java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerBplInlineTransformed.xml --icfgtransformation.transformationtype MAP_ELIMINATION_MONNIAUX --icfgtransformation.map.elimination.monniaux.number.of.cells 1 -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/string.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 09:49:40,812 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 09:49:40,814 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 09:49:40,827 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 09:49:40,828 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 09:49:40,829 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 09:49:40,831 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 09:49:40,833 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 09:49:40,835 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 09:49:40,836 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 09:49:40,837 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 09:49:40,837 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 09:49:40,838 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 09:49:40,839 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 09:49:40,840 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 09:49:40,841 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 09:49:40,842 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 09:49:40,844 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 09:49:40,846 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 09:49:40,848 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 09:49:40,849 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 09:49:40,850 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 09:49:40,852 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 09:49:40,853 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 09:49:40,853 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 09:49:40,854 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 09:49:40,854 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 09:49:40,855 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 09:49:40,855 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 09:49:40,856 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 09:49:40,857 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 09:49:40,858 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 09:49:40,859 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 09:49:40,859 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 09:49:40,860 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 09:49:40,860 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 09:49:40,860 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 09:49:40,861 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 09:49:40,862 INFO L146 ILogger]: Finished resetting all preferences to default values... Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: TransformationType -> MAP_ELIMINATION_MONNIAUX Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: Map elimination Monniaux: number of cells -> 1 [2019-05-23 09:49:40,894 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 09:49:40,906 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 09:49:40,910 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 09:49:40,911 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 09:49:40,912 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 09:49:40,913 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string.i_3.bpl [2019-05-23 09:49:40,913 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string.i_3.bpl' [2019-05-23 09:49:40,960 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 09:49:40,962 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 09:49:40,963 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 09:49:40,963 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 09:49:40,963 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 09:49:40,980 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:40,994 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,004 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 09:49:41,008 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 09:49:41,009 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 09:49:41,009 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 09:49:41,021 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,022 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,023 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,023 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,031 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,034 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,035 