java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:19:36,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:19:36,015 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:19:36,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:19:36,029 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:19:36,030 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:19:36,031 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:19:36,036 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:19:36,037 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:19:36,038 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:19:36,039 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:19:36,040 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:19:36,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:19:36,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:19:36,043 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:19:36,044 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:19:36,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:19:36,046 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:19:36,048 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:19:36,053 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:19:36,056 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:19:36,058 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:19:36,062 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:19:36,062 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:19:36,062 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:19:36,064 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:19:36,065 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:19:36,066 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:19:36,067 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:19:36,071 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:19:36,071 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:19:36,072 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:19:36,072 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:19:36,073 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:19:36,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:19:36,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:19:36,077 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:19:36,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:19:36,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:19:36,104 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:19:36,105 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:19:36,105 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:19:36,105 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:19:36,105 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:19:36,105 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:19:36,106 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:19:36,106 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:19:36,106 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:19:36,107 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:19:36,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:19:36,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:19:36,108 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:19:36,108 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:19:36,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:19:36,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:19:36,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:19:36,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:19:36,109 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:19:36,109 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:19:36,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:19:36,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:19:36,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:19:36,110 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:19:36,110 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:19:36,110 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:19:36,110 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:19:36,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:19:36,111 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:19:36,111 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:19:36,111 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:19:36,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:19:36,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:19:36,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:19:36,202 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:19:36,203 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:19:36,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label27_true-unreach-call.c [2018-07-24 14:19:36,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93986f2c/056c889d50a04a278fb7f459b107c83d/FLAGf2c427fac [2018-07-24 14:19:37,044 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:19:37,046 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label27_true-unreach-call.c [2018-07-24 14:19:37,102 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93986f2c/056c889d50a04a278fb7f459b107c83d/FLAGf2c427fac [2018-07-24 14:19:37,125 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93986f2c/056c889d50a04a278fb7f459b107c83d [2018-07-24 14:19:37,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:19:37,141 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:19:37,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:19:37,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:19:37,153 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:19:37,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:19:37" (1/1) ... [2018-07-24 14:19:37,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10293615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:37, skipping insertion in model container [2018-07-24 14:19:37,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:19:37" (1/1) ... [2018-07-24 14:19:37,590 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:19:38,907 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:19:38,931 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:19:39,734 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:19:40,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40 WrapperNode [2018-07-24 14:19:40,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:19:40,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:19:40,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:19:40,064 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:19:40,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:40,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:40,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:19:40,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:19:40,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:19:40,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:19:41,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (1/1) ... [2018-07-24 14:19:41,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:19:41,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:19:41,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:19:41,801 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:19:41,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (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: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 [2018-07-24 14:19:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:19:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:19:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:19:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:19:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:19:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:19:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:19:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:19:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:19:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:19:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:19:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:19:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:19:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:19:56,031 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:19:56,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:19:56 BoogieIcfgContainer [2018-07-24 14:19:56,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:19:56,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:19:56,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:19:56,036 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:19:56,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:19:37" (1/3) ... [2018-07-24 