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/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 12:59:29,563 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 12:59:29,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 12:59:29,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 12:59:29,579 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 12:59:29,579 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 12:59:29,580 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 12:59:29,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 12:59:29,584 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 12:59:29,585 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 12:59:29,586 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 12:59:29,586 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 12:59:29,587 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 12:59:29,588 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 12:59:29,589 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 12:59:29,591 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 12:59:29,593 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 12:59:29,595 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 12:59:29,596 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 12:59:29,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 12:59:29,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 12:59:29,600 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 12:59:29,600 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 12:59:29,601 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 12:59:29,602 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 12:59:29,603 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 12:59:29,604 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 12:59:29,604 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 12:59:29,605 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 12:59:29,605 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 12:59:29,606 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 12:59:29,606 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 12:59:29,629 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 12:59:29,630 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 12:59:29,630 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 12:59:29,630 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 12:59:29,631 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 12:59:29,631 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 12:59:29,631 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 12:59:29,631 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 12:59:29,631 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 12:59:29,632 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 12:59:29,632 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 12:59:29,632 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 12:59:29,632 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 12:59:29,632 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 12:59:29,632 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 12:59:29,633 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 12:59:29,633 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 12:59:29,633 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 12:59:29,633 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 12:59:29,633 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 12:59:29,633 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 12:59:29,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 12:59:29,634 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 12:59:29,634 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 12:59:29,634 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 12:59:29,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:59:29,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 12:59:29,635 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 12:59:29,635 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 12:59:29,635 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 12:59:29,635 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 12:59:29,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:29,635 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 12:59:29,636 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 12:59:29,636 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 12:59:29,636 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 12:59:29,636 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 12:59:29,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 12:59:29,677 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 12:59:29,680 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 12:59:29,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 12:59:29,682 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 12:59:29,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,000 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG876826a80 [2018-03-28 12:59:30,184 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 12:59:30,184 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 12:59:30,185 INFO L171 CDTParser]: Scanning list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,195 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 12:59:30,196 INFO L215 ultiparseSymbolTable]: [2018-03-28 12:59:30,196 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 12:59:30,196 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__exit ('exit') in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,196 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,196 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 12:59:30,196 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__fd_mask in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,196 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____loff_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____WAIT_STATUS in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____sigset_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____ino_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____pid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__int64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__suseconds_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____ino64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,197 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____quad_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_long in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_barrier_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____off_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____uint8_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____fsid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____u_quad_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____key_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__ushort in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_condattr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_int8_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__loff_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_rwlockattr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____uint16_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,198 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__clock_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____daddr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____clock_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____gid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__clockid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__fsid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__daddr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____fd_mask in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_once_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____fsblkcnt64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_attr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____pthread_list_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____u_char in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____caddr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_short in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____off64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__ulong in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__gid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____uint32_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__lldiv_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__wchar_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____socklen_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__uid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__int16_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__List in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____mode_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__blksize_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_char in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_spinlock_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__div_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__blkcnt_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____u_long in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__quad_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____clockid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____int16_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__off_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_int16_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____intptr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_cond_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__size_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____fsfilcnt_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__key_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_mutex_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_int in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____rlim_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____timer_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__caddr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____u_short in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_mutexattr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__mode_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__int8_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__fsfilcnt_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____time_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____suseconds_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____blkcnt64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_int64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__fd_set in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__fsblkcnt_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__int32_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____ssize_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____nlink_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____qaddr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____rlim64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____int8_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____int32_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____dev_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____blksize_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__timer_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____id_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,203 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_int32_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____uint64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____sig_atomic_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_barrierattr_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__register_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__sigset_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____int64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____swblk_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____uid_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__nlink_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__u_quad_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__uint in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__ssize_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____useconds_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,204 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__id_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____fsfilcnt64_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__ldiv_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____u_int in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__ino_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__dev_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_key_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____fsblkcnt_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__time_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,205 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__pthread_rwlock_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,206 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i____blkcnt_t in list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:30,226 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG876826a80 [2018-03-28 12:59:30,230 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 12:59:30,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 12:59:30,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 12:59:30,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 12:59:30,239 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 12:59:30,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19225525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30, skipping insertion in model container [2018-03-28 12:59:30,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,254 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:59:30,286 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:59:30,464 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:59:30,513 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:59:30,520 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 113 non ball SCCs. Number of states in SCCs 113. [2018-03-28 12:59:30,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30 WrapperNode [2018-03-28 12:59:30,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 12:59:30,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 12:59:30,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 12:59:30,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 12:59:30,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... [2018-03-28 12:59:30,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 12:59:30,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 12:59:30,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 12:59:30,635 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 12:59:30,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:59:30,754 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 12:59:30,754 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 12:59:30,754 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__exit [2018-03-28 12:59:30,754 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 12:59:30,754 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-03-28 12:59:30,754 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-28 12:59:30,755 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-28 12:59:30,756 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-28 12:59:30,757 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-28 12:59:30,758 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-28 12:59:30,759 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flist_ext_false_unreach_call_false_valid_deref_i__exit [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-28 12:59:30,760 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-28 12:59:30,761 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-28 12:59:30,762 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-28 12:59:30,763 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 12:59:30,764 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-03-28 12:59:30,765 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-03-28 12:59:30,765 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 12:59:30,765 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 12:59:30,765 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 12:59:30,765 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 12:59:30,765 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 12:59:31,221 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 12:59:31,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:59:31 BoogieIcfgContainer [2018-03-28 12:59:31,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 12:59:31,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 12:59:31,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 12:59:31,226 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 12:59:31,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:59:30" (1/3) ... [2018-03-28 12:59:31,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612ecfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:59:31, skipping insertion in model container [2018-03-28 12:59:31,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:59:30" (2/3) ... [2018-03-28 12:59:31,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612ecfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:59:31, skipping insertion in model container [2018-03-28 12:59:31,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:59:31" (3/3) ... [2018-03-28 12:59:31,228 INFO L107 eAbstractionObserver]: Analyzing ICFG list-ext_false-unreach-call_false-valid-deref.i [2018-03-28 12:59:31,235 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 12:59:31,242 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-03-28 12:59:31,281 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 12:59:31,282 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 12:59:31,282 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 12:59:31,282 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 12:59:31,282 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 12:59:31,282 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 12:59:31,282 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 12:59:31,282 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 12:59:31,282 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 12:59:31,283 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 12:59:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-03-28 12:59:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-03-28 12:59:31,304 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:31,305 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:31,305 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:31,310 INFO L82 PathProgramCache]: Analyzing trace with hash 432712272, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:31,321 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:31,356 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:31,371 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:31,405 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:31,405 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 12:59:31,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-28 12:59:31,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-28 12:59:31,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 12:59:31,419 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-03-28 12:59:31,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:31,443 INFO L93 Difference]: Finished difference Result 248 states and 271 transitions. [2018-03-28 12:59:31,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-28 12:59:31,444 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-03-28 12:59:31,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:31,451 INFO L225 Difference]: With dead ends: 248 [2018-03-28 12:59:31,452 INFO L226 Difference]: Without dead ends: 135 [2018-03-28 12:59:31,456 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 12:59:31,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-03-28 12:59:31,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-03-28 12:59:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-03-28 12:59:31,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 141 transitions. [2018-03-28 12:59:31,488 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 141 transitions. Word has length 16 [2018-03-28 12:59:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:31,489 INFO L459 AbstractCegarLoop]: Abstraction has 135 states and 141 transitions. [2018-03-28 12:59:31,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-28 12:59:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2018-03-28 12:59:31,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-03-28 12:59:31,490 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:31,490 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] [2018-03-28 12:59:31,490 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:31,490 INFO L82 PathProgramCache]: Analyzing trace with hash -595982304, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:31,497 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:31,520 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:31,536 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:31,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:31,579 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:31,579 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:59:31,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-28 12:59:31,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-28 12:59:31,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:59:31,582 INFO L87 Difference]: Start difference. First operand 135 states and 141 transitions. Second operand 3 states. [2018-03-28 12:59:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:31,627 INFO L93 Difference]: Finished difference Result 258 states and 271 transitions. [2018-03-28 12:59:31,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 12:59:31,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-03-28 12:59:31,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:31,629 INFO L225 Difference]: With dead ends: 258 [2018-03-28 12:59:31,630 INFO L226 Difference]: Without dead ends: 136 [2018-03-28 12:59:31,631 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 12:59:31,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-03-28 12:59:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-03-28 12:59:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-03-28 12:59:31,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-03-28 12:59:31,644 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 23 [2018-03-28 12:59:31,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:31,644 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-03-28 12:59:31,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-28 12:59:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-03-28 12:59:31,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-28 12:59:31,646 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:31,646 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] [2018-03-28 12:59:31,646 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1845378205, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:31,656 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:31,678 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:31,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:31,712 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:31,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:31,722 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:59:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:31,757 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:31,789 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:31,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-28 12:59:31,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:59:31,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:59:31,790 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:59:31,790 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 5 states. [2018-03-28 12:59:32,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:32,153 INFO L93 Difference]: Finished difference Result 199 states and 213 transitions. [2018-03-28 12:59:32,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:59:32,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-03-28 12:59:32,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:32,155 INFO L225 Difference]: With dead ends: 199 [2018-03-28 12:59:32,156 INFO L226 Difference]: Without dead ends: 183 [2018-03-28 12:59:32,156 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 [2018-03-28 12:59:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-03-28 12:59:32,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 