was 213.1 MB in the beginning and 393.6 MB in the end (delta: -180.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. [2018-03-28 12:47:07,722 INFO L168 Benchmark]: TraceAbstraction took 110322.01 ms. Allocated memory was 468.7 MB in the beginning and 3.4 GB in the end (delta: 2.9 GB). Free memory was 393.6 MB in the beginning and 1.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.8 GB. Max. memory is 5.3 GB. [2018-03-28 12:47:07,724 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 305.1 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 364.19 ms. Allocated memory is still 305.1 MB. Free memory was 241.2 MB in the beginning and 216.1 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 65.61 ms. Allocated memory is still 305.1 MB. Free memory was 216.1 MB in the beginning and 213.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 650.41 ms. Allocated memory was 305.1 MB in the beginning and 468.7 MB in the end (delta: 163.6 MB). Free memory was 213.1 MB in the beginning and 393.6 MB in the end (delta: -180.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 110322.01 ms. Allocated memory was 468.7 MB in the beginning and 3.4 GB in the end (delta: 2.9 GB). Free memory was 393.6 MB in the beginning and 1.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.8 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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 (1 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, 56.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5501 SDtfs, 16865 SDslu, 15846 SDs, 0 SdLazy, 15881 SolverSat, 2495 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6618 GetRequests, 5934 SyntacticMatches, 19 SemanticMatches, 665 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4197 ImplicationChecksByTransitivity, 7.2s 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: 44.0s AutomataMinimizationTime, 31 MinimizatonAttempts, 70726 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 6.1s 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-0-2018-03-28_12-47-07-731.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-0-2018-03-28_12-47-07-731.csv Completed graceful shutdown