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... [2019-05-23 09:49:41,037 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 09:49:41,038 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 09:49:41,038 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 09:49:41,039 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 09:49:41,039 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 09:49:41,113 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 09:49:41,113 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 09:49:41,440 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 09:49:41,440 INFO L146 ILogger]: Removed 5 assume(true) statements. [2019-05-23 09:49:41,441 INFO L146 ILogger]: Adding new model string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:49:41 BoogieIcfgContainer [2019-05-23 09:49:41,442 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 09:49:41,442 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 09:49:41,443 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 09:49:41,444 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 09:49:41,447 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:49:41" (1/1) ... [2019-05-23 09:49:41,513 INFO L146 ILogger]: L52 [2019-05-23 09:49:41,514 INFO L146 ILogger]: In Formula: (and (= 0 (select v_ULTIMATE.start_main_~string_A~5_4 4)) (= v_ULTIMATE.start_main_~i~5_6 0) (not (< v_ULTIMATE.start_main_~i~5_7 5))) InVars {ULTIMATE.start_main_~string_A~5=v_ULTIMATE.start_main_~string_A~5_4, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_7} OutVars{ULTIMATE.start_main_~string_A~5=v_ULTIMATE.start_main_~string_A~5_4, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,514 INFO L146 ILogger]: Out Formula: (and (or (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_1 4) (not v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1)) (or (= v_v_ULTIMATE.start_main_~string_A~5_4_aux_1 v_ULTIMATE.start_main_~string_A~5_val_0_in_1) (not (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_1 4))) (= v_v_ULTIMATE.start_main_~string_A~5_4_aux_1 0) (= v_ULTIMATE.start_main_~i~5_6 0) (not (< v_ULTIMATE.start_main_~i~5_7 5)) v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1) InVars {ULTIMATE.start_main_~string_A~5_idx_0=v_ULTIMATE.start_main_~string_A~5_idx_0_term_1, ULTIMATE.start_main_~string_A~5_idx_0_bool=v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1, ULTIMATE.start_main_~string_A~5_val_0=v_ULTIMATE.start_main_~string_A~5_val_0_in_1, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_7} OutVars{ULTIMATE.start_main_~string_A~5_idx_0=v_ULTIMATE.start_main_~string_A~5_idx_0_term_1, ULTIMATE.start_main_~string_A~5_idx_0_bool=v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1, ULTIMATE.start_main_~string_A~5_val_0=v_ULTIMATE.start_main_~string_A~5_val_0_in_1, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_6} AuxVars[v_v_ULTIMATE.start_main_~string_A~5_4_aux_1] AssignedVars[ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,514 INFO L146 ILogger]: L87 [2019-05-23 09:49:41,520 INFO L146 ILogger]: L52 [2019-05-23 09:49:41,520 INFO L146 ILogger]: In Formula: (and (= (+ v_ULTIMATE.start_main_~i~5_9 1) v_ULTIMATE.start_main_~i~5_8) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet1_3| 128)) (< v_ULTIMATE.start_main_~i~5_9 5) (= v_ULTIMATE.start_main_~string_A~5_5 (store v_ULTIMATE.start_main_~string_A~5_6 v_ULTIMATE.start_main_~i~5_9 |v_ULTIMATE.start_main_#t~nondet1_3|)) (<= |v_ULTIMATE.start_main_#t~nondet1_3| 127)) InVars {ULTIMATE.start_main_~string_A~5=v_ULTIMATE.start_main_~string_A~5_6, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_9} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~string_A~5=v_ULTIMATE.start_main_~string_A~5_5, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~string_A~5, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,521 INFO L146 ILogger]: Out Formula: (and (= (+ v_ULTIMATE.start_main_~i~5_9 1) v_ULTIMATE.start_main_~i~5_8) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet1_3| 128)) (or (not (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_2 v_ULTIMATE.start_main_~i~5_9)) (= v_ULTIMATE.start_main_~string_A~5_val_0_in_2 |v_ULTIMATE.start_main_#t~nondet1_3|)) (< v_ULTIMATE.start_main_~i~5_9 5) (or (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_2 v_ULTIMATE.start_main_~i~5_9) (not v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1)) (= v_ULTIMATE.start_main_~string_A~5_val_0_out_1 v_ULTIMATE.start_main_~string_A~5_val_0_in_2) (<= |v_ULTIMATE.start_main_#t~nondet1_3| 127) v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1) InVars {ULTIMATE.start_main_~string_A~5_idx_0=v_ULTIMATE.start_main_~string_A~5_idx_0_term_2, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~string_A~5_idx_0_bool=v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1, ULTIMATE.start_main_~string_A~5_val_0=v_ULTIMATE.start_main_~string_A~5_val_0_in_2, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_9} OutVars{ULTIMATE.start_main_~string_A~5_idx_0=v_ULTIMATE.start_main_~string_A~5_idx_0_term_2, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~string_A~5_idx_0_bool=v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1, ULTIMATE.start_main_~string_A~5_val_0=v_ULTIMATE.start_main_~string_A~5_val_0_out_1, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_2|, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~string_A~5_val_0, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,521 INFO L146 ILogger]: L52 [2019-05-23 09:49:41,526 INFO L146 ILogger]: L87 [2019-05-23 09:49:41,527 INFO L146 ILogger]: In Formula: (and (= v_ULTIMATE.start_main_~i~5_10 v_ULTIMATE.start_main_~j~5_4) (not (< v_ULTIMATE.start_main_~i~5_11 5)) (= 0 (select v_ULTIMATE.start_main_~string_A~5_7 v_ULTIMATE.start_main_~nc_A~5_4)) (= 0 v_ULTIMATE.start___VERIFIER_assert_~cond_1) (= 0 (select v_ULTIMATE.start_main_~string_B~5_4 v_ULTIMATE.start_main_~nc_B~5_4)) (or (not (< v_ULTIMATE.start_main_~i~5_10 v_ULTIMATE.start_main_~nc_A~5_4)) (not (< v_ULTIMATE.start_main_~j~5_4 v_ULTIMATE.start_main_~nc_B~5_4))) (= v_ULTIMATE.start_main_~j~5_4 0) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1| (ite (or (= 0 v_ULTIMATE.start_main_~found~5_4) (= 1 v_ULTIMATE.start_main_~found~5_4)) 1 0)) (= v_ULTIMATE.start___VERIFIER_assert_~cond_1 |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|) (= (select v_ULTIMATE.start_main_~string_B~5_4 4) 0) (= v_ULTIMATE.start_main_~nc_A~5_4 0) (= v_ULTIMATE.start_main_~nc_B~5_4 0) (<= v_ULTIMATE.start_main_~nc_A~5_4 v_ULTIMATE.start_main_~nc_B~5_4)) InVars {ULTIMATE.start_main_~string_A~5=v_ULTIMATE.start_main_~string_A~5_7, ULTIMATE.start_main_~string_B~5=v_ULTIMATE.start_main_~string_B~5_4, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_11} OutVars{ULTIMATE.start_main_~nc_B~5=v_ULTIMATE.start_main_~nc_B~5_4, ULTIMATE.start_main_~string_A~5=v_ULTIMATE.start_main_~string_A~5_7, ULTIMATE.start_main_~nc_A~5=v_ULTIMATE.start_main_~nc_A~5_4, ULTIMATE.start___VERIFIER_assert_~cond=v_ULTIMATE.start___VERIFIER_assert_~cond_1, ULTIMATE.start_main_~found~5=v_ULTIMATE.start_main_~found~5_4, ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|, ULTIMATE.start_main_~string_B~5=v_ULTIMATE.start_main_~string_B~5_4, ULTIMATE.start_main_~j~5=v_ULTIMATE.start_main_~j~5_4, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~nc_B~5, ULTIMATE.start_main_~nc_A~5, ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_~found~5, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~j~5, ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,529 INFO L146 ILogger]: Out Formula: (and (or (and (= v_ULTIMATE.start_main_~i~5_10 v_ULTIMATE.start_main_~j~5_4) (or (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 v_ULTIMATE.start_main_~nc_B~5_4) (not v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1) (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 v_ULTIMATE.start_main_~nc_A~5_4) (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 4)) (not (< v_ULTIMATE.start_main_~i~5_11 5)) (= 0 v_ULTIMATE.start___VERIFIER_assert_~cond_1) (not (< v_ULTIMATE.start_main_~i~5_10 v_ULTIMATE.start_main_~nc_A~5_4)) (= 0 v_v_ULTIMATE.start_main_~string_B~5_4_aux_2) (= v_ULTIMATE.start_main_~j~5_4 0) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1| (ite (or (= 0 v_ULTIMATE.start_main_~found~5_4) (= 1 v_ULTIMATE.start_main_~found~5_4)) 1 0)) v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1 (= v_ULTIMATE.start___VERIFIER_assert_~cond_1 |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|) (= 0 v_v_ULTIMATE.start_main_~string_B~5_4_aux_1) (= v_ULTIMATE.start_main_~nc_A~5_4 0) (= v_ULTIMATE.start_main_~nc_B~5_4 0) (or (not v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1) (= v_ULTIMATE.start_main_~nc_A~5_4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3) (= 4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3) (= v_ULTIMATE.start_main_~nc_B~5_4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3)) (= 0 v_v_ULTIMATE.start_main_~string_A~5_7_aux_1) (<= v_ULTIMATE.start_main_~nc_A~5_4 v_ULTIMATE.start_main_~nc_B~5_4) v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1) (and (= v_ULTIMATE.start_main_~i~5_10 v_ULTIMATE.start_main_~j~5_4) (or (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 v_ULTIMATE.start_main_~nc_B~5_4) (not v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1) (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 