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/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-453dfda-m [2018-04-09 22:35:34,182 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 22:35:34,184 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 22:35:34,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 22:35:34,200 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 22:35:34,201 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 22:35:34,202 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 22:35:34,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 22:35:34,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 22:35:34,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 22:35:34,208 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 22:35:34,209 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 22:35:34,209 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 22:35:34,211 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 22:35:34,212 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 22:35:34,214 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 22:35:34,216 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 22:35:34,218 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 22:35:34,219 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 22:35:34,221 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 22:35:34,223 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-09 22:35:34,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-09 22:35:34,223 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-09 22:35:34,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-09 22:35:34,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-09 22:35:34,227 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-09 22:35:34,227 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-09 22:35:34,228 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-09 22:35:34,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-09 22:35:34,229 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-09 22:35:34,230 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-09 22:35:34,230 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-09 22:35:34,254 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 22:35:34,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 22:35:34,255 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 22:35:34,255 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 22:35:34,255 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 22:35:34,256 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 22:35:34,256 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 22:35:34,256 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 22:35:34,256 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 22:35:34,256 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 22:35:34,257 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 22:35:34,257 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 22:35:34,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 22:35:34,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 22:35:34,258 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 22:35:34,258 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 22:35:34,258 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 22:35:34,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 22:35:34,258 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 22:35:34,259 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 22:35:34,259 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 22:35:34,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 22:35:34,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 22:35:34,259 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 22:35:34,260 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 22:35:34,260 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 22:35:34,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 22:35:34,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 22:35:34,260 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 22:35:34,260 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 22:35:34,261 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 22:35:34,261 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 22:35:34,261 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:34,261 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 22:35:34,262 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 22:35:34,262 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 22:35:34,262 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 22:35:34,263 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 22:35:34,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 22:35:34,311 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 22:35:34,315 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 22:35:34,316 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 22:35:34,317 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 22:35:34,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,664 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4f7771685 [2018-04-09 22:35:34,847 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 22:35:34,847 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 22:35:34,847 INFO L168 CDTParser]: Scanning dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,858 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 22:35:34,858 INFO L215 ultiparseSymbolTable]: [2018-04-09 22:35:34,858 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 22:35:34,858 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_spinlock_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____clock_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__quad_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____clockid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__clockid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____uint8_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,859 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____blkcnt_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____key_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____loff_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__fsid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_int16_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_cond_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____u_int in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____useconds_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____syscall_slong_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__fd_mask in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__wchar_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__suseconds_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,860 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____gid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____quad_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____int64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_barrier_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____u_quad_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__daddr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__loff_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,861 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fd_mask in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__ushort in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_int8_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____pid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_condattr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____daddr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____uint16_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__int64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,862 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__ulong in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____int8_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__blkcnt_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____u_long in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fsblkcnt64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_short in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_char in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,863 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__gid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__off_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____caddr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_attr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____socklen_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__clock_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____mode_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__blksize_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__int16_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_long in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____intptr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fsid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__size_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_once_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____uint32_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____int16_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____sigset_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____ino_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__mode_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____int32_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__caddr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__div_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____suseconds_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__time_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____pthread_slist_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__key_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_mutex_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__fd_set in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__lldiv_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__uid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____rlim_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__idtype_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____u_short in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____dev_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____syscall_ulong_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____blksize_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__int8_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____id_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____ssize_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____off64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____time_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_int64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____u_char in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_quad_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____rlim64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fsfilcnt_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_mutexattr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__fsblkcnt_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____timer_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____qaddr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_int in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__register_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_barrierattr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__timer_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__u_int32_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__Colour in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__ssize_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____blkcnt64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_rwlockattr_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__ldiv_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____uint64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fsword_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__ino_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__int32_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____sig_atomic_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____nlink_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fsfilcnt64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____fsblkcnt_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____off_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_key_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__fsfilcnt_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____ino64_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__pthread_rwlock_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__nlink_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i____uid_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__uint