162. [2018-03-28 12:59:32,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-03-28 12:59:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 178 transitions. [2018-03-28 12:59:32,169 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 178 transitions. Word has length 25 [2018-03-28 12:59:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:32,170 INFO L459 AbstractCegarLoop]: Abstraction has 162 states and 178 transitions. [2018-03-28 12:59:32,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:59:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 178 transitions. [2018-03-28 12:59:32,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-28 12:59:32,171 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:32,171 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] [2018-03-28 12:59:32,171 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:32,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1845378204, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:32,179 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:32,194 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:32,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:32,209 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:32,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:32,285 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:59:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:32,339 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:32,468 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:32,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2018-03-28 12:59:32,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-28 12:59:32,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-28 12:59:32,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:59:32,470 INFO L87 Difference]: Start difference. First operand 162 states and 178 transitions. Second operand 8 states. [2018-03-28 12:59:32,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:32,736 INFO L93 Difference]: Finished difference Result 230 states and 244 transitions. [2018-03-28 12:59:32,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:59:32,736 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-03-28 12:59:32,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:32,738 INFO L225 Difference]: With dead ends: 230 [2018-03-28 12:59:32,738 INFO L226 Difference]: Without dead ends: 214 [2018-03-28 12:59:32,739 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-03-28 12:59:32,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-03-28 12:59:32,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 194. [2018-03-28 12:59:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-03-28 12:59:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 207 transitions. [2018-03-28 12:59:32,755 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 207 transitions. Word has length 25 [2018-03-28 12:59:32,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:32,755 INFO L459 AbstractCegarLoop]: Abstraction has 194 states and 207 transitions. [2018-03-28 12:59:32,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-28 12:59:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 207 transitions. [2018-03-28 12:59:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-28 12:59:32,757 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:32,757 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] [2018-03-28 12:59:32,758 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:32,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1369408493, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:32,765 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:32,783 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:32,795 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:32,840 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:32,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-28 12:59:32,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:59:32,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:59:32,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:59:32,841 INFO L87 Difference]: Start difference. First operand 194 states and 207 transitions. Second operand 5 states. [2018-03-28 12:59:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:32,916 INFO L93 Difference]: Finished difference Result 411 states and 437 transitions. [2018-03-28 12:59:32,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:59:32,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-03-28 12:59:32,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:32,919 INFO L225 Difference]: With dead ends: 411 [2018-03-28 12:59:32,919 INFO L226 Difference]: Without dead ends: 273 [2018-03-28 12:59:32,920 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:59:32,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-03-28 12:59:32,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 193. [2018-03-28 12:59:32,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-03-28 12:59:32,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 205 transitions. [2018-03-28 12:59:32,933 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 205 transitions. Word has length 41 [2018-03-28 12:59:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:32,933 INFO L459 AbstractCegarLoop]: Abstraction has 193 states and 205 transitions. [2018-03-28 12:59:32,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:59:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 205 transitions. [2018-03-28 12:59:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-03-28 12:59:32,935 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:32,935 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] [2018-03-28 12:59:32,935 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:32,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1671031696, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:32,950 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:32,976 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:32,988 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:33,036 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:33,036 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-28 12:59:33,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:59:33,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:59:33,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:59:33,037 INFO L87 Difference]: Start difference. First operand 193 states and 205 transitions. Second operand 5 states. [2018-03-28 12:59:33,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:33,065 INFO L93 Difference]: Finished difference Result 382 states and 406 transitions. [2018-03-28 12:59:33,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:59:33,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-03-28 12:59:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:33,068 INFO L225 Difference]: With dead ends: 382 [2018-03-28 12:59:33,068 INFO L226 Difference]: Without dead ends: 252 [2018-03-28 12:59:33,068 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:59:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-03-28 12:59:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 196. [2018-03-28 12:59:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-03-28 12:59:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 207 transitions. [2018-03-28 12:59:33,079 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 207 transitions. Word has length 43 [2018-03-28 12:59:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:33,079 INFO L459 AbstractCegarLoop]: Abstraction has 196 states and 207 transitions. [2018-03-28 12:59:33,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:59:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 207 transitions. [2018-03-28 12:59:33,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-03-28 12:59:33,081 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:33,081 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:33,081 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:33,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1758789338, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:33,088 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:33,111 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:33,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:33,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,128 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:59:33,137 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 [2018-03-28 12:59:33,139 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 [2018-03-28 12:59:33,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,140 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,143 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-03-28 12:59:33,149 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 21 treesize of output 17 [2018-03-28 12:59:33,150 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 17 treesize of output 5 [2018-03-28 12:59:33,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,151 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,153 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-03-28 12:59:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:33,181 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:33,209 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:33,210 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-28 12:59:33,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:59:33,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:59:33,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:59:33,210 INFO L87 Difference]: Start difference. First operand 196 states and 207 transitions. Second operand 7 states. [2018-03-28 12:59:33,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:33,556 INFO L93 Difference]: Finished difference Result 374 states and 398 transitions. [2018-03-28 12:59:33,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-28 12:59:33,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-03-28 12:59:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:33,559 INFO L225 Difference]: With dead ends: 374 [2018-03-28 12:59:33,559 INFO L226 Difference]: Without dead ends: 371 [2018-03-28 12:59:33,559 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-03-28 12:59:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-03-28 12:59:33,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 207. [2018-03-28 12:59:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-03-28 12:59:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 221 transitions. [2018-03-28 12:59:33,567 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 221 transitions. Word has length 44 [2018-03-28 12:59:33,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:33,567 INFO L459 AbstractCegarLoop]: Abstraction has 207 states and 221 transitions. [2018-03-28 12:59:33,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:59:33,567 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 221 transitions. [2018-03-28 12:59:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-03-28 12:59:33,569 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:33,569 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:33,569 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:33,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1758789337, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:33,576 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:33,596 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:33,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:33,605 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,608 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:59:33,625 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 [2018-03-28 12:59:33,627 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 [2018-03-28 12:59:33,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,635 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 [2018-03-28 12:59:33,636 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 [2018-03-28 12:59:33,636 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,638 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,642 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:21 [2018-03-28 12:59:33,650 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 21 treesize of output 17 [2018-03-28 12:59:33,652 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 17 treesize of output 5 [2018-03-28 12:59:33,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,653 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,658 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 [2018-03-28 12:59:33,660 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 [2018-03-28 12:59:33,660 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,662 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:33,664 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:9 [2018-03-28 12:59:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:33,680 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:33,767 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:33,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2018-03-28 12:59:33,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:59:33,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:59:33,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-03-28 12:59:33,768 INFO L87 Difference]: Start difference. First operand 207 states and 221 transitions. Second operand 12 states. [2018-03-28 12:59:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:34,251 INFO L93 Difference]: Finished difference Result 400 states and 423 transitions. [2018-03-28 12:59:34,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:59:34,252 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-03-28 12:59:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:34,254 INFO L225 Difference]: With dead ends: 400 [2018-03-28 12:59:34,254 INFO L226 Difference]: Without dead ends: 393 [2018-03-28 12:59:34,255 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2018-03-28 12:59:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-03-28 12:59:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 173. [2018-03-28 12:59:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-03-28 12:59:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 183 transitions. [2018-03-28 12:59:34,266 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 183 transitions. Word has length 44 [2018-03-28 12:59:34,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:34,266 INFO L459 AbstractCegarLoop]: Abstraction has 173 states and 183 transitions. [2018-03-28 12:59:34,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:59:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 183 transitions. [2018-03-28 12:59:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-03-28 12:59:34,268 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:34,268 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] [2018-03-28 12:59:34,268 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:34,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1515306675, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:34,277 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:34,294 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:34,326 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 [2018-03-28 12:59:34,328 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 [2018-03-28 12:59:34,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,330 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,333 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-03-28 12:59:34,350 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 [2018-03-28 12:59:34,352 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 [2018-03-28 12:59:34,353 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,355 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,356 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-03-28 12:59:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:34,363 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:34,394 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 12 treesize of output 10 [2018-03-28 12:59:34,396 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 6 treesize of output 1 [2018-03-28 12:59:34,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,398 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 12 treesize of output 10 [2018-03-28 12:59:34,401 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 [2018-03-28 12:59:34,401 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,402 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:59:34,405 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:16, output treesize:7 [2018-03-28 12:59:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:34,432 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:34,433 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-28 12:59:34,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:59:34,433 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:59:34,433 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:59:34,433 INFO L87 Difference]: Start difference. First operand 173 states and 183 transitions. Second operand 9 states. [2018-03-28 12:59:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:34,695 INFO L93 Difference]: Finished difference Result 486 states and 508 transitions. [2018-03-28 12:59:34,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-28 12:59:34,695 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2018-03-28 12:59:34,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:34,696 INFO L225 Difference]: With dead ends: 486 [2018-03-28 12:59:34,696 INFO L226 Difference]: Without dead ends: 414 [2018-03-28 12:59:34,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:59:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2018-03-28 12:59:34,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 226. [2018-03-28 12:59:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-03-28 12:59:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 246 transitions. [2018-03-28 12:59:34,705 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 246 transitions. Word has length 45 [2018-03-28 12:59:34,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:34,705 INFO L459 AbstractCegarLoop]: Abstraction has 226 states and 246 transitions. [2018-03-28 12:59:34,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:59:34,705 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 246 transitions. [2018-03-28 12:59:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-28 12:59:34,705 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:34,706 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] [2018-03-28 12:59:34,706 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:34,706 INFO L82 PathProgramCache]: Analyzing trace with hash 195711792, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:34,712 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:34,729 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:34,777 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:34,815 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:34,816 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-03-28 12:59:34,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:59:34,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:59:34,816 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:59:34,816 INFO L87 Difference]: Start difference. First operand 226 states and 246 transitions. Second operand 9 states. [2018-03-28 12:59:34,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:34,883 INFO L93 Difference]: Finished difference Result 505 states and 558 transitions. [2018-03-28 12:59:34,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 12:59:34,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-03-28 12:59:34,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:34,886 INFO L225 Difference]: With dead ends: 505 [2018-03-28 12:59:34,886 INFO L226 Difference]: Without dead ends: 362 [2018-03-28 12:59:34,887 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:59:34,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-03-28 12:59:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 274. [2018-03-28 12:59:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-03-28 12:59:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 304 transitions. [2018-03-28 12:59:34,901 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 304 transitions. Word has length 47 [2018-03-28 12:59:34,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:34,902 INFO L459 AbstractCegarLoop]: Abstraction has 274 states and 304 transitions. [2018-03-28 12:59:34,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:59:34,902 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 304 transitions. [2018-03-28 12:59:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-03-28 12:59:34,903 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:34,903 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] [2018-03-28 12:59:34,903 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:34,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2077617878, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:34,917 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:34,938 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:34,962 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 [2018-03-28 12:59:34,964 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 [2018-03-28 12:59:34,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,965 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,966 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-03-28 12:59:34,981 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 [2018-03-28 12:59:34,983 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 [2018-03-28 12:59:34,984 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:34,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-03-28 12:59:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:34,992 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:35,046 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 7 treesize of output 5 [2018-03-28 12:59:35,048 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 5 treesize of output 3 [2018-03-28 12:59:35,048 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,049 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:59:35,061 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:7 [2018-03-28 12:59:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:35,104 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:35,105 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-03-28 12:59:35,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-28 12:59:35,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-28 12:59:35,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:59:35,105 INFO L87 Difference]: Start difference. First operand 274 states and 304 transitions. Second operand 8 states. [2018-03-28 12:59:35,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:35,296 INFO L93 Difference]: Finished difference Result 413 states and 445 transitions. [2018-03-28 12:59:35,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:59:35,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-03-28 12:59:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:35,298 INFO L225 Difference]: With dead ends: 413 [2018-03-28 12:59:35,298 INFO L226 Difference]: Without dead ends: 357 [2018-03-28 12:59:35,299 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:59:35,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-03-28 12:59:35,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 284. [2018-03-28 12:59:35,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2018-03-28 12:59:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 314 transitions. [2018-03-28 12:59:35,311 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 314 transitions. Word has length 49 [2018-03-28 12:59:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:35,311 INFO L459 AbstractCegarLoop]: Abstraction has 284 states and 314 transitions. [2018-03-28 12:59:35,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-28 12:59:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 314 transitions. [2018-03-28 12:59:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-03-28 12:59:35,312 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:35,313 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:35,313 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:35,313 INFO L82 PathProgramCache]: Analyzing trace with hash -361533683, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:35,321 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:35,339 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:35,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:35,343 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,344 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:59:35,355 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 [2018-03-28 12:59:35,357 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 [2018-03-28 12:59:35,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,359 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,364 