v_ULTIMATE.start_main_~nc_A~5_4) (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 4)) (not (< v_ULTIMATE.start_main_~i~5_11 5)) (= 0 v_ULTIMATE.start___VERIFIER_assert_~cond_1) (= 0 v_v_ULTIMATE.start_main_~string_B~5_4_aux_2) (= v_ULTIMATE.start_main_~j~5_4 0) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1| (ite (or (= 0 v_ULTIMATE.start_main_~found~5_4) (= 1 v_ULTIMATE.start_main_~found~5_4)) 1 0)) v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1 (= v_ULTIMATE.start___VERIFIER_assert_~cond_1 |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|) (= 0 v_v_ULTIMATE.start_main_~string_B~5_4_aux_1) (= v_ULTIMATE.start_main_~nc_A~5_4 0) (not (< v_ULTIMATE.start_main_~j~5_4 v_ULTIMATE.start_main_~nc_B~5_4)) (= v_ULTIMATE.start_main_~nc_B~5_4 0) (or (not v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1) (= v_ULTIMATE.start_main_~nc_A~5_4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3) (= 4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3) (= v_ULTIMATE.start_main_~nc_B~5_4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3)) (= 0 v_v_ULTIMATE.start_main_~string_A~5_7_aux_1) (<= v_ULTIMATE.start_main_~nc_A~5_4 v_ULTIMATE.start_main_~nc_B~5_4) v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1)) (or (= v_ULTIMATE.start_main_~string_A~5_val_0_in_3 v_v_ULTIMATE.start_main_~string_A~5_7_aux_1) (not (= v_ULTIMATE.start_main_~string_A~5_idx_0_term_3 v_ULTIMATE.start_main_~nc_A~5_4))) (or (not (= 4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3)) (= v_ULTIMATE.start_main_~string_B~5_val_0_in_1 v_v_ULTIMATE.start_main_~string_B~5_4_aux_2)) (or (= v_ULTIMATE.start_main_~string_B~5_val_0_in_1 v_v_ULTIMATE.start_main_~string_B~5_4_aux_1) (not (= v_ULTIMATE.start_main_~nc_B~5_4 v_ULTIMATE.start_main_~string_B~5_idx_0_term_3)))) InVars {ULTIMATE.start_main_~string_A~5_idx_0=v_ULTIMATE.start_main_~string_A~5_idx_0_term_3, ULTIMATE.start_main_~string_A~5_idx_0_bool=v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1, ULTIMATE.start_main_~string_B~5_idx_0=v_ULTIMATE.start_main_~string_B~5_idx_0_term_3, ULTIMATE.start_main_~string_A~5_val_0=v_ULTIMATE.start_main_~string_A~5_val_0_in_3, ULTIMATE.start_main_~string_B~5_val_0=v_ULTIMATE.start_main_~string_B~5_val_0_in_1, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_11, ULTIMATE.start_main_~string_B~5_idx_0_bool=v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1} OutVars{ULTIMATE.start_main_~nc_A~5=v_ULTIMATE.start_main_~nc_A~5_4, ULTIMATE.start___VERIFIER_assert_~cond=v_ULTIMATE.start___VERIFIER_assert_~cond_1, ULTIMATE.start_main_~string_B~5_idx_0=v_ULTIMATE.start_main_~string_B~5_idx_0_term_3, ULTIMATE.start_main_~found~5=v_ULTIMATE.start_main_~found~5_4, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_10, ULTIMATE.start_main_~string_B~5_idx_0_bool=v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1, ULTIMATE.start_main_~nc_B~5=v_ULTIMATE.start_main_~nc_B~5_4, ULTIMATE.start_main_~string_A~5_idx_0=v_ULTIMATE.start_main_~string_A~5_idx_0_term_3, ULTIMATE.start_main_~string_A~5_idx_0_bool=v_ULTIMATE.start_main_~string_A~5_idx_0_term_assigned_1, ULTIMATE.start_main_~string_A~5_val_0=v_ULTIMATE.start_main_~string_A~5_val_0_in_3, ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|, ULTIMATE.start_main_~j~5=v_ULTIMATE.start_main_~j~5_4, ULTIMATE.start_main_~string_B~5_val_0=v_ULTIMATE.start_main_~string_B~5_val_0_in_1} AuxVars[v_v_ULTIMATE.start_main_~string_B~5_4_aux_1, v_v_ULTIMATE.start_main_~string_B~5_4_aux_2, v_v_ULTIMATE.start_main_~string_A~5_7_aux_1] AssignedVars[ULTIMATE.start_main_~nc_B~5, ULTIMATE.start_main_~nc_A~5, ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_~found~5, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~j~5, ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,529 INFO L146 ILogger]: L78 [2019-05-23 09:49:41,535 INFO L146 ILogger]: L87 [2019-05-23 09:49:41,539 INFO L146 ILogger]: In Formula: (and (= (+ v_ULTIMATE.start_main_~i~5_13 1) v_ULTIMATE.start_main_~i~5_12) (<= |v_ULTIMATE.start_main_#t~nondet3_3| 127) (< v_ULTIMATE.start_main_~i~5_13 5) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet3_3| 128)) (= v_ULTIMATE.start_main_~string_B~5_5 (store v_ULTIMATE.start_main_~string_B~5_6 v_ULTIMATE.start_main_~i~5_13 |v_ULTIMATE.start_main_#t~nondet3_3|))) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, ULTIMATE.start_main_~string_B~5=v_ULTIMATE.start_main_~string_B~5_6, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_13} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~string_B~5=v_ULTIMATE.start_main_~string_B~5_5, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~string_B~5, ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,539 INFO L146 ILogger]: Out Formula: (and (= v_ULTIMATE.start_main_~string_B~5_val_0_in_2 