in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__dev_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__sigset_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fdll_rb_sentinel_false_unreach_call_false_valid_memtrack_i__id_t in dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:34,889 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4f7771685 [2018-04-09 22:35:34,894 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 22:35:34,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 22:35:34,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 22:35:34,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 22:35:34,905 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 22:35:34,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:35:34" (1/1) ... [2018-04-09 22:35:34,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba6a550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:34, skipping insertion in model container [2018-04-09 22:35:34,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:35:34" (1/1) ... [2018-04-09 22:35:34,924 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:35:34,960 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:35:35,143 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:35:35,204 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:35:35,213 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-04-09 22:35:35,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35 WrapperNode [2018-04-09 22:35:35,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 22:35:35,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 22:35:35,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 22:35:35,265 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 22:35:35,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... [2018-04-09 22:35:35,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 22:35:35,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 22:35:35,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 22:35:35,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 22:35:35,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 22:35:35,456 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 22:35:35,457 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 22:35:35,457 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 22:35:35,457 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-09 22:35:35,457 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-09 22:35:35,457 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-09 22:35:35,457 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-09 22:35:35,457 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-09 22:35:35,458 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-09 22:35:35,458 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-09 22:35:35,458 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-09 22:35:35,458 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-09 22:35:35,458 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-09 22:35:35,458 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-09 22:35:35,459 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-09 22:35:35,459 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-09 22:35:35,459 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-09 22:35:35,459 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-09 22:35:35,459 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-09 22:35:35,459 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-09 22:35:35,460 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-09 22:35:35,461 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-09 22:35:35,462 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-09 22:35:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-09 22:35:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-04-09 22:35:35,465 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-09 22:35:35,466 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-09 22:35:35,467 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-09 22:35:35,468 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-09 22:35:35,469 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-09 22:35:35,470 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-09 22:35:35,471 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-09 22:35:35,472 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 22:35:35,472 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 22:35:35,472 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 22:35:35,472 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-09 22:35:36,111 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 22:35:36,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:35:36 BoogieIcfgContainer [2018-04-09 22:35:36,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 22:35:36,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 22:35:36,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 22:35:36,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 22:35:36,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 10:35:34" (1/3) ... [2018-04-09 22:35:36,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b09c6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:35:36, skipping insertion in model container [2018-04-09 22:35:36,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:35:35" (2/3) ... [2018-04-09 22:35:36,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b09c6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:35:36, skipping insertion in model container [2018-04-09 22:35:36,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:35:36" (3/3) ... [2018-04-09 22:35:36,119 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-04-09 22:35:36,129 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 22:35:36,138 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-04-09 22:35:36,188 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 22:35:36,189 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 22:35:36,189 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 22:35:36,189 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 22:35:36,189 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 22:35:36,189 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 22:35:36,189 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 22:35:36,189 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 22:35:36,189 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 22:35:36,190 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 22:35:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2018-04-09 22:35:36,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-04-09 22:35:36,212 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:36,213 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:36,213 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:36,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1087334569, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:36,234 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:36,271 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:36,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:36,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:36,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:36,322 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:35:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:36,339 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:36,384 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:36,384 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 22:35:36,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 22:35:36,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 22:35:36,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:35:36,404 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2018-04-09 22:35:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:36,778 INFO L93 Difference]: Finished difference Result 399 states and 460 transitions. [2018-04-09 22:35:36,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 22:35:36,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-04-09 22:35:36,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:36,789 INFO L225 Difference]: With dead ends: 399 [2018-04-09 22:35:36,790 INFO L226 Difference]: Without dead ends: 212 [2018-04-09 22:35:36,793 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 22:35:36,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-04-09 22:35:36,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2018-04-09 22:35:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-09 22:35:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 186 transitions. [2018-04-09 22:35:36,842 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 186 transitions. Word has length 9 [2018-04-09 22:35:36,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:36,842 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 186 transitions. [2018-04-09 22:35:36,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 22:35:36,843 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 186 transitions. [2018-04-09 22:35:36,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-04-09 22:35:36,843 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:36,843 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:36,843 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:36,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1087334568, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:36,851 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:36,864 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:36,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:36,873 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:36,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:36,878 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:35:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:36,894 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:36,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,016 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:37,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-09 22:35:37,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:35:37,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:35:37,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:35:37,019 INFO L87 Difference]: Start difference. First operand 181 states and 186 transitions. Second operand 6 states. [2018-04-09 22:35:37,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:37,278 INFO L93 Difference]: Finished difference Result 181 states and 186 transitions. [2018-04-09 22:35:37,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 22:35:37,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-04-09 22:35:37,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:37,280 INFO L225 Difference]: With dead ends: 181 [2018-04-09 22:35:37,280 INFO L226 Difference]: Without dead ends: 178 [2018-04-09 22:35:37,281 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:35:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-04-09 22:35:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-04-09 22:35:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-04-09 22:35:37,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 183 transitions. [2018-04-09 22:35:37,294 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 183 transitions. Word has length 9 [2018-04-09 22:35:37,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:37,294 INFO L459 AbstractCegarLoop]: Abstraction has 178 states and 183 transitions. [2018-04-09 22:35:37,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:35:37,294 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 183 transitions. [2018-04-09 22:35:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-09 22:35:37,295 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:37,295 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:37,295 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash 2110554359, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:37,304 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:37,318 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:37,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:37,335 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:37,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:37,338 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:35:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,343 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,368 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:37,368 