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-03-28 12:59:35,372 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 21 treesize of output 17 [2018-03-28 12:59:35,376 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 17 treesize of output 5 [2018-03-28 12:59:35,376 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,378 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,379 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-03-28 12:59:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:35,394 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:35,437 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:35,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-28 12:59:35,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:59:35,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:59:35,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:59:35,438 INFO L87 Difference]: Start difference. First operand 284 states and 314 transitions. Second operand 7 states. [2018-03-28 12:59:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:35,786 INFO L93 Difference]: Finished difference Result 352 states and 387 transitions. [2018-03-28 12:59:35,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-28 12:59:35,787 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-03-28 12:59:35,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:35,788 INFO L225 Difference]: With dead ends: 352 [2018-03-28 12:59:35,788 INFO L226 Difference]: Without dead ends: 350 [2018-03-28 12:59:35,788 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-03-28 12:59:35,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-03-28 12:59:35,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 282. [2018-03-28 12:59:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-03-28 12:59:35,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 308 transitions. [2018-03-28 12:59:35,796 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 308 transitions. Word has length 49 [2018-03-28 12:59:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:35,797 INFO L459 AbstractCegarLoop]: Abstraction has 282 states and 308 transitions. [2018-03-28 12:59:35,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:59:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 308 transitions. [2018-03-28 12:59:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-03-28 12:59:35,798 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:35,798 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:35,798 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash -361533682, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:35,810 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:35,827 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:35,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:35,831 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,837 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:59:35,877 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 [2018-03-28 12:59:35,892 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 [2018-03-28 12:59:35,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,921 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 [2018-03-28 12:59:35,924 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 [2018-03-28 12:59:35,924 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,926 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,930 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:21 [2018-03-28 12:59:35,940 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 21 treesize of output 17 [2018-03-28 12:59:35,942 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 17 treesize of output 5 [2018-03-28 12:59:35,942 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,944 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,949 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 [2018-03-28 12:59:35,958 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 [2018-03-28 12:59:35,958 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,960 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:35,962 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:9 [2018-03-28 12:59:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:35,978 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:36,062 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:36,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2018-03-28 12:59:36,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:59:36,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:59:36,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-03-28 12:59:36,063 INFO L87 Difference]: Start difference. First operand 282 states and 308 transitions. Second operand 12 states. [2018-03-28 12:59:36,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:36,364 INFO L93 Difference]: Finished difference Result 374 states and 404 transitions. [2018-03-28 12:59:36,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-28 12:59:36,364 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2018-03-28 12:59:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:36,365 INFO L225 Difference]: With dead ends: 374 [2018-03-28 12:59:36,365 INFO L226 Difference]: Without dead ends: 370 [2018-03-28 12:59:36,366 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-03-28 12:59:36,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2018-03-28 12:59:36,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 275. [2018-03-28 12:59:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-03-28 12:59:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 291 transitions. [2018-03-28 12:59:36,378 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 291 transitions. Word has length 49 [2018-03-28 12:59:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:36,378 INFO L459 AbstractCegarLoop]: Abstraction has 275 states and 291 transitions. [2018-03-28 12:59:36,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:59:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 291 transitions. [2018-03-28 12:59:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-28 12:59:36,379 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:36,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:36,379 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:36,379 INFO L82 PathProgramCache]: Analyzing trace with hash 611279802, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:36,389 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:36,411 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:36,425 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:36,488 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:59:36,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 12:59:36,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 12:59:36,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 12:59:36,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:59:36,489 INFO L87 Difference]: Start difference. First operand 275 states and 291 transitions. Second operand 6 states. [2018-03-28 12:59:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:36,536 INFO L93 Difference]: Finished difference Result 368 states and 387 transitions. [2018-03-28 12:59:36,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:59:36,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-03-28 12:59:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:36,538 INFO L225 Difference]: With dead ends: 368 [2018-03-28 12:59:36,538 INFO L226 Difference]: Without dead ends: 317 [2018-03-28 12:59:36,539 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:59:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-03-28 12:59:36,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 262. [2018-03-28 12:59:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-03-28 12:59:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 276 transitions. [2018-03-28 12:59:36,552 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 276 transitions. Word has length 54 [2018-03-28 12:59:36,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:36,553 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 276 transitions. [2018-03-28 12:59:36,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 12:59:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 276 transitions. [2018-03-28 12:59:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-28 12:59:36,554 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:36,554 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, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:36,554 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:36,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1441379827, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:36,562 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:36,588 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:36,631 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:36,676 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:36,676 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-03-28 12:59:36,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:59:36,676 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:59:36,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:59:36,677 INFO L87 Difference]: Start difference. First operand 262 states and 276 transitions. Second operand 9 states. [2018-03-28 12:59:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:36,744 INFO L93 Difference]: Finished difference Result 640 states and 676 transitions. [2018-03-28 12:59:36,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 12:59:36,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2018-03-28 12:59:36,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:36,746 INFO L225 Difference]: With dead ends: 640 [2018-03-28 12:59:36,746 INFO L226 Difference]: Without dead ends: 487 [2018-03-28 12:59:36,747 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-03-28 12:59:36,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-03-28 12:59:36,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 297. [2018-03-28 12:59:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-03-28 12:59:36,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 312 transitions. [2018-03-28 12:59:36,762 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 312 transitions. Word has length 62 [2018-03-28 12:59:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:36,762 INFO L459 AbstractCegarLoop]: Abstraction has 297 states and 312 transitions. [2018-03-28 12:59:36,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:59:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 312 transitions. [2018-03-28 12:59:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-03-28 12:59:36,763 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:36,763 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:36,763 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:36,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1006468342, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:36,772 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:36,801 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:36,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:36,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:36,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:36,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2018-03-28 12:59:36,885 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 [2018-03-28 12:59:36,887 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 [2018-03-28 12:59:36,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:36,889 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:36,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:36,896 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2018-03-28 12:59:37,004 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 21 treesize of output 17 [2018-03-28 12:59:37,008 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:37,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-03-28 12:59:37,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:37,011 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:37,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:37,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:5 [2018-03-28 12:59:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:37,069 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:37,172 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 11 treesize of output 9 [2018-03-28 12:59:37,174 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 9 treesize of output 5 [2018-03-28 12:59:37,206 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:37,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:37,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-03-28 12:59:37,225 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:66 [2018-03-28 12:59:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:37,441 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:37,442 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2018-03-28 12:59:37,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-28 12:59:37,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-28 12:59:37,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2018-03-28 12:59:37,442 INFO L87 Difference]: Start difference. First operand 297 states and 312 transitions. Second operand 20 states. [2018-03-28 12:59:38,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:38,154 INFO L93 Difference]: Finished difference Result 407 states and 425 transitions. [2018-03-28 12:59:38,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-28 12:59:38,154 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 64 [2018-03-28 12:59:38,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:38,156 INFO L225 Difference]: With dead ends: 407 [2018-03-28 12:59:38,156 INFO L226 Difference]: Without dead ends: 406 [2018-03-28 12:59:38,156 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=907, Unknown=0, NotChecked=0, Total=1190 [2018-03-28 12:59:38,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2018-03-28 12:59:38,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 323. [2018-03-28 12:59:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-03-28 12:59:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 341 transitions. [2018-03-28 12:59:38,166 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 341 transitions. Word has length 64 [2018-03-28 12:59:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:38,166 INFO L459 AbstractCegarLoop]: Abstraction has 323 states and 341 transitions. [2018-03-28 12:59:38,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-28 12:59:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 341 transitions. [2018-03-28 12:59:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-03-28 12:59:38,167 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:38,167 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:38,167 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:38,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1006468343, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:38,174 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:38,196 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:38,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:38,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,227 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2018-03-28 12:59:38,253 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 [2018-03-28 12:59:38,257 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 [2018-03-28 12:59:38,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,259 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,268 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 [2018-03-28 12:59:38,270 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 [2018-03-28 12:59:38,270 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,271 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,278 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,278 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:30 [2018-03-28 12:59:38,372 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 21 treesize of output 17 [2018-03-28 12:59:38,375 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:38,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-03-28 12:59:38,376 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,380 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,393 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 [2018-03-28 12:59:38,396 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:38,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-03-28 12:59:38,397 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,400 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,407 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:51, output treesize:9 [2018-03-28 12:59:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:38,444 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:38,632 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 33 treesize of output 31 [2018-03-28 12:59:38,634 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 17 treesize of output 13 [2018-03-28 12:59:38,634 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,640 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,642 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 29 treesize of output 27 [2018-03-28 12:59:38,644 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 17 treesize of output 13 [2018-03-28 12:59:38,644 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,706 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 29 treesize of output 27 [2018-03-28 12:59:38,713 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 17 treesize of output 13 [2018-03-28 12:59:38,713 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,719 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:38,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 21 [2018-03-28 12:59:38,765 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 11 treesize of output 7 [2018-03-28 12:59:38,765 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,768 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,769 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 23 treesize of output 21 [2018-03-28 12:59:38,770 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 11 treesize of output 7 [2018-03-28 12:59:38,771 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,773 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,774 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 27 treesize of output 25 [2018-03-28 12:59:38,776 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 11 treesize of output 7 [2018-03-28 12:59:38,776 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,779 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,811 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 [2018-03-28 12:59:38,812 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 7 treesize of output 3 [2018-03-28 12:59:38,812 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,816 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:38,819 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 7 treesize of output 3 [2018-03-28 12:59:38,819 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,822 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:38,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-03-28 12:59:38,848 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:73, output treesize:42 [2018-03-28 12:59:38,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:39,008 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:39,008 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-03-28 12:59:39,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-28 12:59:39,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-28 12:59:39,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2018-03-28 12:59:39,010 INFO L87 Difference]: Start difference. First operand 323 states and 341 transitions. Second operand 22 states. [2018-03-28 12:59:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:39,961 INFO L93 Difference]: Finished difference Result 453 states and 473 transitions. [2018-03-28 12:59:39,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-28 12:59:39,961 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 64 [2018-03-28 12:59:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:39,963 INFO L225 Difference]: With dead ends: 453 [2018-03-28 12:59:39,964 INFO L226 Difference]: Without dead ends: 450 [2018-03-28 12:59:39,964 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=276, Invalid=984, Unknown=0, NotChecked=0, Total=1260 [2018-03-28 12:59:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2018-03-28 12:59:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 328. [2018-03-28 12:59:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-03-28 12:59:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 347 transitions. [2018-03-28 12:59:39,978 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 347 transitions. Word has length 64 [2018-03-28 12:59:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:39,979 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 347 transitions. [2018-03-28 12:59:39,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-28 12:59:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 347 transitions. [2018-03-28 12:59:39,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-03-28 12:59:39,980 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:39,980 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:39,980 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:39,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1838397429, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:39,989 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:40,015 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:40,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:40,035 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,041 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2018-03-28 12:59:40,064 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 [2018-03-28 12:59:40,066 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 [2018-03-28 12:59:40,066 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,067 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:40,074 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2018-03-28 12:59:40,136 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 21 treesize of output 17 [2018-03-28 12:59:40,138 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:40,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-03-28 12:59:40,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,143 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:40,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:5 [2018-03-28 12:59:40,186 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:40,186 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:40,307 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 11 treesize of output 9 [2018-03-28 12:59:40,310 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 9 treesize of output 5 [2018-03-28 12:59:40,310 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:40,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:40,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-03-28 12:59:40,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:66 [2018-03-28 12:59:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:40,574 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:40,574 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2018-03-28 12:59:40,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-28 12:59:40,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-28 12:59:40,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2018-03-28 12:59:40,575 INFO L87 Difference]: Start difference. First operand 328 states and 347 transitions. Second operand 20 states. [2018-03-28 12:59:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:41,133 INFO L93 Difference]: Finished difference Result 408 states and 427 transitions. [2018-03-28 12:59:41,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-28 12:59:41,133 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 68 [2018-03-28 12:59:41,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:41,134 INFO L225 Difference]: With dead ends: 408 [2018-03-28 12:59:41,134 INFO L226 Difference]: Without dead ends: 407 [2018-03-28 12:59:41,135 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=907, Unknown=0, NotChecked=0, Total=1190 [2018-03-28 12:59:41,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2018-03-28 12:59:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 350. [2018-03-28 12:59:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-03-28 12:59:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 370 transitions. [2018-03-28 12:59:41,143 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 370 transitions. Word has length 68 [2018-03-28 12:59:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:41,143 INFO L459 AbstractCegarLoop]: Abstraction has 350 states and 370 transitions. [2018-03-28 12:59:41,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-28 12:59:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 