v_ULTIMATE.start_main_~string_B~5_val_0_out_1) (= (+ v_ULTIMATE.start_main_~i~5_13 1) v_ULTIMATE.start_main_~i~5_12) (or (not (= v_ULTIMATE.start_main_~i~5_13 v_ULTIMATE.start_main_~string_B~5_idx_0_term_4)) (= v_ULTIMATE.start_main_~string_B~5_val_0_in_2 |v_ULTIMATE.start_main_#t~nondet3_3|)) (<= |v_ULTIMATE.start_main_#t~nondet3_3| 127) (< v_ULTIMATE.start_main_~i~5_13 5) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet3_3| 128)) (or (not v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1) (= v_ULTIMATE.start_main_~i~5_13 v_ULTIMATE.start_main_~string_B~5_idx_0_term_4)) v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1) InVars {ULTIMATE.start_main_~string_B~5_idx_0=v_ULTIMATE.start_main_~string_B~5_idx_0_term_4, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, ULTIMATE.start_main_~string_B~5_val_0=v_ULTIMATE.start_main_~string_B~5_val_0_in_2, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_13, ULTIMATE.start_main_~string_B~5_idx_0_bool=v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1} OutVars{ULTIMATE.start_main_~string_B~5_idx_0=v_ULTIMATE.start_main_~string_B~5_idx_0_term_4, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~string_B~5_val_0=v_ULTIMATE.start_main_~string_B~5_val_0_out_1, ULTIMATE.start_main_~i~5=v_ULTIMATE.start_main_~i~5_12, ULTIMATE.start_main_~string_B~5_idx_0_bool=v_ULTIMATE.start_main_~string_B~5_idx_0_term_assigned_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~string_B~5_val_0, ULTIMATE.start_main_~i~5] [2019-05-23 09:49:41,540 INFO L146 ILogger]: L87 [2019-05-23 09:49:41,558 INFO L146 ILogger]: Adding new model string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:49:41 BasicIcfg [2019-05-23 09:49:41,562 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 09:49:41,564 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 09:49:41,567 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 09:49:41,573 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 09:49:41,574 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:40" (1/3) ... [2019-05-23 09:49:41,575 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56db9499 and model type string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 09:49:41, skipping insertion in model container [2019-05-23 09:49:41,575 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:49:41" (2/3) ... [2019-05-23 09:49:41,579 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56db9499 and model type string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:49:41, skipping insertion in model container [2019-05-23 09:49:41,580 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:49:41" (3/3) ... [2019-05-23 09:49:41,586 INFO L146 ILogger]: Analyzing ICFG string.i_3.bplME [2019-05-23 09:49:41,606 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 09:49:41,620 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 09:49:41,638 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 09:49:41,669 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 09:49:41,670 INFO L146 ILogger]: Interprodecural is true [2019-05-23 09:49:41,670 INFO L146 ILogger]: Hoare is false [2019-05-23 09:49:41,670 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 09:49:41,670 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 09:49:41,671 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 09:49:41,671 INFO L146 ILogger]: Difference is false [2019-05-23 09:49:41,671 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 09:49:41,671 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 09:49:41,692 INFO L146 ILogger]: Start isEmpty. Operand 6 states. [2019-05-23 09:49:41,701 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 5 [2019-05-23 09:49:41,701 INFO L146 ILogger]: Found error trace [2019-05-23 09:49:41,702 INFO L146 ILogger]: trace histogram [1, 1, 1, 1] [2019-05-23 09:49:41,706 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:49:41,712 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:49:41,713 INFO L146 ILogger]: Analyzing trace with hash 1540260, now seen corresponding path program 1 times [2019-05-23 09:49:41,760 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:49:41,815 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:49:41,819 INFO L146 ILogger]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 09:49:41,823 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:49:41,878 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:49:41,881 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:49:41,881 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 09:49:41,886 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 09:49:41,901 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 