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 22:35:37,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 22:35:37,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 22:35:37,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:35:37,369 INFO L87 Difference]: Start difference. First operand 178 states and 183 transitions. Second operand 4 states. [2018-04-09 22:35:37,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:37,538 INFO L93 Difference]: Finished difference Result 205 states and 215 transitions. [2018-04-09 22:35:37,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:35:37,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-09 22:35:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:37,540 INFO L225 Difference]: With dead ends: 205 [2018-04-09 22:35:37,540 INFO L226 Difference]: Without dead ends: 197 [2018-04-09 22:35:37,541 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 22:35:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-04-09 22:35:37,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 174. [2018-04-09 22:35:37,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-04-09 22:35:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 181 transitions. [2018-04-09 22:35:37,554 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 181 transitions. Word has length 14 [2018-04-09 22:35:37,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:37,554 INFO L459 AbstractCegarLoop]: Abstraction has 174 states and 181 transitions. [2018-04-09 22:35:37,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 22:35:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 181 transitions. [2018-04-09 22:35:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-09 22:35:37,555 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:37,555 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:37,555 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2110554360, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:37,564 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:37,583 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:37,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:37,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:37,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:37,593 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:35:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,622 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,684 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:37,684 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-09 22:35:37,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:35:37,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:35:37,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:35:37,685 INFO L87 Difference]: Start difference. First operand 174 states and 181 transitions. Second operand 6 states. [2018-04-09 22:35:37,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:37,861 INFO L93 Difference]: Finished difference Result 202 states and 208 transitions. [2018-04-09 22:35:37,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:35:37,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-04-09 22:35:37,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:37,862 INFO L225 Difference]: With dead ends: 202 [2018-04-09 22:35:37,862 INFO L226 Difference]: Without dead ends: 194 [2018-04-09 22:35:37,863 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:37,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-04-09 22:35:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 182. [2018-04-09 22:35:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-09 22:35:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 189 transitions. [2018-04-09 22:35:37,873 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 189 transitions. Word has length 14 [2018-04-09 22:35:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:37,873 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 189 transitions. [2018-04-09 22:35:37,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:35:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 189 transitions. [2018-04-09 22:35:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-09 22:35:37,874 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:37,874 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] [2018-04-09 22:35:37,874 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:37,875 INFO L82 PathProgramCache]: Analyzing trace with hash 184737093, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:37,885 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:37,901 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:37,913 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:37,914 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:37,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-09 22:35:37,915 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:37,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:37,921 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-09 22:35:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,934 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:37,982 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:37,982 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-09 22:35:37,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-09 22:35:37,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-09 22:35:37,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:35:37,983 INFO L87 Difference]: Start difference. First operand 182 states and 189 transitions. Second operand 7 states. [2018-04-09 22:35:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:38,191 INFO L93 Difference]: Finished difference Result 203 states and 211 transitions. [2018-04-09 22:35:38,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 22:35:38,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-04-09 22:35:38,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:38,192 INFO L225 Difference]: With dead ends: 203 [2018-04-09 22:35:38,192 INFO L226 Difference]: Without dead ends: 187 [2018-04-09 22:35:38,193 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-04-09 22:35:38,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-04-09 22:35:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 170. [2018-04-09 22:35:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-04-09 22:35:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2018-04-09 22:35:38,203 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 23 [2018-04-09 22:35:38,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:38,203 INFO L459 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2018-04-09 22:35:38,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-09 22:35:38,203 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2018-04-09 22:35:38,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-09 22:35:38,204 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:38,204 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] [2018-04-09 22:35:38,205 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:38,205 INFO L82 PathProgramCache]: Analyzing trace with hash 184737094, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:38,212 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:38,245 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:38,270 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:38,271 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:38,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-09 22:35:38,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-04-09 22:35:38,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:38,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:20 [2018-04-09 22:35:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:38,296 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:38,392 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:38,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2018-04-09 22:35:38,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 22:35:38,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 22:35:38,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:38,393 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand 8 states. [2018-04-09 22:35:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:38,767 INFO L93 Difference]: Finished difference Result 211 states and 221 transitions. [2018-04-09 22:35:38,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-09 22:35:38,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-04-09 22:35:38,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:38,769 INFO L225 Difference]: With dead ends: 211 [2018-04-09 22:35:38,769 INFO L226 Difference]: Without dead ends: 202 [2018-04-09 22:35:38,769 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-04-09 22:35:38,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-04-09 22:35:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 168. [2018-04-09 22:35:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-09 22:35:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 178 transitions. [2018-04-09 22:35:38,774 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 178 transitions. Word has length 23 [2018-04-09 22:35:38,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:38,775 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 178 transitions. [2018-04-09 22:35:38,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 22:35:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 178 transitions. [2018-04-09 22:35:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-09 22:35:38,775 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:38,775 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] [2018-04-09 22:35:38,775 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:38,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1438687657, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:38,782 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:38,800 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:38,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:38,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,808 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:35:38,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:38,823 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 8 treesize of output 7 [2018-04-09 22:35:38,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,829 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:38,838 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 8 treesize of output 7 [2018-04-09 22:35:38,838 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,839 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,843 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2018-04-09 22:35:38,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-09 22:35:38,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-04-09 22:35:38,854 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,857 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-09 22:35:38,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-09 22:35:38,865 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,867 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:38,870 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2018-04-09 22:35:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:38,876 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:38,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:38,924 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:38,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2018-04-09 22:35:38,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 22:35:38,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 22:35:38,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:38,925 INFO L87 Difference]: Start difference. First operand 168 states and 178 transitions. Second operand 8 states. [2018-04-09 22:35:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:39,191 INFO L93 Difference]: Finished difference Result 270 states and 289 transitions. [2018-04-09 22:35:39,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-09 22:35:39,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-04-09 22:35:39,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:39,193 INFO L225 Difference]: With dead ends: 270 [2018-04-09 22:35:39,193 INFO L226 Difference]: Without dead ends: 269 [2018-04-09 22:35:39,193 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-04-09 22:35:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-04-09 22:35:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 167. [2018-04-09 22:35:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-04-09 22:35:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 177 transitions. [2018-04-09 22:35:39,201 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 177 