370 transitions. [2018-03-28 12:59:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-03-28 12:59:41,144 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:41,144 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:41,144 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:41,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1838397430, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:41,156 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:41,178 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:41,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:41,209 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,236 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2018-03-28 12:59:41,260 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 [2018-03-28 12:59:41,261 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 [2018-03-28 12:59:41,261 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,262 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,271 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 [2018-03-28 12:59:41,273 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 [2018-03-28 12:59:41,273 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,274 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,281 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:30 [2018-03-28 12:59:41,339 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 21 treesize of output 17 [2018-03-28 12:59:41,342 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:41,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-03-28 12:59:41,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,354 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 [2018-03-28 12:59:41,355 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:41,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-03-28 12:59:41,356 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,358 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,363 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:51, output treesize:9 [2018-03-28 12:59:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:41,398 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:41,583 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 33 treesize of output 31 [2018-03-28 12:59:41,585 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 17 treesize of output 13 [2018-03-28 12:59:41,586 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,593 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 29 treesize of output 27 [2018-03-28 12:59:41,595 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 17 treesize of output 13 [2018-03-28 12:59:41,595 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,599 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 29 treesize of output 27 [2018-03-28 12:59:41,602 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 17 treesize of output 13 [2018-03-28 12:59:41,602 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,607 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:41,660 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 23 treesize of output 21 [2018-03-28 12:59:41,661 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 11 treesize of output 7 [2018-03-28 12:59:41,662 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,665 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 21 [2018-03-28 12:59:41,667 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 11 treesize of output 7 [2018-03-28 12:59:41,668 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,671 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,672 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 27 treesize of output 25 [2018-03-28 12:59:41,673 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 11 treesize of output 7 [2018-03-28 12:59:41,674 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,677 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,710 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 [2018-03-28 12:59:41,712 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 7 treesize of output 3 [2018-03-28 12:59:41,712 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,715 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2018-03-28 12:59:41,717 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 7 treesize of output 3 [2018-03-28 12:59:41,717 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,721 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:41,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-03-28 12:59:41,747 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:73, output treesize:42 [2018-03-28 12:59:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:41,886 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:41,887 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-03-28 12:59:41,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-28 12:59:41,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-28 12:59:41,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2018-03-28 12:59:41,887 INFO L87 Difference]: Start difference. First operand 350 states and 370 transitions. Second operand 22 states. [2018-03-28 12:59:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:42,526 INFO L93 Difference]: Finished difference Result 443 states and 463 transitions. [2018-03-28 12:59:42,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-28 12:59:42,527 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 68 [2018-03-28 12:59:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:42,528 INFO L225 Difference]: With dead ends: 443 [2018-03-28 12:59:42,528 INFO L226 Difference]: Without dead ends: 441 [2018-03-28 12:59:42,529 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=276, Invalid=984, Unknown=0, NotChecked=0, Total=1260 [2018-03-28 12:59:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2018-03-28 12:59:42,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 348. [2018-03-28 12:59:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-03-28 12:59:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 367 transitions. [2018-03-28 12:59:42,540 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 367 transitions. Word has length 68 [2018-03-28 12:59:42,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:42,541 INFO L459 AbstractCegarLoop]: Abstraction has 348 states and 367 transitions. [2018-03-28 12:59:42,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-28 12:59:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 367 transitions. [2018-03-28 12:59:42,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-03-28 12:59:42,542 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:42,542 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:42,542 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:42,542 INFO L82 PathProgramCache]: Analyzing trace with hash 153277337, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:42,553 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:42,576 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:42,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:42,579 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,580 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:59:42,604 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 [2018-03-28 12:59:42,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:59:42,609 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,610 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-03-28 12:59:42,625 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:59:42,626 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:59:42,626 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 [2018-03-28 12:59:42,626 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,631 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2018-03-28 12:59:42,652 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 [2018-03-28 12:59:42,653 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 10 treesize of output 9 [2018-03-28 12:59:42,654 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-03-28 12:59:42,674 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 [2018-03-28 12:59:42,676 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 16 treesize of output 4 [2018-03-28 12:59:42,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,679 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:12 [2018-03-28 12:59:42,716 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 19 treesize of output 20 [2018-03-28 12:59:42,719 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 [2018-03-28 12:59:42,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:42,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2018-03-28 12:59:42,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:59:42,779 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:42,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 12 treesize of output 10 [2018-03-28 12:59:42,868 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 [2018-03-28 12:59:42,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,869 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,869 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 12 treesize of output 10 [2018-03-28 12:59:42,871 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 6 treesize of output 1 [2018-03-28 12:59:42,871 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,872 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:42,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-03-28 12:59:42,875 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:23, output treesize:21 [2018-03-28 12:59:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:42,934 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:42,934 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 20 [2018-03-28 12:59:42,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-28 12:59:42,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-28 12:59:42,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2018-03-28 12:59:42,935 INFO L87 Difference]: Start difference. First operand 348 states and 367 transitions. Second operand 20 states. [2018-03-28 12:59:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:43,799 INFO L93 Difference]: Finished difference Result 630 states and 657 transitions. [2018-03-28 12:59:43,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-03-28 12:59:43,799 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 68 [2018-03-28 12:59:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:43,800 INFO L225 Difference]: With dead ends: 630 [2018-03-28 12:59:43,800 INFO L226 Difference]: Without dead ends: 566 [2018-03-28 12:59:43,801 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=503, Invalid=1849, Unknown=0, NotChecked=0, Total=2352 [2018-03-28 12:59:43,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-03-28 12:59:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 376. [2018-03-28 12:59:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-03-28 12:59:43,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 395 transitions. [2018-03-28 12:59:43,811 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 395 transitions. Word has length 68 [2018-03-28 12:59:43,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:43,811 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 395 transitions. [2018-03-28 12:59:43,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-28 12:59:43,811 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 395 transitions. [2018-03-28 12:59:43,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-03-28 12:59:43,812 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:43,812 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:43,812 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:43,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1681672388, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:43,835 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:43,860 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:43,964 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 [2018-03-28 12:59:43,966 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 [2018-03-28 12:59:43,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:43,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:43,977 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 [2018-03-28 12:59:43,979 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 [2018-03-28 12:59:43,979 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:43,981 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:43,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:43,988 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:13 [2018-03-28 12:59:44,027 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 29 treesize of output 20 [2018-03-28 12:59:44,043 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 20 treesize of output 19 [2018-03-28 12:59:44,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,089 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. [2018-03-28 12:59:44,089 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:29 [2018-03-28 12:59:44,188 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 29 treesize of output 25 [2018-03-28 12:59:44,190 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:44,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-03-28 12:59:44,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,275 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 23 treesize of output 19 [2018-03-28 12:59:44,281 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:44,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 12:59:44,281 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,284 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,291 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:50, output treesize:7 [2018-03-28 12:59:44,308 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 [2018-03-28 12:59:44,309 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 [2018-03-28 12:59:44,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,310 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-03-28 12:59:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:44,349 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:44,439 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 30 treesize of output 22 [2018-03-28 12:59:44,441 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 12 treesize of output 1 [2018-03-28 12:59:44,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 30 treesize of output 22 [2018-03-28 12:59:44,444 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 1 [2018-03-28 12:59:44,444 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,445 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-03-28 12:59:44,451 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:33 [2018-03-28 12:59:44,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:44,583 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:44,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,587 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 [2018-03-28 12:59:44,588 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:44,588 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,591 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:44,612 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:44,613 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,615 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,616 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 [2018-03-28 12:59:44,617 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:44,617 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,620 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:44,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:59:44,637 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:53, output treesize:24 [2018-03-28 12:59:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:44,748 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:44,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2018-03-28 12:59:44,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-28 12:59:44,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-28 12:59:44,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2018-03-28 12:59:44,749 INFO L87 Difference]: Start difference. First operand 376 states and 395 transitions. Second operand 25 states. [2018-03-28 12:59:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:45,626 INFO L93 Difference]: Finished difference Result 536 states and 559 transitions. [2018-03-28 12:59:45,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-28 12:59:45,626 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 74 [2018-03-28 12:59:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:45,628 INFO L225 Difference]: With dead ends: 536 [2018-03-28 12:59:45,628 INFO L226 Difference]: Without dead ends: 464 [2018-03-28 12:59:45,628 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=293, Invalid=1599, Unknown=0, NotChecked=0, Total=1892 [2018-03-28 12:59:45,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-03-28 12:59:45,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 376. [2018-03-28 12:59:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-03-28 12:59:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 394 transitions. [2018-03-28 12:59:45,644 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 394 transitions. Word has length 74 [2018-03-28 12:59:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:45,644 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 394 transitions. [2018-03-28 12:59:45,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-28 12:59:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 394 transitions. [2018-03-28 12:59:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-03-28 12:59:45,645 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:45,646 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:45,646 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:45,646 INFO L82 PathProgramCache]: Analyzing trace with hash 999341851, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:45,654 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:45,683 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:45,719 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 [2018-03-28 12:59:45,721 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 [2018-03-28 12:59:45,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,723 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,732 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 [2018-03-28 12:59:45,734 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 [2018-03-28 12:59:45,734 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,735 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,742 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,742 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:13 [2018-03-28 12:59:45,775 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 29 treesize of output 20 [2018-03-28 12:59:45,776 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 20 treesize of output 19 [2018-03-28 12:59:45,777 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,789 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,821 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. [2018-03-28 12:59:45,821 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:29 [2018-03-28 12:59:45,869 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 29 treesize of output 25 [2018-03-28 12:59:45,870 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:45,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-03-28 12:59:45,871 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,874 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,881 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 23 treesize of output 19 [2018-03-28 12:59:45,882 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:45,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 12:59:45,883 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,885 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,890 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,890 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:50, output treesize:7 [2018-03-28 12:59:45,905 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 [2018-03-28 12:59:45,906 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 [2018-03-28 12:59:45,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,907 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:45,908 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-03-28 12:59:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:45,928 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:46,006 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 30 treesize of output 22 [2018-03-28 12:59:46,007 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 12 treesize of output 1 [2018-03-28 12:59:46,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,008 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 30 treesize of output 22 [2018-03-28 12:59:46,011 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 1 [2018-03-28 12:59:46,011 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,012 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-03-28 12:59:46,019 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:33 [2018-03-28 12:59:46,150 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 [2018-03-28 12:59:46,152 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:46,152 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:46,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:46,158 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,160 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:46,183 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:46,183 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,186 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,187 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 [2018-03-28 12:59:46,188 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:46,188 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,191 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:46,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:59:46,207 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:53, output treesize:24 [2018-03-28 12:59:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:46,305 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:46,305 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2018-03-28 12:59:46,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-28 12:59:46,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-28 12:59:46,305 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2018-03-28 12:59:46,306 INFO L87 Difference]: Start difference. First operand 376 states and 394 transitions. Second operand 25 states. [2018-03-28 12:59:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:46,898 INFO L93 Difference]: Finished difference Result 496 states and 516 transitions. [2018-03-28 12:59:46,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-28 12:59:46,899 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 78 [2018-03-28 12:59:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:46,901 INFO L225 Difference]: With dead ends: 496 [2018-03-28 12:59:46,901 INFO L226 Difference]: Without dead ends: 440 [2018-03-28 12:59:46,901 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 130 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=267, Invalid=1455, Unknown=0, NotChecked=0, Total=1722 [2018-03-28 12:59:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2018-03-28 12:59:46,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 379. [2018-03-28 12:59:46,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-03-28 12:59:46,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 397 transitions. [2018-03-28 12:59:46,911 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 397 transitions. Word has length 78 [2018-03-28 12:59:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:46,911 INFO L459 AbstractCegarLoop]: Abstraction has 379 states and 397 transitions. [2018-03-28 12:59:46,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-28 12:59:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 397 transitions. [2018-03-28 12:59:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-03-28 12:59:46,912 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:46,912 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:46,912 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:46,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1259764447, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:46,919 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:46,944 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:47,026 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 [2018-03-28 12:59:47,028 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 [2018-03-28 12:59:47,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,039 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 [2018-03-28 12:59:47,041 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 [2018-03-28 12:59:47,041 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,042 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,049 