09:49:41,902 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:49:41,905 INFO L146 ILogger]: Start difference. First operand 6 states. Second operand 3 states. [2019-05-23 09:49:42,006 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:49:42,006 INFO L146 ILogger]: Finished difference Result 7 states and 8 transitions. [2019-05-23 09:49:42,007 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 09:49:42,008 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 4 [2019-05-23 09:49:42,009 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:49:42,019 INFO L146 ILogger]: With dead ends: 7 [2019-05-23 09:49:42,019 INFO L146 ILogger]: Without dead ends: 7 [2019-05-23 09:49:42,021 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:49:42,042 INFO L146 ILogger]: Start minimizeSevpa. Operand 7 states. [2019-05-23 09:49:42,054 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-05-23 09:49:42,056 INFO L146 ILogger]: Start removeUnreachable. Operand 7 states. [2019-05-23 09:49:42,056 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-05-23 09:49:42,058 INFO L146 ILogger]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 4 [2019-05-23 09:49:42,058 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:49:42,058 INFO L146 ILogger]: Abstraction has 7 states and 8 transitions. [2019-05-23 09:49:42,059 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 09:49:42,059 INFO L146 ILogger]: Start isEmpty. Operand 7 states and 8 transitions. [2019-05-23 09:49:42,059 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 7 [2019-05-23 09:49:42,059 INFO L146 ILogger]: Found error trace [2019-05-23 09:49:42,060 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1] [2019-05-23 09:49:42,060 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:49:42,060 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:49:42,061 INFO L146 ILogger]: Analyzing trace with hash 1481053576, now seen corresponding path program 1 times [2019-05-23 09:49:42,062 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:49:42,076 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:49:42,078 INFO L146 ILogger]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 09:49:42,079 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:49:42,122 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 09:49:42,122 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:49:42,123 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-05-23 09:49:42,124 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:49:42,125 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:49:42,125 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:49:42,126 INFO L146 ILogger]: Start difference. First operand 7 states and 8 transitions. Second operand 4 states. [2019-05-23 09:49:42,201 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:49:42,202 INFO L146 ILogger]: Finished difference Result 9 states and 10 transitions. [2019-05-23 09:49:42,203 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 09:49:42,203 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 6 [2019-05-23 09:49:42,203 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:49:42,204 INFO L146 ILogger]: With dead ends: 9 [2019-05-23 09:49:42,204 INFO L146 ILogger]: Without dead ends: 9 [2019-05-23 09:49:42,206 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:49:42,206 INFO L146 ILogger]: Start minimizeSevpa. Operand 9 states. [2019-05-23 09:49:42,207 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-05-23 09:49:42,207 INFO L146 ILogger]: Start removeUnreachable. Operand 9 states. [2019-05-23 09:49:42,208 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-05-23 09:49:42,208 INFO L146 ILogger]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2019-05-23 09:49:42,208 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:49:42,208 INFO L146 ILogger]: Abstraction has 9 states and 10 transitions. [2019-05-23 09:49:42,209 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:49:42,209 INFO L146 ILogger]: Start isEmpty. Operand 9 states and 10 transitions. [2019-05-23 09:49:42,209 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 9 [2019-05-23 09:49:42,209 INFO L146 ILogger]: Found error trace [2019-05-23 09:49:42,210 INFO L146 ILogger]: trace histogram [2, 2, 1, 1, 1, 1] [2019-05-23 09:49:42,210 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:49:42,210 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:49:42,210 INFO L146 ILogger]: Analyzing trace with hash 1684199716, now seen corresponding path program 2 times [2019-05-23 09:49:42,211 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:49:42,225 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:49:42,226 INFO L146 