transitions. Word has length 25 [2018-04-09 22:35:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:39,202 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 177 transitions. [2018-04-09 22:35:39,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 22:35:39,202 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 177 transitions. [2018-04-09 22:35:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-09 22:35:39,202 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:39,202 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] [2018-04-09 22:35:39,203 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:39,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1438687656, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:39,209 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:39,232 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:39,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:39,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,240 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:35:39,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:39,250 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 8 treesize of output 7 [2018-04-09 22:35:39,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,252 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,256 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,256 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2018-04-09 22:35:39,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-09 22:35:39,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-04-09 22:35:39,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,268 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-04-09 22:35:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:39,273 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:39,299 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:39,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-09 22:35:39,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-09 22:35:39,300 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-09 22:35:39,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-09 22:35:39,300 INFO L87 Difference]: Start difference. First operand 167 states and 177 transitions. Second operand 5 states. [2018-04-09 22:35:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:39,501 INFO L93 Difference]: Finished difference Result 239 states and 256 transitions. [2018-04-09 22:35:39,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:35:39,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-04-09 22:35:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:39,503 INFO L225 Difference]: With dead ends: 239 [2018-04-09 22:35:39,503 INFO L226 Difference]: Without dead ends: 238 [2018-04-09 22:35:39,504 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:35:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-04-09 22:35:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 166. [2018-04-09 22:35:39,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-04-09 22:35:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 176 transitions. [2018-04-09 22:35:39,510 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 176 transitions. Word has length 25 [2018-04-09 22:35:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:39,510 INFO L459 AbstractCegarLoop]: Abstraction has 166 states and 176 transitions. [2018-04-09 22:35:39,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-09 22:35:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 176 transitions. [2018-04-09 22:35:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 22:35:39,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:39,511 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] [2018-04-09 22:35:39,511 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:39,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1792880426, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:39,525 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:39,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:39,572 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:39,631 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:39,632 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 22:35:39,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 22:35:39,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 22:35:39,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:35:39,632 INFO L87 Difference]: Start difference. First operand 166 states and 176 transitions. Second operand 4 states. [2018-04-09 22:35:39,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:39,798 INFO L93 Difference]: Finished difference Result 243 states and 259 transitions. [2018-04-09 22:35:39,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:35:39,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-04-09 22:35:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:39,800 INFO L225 Difference]: With dead ends: 243 [2018-04-09 22:35:39,801 INFO L226 Difference]: Without dead ends: 240 [2018-04-09 22:35:39,801 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 22:35:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-04-09 22:35:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 176. [2018-04-09 22:35:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-09 22:35:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-04-09 22:35:39,810 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 28 [2018-04-09 22:35:39,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:39,811 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-04-09 22:35:39,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 22:35:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-04-09 22:35:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-09 22:35:39,812 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:39,812 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] [2018-04-09 22:35:39,812 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:39,812 INFO L82 PathProgramCache]: Analyzing trace with hash 507467439, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:39,822 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:39,850 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:39,863 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:39,864 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:39,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-09 22:35:39,866 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,873 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2018-04-09 22:35:39,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:39,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-09 22:35:39,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,897 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2018-04-09 22:35:39,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-04-09 22:35:39,954 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 14 treesize of output 13 [2018-04-09 22:35:39,955 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,962 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:39,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:39,971 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:36 [2018-04-09 22:35:40,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2018-04-09 22:35:40,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-04-09 22:35:40,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-09 22:35:40,017 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:40,027 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:43, output treesize:15 [2018-04-09 22:35:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:40,070 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:40,158 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:40,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2018-04-09 22:35:40,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-09 22:35:40,158 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-09 22:35:40,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-09 22:35:40,159 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 14 states. [2018-04-09 22:35:40,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:40,791 INFO L93 Difference]: Finished difference Result 285 states and 302 transitions. [2018-04-09 22:35:40,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-09 22:35:40,791 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2018-04-09 22:35:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:40,793 INFO L225 Difference]: With dead ends: 285 [2018-04-09 22:35:40,793 INFO L226 Difference]: Without dead ends: 284 [2018-04-09 22:35:40,793 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2018-04-09 22:35:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-04-09 22:35:40,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 175. [2018-04-09 22:35:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-04-09 22:35:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 185 transitions. [2018-04-09 22:35:40,804 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 185 transitions. Word has length 30 [2018-04-09 22:35:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:40,804 INFO L459 AbstractCegarLoop]: Abstraction has 175 states and 185 transitions. [2018-04-09 22:35:40,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-09 22:35:40,805 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 185 transitions. [2018-04-09 22:35:40,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-09 22:35:40,806 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:40,806 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] [2018-04-09 22:35:40,806 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:40,806 INFO L82 PathProgramCache]: Analyzing trace with hash 507467440, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:40,819 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:40,839 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:40,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:40,849 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:40,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:40,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-09 22:35:40,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,860 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-09 22:35:40,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:40,886 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 8 treesize of output 7 [2018-04-09 22:35:40,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:40,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-09 22:35:40,898 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,903 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,909 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,909 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-04-09 22:35:40,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-09 22:35:40,965 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 14 treesize of output 13 [2018-04-09 22:35:40,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,971 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-04-09 22:35:40,985 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 14 treesize of output 13 [2018-04-09 22:35:40,985 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,990 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:40,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:40,997 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:51 [2018-04-09 22:35:41,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2018-04-09 22:35:41,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2018-04-09 22:35:41,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-09 22:35:41,036 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,040 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-04-09 22:35:41,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-09 22:35:41,053 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-09 22:35:41,059 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,061 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,066 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:65, output treesize:9 [2018-04-09 22:35:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:41,098 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:41,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 61 [2018-04-09 22:35:41,275 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 9 treesize of output 8 [2018-04-09 22:35:41,275 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-04-09 22:35:41,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 37 [2018-04-09 22:35:41,286 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,301 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-04-09 22:35:41,353 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 