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,049 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:13 [2018-03-28 12:59:47,080 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 29 treesize of output 20 [2018-03-28 12:59:47,081 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 20 treesize of output 19 [2018-03-28 12:59:47,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,083 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,087 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. [2018-03-28 12:59:47,088 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:29 [2018-03-28 12:59:47,124 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 29 treesize of output 25 [2018-03-28 12:59:47,126 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:47,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-03-28 12:59:47,126 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,136 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 23 treesize of output 19 [2018-03-28 12:59:47,137 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:47,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 12:59:47,138 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,140 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,145 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:50, output treesize:7 [2018-03-28 12:59:47,160 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 [2018-03-28 12:59:47,161 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 [2018-03-28 12:59:47,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,163 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-03-28 12:59:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:47,187 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:47,280 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 11 [2018-03-28 12:59:47,282 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 11 treesize of output 3 [2018-03-28 12:59:47,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,283 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-03-28 12:59:47,288 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-03-28 12:59:47,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:47,405 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:47,405 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,409 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 [2018-03-28 12:59:47,410 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:47,411 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,413 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,433 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 17 [2018-03-28 12:59:47,434 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:47,434 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,437 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,438 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 [2018-03-28 12:59:47,439 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:59:47,439 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,442 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:47,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:59:47,459 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:53, output treesize:24 [2018-03-28 12:59:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:47,562 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:47,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 24 [2018-03-28 12:59:47,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-03-28 12:59:47,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-03-28 12:59:47,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2018-03-28 12:59:47,576 INFO L87 Difference]: Start difference. First operand 379 states and 397 transitions. Second operand 24 states. [2018-03-28 12:59:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:48,194 INFO L93 Difference]: Finished difference Result 491 states and 510 transitions. [2018-03-28 12:59:48,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-28 12:59:48,194 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 78 [2018-03-28 12:59:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:48,196 INFO L225 Difference]: With dead ends: 491 [2018-03-28 12:59:48,196 INFO L226 Difference]: Without dead ends: 435 [2018-03-28 12:59:48,196 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 130 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=1175, Unknown=0, NotChecked=0, Total=1406 [2018-03-28 12:59:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2018-03-28 12:59:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 376. [2018-03-28 12:59:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-03-28 12:59:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 393 transitions. [2018-03-28 12:59:48,206 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 393 transitions. Word has length 78 [2018-03-28 12:59:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:48,207 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 393 transitions. [2018-03-28 12:59:48,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-03-28 12:59:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 393 transitions. [2018-03-28 12:59:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:59:48,207 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:48,207 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:48,208 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:48,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1900743019, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:48,219 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:48,244 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-28 12:59:48,376 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-28 12:59:48,418 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:48,418 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-03-28 12:59:48,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:59:48,419 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:59:48,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:59:48,419 INFO L87 Difference]: Start difference. First operand 376 states and 393 transitions. Second operand 10 states. [2018-03-28 12:59:48,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:48,504 INFO L93 Difference]: Finished difference Result 494 states and 516 transitions. [2018-03-28 12:59:48,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-28 12:59:48,505 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2018-03-28 12:59:48,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:48,506 INFO L225 Difference]: With dead ends: 494 [2018-03-28 12:59:48,506 INFO L226 Difference]: Without dead ends: 430 [2018-03-28 12:59:48,506 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:59:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2018-03-28 12:59:48,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 371. [2018-03-28 12:59:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-03-28 12:59:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 392 transitions. [2018-03-28 12:59:48,515 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 392 transitions. Word has length 83 [2018-03-28 12:59:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:48,515 INFO L459 AbstractCegarLoop]: Abstraction has 371 states and 392 transitions. [2018-03-28 12:59:48,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:59:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 392 transitions. [2018-03-28 12:59:48,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:59:48,515 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:48,516 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:48,516 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:48,516 INFO L82 PathProgramCache]: Analyzing trace with hash -754846383, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:48,522 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:48,546 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-28 12:59:48,566 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-28 12:59:48,611 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:48,612 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-03-28 12:59:48,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:59:48,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:59:48,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:59:48,612 INFO L87 Difference]: Start difference. First operand 371 states and 392 transitions. Second operand 10 states. [2018-03-28 12:59:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:48,694 INFO L93 Difference]: Finished difference Result 551 states and 581 transitions. [2018-03-28 12:59:48,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:59:48,694 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2018-03-28 12:59:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:48,696 INFO L225 Difference]: With dead ends: 551 [2018-03-28 12:59:48,696 INFO L226 Difference]: Without dead ends: 487 [2018-03-28 12:59:48,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-03-28 12:59:48,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-03-28 12:59:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 366. [2018-03-28 12:59:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-03-28 12:59:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 393 transitions. [2018-03-28 12:59:48,712 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 393 transitions. Word has length 83 [2018-03-28 12:59:48,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:48,712 INFO L459 AbstractCegarLoop]: Abstraction has 366 states and 393 transitions. [2018-03-28 12:59:48,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:59:48,712 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 393 transitions. [2018-03-28 12:59:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:59:48,713 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:48,713 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:48,713 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:48,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1638822865, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:48,720 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:48,742 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:48,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:48,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,747 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:59:48,770 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:59:48,770 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:59:48,771 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 [2018-03-28 12:59:48,771 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,776 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-03-28 12:59:48,794 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 [2018-03-28 12:59:48,795 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 10 treesize of output 9 [2018-03-28 12:59:48,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,797 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,803 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2018-03-28 12:59:48,871 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 47 treesize of output 41 [2018-03-28 12:59:48,874 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 16 treesize of output 15 [2018-03-28 12:59:48,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,880 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,891 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. [2018-03-28 12:59:48,891 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:31 [2018-03-28 12:59:48,982 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 31 treesize of output 25 [2018-03-28 12:59:48,984 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:48,985 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 25 treesize of output 17 [2018-03-28 12:59:48,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:48,999 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:5 [2018-03-28 12:59:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:49,069 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:49,164 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2018-03-28 12:59:49,165 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:49,171 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:26 [2018-03-28 12:59:49,889 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 39 treesize of output 31 [2018-03-28 12:59:49,901 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 11 treesize of output 10 [2018-03-28 12:59:49,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 12:59:49,919 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 19 treesize of output 11 [2018-03-28 12:59:49,919 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,926 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-03-28 12:59:49,926 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,932 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 12:59:49,933 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,937 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:59:49,938 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 [2018-03-28 12:59:49,940 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 8 treesize of output 1 [2018-03-28 12:59:49,940 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,943 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:49,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 12:59:49,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-03-28 12:59:49,976 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:46, output treesize:63 [2018-03-28 12:59:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:50,304 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:59:50,304 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2018-03-28 12:59:50,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-03-28 12:59:50,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-03-28 12:59:50,305 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2018-03-28 12:59:50,305 INFO L87 Difference]: Start difference. First operand 366 states and 393 transitions. Second operand 28 states. [2018-03-28 12:59:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:59:51,406 INFO L93 Difference]: Finished difference Result 517 states and 554 transitions. [2018-03-28 12:59:51,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-28 12:59:51,406 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 83 [2018-03-28 12:59:51,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:59:51,408 INFO L225 Difference]: With dead ends: 517 [2018-03-28 12:59:51,408 INFO L226 Difference]: Without dead ends: 516 [2018-03-28 12:59:51,409 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=351, Invalid=1719, Unknown=0, NotChecked=0, Total=2070 [2018-03-28 12:59:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2018-03-28 12:59:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 395. [2018-03-28 12:59:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-03-28 12:59:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 425 transitions. [2018-03-28 12:59:51,421 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 425 transitions. Word has length 83 [2018-03-28 12:59:51,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:59:51,422 INFO L459 AbstractCegarLoop]: Abstraction has 395 states and 425 transitions. [2018-03-28 12:59:51,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-03-28 12:59:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 425 transitions. [2018-03-28 12:59:51,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:59:51,422 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:59:51,423 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:59:51,423 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 12:59:51,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1638822864, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:59:51,428 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:59:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:59:51,453 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:59:51,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:59:51,456 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,458 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:59:51,481 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:59:51,482 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:59:51,482 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 [2018-03-28 12:59:51,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,488 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-03-28 12:59:51,510 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 [2018-03-28 12:59:51,512 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 10 treesize of output 9 [2018-03-28 12:59:51,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,523 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 [2018-03-28 12:59:51,525 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 [2018-03-28 12:59:51,525 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,526 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,534 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:32 [2018-03-28 12:59:51,590 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 74 treesize of output 68 [2018-03-28 12:59:51,592 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 16 treesize of output 15 [2018-03-28 12:59:51,592 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,614 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 35 treesize of output 36 [2018-03-28 12:59:51,616 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 16 treesize of output 15 [2018-03-28 12:59:51,616 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,621 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:59:51,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:97, output treesize:40 [2018-03-28 12:59:51,705 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 31 treesize of output 25 [2018-03-28 12:59:51,707 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:51,707 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 25 treesize of output 17 [2018-03-28 12:59:51,707 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,711 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 15 [2018-03-28 12:59:51,721 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 12:59:51,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-03-28 12:59:51,722 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,724 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,731 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2018-03-28 12:59:51,781 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:59:51,782 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:59:51,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 64 [2018-03-28 12:59:51,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-28 12:59:51,960 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 40 treesize of output 38 [2018-03-28 12:59:51,960 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:59:51,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2018-03-28 12:59:51,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:101, output treesize:99 [2018-03-28 12:59:56,332 WARN L148 SmtUtils]: Spent 2264ms on a formula simplification that was a NOOP. DAG size: 57 [2018-03-28 13:00:02,584 WARN L148 SmtUtils]: Spent 4068ms on a formula simplification that was a NOOP. DAG size: 57 [2018-03-28 13:00:09,299 WARN L148 SmtUtils]: Spent 2380ms on a formula simplification that was a NOOP. DAG size: 61 [2018-03-28 13:00:09,305 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 51 treesize of output 42 [2018-03-28 13:00:09,321 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 11 treesize of output 10 [2018-03-28 13:00:09,322 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,337 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 [2018-03-28 13:00:09,339 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 8 treesize of output 1 [2018-03-28 13:00:09,339 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,341 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:09,349 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 19 treesize of output 11 [2018-03-28 13:00:09,349 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,359 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:09,359 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,366 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-03-28 13:00:09,366 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,369 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:09,381 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:09,446 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 53 treesize of output 44 [2018-03-28 13:00:09,463 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 11 treesize of output 10 [2018-03-28 13:00:09,464 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2018-03-28 13:00:09,486 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 21 treesize of output 17 [2018-03-28 13:00:09,486 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2018-03-28 13:00:09,498 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:09,505 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-03-28 13:00:09,505 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,509 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:00:09,510 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 [2018-03-28 13:00:09,512 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 8 treesize of output 1 [2018-03-28 13:00:09,512 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,515 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,529 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-03-28 13:00:09,641 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 51 treesize of output 42 [2018-03-28 13:00:09,658 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 11 treesize of output 10 [2018-03-28 13:00:09,658 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:09,679 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 19 treesize of output 11 [2018-03-28 13:00:09,680 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,687 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 11 treesize of output 7 [2018-03-28 13:00:09,687 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-03-28 13:00:09,701 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:09,705 INFO L267 ElimStorePlain]: Start of recursive call 20: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:00:09,707 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 [2018-03-28 13:00:09,709 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 8 treesize of output 1 [2018-03-28 13:00:09,709 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,712 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:09,727 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-03-28 13:00:09,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 3 dim-2 vars, End of recursive call: and 11 xjuncts. [2018-03-28 13:00:09,874 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 12 variables, input treesize:156, output treesize:112 [2018-03-28 13:00:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:10,270 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:00:10,271 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-03-28 13:00:10,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-03-28 13:00:10,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-03-28 13:00:10,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=784, Unknown=4, NotChecked=0, Total=870 [2018-03-28 13:00:10,271 INFO L87 Difference]: Start difference. First operand 395 states and 425 transitions. Second operand 30 states. [2018-03-28 13:00:12,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:00:12,008 INFO L93 Difference]: Finished difference Result 532 states and 567 transitions. [2018-03-28 13:00:12,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-28 13:00:12,008 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 83 [2018-03-28 13:00:12,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:00:12,010 INFO L225 Difference]: With dead ends: 532 [2018-03-28 13:00:12,010 INFO L226 Difference]: Without dead ends: 531 [2018-03-28 13:00:12,011 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=409, Invalid=2037, Unknown=4, NotChecked=0, Total=2450 [2018-03-28 13:00:12,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2018-03-28 13:00:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 395. [2018-03-28 13:00:12,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-03-28 13:00:12,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 424 transitions. [2018-03-28 13:00:12,022 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 424 transitions. Word has length 83 [2018-03-28 13:00:12,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:00:12,022 INFO L459 AbstractCegarLoop]: Abstraction has 395 states and 424 transitions. [2018-03-28 13:00:12,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-03-28 13:00:12,022 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 424 transitions. [2018-03-28 13:00:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-03-28 13:00:12,023 