14:19:56,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142c7676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:19:56, skipping insertion in model container [2018-07-24 14:19:56,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:40" (2/3) ... [2018-07-24 14:19:56,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142c7676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:19:56, skipping insertion in model container [2018-07-24 14:19:56,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:19:56" (3/3) ... [2018-07-24 14:19:56,040 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label27_true-unreach-call.c [2018-07-24 14:19:56,048 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:19:56,059 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:19:56,136 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:19:56,137 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:19:56,137 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:19:56,137 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:19:56,138 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:19:56,138 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:19:56,138 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:19:56,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:19:56,138 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:19:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:19:56,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-24 14:19:56,208 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:56,210 INFO L353 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] [2018-07-24 14:19:56,211 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:56,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1018133508, now seen corresponding path program 1 times [2018-07-24 14:19:56,220 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:56,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:56,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:56,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:56,276 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:19:56,702 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:19:56,703 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:19:56,703 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:56,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:19:56,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:19:56,725 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:56,727 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-24 14:20:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:12,484 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-07-24 14:20:12,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:20:12,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-07-24 14:20:12,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:12,544 INFO L225 Difference]: With dead ends: 3968 [2018-07-24 14:20:12,544 INFO L226 Difference]: Without dead ends: 2842 [2018-07-24 14:20:12,566 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:20:12,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-07-24 14:20:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-07-24 14:20:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-07-24 14:20:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-07-24 14:20:12,783 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 52 [2018-07-24 14:20:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:12,784 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-07-24 14:20:12,784 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:20:12,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-07-24 14:20:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-24 14:20:12,799 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:12,799 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2018-07-24 14:20:12,800 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:20:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1713454088, now seen corresponding path program 1 times [2018-07-24 14:20:12,800 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:12,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:12,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:12,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:12,804 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:13,387 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:13,387 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:20:13,387 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:13,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:20:13,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:20:13,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:20:13,391 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 6 states. [2018-07-24 14:20:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:32,335 INFO L93 Difference]: Finished difference Result 7236 states and 13035 transitions. [2018-07-24 14:20:32,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:20:32,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-07-24 14:20:32,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:32,370 INFO L225 Difference]: With dead ends: 7236 [2018-07-24 14:20:32,370 INFO L226 Difference]: Without dead ends: 5261 [2018-07-24 14:20:32,383 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:20:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2018-07-24 14:20:32,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5234. [2018-07-24 14:20:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5234 states. [2018-07-24 14:20:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 8155 transitions. [2018-07-24 14:20:32,658 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 8155 transitions. Word has length 122 [2018-07-24 14:20:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:32,659 INFO L471 AbstractCegarLoop]: Abstraction has 5234 states and 8155 transitions. [2018-07-24 14:20:32,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:20:32,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 8155 transitions. [2018-07-24 14:20:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-24 14:20:32,671 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:32,671 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:20:32,671 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:20:32,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2040808108, now seen corresponding path program 1 times [2018-07-24 14:20:32,672 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:32,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:32,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:32,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:32,676 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:32,899 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:32,899 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:20:32,899 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:32,900 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:20:32,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:20:32,903 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:20:32,903 INFO L87 Difference]: Start difference. First operand 5234 states and 8155 transitions. Second operand 6 states. [2018-07-24 14:20:33,999 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-24 14:20:54,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:54,459 INFO L93 Difference]: Finished difference Result 16620 states and 27132 transitions. [2018-07-24 14:20:54,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 14:20:54,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-07-24 14:20:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:54,527 INFO L225 Difference]: With dead ends: 16620 [2018-07-24 14:20:54,527 INFO L226 Difference]: Without dead ends: 11392 [2018-07-24 14:20:54,552 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:20:54,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2018-07-24 14:20:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 11315. [2018-07-24 14:20:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11315 states. [2018-07-24 14:20:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11315 states to 11315 states and 16080 transitions. [2018-07-24 14:20:54,893 INFO L78 Accepts]: Start accepts. Automaton has 11315 states and 16080 transitions. Word has length 124 [2018-07-24 14:20:54,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:54,894 INFO L471 AbstractCegarLoop]: Abstraction has 11315 states and 16080 transitions. [2018-07-24 14:20:54,894 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:20:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 