9 treesize of output 8 [2018-04-09 22:35:41,353 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-04-09 22:35:41,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-04-09 22:35:41,369 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,372 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-09 22:35:41,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-09 22:35:41,376 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,378 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,391 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-09 22:35:41,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-04-09 22:35:41,443 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 9 treesize of output 8 [2018-04-09 22:35:41,444 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-04-09 22:35:41,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-04-09 22:35:41,467 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,472 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-09 22:35:41,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-04-09 22:35:41,480 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,483 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:41,498 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-09 22:35:41,535 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-09 22:35:41,536 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 7 variables, input treesize:101, output treesize:33 [2018-04-09 22:35:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:41,607 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:41,607 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-09 22:35:41,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-09 22:35:41,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-09 22:35:41,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-04-09 22:35:41,608 INFO L87 Difference]: Start difference. First operand 175 states and 185 transitions. Second operand 18 states. [2018-04-09 22:35:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:42,551 INFO L93 Difference]: Finished difference Result 237 states and 249 transitions. [2018-04-09 22:35:42,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-09 22:35:42,578 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2018-04-09 22:35:42,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:42,579 INFO L225 Difference]: With dead ends: 237 [2018-04-09 22:35:42,579 INFO L226 Difference]: Without dead ends: 234 [2018-04-09 22:35:42,580 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=397, Invalid=1009, Unknown=0, NotChecked=0, Total=1406 [2018-04-09 22:35:42,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-04-09 22:35:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 172. [2018-04-09 22:35:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-04-09 22:35:42,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2018-04-09 22:35:42,590 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 30 [2018-04-09 22:35:42,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:42,590 INFO L459 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2018-04-09 22:35:42,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-09 22:35:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2018-04-09 22:35:42,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-09 22:35:42,592 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:42,592 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:42,592 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:42,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1619463529, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:42,603 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:42,622 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:42,644 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:42,671 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:42,671 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 22:35:42,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-09 22:35:42,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-09 22:35:42,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 22:35:42,671 INFO L87 Difference]: Start difference. First operand 172 states and 182 transitions. Second operand 3 states. [2018-04-09 22:35:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:42,767 INFO L93 Difference]: Finished difference Result 231 states and 244 transitions. [2018-04-09 22:35:42,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 22:35:42,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-04-09 22:35:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:42,769 INFO L225 Difference]: With dead ends: 231 [2018-04-09 22:35:42,769 INFO L226 Difference]: Without dead ends: 180 [2018-04-09 22:35:42,769 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 22:35:42,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-04-09 22:35:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2018-04-09 22:35:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-04-09 22:35:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 181 transitions. [2018-04-09 22:35:42,777 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 181 transitions. Word has length 37 [2018-04-09 22:35:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:42,777 INFO L459 AbstractCegarLoop]: Abstraction has 172 states and 181 transitions. [2018-04-09 22:35:42,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-09 22:35:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 181 transitions. [2018-04-09 22:35:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-09 22:35:42,778 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:42,778 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:42,778 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:42,779 INFO L82 PathProgramCache]: Analyzing trace with hash 206187389, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:42,787 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:42,811 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:42,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:42,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,842 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,842 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:35:42,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:42,869 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 8 treesize of output 7 [2018-04-09 22:35:42,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,887 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,891 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,892 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2018-04-09 22:35:42,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-09 22:35:42,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-04-09 22:35:42,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,944 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:42,945 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-04-09 22:35:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:42,970 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:43,000 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:43,001 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-09 22:35:43,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-09 22:35:43,001 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-09 22:35:43,001 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-09 22:35:43,002 INFO L87 Difference]: Start difference. First operand 172 states and 181 transitions. Second operand 5 states. [2018-04-09 22:35:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:43,218 INFO L93 Difference]: Finished difference Result 272 states and 287 transitions. [2018-04-09 22:35:43,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:35:43,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-04-09 22:35:43,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:43,220 INFO L225 Difference]: With dead ends: 272 [2018-04-09 22:35:43,220 INFO L226 Difference]: Without dead ends: 271 [2018-04-09 22:35:43,220 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:35:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-04-09 22:35:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 171. [2018-04-09 22:35:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-04-09 22:35:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 180 transitions. [2018-04-09 22:35:43,229 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 180 transitions. Word has length 38 [2018-04-09 22:35:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:43,230 INFO L459 AbstractCegarLoop]: Abstraction has 171 states and 180 transitions. [2018-04-09 22:35:43,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-09 22:35:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 180 transitions. [2018-04-09 22:35:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-09 22:35:43,231 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:43,231 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:43,231 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:43,231 INFO L82 PathProgramCache]: Analyzing trace with hash 206187390, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:43,242 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:43,263 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:43,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:43,267 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,273 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:35:43,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:43,281 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 8 treesize of output 7 [2018-04-09 22:35:43,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,283 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:43,290 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 8 treesize of output 7 [2018-04-09 22:35:43,290 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,292 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,295 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2018-04-09 22:35:43,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-09 22:35:43,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-04-09 22:35:43,303 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-09 22:35:43,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-09 22:35:43,312 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,313 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,315 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2018-04-09 22:35:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:43,321 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:43,367 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:43,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2018-04-09 22:35:43,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 22:35:43,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 22:35:43,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:43,368 INFO L87 Difference]: Start difference. First operand 171 states and 180 transitions. Second operand 8 states. [2018-04-09 22:35:43,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:43,612 INFO L93 Difference]: Finished difference Result 301 states and 318 transitions. [2018-04-09 22:35:43,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-09 22:35:43,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-04-09 22:35:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:43,613 INFO L225 Difference]: With dead ends: 301 [2018-04-09 22:35:43,614 INFO L226 Difference]: Without dead ends: 300 [2018-04-09 22:35:43,614 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-04-09 22:35:43,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-04-09 22:35:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 170. [2018-04-09 22:35:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-04-09 22:35:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2018-04-09 22:35:43,624 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 38 [2018-04-09 22:35:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:43,624 INFO L459 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2018-04-09 22:35:43,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 22:35:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2018-04-09 22:35:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-09 22:35:43,625 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:43,625 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:43,625 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:43,626 INFO L82 PathProgramCache]: Analyzing trace with hash -949696301, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:43,638 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:43,656 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:43,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-09 