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:00:12,023 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:00:12,023 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 13:00:12,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1050690678, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:00:12,029 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:00:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:00:12,058 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:00:12,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:00:12,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,064 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:00:12,087 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:12,088 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:12,088 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 [2018-03-28 13:00:12,088 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,093 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-03-28 13:00:12,113 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 [2018-03-28 13:00:12,114 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 10 treesize of output 9 [2018-03-28 13:00:12,115 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,123 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2018-03-28 13:00:12,172 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 47 treesize of output 41 [2018-03-28 13:00:12,174 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 16 treesize of output 15 [2018-03-28 13:00:12,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,181 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,190 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. [2018-03-28 13:00:12,190 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:31 [2018-03-28 13:00:12,258 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 31 treesize of output 25 [2018-03-28 13:00:12,261 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:12,261 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 25 treesize of output 17 [2018-03-28 13:00:12,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,271 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:5 [2018-03-28 13:00:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:12,314 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:00:12,373 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2018-03-28 13:00:12,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:12,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:12,380 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:26 [2018-03-28 13:00:18,877 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 39 treesize of output 31 [2018-03-28 13:00:18,890 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 11 treesize of output 10 [2018-03-28 13:00:18,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:18,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:18,908 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 13:00:18,908 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:18,915 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 [2018-03-28 13:00:18,916 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:18,921 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:18,922 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:18,924 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:18,926 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 [2018-03-28 13:00:18,927 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 8 treesize of output 1 [2018-03-28 13:00:18,927 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:18,930 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:18,939 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:18,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-03-28 13:00:18,960 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:46, output treesize:63 [2018-03-28 13:00:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:19,313 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:00:19,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2018-03-28 13:00:19,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-03-28 13:00:19,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-03-28 13:00:19,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=674, Unknown=4, NotChecked=0, Total=756 [2018-03-28 13:00:19,314 INFO L87 Difference]: Start difference. First operand 395 states and 424 transitions. Second operand 28 states. [2018-03-28 13:00:20,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:00:20,345 INFO L93 Difference]: Finished difference Result 502 states and 537 transitions. [2018-03-28 13:00:20,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-28 13:00:20,345 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 87 [2018-03-28 13:00:20,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:00:20,346 INFO L225 Difference]: With dead ends: 502 [2018-03-28 13:00:20,347 INFO L226 Difference]: Without dead ends: 501 [2018-03-28 13:00:20,347 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=351, Invalid=1715, Unknown=4, NotChecked=0, Total=2070 [2018-03-28 13:00:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2018-03-28 13:00:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 420. [2018-03-28 13:00:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2018-03-28 13:00:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 451 transitions. [2018-03-28 13:00:20,359 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 451 transitions. Word has length 87 [2018-03-28 13:00:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:00:20,359 INFO L459 AbstractCegarLoop]: Abstraction has 420 states and 451 transitions. [2018-03-28 13:00:20,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-03-28 13:00:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 451 transitions. [2018-03-28 13:00:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-03-28 13:00:20,360 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:00:20,360 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:00:20,360 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 13:00:20,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1050690679, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:00:20,365 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:00:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:00:20,389 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:00:20,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:00:20,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,395 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:00:20,422 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:20,423 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:20,424 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 [2018-03-28 13:00:20,424 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,430 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-03-28 13:00:20,453 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 [2018-03-28 13:00:20,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-03-28 13:00:20,455 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,457 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,466 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 [2018-03-28 13:00:20,467 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 10 treesize of output 9 [2018-03-28 13:00:20,468 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,469 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,476 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:32 [2018-03-28 13:00:20,529 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 35 treesize of output 36 [2018-03-28 13:00:20,531 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 16 treesize of output 15 [2018-03-28 13:00:20,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,535 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,552 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 64 treesize of output 58 [2018-03-28 13:00:20,553 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 16 treesize of output 15 [2018-03-28 13:00:20,554 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,559 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:20,571 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:97, output treesize:40 [2018-03-28 13:00:20,637 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 31 treesize of output 25 [2018-03-28 13:00:20,639 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:20,639 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 25 treesize of output 17 [2018-03-28 13:00:20,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,643 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 15 [2018-03-28 13:00:20,655 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:20,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-03-28 13:00:20,655 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,658 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,665 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2018-03-28 13:00:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:20,723 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:00:20,850 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 40 treesize of output 38 [2018-03-28 13:00:20,851 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:20,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 64 [2018-03-28 13:00:20,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:20,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2018-03-28 13:00:20,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:101, output treesize:99 [2018-03-28 13:00:25,669 WARN L148 SmtUtils]: Spent 4082ms on a formula simplification that was a NOOP. DAG size: 57 [2018-03-28 13:00:32,599 WARN L148 SmtUtils]: Spent 2741ms on a formula simplification that was a NOOP. DAG size: 61 [2018-03-28 13:00:32,604 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 51 treesize of output 42 [2018-03-28 13:00:32,622 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 11 treesize of output 10 [2018-03-28 13:00:32,623 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,638 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 [2018-03-28 13:00:32,640 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 8 treesize of output 1 [2018-03-28 13:00:32,640 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,643 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:32,651 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:32,651 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,660 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 19 treesize of output 11 [2018-03-28 13:00:32,661 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,668 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-03-28 13:00:32,669 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,678 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:32,694 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:32,777 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 53 treesize of output 44 [2018-03-28 13:00:32,797 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 11 treesize of output 10 [2018-03-28 13:00:32,797 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2018-03-28 13:00:32,823 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 21 treesize of output 17 [2018-03-28 13:00:32,823 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2018-03-28 13:00:32,837 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:32,846 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 [2018-03-28 13:00:32,846 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,870 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:00:32,872 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 [2018-03-28 13:00:32,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-03-28 13:00:32,873 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,876 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:32,892 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-03-28 13:00:33,054 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 51 treesize of output 42 [2018-03-28 13:00:33,073 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 11 treesize of output 10 [2018-03-28 13:00:33,074 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:33,091 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 [2018-03-28 13:00:33,093 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 8 treesize of output 1 [2018-03-28 13:00:33,093 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:33,096 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:33,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:33,104 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 19 treesize of output 15 [2018-03-28 13:00:33,104 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:33,113 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 [2018-03-28 13:00:33,113 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:33,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-03-28 13:00:33,124 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:33,129 INFO L267 ElimStorePlain]: Start of recursive call 22: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:00:33,145 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-03-28 13:00:33,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 3 dim-2 vars, End of recursive call: and 11 xjuncts. [2018-03-28 13:00:33,316 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 12 variables, input treesize:156, output treesize:112 [2018-03-28 13:00:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:33,768 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:00:33,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-03-28 13:00:33,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-03-28 13:00:33,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-03-28 13:00:33,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=787, Unknown=1, NotChecked=0, Total=870 [2018-03-28 13:00:33,769 INFO L87 Difference]: Start difference. First operand 420 states and 451 transitions. Second operand 30 states. [2018-03-28 13:00:35,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:00:35,350 INFO L93 Difference]: Finished difference Result 506 states and 539 transitions. [2018-03-28 13:00:35,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-28 13:00:35,350 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 87 [2018-03-28 13:00:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:00:35,352 INFO L225 Difference]: With dead ends: 506 [2018-03-28 13:00:35,352 INFO L226 Difference]: Without dead ends: 505 [2018-03-28 13:00:35,353 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=409, Invalid=2040, Unknown=1, NotChecked=0, Total=2450 [2018-03-28 13:00:35,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-03-28 13:00:35,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 420. [2018-03-28 13:00:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2018-03-28 13:00:35,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 450 transitions. [2018-03-28 13:00:35,364 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 450 transitions. Word has length 87 [2018-03-28 13:00:35,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:00:35,365 INFO L459 AbstractCegarLoop]: Abstraction has 420 states and 450 transitions. [2018-03-28 13:00:35,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-03-28 13:00:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 450 transitions. [2018-03-28 13:00:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-03-28 13:00:35,365 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:00:35,365 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:00:35,365 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 13:00:35,366 INFO L82 PathProgramCache]: Analyzing trace with hash 807931699, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:00:35,371 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:00:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:00:35,397 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:00:35,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:00:35,404 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,407 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:00:35,430 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:35,431 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:35,432 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 [2018-03-28 13:00:35,432 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,443 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-03-28 13:00:35,466 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 [2018-03-28 13:00:35,468 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 10 treesize of output 9 [2018-03-28 13:00:35,468 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,480 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 [2018-03-28 13:00:35,482 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 [2018-03-28 13:00:35,482 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,484 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,492 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,493 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-03-28 13:00:35,564 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 74 treesize of output 68 [2018-03-28 13:00:35,566 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 16 treesize of output 15 [2018-03-28 13:00:35,566 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,588 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 35 treesize of output 36 [2018-03-28 13:00:35,590 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 16 treesize of output 15 [2018-03-28 13:00:35,590 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,594 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,605 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:35,605 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:95, output treesize:40 [2018-03-28 13:00:35,674 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 31 treesize of output 25 [2018-03-28 13:00:35,675 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:35,676 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 25 treesize of output 17 [2018-03-28 13:00:35,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 15 [2018-03-28 13:00:35,692 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:35,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-03-28 13:00:35,692 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,694 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:35,701 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2018-03-28 13:00:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:35,772 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:00:35,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2018-03-28 13:00:35,918 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:35,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-03-28 13:00:35,928 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:73, output treesize:93 [2018-03-28 13:00:40,475 WARN L148 SmtUtils]: Spent 495ms on a formula simplification that was a NOOP. DAG size: 49 [2018-03-28 13:00:41,032 WARN L148 SmtUtils]: Spent 152ms on a formula simplification that was a NOOP. DAG size: 49 [2018-03-28 13:00:45,358 WARN L148 SmtUtils]: Spent 4023ms on a formula simplification that was a NOOP. DAG size: 53 [2018-03-28 13:00:45,364 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 88 treesize of output 79 [2018-03-28 13:00:45,390 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 11 treesize of output 10 [2018-03-28 13:00:45,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,415 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 [2018-03-28 13:00:45,417 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 8 treesize of output 1 [2018-03-28 13:00:45,417 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,421 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:45,429 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 13:00:45,430 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,440 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 [2018-03-28 13:00:45,441 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,448 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:45,449 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,453 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:45,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:45,559 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-03-28 13:00:45,582 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 11 treesize of output 10 [2018-03-28 13:00:45,582 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-03-28 13:00:45,594 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 8 treesize of output 1 [2018-03-28 13:00:45,594 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,598 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 7 treesize of output 3 [2018-03-28 13:00:45,598 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,599 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,604 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2018-03-28 13:00:45,631 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 11 treesize of output 10 [2018-03-28 13:00:45,631 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:45,646 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:45,648 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:45,648 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,651 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,656 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,659 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 59 treesize of output 50 [2018-03-28 13:00:45,682 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 11 treesize of output 10 [2018-03-28 13:00:45,682 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,695 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 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:45,698 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 19 treesize of output 11 [2018-03-28 13:00:45,698 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,707 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 11 treesize of output 7 [2018-03-28 13:00:45,707 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,713 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:45,715 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:45,715 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,717 INFO L267 ElimStorePlain]: Start of recursive call 21: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,722 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,725 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-03-28 13:00:45,748 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 11 treesize of output 10 [2018-03-28 13:00:45,748 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,759 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 20 treesize of output 19 [2018-03-28 13:00:45,761 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 8 treesize of output 1 [2018-03-28 13:00:45,761 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,765 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 7 treesize of output 3 [2018-03-28 13:00:45,765 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,766 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,771 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,773 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 57 treesize of output 48 [2018-03-28 13:00:45,795 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 11 treesize of output 10 [2018-03-28 13:00:45,795 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,805 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 10 treesize of output 8 [2018-03-28 13:00:45,806 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 8 treesize of output 1 [2018-03-28 13:00:45,806 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,808 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,815 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,873 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 51 treesize of output 42 [2018-03-28 13:00:45,891 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 11 treesize of output 10 [2018-03-28 13:00:45,891 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2018-03-28 13:00:45,916 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 21 treesize of output 13 [2018-03-28 13:00:45,916 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2018-03-28 13:00:45,930 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:45,938 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 13 treesize of output 9 [2018-03-28 13:00:45,939 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,943 INFO L267 ElimStorePlain]: Start of recursive call 36: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:00:45,944 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 [2018-03-28 13:00:45,946 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 8 treesize of output 1 [2018-03-28 13:00:45,946 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,949 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:45,964 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-03-28 