11315 states and 16080 transitions. [2018-07-24 14:20:54,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-24 14:20:54,900 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:54,900 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:20:54,900 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:20:54,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1435667527, now seen corresponding path program 1 times [2018-07-24 14:20:54,901 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:54,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:54,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:54,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:54,903 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:55,210 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:20:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:55,392 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:55,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:20:55,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:55,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:20:55,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:20:55,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:20:55,394 INFO L87 Difference]: Start difference. First operand 11315 states and 16080 transitions. Second operand 6 states. [2018-07-24 14:21:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:08,179 INFO L93 Difference]: Finished difference Result 33998 states and 52586 transitions. [2018-07-24 14:21:08,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:21:08,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-07-24 14:21:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:08,302 INFO L225 Difference]: With dead ends: 33998 [2018-07-24 14:21:08,303 INFO L226 Difference]: Without dead ends: 22689 [2018-07-24 14:21:08,368 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:21:08,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22689 states. [2018-07-24 14:21:08,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22689 to 22388. [2018-07-24 14:21:08,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22388 states. [2018-07-24 14:21:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22388 states to 22388 states and 32214 transitions. [2018-07-24 14:21:08,978 INFO L78 Accepts]: Start accepts. Automaton has 22388 states and 32214 transitions. Word has length 135 [2018-07-24 14:21:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:08,978 INFO L471 AbstractCegarLoop]: Abstraction has 22388 states and 32214 transitions. [2018-07-24 14:21:08,978 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:21:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 22388 states and 32214 transitions. [2018-07-24 14:21:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-24 14:21:08,983 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:08,984 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:21:08,984 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:21:08,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1623757476, now seen corresponding path program 1 times [2018-07-24 14:21:08,987 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:08,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:08,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:08,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:08,989 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:21:09,159 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:21:09,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:21:09,159 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:09,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:21:09,160 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:21:09,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:21:09,161 INFO L87 Difference]: Start difference. First operand 22388 states and 32214 transitions. Second operand 3 states. [2018-07-24 14:21:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:17,531 INFO L93 Difference]: Finished difference Result 44772 states and 64601 transitions. [2018-07-24 14:21:17,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:21:17,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2018-07-24 14:21:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:17,623 INFO L225 Difference]: With dead ends: 44772 [2018-07-24 14:21:17,623 INFO L226 Difference]: Without dead ends: 22390 [2018-07-24 14:21:17,681 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:21:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22390 states. [2018-07-24 14:21:18,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22390 to 22371. [2018-07-24 14:21:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22371 states. [2018-07-24 14:21:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22371 states to 22371 states and 29249 transitions. [2018-07-24 14:21:18,139 INFO L78 Accepts]: Start accepts. Automaton has 22371 states and 29249 transitions. Word has length 168 [2018-07-24 14:21:18,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:18,140 INFO L471 AbstractCegarLoop]: Abstraction has 22371 states and 29249 transitions. [2018-07-24 14:21:18,140 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:21:18,140 INFO L276 IsEmpty]: Start isEmpty. Operand 22371 states and 29249 transitions. [2018-07-24 14:21:18,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-24 14:21:18,147 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:18,147 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:21:18,147 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:21:18,147 INFO L82 PathProgramCache]: Analyzing trace with hash -332098726, now seen corresponding path program 1 times [2018-07-24 14:21:18,148 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:18,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:18,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:18,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:18,149 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:21:18,375 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:21:18,375 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:21:18,375 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:18,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:21:18,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:21:18,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:21:18,376 INFO L87 Difference]: Start difference. First operand 22371 states and 29249 transitions. Second operand 4 states. [2018-07-24 14:21:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:29,750 INFO L93 Difference]: Finished difference Result 64552 states and 89363 transitions. [2018-07-24 14:21:29,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:21:29,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2018-07-24 14:21:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:29,898 INFO L225 Difference]: With dead ends: 64552 [2018-07-24 14:21:29,898 INFO L226 Difference]: Without dead ends: 42187 [2018-07-24 14:21:29,949 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:21:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42187 states. [2018-07-24 14:21:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42187 to 42183. [2018-07-24 14:21:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42183 states. [2018-07-24 14:21:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42183 states to 42183 states and 55622 transitions. [2018-07-24 14:21:30,705 INFO L78 Accepts]: Start accepts. Automaton has 42183 states and 55622 transitions. Word has length 173 [2018-07-24 14:21:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:30,706 INFO L471 AbstractCegarLoop]: Abstraction has 42183 states and 55622 transitions. [2018-07-24 14:21:30,706 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:21:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 42183 states and 55622 transitions. [2018-07-24 14:21:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-07-24 14:21:30,717 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:30,718 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:21:30,718 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:21:30,718 INFO L82 PathProgramCache]: Analyzing trace with hash 480371756, now seen corresponding path program 1 times [2018-07-24 14:21:30,719 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:30,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:30,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:30,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:30,720 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 90 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:21:31,066 