ILogger]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 09:49:42,228 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:49:42,353 INFO L146 ILogger]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 09:49:42,353 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:49:42,353 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-05-23 09:49:42,354 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:49:42,354 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:49:42,355 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:49:42,355 INFO L146 ILogger]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2019-05-23 09:49:42,398 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:49:42,398 INFO L146 ILogger]: Finished difference Result 4 states and 4 transitions. [2019-05-23 09:49:42,399 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 09:49:42,399 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 8 [2019-05-23 09:49:42,399 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:49:42,399 INFO L146 ILogger]: With dead ends: 4 [2019-05-23 09:49:42,399 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 09:49:42,400 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:49:42,400 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 09:49:42,400 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 09:49:42,400 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 09:49:42,401 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 09:49:42,401 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-05-23 09:49:42,401 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:49:42,401 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 09:49:42,402 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:49:42,402 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 09:49:42,402 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 09:49:42,406 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 09:49:42,408 INFO L146 ILogger]: Adding new model string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:49:42 BasicIcfg [2019-05-23 09:49:42,408 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 09:49:42,410 INFO L146 ILogger]: Toolchain (without parser) took 1447.48 ms. Allocated memory was 140.5 MB in the beginning and 176.2 MB in the end (delta: 35.7 MB). Free memory was 108.6 MB in the beginning and 142.9 MB in the end (delta: -34.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:42,411 INFO L146 ILogger]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-05-23 09:49:42,412 INFO L146 ILogger]: Boogie Procedure Inliner took 44.83 ms. Allocated memory is still 140.5 MB. Free memory was 108.6 MB in the beginning and 106.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:42,413 INFO L146 ILogger]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 140.5 MB. Free memory was 106.9 MB in the beginning and 105.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:42,414 INFO L146 ILogger]: RCFGBuilder took 403.89 ms. Allocated memory is still 140.5 MB. Free memory was 105.6 MB in the beginning and 95.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:42,415 INFO L146 ILogger]: IcfgTransformer took 119.56 ms. Allocated memory is still 140.5 MB. Free memory was 95.4 MB in the beginning and 91.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:42,416 INFO L146 ILogger]: TraceAbstraction took 844.67 ms. Allocated memory was 140.5 MB in the beginning and 176.2 MB in the end (delta: 35.7 MB). Free memory was 90.8 MB in the beginning and 142.9 MB in the end (delta: -52.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-05-23 09:49:42,420 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.83 ms. Allocated memory is still 140.5 MB. Free memory was 108.6 MB in the beginning and 106.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 140.5 MB. Free memory was 106.9 MB in the beginning and 105.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.89 ms. Allocated memory is still 140.5 MB. Free memory was 105.6 MB in the beginning and 95.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * IcfgTransformer took 119.56 ms. Allocated memory is still 140.5 MB. Free memory was 95.4 MB in the beginning and 91.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 844.67 ms. Allocated memory was 140.5 MB in the beginning and 176.2 MB in the end (delta: 35.7 MB). Free memory was 90.8 MB in the beginning and 142.9 MB in the end (delta: -52.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 89]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 2 SDslu, 1 SDs, 0 SdLazy, 18 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 2 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 5/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...