13:00:46,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: and 9 xjuncts. [2018-03-28 13:00:46,064 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 10 variables, input treesize:179, output treesize:93 [2018-03-28 13:00:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:46,470 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:00:46,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2018-03-28 13:00:46,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-03-28 13:00:46,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-03-28 13:00:46,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1024, Unknown=1, NotChecked=0, Total=1122 [2018-03-28 13:00:46,472 INFO L87 Difference]: Start difference. First operand 420 states and 450 transitions. Second operand 34 states. [2018-03-28 13:00:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:00:48,511 INFO L93 Difference]: Finished difference Result 555 states and 592 transitions. [2018-03-28 13:00:48,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-28 13:00:48,511 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 89 [2018-03-28 13:00:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:00:48,513 INFO L225 Difference]: With dead ends: 555 [2018-03-28 13:00:48,513 INFO L226 Difference]: Without dead ends: 552 [2018-03-28 13:00:48,514 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=498, Invalid=2807, Unknown=1, NotChecked=0, Total=3306 [2018-03-28 13:00:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2018-03-28 13:00:48,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 434. [2018-03-28 13:00:48,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-03-28 13:00:48,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 465 transitions. [2018-03-28 13:00:48,526 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 465 transitions. Word has length 89 [2018-03-28 13:00:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:00:48,526 INFO L459 AbstractCegarLoop]: Abstraction has 434 states and 465 transitions. [2018-03-28 13:00:48,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-03-28 13:00:48,526 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 465 transitions. [2018-03-28 13:00:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-03-28 13:00:48,527 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:00:48,528 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:00:48,528 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 13:00:48,528 INFO L82 PathProgramCache]: Analyzing trace with hash 813459354, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:00:48,543 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:00:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:00:48,572 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:00:48,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:00:48,578 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,588 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:00:48,614 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:48,615 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:48,616 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 [2018-03-28 13:00:48,616 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,622 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-03-28 13:00:48,644 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 [2018-03-28 13:00:48,645 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 10 treesize of output 9 [2018-03-28 13:00:48,645 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,647 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,658 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 [2018-03-28 13:00:48,659 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 [2018-03-28 13:00:48,659 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,660 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,669 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,669 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-03-28 13:00:48,734 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 35 treesize of output 36 [2018-03-28 13:00:48,736 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 16 treesize of output 15 [2018-03-28 13:00:48,736 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,756 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 64 treesize of output 58 [2018-03-28 13:00:48,757 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 16 treesize of output 15 [2018-03-28 13:00:48,758 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,763 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:48,775 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:95, output treesize:40 [2018-03-28 13:00:48,846 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 31 treesize of output 25 [2018-03-28 13:00:48,848 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:48,848 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 25 treesize of output 17 [2018-03-28 13:00:48,848 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,852 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2018-03-28 13:00:48,864 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:48,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-03-28 13:00:48,865 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,868 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:48,876 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2018-03-28 13:00:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:48,950 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:00:49,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2018-03-28 13:00:49,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:49,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-03-28 13:00:49,108 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:73, output treesize:93 [2018-03-28 13:00:50,579 WARN L148 SmtUtils]: Spent 155ms on a formula simplification that was a NOOP. DAG size: 49 [2018-03-28 13:00:52,553 WARN L148 SmtUtils]: Spent 197ms on a formula simplification that was a NOOP. DAG size: 53 [2018-03-28 13:00:52,560 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 88 treesize of output 79 [2018-03-28 13:00:52,582 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 11 treesize of output 10 [2018-03-28 13:00:52,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:52,612 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:52,612 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,622 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 13:00:52,622 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,633 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 [2018-03-28 13:00:52,634 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,649 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:52,651 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 [2018-03-28 13:00:52,653 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 8 treesize of output 1 [2018-03-28 13:00:52,654 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,659 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,678 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:52,771 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 51 treesize of output 42 [2018-03-28 13:00:52,787 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 11 treesize of output 10 [2018-03-28 13:00:52,787 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2018-03-28 13:00:52,807 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 21 treesize of output 13 [2018-03-28 13:00:52,808 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,815 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 13 treesize of output 9 [2018-03-28 13:00:52,815 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2018-03-28 13:00:52,825 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-03-28 13:00:52,829 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:00:52,830 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 [2018-03-28 13:00:52,831 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 8 treesize of output 1 [2018-03-28 13:00:52,831 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,834 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,849 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-03-28 13:00:52,966 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-03-28 13:00:52,987 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 11 treesize of output 10 [2018-03-28 13:00:52,988 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:52,997 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 20 treesize of output 19 [2018-03-28 13:00:52,999 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 7 treesize of output 3 [2018-03-28 13:00:52,999 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,002 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 8 treesize of output 1 [2018-03-28 13:00:53,003 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,004 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,010 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,013 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 59 treesize of output 50 [2018-03-28 13:00:53,035 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 11 treesize of output 10 [2018-03-28 13:00:53,035 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:53,052 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 19 treesize of output 15 [2018-03-28 13:00:53,052 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,060 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:53,061 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:53,061 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,064 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,069 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,071 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 57 treesize of output 48 [2018-03-28 13:00:53,092 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 11 treesize of output 10 [2018-03-28 13:00:53,093 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,101 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 10 treesize of output 8 [2018-03-28 13:00:53,104 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 8 treesize of output 1 [2018-03-28 13:00:53,104 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,105 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,111 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-03-28 13:00:53,136 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 11 treesize of output 10 [2018-03-28 13:00:53,136 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-03-28 13:00:53,148 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 7 treesize of output 3 [2018-03-28 13:00:53,148 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,152 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 8 treesize of output 1 [2018-03-28 13:00:53,152 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,153 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,158 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,160 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 59 treesize of output 50 [2018-03-28 13:00:53,182 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 11 treesize of output 10 [2018-03-28 13:00:53,183 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,197 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 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:53,199 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 19 treesize of output 15 [2018-03-28 13:00:53,199 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,207 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 [2018-03-28 13:00:53,207 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,214 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:53,215 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:53,215 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,216 INFO L267 ElimStorePlain]: Start of recursive call 39: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,221 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:53,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: and 9 xjuncts. [2018-03-28 13:00:53,305 INFO L202 ElimStorePlain]: Needed 42 recursive calls to eliminate 10 variables, input treesize:179, output treesize:93 [2018-03-28 13:00:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:53,741 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:00:53,741 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2018-03-28 13:00:53,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-03-28 13:00:53,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-03-28 13:00:53,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2018-03-28 13:00:53,742 INFO L87 Difference]: Start difference. First operand 434 states and 465 transitions. Second operand 34 states. [2018-03-28 13:00:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:00:55,602 INFO L93 Difference]: Finished difference Result 518 states and 552 transitions. [2018-03-28 13:00:55,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-28 13:00:55,602 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 93 [2018-03-28 13:00:55,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:00:55,604 INFO L225 Difference]: With dead ends: 518 [2018-03-28 13:00:55,604 INFO L226 Difference]: Without dead ends: 517 [2018-03-28 13:00:55,605 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=498, Invalid=2808, Unknown=0, NotChecked=0, Total=3306 [2018-03-28 13:00:55,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-03-28 13:00:55,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 440. [2018-03-28 13:00:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2018-03-28 13:00:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 471 transitions. [2018-03-28 13:00:55,618 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 471 transitions. Word has length 93 [2018-03-28 13:00:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:00:55,618 INFO L459 AbstractCegarLoop]: Abstraction has 440 states and 471 transitions. [2018-03-28 13:00:55,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-03-28 13:00:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 471 transitions. [2018-03-28 13:00:55,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-03-28 13:00:55,619 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:00:55,619 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:00:55,619 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 13:00:55,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1300442315, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:00:55,631 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:00:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:00:55,660 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:00:55,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:00:55,662 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,664 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:00:55,688 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,689 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,689 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 [2018-03-28 13:00:55,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,697 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-03-28 13:00:55,724 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 [2018-03-28 13:00:55,726 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 [2018-03-28 13:00:55,726 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,727 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,741 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 [2018-03-28 13:00:55,743 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 10 treesize of output 9 [2018-03-28 13:00:55,743 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,745 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,755 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:39 [2018-03-28 13:00:55,809 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 14 [2018-03-28 13:00:55,811 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 19 [2018-03-28 13:00:55,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,824 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. [2018-03-28 13:00:55,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:65, output treesize:73 [2018-03-28 13:00:55,844 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,844 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,845 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-03-28 13:00:55,846 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,857 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. [2018-03-28 13:00:55,857 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:71 [2018-03-28 13:00:55,893 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 63 [2018-03-28 13:00:55,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2018-03-28 13:00:55,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,925 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:00:55,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 49 [2018-03-28 13:00:55,931 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 16 treesize of output 15 [2018-03-28 13:00:55,931 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,937 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:55,953 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:55,953 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:97, output treesize:83 [2018-03-28 13:00:56,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 74 [2018-03-28 13:00:56,036 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 26 treesize of output 25 [2018-03-28 13:00:56,036 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,041 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:56,053 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:136, output treesize:114 [2018-03-28 13:00:56,163 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 89 [2018-03-28 13:00:56,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 20 [2018-03-28 13:00:56,165 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:56,175 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:56,175 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 41 treesize of output 29 [2018-03-28 13:00:56,175 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:56,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-03-28 13:00:56,200 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:00:56,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 13:00:56,201 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,204 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 13:00:56,216 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:135, output treesize:19 [2018-03-28 13:00:56,278 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 22 treesize of output 20 [2018-03-28 13:00:56,280 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 [2018-03-28 13:00:56,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,285 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 5 treesize of output 1 [2018-03-28 13:00:56,285 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,286 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,289 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,289 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2018-03-28 13:00:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:56,348 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:00:56,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 60 treesize of output 42 [2018-03-28 13:00:56,703 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 22 treesize of output 1 [2018-03-28 13:00:56,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,706 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 60 treesize of output 42 [2018-03-28 13:00:56,707 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 22 treesize of output 1 [2018-03-28 13:00:56,708 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,709 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:56,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-03-28 13:00:56,718 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:61, output treesize:65 [2018-03-28 13:00:57,046 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 52 treesize of output 43 [2018-03-28 13:00:57,067 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 11 treesize of output 10 [2018-03-28 13:00:57,067 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:57,090 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:57,090 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,097 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 19 treesize of output 11 [2018-03-28 13:00:57,097 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,103 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-03-28 13:00:57,103 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:57,107 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 [2018-03-28 13:00:57,108 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 8 treesize of output 1 [2018-03-28 13:00:57,108 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,111 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:57,173 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 52 treesize of output 43 [2018-03-28 13:00:57,191 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 11 treesize of output 10 [2018-03-28 13:00:57,191 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2018-03-28 13:00:57,212 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-28 13:00:57,213 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,220 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 [2018-03-28 13:00:57,220 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,227 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-03-28 13:00:57,227 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,230 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 13:00:57,231 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 [2018-03-28 13:00:57,233 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 8 treesize of output 1 [2018-03-28 13:00:57,233 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,235 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:00:57,248 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:00:57,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 10 dim-0 vars, and 10 xjuncts. [2018-03-28 13:00:57,324 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:105, output treesize:192 [2018-03-28 13:00:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:00:57,954 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:00:57,954 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 41 [2018-03-28 13:00:57,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-03-28 13:00:57,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-03-28 13:00:57,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1481, Unknown=0, NotChecked=0, Total=1640 [2018-03-28 13:00:57,955 INFO L87 Difference]: Start difference. First operand 440 states and 471 transitions. Second operand 41 states. [2018-03-28 13:01:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:01:01,738 INFO L93 Difference]: Finished difference Result 759 states and 808 transitions. [2018-03-28 13:01:01,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-03-28 13:01:01,739 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 93 [2018-03-28 13:01:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:01:01,740 INFO L225 Difference]: With dead ends: 759 [2018-03-28 13:01:01,741 INFO L226 Difference]: Without dead ends: 674 [2018-03-28 13:01:01,742 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=839, Invalid=5967, Unknown=0, NotChecked=0, Total=6806 [2018-03-28 13:01:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2018-03-28 13:01:01,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 497. [2018-03-28 13:01:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2018-03-28 13:01:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 532 transitions. [2018-03-28 13:01:01,760 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 532 transitions. Word has length 93 [2018-03-28 13:01:01,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:01:01,760 INFO L459 AbstractCegarLoop]: Abstraction has 497 states and 532 transitions. [2018-03-28 13:01:01,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-03-28 13:01:01,761 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 532 transitions. [2018-03-28 13:01:01,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-03-28 13:01:01,761 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:01:01,761 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:01:01,762 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-03-28 13:01:01,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1384752089, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:01:01,767 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:01:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:01:01,808 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:01:01,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:01:01,812 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,816 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:01:01,847 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:01:01,848 