22:35:43,708 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,713 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-04-09 22:35:43,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:43,733 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 8 treesize of output 7 [2018-04-09 22:35:43,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,740 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-04-09 22:35:43,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-09 22:35:43,755 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:43,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-09 22:35:43,756 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,760 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,766 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,767 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2018-04-09 22:35:43,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2018-04-09 22:35:43,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2018-04-09 22:35:43,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,824 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:43,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:43,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:15 [2018-04-09 22:35:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:43,860 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:54,935 WARN L148 SmtUtils]: Spent 7087ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-09 22:35:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:54,969 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:35:54,969 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2018-04-09 22:35:54,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-09 22:35:54,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-09 22:35:54,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=335, Unknown=2, NotChecked=0, Total=420 [2018-04-09 22:35:54,970 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand 21 states. [2018-04-09 22:35:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:56,259 INFO L93 Difference]: Finished difference Result 270 states and 284 transitions. [2018-04-09 22:35:56,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-09 22:35:56,260 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 42 [2018-04-09 22:35:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:56,263 INFO L225 Difference]: With dead ends: 270 [2018-04-09 22:35:56,263 INFO L226 Difference]: Without dead ends: 269 [2018-04-09 22:35:56,264 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=752, Invalid=1696, Unknown=2, NotChecked=0, Total=2450 [2018-04-09 22:35:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-04-09 22:35:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 184. [2018-04-09 22:35:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-04-09 22:35:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 196 transitions. [2018-04-09 22:35:56,272 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 196 transitions. Word has length 42 [2018-04-09 22:35:56,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:56,273 INFO L459 AbstractCegarLoop]: Abstraction has 184 states and 196 transitions. [2018-04-09 22:35:56,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-09 22:35:56,273 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 196 transitions. [2018-04-09 22:35:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-09 22:35:56,273 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:56,274 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:56,274 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:56,274 INFO L82 PathProgramCache]: Analyzing trace with hash -949696300, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:56,282 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:56,301 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:56,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:56,309 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 8 treesize of output 7 [2018-04-09 22:35:56,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,311 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:56,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-09 22:35:56,319 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,321 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,324 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2018-04-09 22:35:56,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-09 22:35:56,345 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:56,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-09 22:35:56,346 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-09 22:35:56,365 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:56,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-09 22:35:56,367 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,375 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,381 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:41, output treesize:33 [2018-04-09 22:35:56,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-09 22:35:56,445 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:56,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-09 22:35:56,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-09 22:35:56,457 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:56,458 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-09 22:35:56,458 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,461 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,463 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,464 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2018-04-09 22:35:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:56,492 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:56,551 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:35:56,551 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2018-04-09 22:35:56,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 22:35:56,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 22:35:56,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:56,552 INFO L87 Difference]: Start difference. First operand 184 states and 196 transitions. Second operand 8 states. [2018-04-09 22:35:56,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:56,863 INFO L93 Difference]: Finished difference Result 322 states and 341 transitions. [2018-04-09 22:35:56,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-09 22:35:56,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2018-04-09 22:35:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:56,865 INFO L225 Difference]: With dead ends: 322 [2018-04-09 22:35:56,865 INFO L226 Difference]: Without dead ends: 244 [2018-04-09 22:35:56,866 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-04-09 22:35:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-04-09 22:35:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 183. [2018-04-09 22:35:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-04-09 22:35:56,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 193 transitions. [2018-04-09 22:35:56,876 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 193 transitions. Word has length 42 [2018-04-09 22:35:56,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:56,876 INFO L459 AbstractCegarLoop]: Abstraction has 183 states and 193 transitions. [2018-04-09 22:35:56,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 22:35:56,876 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 193 transitions. [2018-04-09 22:35:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-09 22:35:56,877 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:56,877 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:56,877 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:56,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1251750363, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:56,890 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:56,916 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:56,937 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:56,943 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:56,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-09 22:35:56,944 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,961 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,961 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2018-04-09 22:35:56,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:56,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-09 22:35:56,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,987 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:56,993 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2018-04-09 22:35:57,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-04-09 22:35:57,013 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 14 treesize of output 13 [2018-04-09 22:35:57,014 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:57,023 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:36 [2018-04-09 22:35:57,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2018-04-09 22:35:57,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-04-09 22:35:57,039 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-09 22:35:57,043 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,045 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,049 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:57,049 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:43, output treesize:15 [2018-04-09 22:35:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:57,069 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:57,139 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:57,139 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2018-04-09 22:35:57,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 22:35:57,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 22:35:57,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-04-09 22:35:57,140 INFO L87 Difference]: Start difference. First operand 183 states and 193 transitions. Second operand 13 states. [2018-04-09 22:35:57,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:57,677 INFO L93 Difference]: Finished difference Result 311 states and 328 transitions. [2018-04-09 22:35:57,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-09 22:35:57,677 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2018-04-09 22:35:57,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:57,679 INFO L225 Difference]: With dead ends: 311 [2018-04-09 22:35:57,679 INFO L226 Difference]: Without dead ends: 310 [2018-04-09 22:35:57,680 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2018-04-09 22:35:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-04-09 22:35:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 182. [2018-04-09 22:35:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-09 22:35:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2018-04-09 22:35:57,690 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 43 [2018-04-09 22:35:57,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:57,690 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 192 transitions. [2018-04-09 22:35:57,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 22:35:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 192 transitions. [2018-04-09 22:35:57,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-09 22:35:57,691 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:57,691 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:57,692 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:57,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1251750364, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:57,699 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:57,725 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:57,788 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:57,791 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:57,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-09 22:35:57,792 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:35:57,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-09 22:35:57,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:57,899 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 8 treesize of output 7 [2018-04-09 22:35:57,900 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,906 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-09 22:35:57,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-09 22:35:57,952 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,961 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,996 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:57,996 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-04-09 22:35:58,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-09 22:35:58,129 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 14 treesize of output 13 [2018-04-09 22:35:58,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-04-09 22:35:58,164 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 14 treesize of output 13 [2018-04-09 22:35:58,165 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,170 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 22:35:58,178 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:51 [2018-04-09 22:35:58,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2018-04-09 22:35:58,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-09 22:35:58,206 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2018-04-09 22:35:58,239 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-04-09 22:35:58,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-09 22:35:58,307 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-09 22:35:58,312 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,313 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,329 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:65, output treesize:9 [2018-04-09 22:35:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:58,347 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:58,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 61 [2018-04-09 22:35:58,508 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 9 treesize of output 8 [2018-04-09 22:35:58,508 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-04-09 22:35:58,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 37 [2018-04-09 22:35:58,519 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,522 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,524 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-04-09 22:35:58,547 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 9 treesize of output 8 [2018-04-09 22:35:58,547 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-04-09 22:35:58,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-04-09 22:35:58,563 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,566 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-09 22:35:58,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-09 22:35:58,576 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,581 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,619 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-09 22:35:58,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-04-09 22:35:58,676 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 9 treesize of output 8 [2018-04-09 22:35:58,676 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-04-09 22:35:58,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-04-09 22:35:58,700 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,714 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-09 22:35:58,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-04-09 22:35:58,719 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,727 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:58,743 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-09 22:35:58,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-09 22:35:58,815 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 7 variables, input treesize:101, output treesize:33 [2018-04-09 22:35:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:58,959 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:58,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2018-04-09 22:35:58,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 22:35:58,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 22:35:58,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-04-09 22:35:58,960 INFO L87 Difference]: Start difference. First operand 182 states and 192 transitions. Second operand 16 states. [2018-04-09 22:35:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:59,464 INFO L93 Difference]: Finished difference Result 228 states and 240 transitions. [2018-04-09 22:35:59,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-09 22:35:59,464 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-09 22:35:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:59,465 INFO L225 Difference]: With dead ends: 228 [2018-04-09 22:35:59,465 INFO L226 Difference]: Without dead ends: 226 [2018-04-09 22:35:59,466 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2018-04-09 22:35:59,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-04-09 22:35:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 180. [2018-04-09 22:35:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-09 22:35:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 190 transitions. [2018-04-09 22:35:59,471 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 190 transitions. Word has length 43 [2018-04-09 22:35:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:59,471 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 190 transitions. [2018-04-09 22:35:59,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 22:35:59,471 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 190 transitions. [2018-04-09 22:35:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-09 22:35:59,472 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:59,472 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:59,472 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:59,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1142927904, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:59,478 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:59,494 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:59,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-09 22:35:59,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-09 22:35:59,506 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,507 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-04-09 22:35:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:59,514 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:59,527 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-09 22:35:59,527 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,528 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,528 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:1 [2018-04-09 22:35:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:35:59,551 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:59,551 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2018-04-09 22:35:59,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:35:59,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:35:59,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:35:59,552 INFO L87 Difference]: Start difference. First operand 180 states and 190 transitions. Second operand 6 states. [2018-04-09 22:35:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:59,642 INFO L93 Difference]: Finished difference Result 266 states and 281 transitions. [2018-04-09 22:35:59,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 22:35:59,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-04-09 22:35:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:59,643 INFO L225 Difference]: With dead ends: 266 [2018-04-09 22:35:59,643 INFO L226 Difference]: Without dead ends: 187 [2018-04-09 22:35:59,644 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-04-09 22:35:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 178. [2018-04-09 22:35:59,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-04-09 22:35:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 186 transitions. [2018-04-09 22:35:59,650 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 186 transitions. Word has length 44 [2018-04-09 22:35:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:59,651 INFO L459 AbstractCegarLoop]: Abstraction has 178 states and 186 transitions. [2018-04-09 22:35:59,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:35:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 186 transitions. [2018-04-09 22:35:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-09 22:35:59,651 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:59,651 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:59,651 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:59,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1452488855, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:59,660 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:59,679 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:59,684 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:59,685 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:35:59,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-09 22:35:59,685 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,687 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-04-09 22:35:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 22:35:59,694 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 22:35:59,726 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:59,726 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2018-04-09 22:35:59,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:35:59,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:35:59,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:35:59,727 INFO L87 Difference]: Start difference. First operand 178 states and 186 transitions. Second operand 6 states. [2018-04-09 22:35:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:35:59,861 INFO L93 Difference]: Finished difference Result 222 states and 230 transitions. [2018-04-09 22:35:59,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 22:35:59,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-04-09 22:35:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:35:59,863 INFO L225 Difference]: With dead ends: 222 [2018-04-09 22:35:59,863 INFO L226 Difference]: Without dead ends: 219 [2018-04-09 22:35:59,863 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-09 22:35:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-04-09 22:35:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 178. [2018-04-09 22:35:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-04-09 22:35:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 185 transitions. [2018-04-09 22:35:59,871 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 185 transitions. Word has length 45 [2018-04-09 22:35:59,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:35:59,871 INFO L459 AbstractCegarLoop]: Abstraction has 178 states and 185 transitions. [2018-04-09 22:35:59,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:35:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 185 transitions. [2018-04-09 22:35:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-09 22:35:59,872 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:35:59,872 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:35:59,872 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:35:59,872 INFO L82 PathProgramCache]: Analyzing trace with hash -235793356, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:35:59,879 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:35:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:35:59,900 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:35:59,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-09 22:35:59,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-09 22:35:59,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,906 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-04-09 22:35:59,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-09 22:35:59,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-04-09 22:35:59,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,913 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:35:59,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-04-09 22:35:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 22:35:59,919 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:35:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 22:35:59,980 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:35:59,980 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-09 22:35:59,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:35:59,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:35:59,980 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:35:59,980 INFO L87 Difference]: Start difference. First operand 178 states and 185 transitions. Second operand 6 states. [2018-04-09 22:36:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:36:00,062 INFO L93 Difference]: Finished difference Result 308 states and 321 transitions. [2018-04-09 22:36:00,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:36:00,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-04-09 22:36:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:36:00,063 INFO L225 Difference]: With dead ends: 308 [2018-04-09 22:36:00,063 INFO L226 Difference]: Without dead ends: 266 [2018-04-09 22:36:00,064 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:36:00,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-04-09 22:36:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 249. [2018-04-09 22:36:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-04-09 22:36:00,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2018-04-09 22:36:00,075 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 53 [2018-04-09 22:36:00,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:36:00,075 INFO L459 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2018-04-09 22:36:00,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:36:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2018-04-09 22:36:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-09 22:36:00,076 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:36:00,076 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-09 22:36:00,076 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:36:00,076 INFO L82 PathProgramCache]: Analyzing trace with hash 247092595, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:36:00,084 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:36:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:36:00,106 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:36:00,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-09 22:36:00,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-09 22:36:00,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-09 22:36:00,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-09 22:36:00,129 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,131 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,136 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:27, output treesize:19 [2018-04-09 22:36:00,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-09 22:36:00,184 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:36:00,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-09 22:36:00,185 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,188 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-09 22:36:00,195 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:36:00,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-09 22:36:00,196 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,198 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:36:00,201 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2018-04-09 22:36:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:36:00,229 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:36:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:36:00,342 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:36:00,342 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2018-04-09 22:36:00,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-09 22:36:00,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-09 22:36:00,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-04-09 22:36:00,343 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 14 states. [2018-04-09 22:36:00,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:36:00,948 INFO L93 Difference]: Finished difference Result 363 states and 386 transitions. [2018-04-09 22:36:00,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-09 22:36:00,949 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2018-04-09 22:36:00,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:36:00,950 INFO L225 Difference]: With dead ends: 363 [2018-04-09 22:36:00,950 INFO L226 Difference]: Without dead ends: 326 [2018-04-09 22:36:00,951 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2018-04-09 22:36:00,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2018-04-09 22:36:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 275. [2018-04-09 22:36:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-04-09 22:36:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 296 transitions. [2018-04-09 22:36:00,959 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 296 transitions. Word has length 56 [2018-04-09 22:36:00,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:36:00,959 INFO L459 AbstractCegarLoop]: Abstraction has 275 states and 296 transitions. [2018-04-09 22:36:00,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-09 22:36:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 296 transitions. [2018-04-09 22:36:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-09 22:36:00,959 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:36:00,960 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:36:00,960 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr66EnsuresViolationMEMORY_LEAK, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr56AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr63RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr64AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr57AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr65AssertViolationMEMORY_FREE, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-09 22:36:00,960 INFO L82 PathProgramCache]: Analyzing trace with hash -930064368, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:36:00,965 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:36:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-09 22:36:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-09 22:36:01,057 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-09 22:36:01,089 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-04-09 22:36:01,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 10:36:01 BoogieIcfgContainer [2018-04-09 22:36:01,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 22:36:01,115 INFO L168 Benchmark]: Toolchain (without parser) took 26220.64 ms. Allocated memory was 302.5 MB in the beginning and 634.9 MB in the end (delta: 332.4 MB). Free memory was 238.0 MB in the beginning and 317.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 252.4 MB. Max. memory is 5.3 GB. [2018-04-09 22:36:01,117 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.5 MB. Free memory is still 264.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 22:36:01,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.93 ms. Allocated memory is still 302.5 MB. Free memory was 238.0 MB in the beginning and 210.1 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 5.3 GB. [2018-04-09 22:36:01,117 INFO L168 Benchmark]: Boogie Preprocessor took 68.43 ms. Allocated memory is still 302.5 MB. Free memory was 210.1 MB in the beginning and 207.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-04-09 22:36:01,118 INFO L168 Benchmark]: RCFGBuilder took 777.98 ms. Allocated memory was 302.5 MB in the beginning and 462.9 MB in the end (delta: 160.4 MB). Free memory was 207.1 MB in the beginning and 375.7 MB in the end (delta: -168.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. [2018-04-09 22:36:01,118 INFO L168 Benchmark]: TraceAbstraction took 25001.99 ms. Allocated memory was 462.9 MB in the beginning and 634.9 MB in the end (delta: 172.0 MB). Free memory was 374.3 MB in the beginning and 317.9 MB in the end (delta: 56.3 MB). Peak memory consumption was 228.3 MB. Max. memory is 5.3 GB. [2018-04-09 22:36:01,120 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.5 MB. Free memory is still 264.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 366.93 ms. Allocated memory is still 302.5 MB. Free memory was 238.0 MB in the beginning and 210.1 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 68.43 ms. Allocated memory is still 302.5 MB. Free memory was 210.1 MB in the beginning and 207.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 777.98 ms. Allocated memory was 302.5 MB in the beginning and 462.9 MB in the end (delta: 160.4 MB). Free memory was 207.1 MB in the beginning and 375.7 MB in the end (delta: -168.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 25001.99 ms. Allocated memory was 462.9 MB in the beginning and 634.9 MB in the end (delta: 172.0 MB). Free memory was 374.3 MB in the beginning and 317.9 MB in the end (delta: 56.3 MB). Peak memory consumption was 228.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 985]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 985. Possible FailurePath: [L987] EXPR, FCALL malloc(sizeof(struct TSLL)) VAL [malloc(sizeof(struct TSLL))={7:0}] [L987] struct TSLL* null = malloc(sizeof(struct TSLL)); VAL [malloc(sizeof(struct TSLL))={7:0}, null={7:0}] [L988] FCALL null->next = ((void*)0) VAL [malloc(sizeof(struct TSLL))={7:0}, null={7:0}] [L989] FCALL null->prev = ((void*)0) VAL [malloc(sizeof(struct TSLL))={7:0}, null={7:0}] [L990] FCALL null->colour = BLACK VAL [malloc(sizeof(struct TSLL))={7:0}, null={7:0}] [L992] EXPR, FCALL malloc(sizeof(struct TSLL)) VAL [malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); VAL [list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L993] FCALL list->next = null VAL [list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L994] FCALL list->prev = null VAL [list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L995] FCALL list->colour = BLACK VAL [list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L997] struct TSLL* end = list; VAL [end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1000] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1026] end = null VAL [end={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1027] end = list VAL [end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1030] COND FALSE !(!(null != end)) VAL [end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1030] COND FALSE !(0) VAL [end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1031] EXPR, FCALL end->colour VAL [end={9:0}, end->colour=1, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1031] COND FALSE !(!(BLACK == end->colour)) VAL [end={9:0}, end->colour=1, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1031] COND FALSE !(0) VAL [end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1032] COND TRUE null != end VAL [end={9:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1034] EXPR, FCALL end->colour VAL [end={9:0}, end->colour=1, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1034] COND FALSE !(RED == end->colour) VAL [end={9:0}, end->colour=1, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1041] EXPR, FCALL end->next VAL [end={9:0}, end->next={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1041] end = end->next VAL [end={7:0}, end->next={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1032] COND FALSE !(null != end) VAL [end={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1045] COND TRUE null != list VAL [end={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1047] EXPR, FCALL list->colour VAL [end={7:0}, list={9:0}, list->colour=1, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1047] COND FALSE !(RED == list->colour) VAL [end={7:0}, list={9:0}, list->colour=1, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1056] EXPR, FCALL list->next VAL [end={7:0}, list={9:0}, list->next={7:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1056] end = list->next VAL [end={7:0}, list={9:0}, list->next={7:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1057] free(list) VAL [end={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1057] free(list) VAL [end={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1057] FCALL free(list) VAL [end={7:0}, list={9:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1058] list = end VAL [end={7:0}, list={7:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1045] COND FALSE !(null != list) VAL [end={7:0}, list={7:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] [L1062] return 0; VAL [\result=0, end={7:0}, list={7:0}, malloc(sizeof(struct TSLL))={7:0}, malloc(sizeof(struct TSLL))={9:0}, null={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 198 locations, 67 error locations. UNSAFE Result, 24.9s OverallTime, 23 OverallIterations, 2 TraceHistogramMax, 7.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2948 SDtfs, 6693 SDslu, 7827 SDs, 0 SdLazy, 6596 SolverSat, 466 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1532 GetRequests, 1254 SyntacticMatches, 10 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=22, 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: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 1202 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 768 NumberOfCodeBlocks, 768 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1378 ConstructedInterpolants, 46 QuantifiedInterpolants, 355722 SizeOfPredicates, 175 NumberOfNonLiveVariables, 2878 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 44 InterpolantComputations, 38 PerfectInterpolantSequences, 12/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-09_22-36-01-128.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-09_22-36-01-128.csv Received shutdown request...