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:01:01,848 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 [2018-03-28 13:01:01,849 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,855 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-03-28 13:01:01,881 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 [2018-03-28 13:01:01,883 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 10 treesize of output 9 [2018-03-28 13:01:01,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,885 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,899 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 [2018-03-28 13:01:01,901 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 [2018-03-28 13:01:01,901 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,903 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:01,914 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-03-28 13:01:01,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:01:01,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,010 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. [2018-03-28 13:01:02,011 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:55 [2018-03-28 13:01:02,062 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 61 treesize of output 55 [2018-03-28 13:01:02,064 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 16 treesize of output 15 [2018-03-28 13:01:02,064 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,070 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,088 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 44 treesize of output 45 [2018-03-28 13:01:02,090 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 16 treesize of output 15 [2018-03-28 13:01:02,091 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,096 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 13:01:02,110 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:96, output treesize:58 [2018-03-28 13:01:02,207 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 28 treesize of output 22 [2018-03-28 13:01:02,209 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:02,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-03-28 13:01:02,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-28 13:01:02,226 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:79, output treesize:58 [2018-03-28 13:01:02,325 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:01:02,325 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:02,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 51 [2018-03-28 13:01:02,329 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:02,329 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2018-03-28 13:01:02,330 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,334 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:02,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-03-28 13:01:02,335 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,337 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:01:02,346 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:67, output treesize:5 [2018-03-28 13:01:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:01:02,418 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:01:08,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 3 [2018-03-28 13:01:08,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:08,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-28 13:01:08,815 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:69, output treesize:64 [2018-03-28 13:01:21,238 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 75 treesize of output 47 [2018-03-28 13:01:21,256 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 11 treesize of output 10 [2018-03-28 13:01:21,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 67 [2018-03-28 13:01:21,287 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 49 treesize of output 48 [2018-03-28 13:01:21,287 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,324 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 2 case distinctions, treesize of input 48 treesize of output 58 [2018-03-28 13:01:21,324 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:21,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 59 [2018-03-28 13:01:21,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 50 [2018-03-28 13:01:21,388 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:21,438 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-03-28 13:01:21,439 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2018-03-28 13:01:21,484 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,530 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 31 [2018-03-28 13:01:21,531 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:21,576 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 42 [2018-03-28 13:01:21,577 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:21,614 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 24 treesize of output 16 [2018-03-28 13:01:21,615 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,668 INFO L267 ElimStorePlain]: Start of recursive call 7: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:01:21,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 59 [2018-03-28 13:01:21,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 49 [2018-03-28 13:01:21,694 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:21,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 73 [2018-03-28 13:01:21,777 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 7 xjuncts. [2018-03-28 13:01:21,866 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-03-28 13:01:21,866 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,868 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-03-28 13:01:21,868 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,870 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-03-28 13:01:21,871 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:21,935 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 42 [2018-03-28 13:01:21,936 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:21,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2018-03-28 13:01:21,994 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:22,110 INFO L267 ElimStorePlain]: Start of recursive call 14: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 13:01:22,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 79 [2018-03-28 13:01:22,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 51 [2018-03-28 13:01:22,203 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:22,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 75 [2018-03-28 13:01:22,831 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 7 xjuncts. [2018-03-28 13:01:23,488 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-03-28 13:01:23,488 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:23,490 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-03-28 13:01:23,490 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:23,494 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-03-28 13:01:23,494 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:24,063 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 51 treesize of output 43 [2018-03-28 13:01:24,063 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:24,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 51 [2018-03-28 13:01:24,604 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:25,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2018-03-28 13:01:25,143 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:25,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 69 [2018-03-28 13:01:25,745 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 7 xjuncts. [2018-03-28 13:01:26,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 55 [2018-03-28 13:01:26,258 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:27,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2018-03-28 13:01:27,033 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:27,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-03-28 13:01:27,035 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:27,415 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-03-28 13:01:27,415 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:27,417 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-03-28 13:01:27,417 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:27,419 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-03-28 13:01:27,419 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:28,435 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-03-28 13:01:28,435 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:28,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2018-03-28 13:01:28,772 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:29,099 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-03-28 13:01:29,100 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:29,761 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-03-28 13:01:29,761 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:30,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2018-03-28 13:01:30,019 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:30,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2018-03-28 13:01:30,590 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:30,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 55 [2018-03-28 13:01:30,783 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:30,987 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 33 treesize of output 25 [2018-03-28 13:01:30,987 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:31,184 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-03-28 13:01:31,185 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:31,557 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 18 treesize of output 10 [2018-03-28 13:01:31,558 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:31,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 33 [2018-03-28 13:01:31,713 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:31,868 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2018-03-28 13:01:31,869 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:31,875 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2018-03-28 13:01:31,876 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:31,995 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 28 treesize of output 20 [2018-03-28 13:01:31,995 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:31,997 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 29 treesize of output 21 [2018-03-28 13:01:31,998 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:32,111 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2018-03-28 13:01:32,111 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:33,174 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-03-28 13:01:33,174 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:33,792 INFO L267 ElimStorePlain]: Start of recursive call 22: 57 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:01:33,867 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-28 13:01:33,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 39 treesize of output 78 [2018-03-28 13:01:33,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2018-03-28 13:01:33,905 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:34,017 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:34,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2018-03-28 13:01:34,018 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:34,145 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 2 case distinctions, treesize of input 51 treesize of output 61 [2018-03-28 13:01:34,145 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:34,275 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:34,285 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 3 case distinctions, treesize of input 44 treesize of output 63 [2018-03-28 13:01:34,286 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:34,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 60 [2018-03-28 13:01:34,700 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 127 DAG size of output 121 [2018-03-28 13:01:34,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 59 [2018-03-28 13:01:34,725 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:34,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 37 [2018-03-28 13:01:34,884 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:34,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 37 [2018-03-28 13:01:34,961 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:35,027 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2018-03-28 13:01:35,027 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:35,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 49 [2018-03-28 13:01:35,097 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:35,162 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 28 treesize of output 20 [2018-03-28 13:01:35,163 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:35,221 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 33 treesize of output 25 [2018-03-28 13:01:35,221 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:35,223 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 29 treesize of output 21 [2018-03-28 13:01:35,224 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:35,363 INFO L267 ElimStorePlain]: Start of recursive call 60: 10 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-03-28 13:01:35,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 63 [2018-03-28 13:01:35,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2018-03-28 13:01:35,602 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:35,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-03-28 13:01:35,710 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:35,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-03-28 13:01:35,712 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:35,804 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-03-28 13:01:35,804 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:35,897 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:35,901 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:35,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 76 [2018-03-28 13:01:35,918 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 7 xjuncts. [2018-03-28 13:01:36,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 37 [2018-03-28 13:01:36,054 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:36,178 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-03-28 13:01:36,179 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:36,181 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-03-28 13:01:36,181 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:36,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 39 [2018-03-28 13:01:36,273 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:36,354 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-03-28 13:01:36,354 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:36,389 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:36,392 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:01:36,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-03-28 13:01:36,402 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:36,535 INFO L267 ElimStorePlain]: Start of recursive call 69: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 13:01:36,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 62 [2018-03-28 13:01:36,551 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 41 treesize of output 33 [2018-03-28 13:01:36,551 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:36,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 50 [2018-03-28 13:01:36,610 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:36,697 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2018-03-28 13:01:36,698 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:36,807 INFO L267 ElimStorePlain]: Start of recursive call 81: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 13:01:37,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 84 [2018-03-28 13:01:37,224 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-03-28 13:01:40,366 WARN L151 SmtUtils]: Spent 3123ms on a formula simplification. DAG size of input: 807 DAG size of output 799 [2018-03-28 13:01:40,367 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-03-28 13:01:40,370 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2018-03-28 13:01:40,370 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:42,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 47 [2018-03-28 13:01:42,158 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:43,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 74 [2018-03-28 13:01:43,980 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 16 xjuncts. [2018-03-28 13:01:45,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 77 [2018-03-28 13:01:45,693 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 16 xjuncts. [2018-03-28 13:01:46,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 74 [2018-03-28 13:01:46,990 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 16 xjuncts. [2018-03-28 13:01:47,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2018-03-28 13:01:47,937 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:49,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 44 [2018-03-28 13:01:49,808 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:50,857 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2018-03-28 13:01:50,858 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 2 xjuncts. [2018-03-28 13:01:50,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2018-03-28 13:01:50,870 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 3 xjuncts. [2018-03-28 13:01:51,239 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-03-28 13:01:51,240 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:51,811 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 42 treesize of output 34 [2018-03-28 13:01:51,811 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:52,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2018-03-28 13:01:52,095 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-03-28 13:01:52,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2018-03-28 13:01:52,428 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 2 xjuncts. Received shutdown request... [2018-03-28 13:01:52,763 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-03-28 13:01:52,763 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 13:01:52,768 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 13:01:52,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 01:01:52 BoogieIcfgContainer [2018-03-28 13:01:52,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 13:01:52,769 INFO L168 Benchmark]: Toolchain (without parser) took 142538.89 ms. Allocated memory was 308.8 MB in the beginning and 515.4 MB in the end (delta: 206.6 MB). Free memory was 246.0 MB in the beginning and 390.3 MB in the end (delta: -144.3 MB). Peak memory consumption was 263.8 MB. Max. memory is 5.3 GB. [2018-03-28 13:01:52,770 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 308.8 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:01:52,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.76 ms. Allocated memory is still 308.8 MB. Free memory was 246.0 MB in the beginning and 221.0 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:01:52,771 INFO L168 Benchmark]: Boogie Preprocessor took 59.32 ms. Allocated memory is still 308.8 MB. Free memory was 221.0 MB in the beginning and 218.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:01:52,771 INFO L168 Benchmark]: RCFGBuilder took 586.63 ms. Allocated memory was 308.8 MB in the beginning and 471.9 MB in the end (delta: 163.1 MB). Free memory was 218.0 MB in the beginning and 395.6 MB in the end (delta: -177.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. [2018-03-28 13:01:52,772 INFO L168 Benchmark]: TraceAbstraction took 141545.56 ms. Allocated memory was 471.9 MB in the beginning and 515.4 MB in the end (delta: 43.5 MB). Free memory was 395.6 MB in the beginning and 390.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 250.3 MB. Max. memory is 5.3 GB. [2018-03-28 13:01:52,773 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 308.8 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 341.76 ms. Allocated memory is still 308.8 MB. Free memory was 246.0 MB in the beginning and 221.0 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 59.32 ms. Allocated memory is still 308.8 MB. Free memory was 221.0 MB in the beginning and 218.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 586.63 ms. Allocated memory was 308.8 MB in the beginning and 471.9 MB in the end (delta: 163.1 MB). Free memory was 218.0 MB in the beginning and 395.6 MB in the end (delta: -177.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 141545.56 ms. Allocated memory was 471.9 MB in the beginning and 515.4 MB in the end (delta: 43.5 MB). Free memory was 395.6 MB in the beginning and 390.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 250.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 639]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 639). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 666]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 666). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 665]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 665). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 657]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 657). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 661]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 661). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 659]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 659). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 653]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 653). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 655). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 664]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 664). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 657]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 657). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 661]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 661). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 665]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 665). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 669]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 669). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 655). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 626]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 626). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 659]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 659). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 669]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 669). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 647]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 647). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 664]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 664). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 666]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 666). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 647]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 647). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 639]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 639). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - TimeoutResultAtElement [Line: 653]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 653). Cancelled while BasicCegarLoop was analyzing trace of length 94 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 93. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 147 locations, 33 error locations. TIMEOUT Result, 141.4s OverallTime, 33 OverallIterations, 3 TraceHistogramMax, 22.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4496 SDtfs, 19602 SDslu, 37112 SDs, 0 SdLazy, 15271 SolverSat, 1511 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4263 GetRequests, 3403 SyntacticMatches, 22 SemanticMatches, 838 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6054 ImplicationChecksByTransitivity, 67.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=497occurred in iteration=32, 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: 0.3s AutomataMinimizationTime, 32 MinimizatonAttempts, 3046 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 66.0s InterpolantComputationTime, 1959 NumberOfCodeBlocks, 1959 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 3854 ConstructedInterpolants, 1115 QuantifiedInterpolants, 5487001 SizeOfPredicates, 437 NumberOfNonLiveVariables, 5027 ConjunctsInSsa, 614 ConjunctsInUnsatCore, 64 InterpolantComputations, 26 PerfectInterpolantSequences, 194/684 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_false-unreach-call_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_13-01-52-781.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_false-unreach-call_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_13-01-52-781.csv Completed graceful shutdown