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:21:31,067 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:21:31,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:31,091 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:21:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:31,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:21:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-24 14:21:31,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:21:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 90 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:21:32,010 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:21:32,010 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 14:21:32,010 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:32,011 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:21:32,012 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:21:32,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:21:32,012 INFO L87 Difference]: Start difference. First operand 42183 states and 55622 transitions. Second operand 5 states. [2018-07-24 14:21:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:51,983 INFO L93 Difference]: Finished difference Result 122870 states and 174778 transitions. [2018-07-24 14:21:51,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:21:51,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2018-07-24 14:21:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:52,381 INFO L225 Difference]: With dead ends: 122870 [2018-07-24 14:21:52,381 INFO L226 Difference]: Without dead ends: 80693 [2018-07-24 14:21:52,636 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 454 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:21:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80693 states. [2018-07-24 14:21:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80693 to 79427. [2018-07-24 14:21:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79427 states. [2018-07-24 14:21:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79427 states to 79427 states and 108584 transitions. [2018-07-24 14:21:54,747 INFO L78 Accepts]: Start accepts. Automaton has 79427 states and 108584 transitions. Word has length 228 [2018-07-24 14:21:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:54,748 INFO L471 AbstractCegarLoop]: Abstraction has 79427 states and 108584 transitions. [2018-07-24 14:21:54,748 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:21:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 79427 states and 108584 transitions. [2018-07-24 14:21:54,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-07-24 14:21:54,760 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:54,760 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:21:54,760 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:21:54,761 INFO L82 PathProgramCache]: Analyzing trace with hash 234377704, now seen corresponding path program 1 times [2018-07-24 14:21:54,761 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:54,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:54,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:54,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:54,762 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 90 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:21:55,115 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:21:55,115 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:21:55,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:55,123 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:21:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:55,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:21:55,410 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-24 14:21:55,411 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:21:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 90 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:21:55,633 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:21:55,634 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 14:21:55,634 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:55,634 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:21:55,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:21:55,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:21:55,635 INFO L87 Difference]: Start difference. First operand 79427 states and 108584 transitions. Second operand 5 states. [2018-07-24 14:22:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:16,045 INFO L93 Difference]: Finished difference Result 197114 states and 293146 transitions. [2018-07-24 14:22:16,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:22:16,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2018-07-24 14:22:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:16,525 INFO L225 Difference]: With dead ends: 197114 [2018-07-24 14:22:16,526 INFO L226 Difference]: Without dead ends: 117693 [2018-07-24 14:22:16,683 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 458 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:22:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117693 states. [2018-07-24 14:22:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117693 to 117120. [2018-07-24 14:22:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117120 states. [2018-07-24 14:22:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117120 states to 117120 states and 169227 transitions. [2018-07-24 14:22:19,192 INFO L78 Accepts]: Start accepts. Automaton has 117120 states and 169227 transitions. Word has length 230 [2018-07-24 14:22:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:19,193 INFO L471 AbstractCegarLoop]: Abstraction has 117120 states and 169227 transitions. [2018-07-24 14:22:19,193 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:22:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 117120 states and 169227 transitions. [2018-07-24 14:22:19,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-24 14:22:19,205 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:19,205 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2018-07-24 14:22:19,206 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:22:19,206 INFO L82 PathProgramCache]: Analyzing trace with hash 936256856, now seen corresponding path program 1 times [2018-07-24 14:22:19,206 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:19,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:19,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:19,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:19,207 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 14:22:19,424 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:22:19,424 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:22:19,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:19,438 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:22:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:19,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:22:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 14:22:19,761 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:22:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:22:20,977 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:22:20,977 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:22:20,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:20,995 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:22:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:21,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:22:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 14:22:21,396 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:22:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 14:22:21,673 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:22:21,674 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 7, 8, 5] total 17 [2018-07-24 14:22:21,674 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:22:21,675 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:22:21,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:22:21,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:22:21,676 INFO L87 Difference]: Start difference. First operand 117120 states and 169227 transitions. Second operand 5 states. [2018-07-24 14:22:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:32,354 INFO L93 Difference]: Finished difference Result 234829 states and 342263 transitions. [2018-07-24 14:22:32,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:22:32,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2018-07-24 14:22:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:32,768 INFO L225 Difference]: With dead ends: 234829 [2018-07-24 14:22:32,769 INFO L226 Difference]: Without dead ends: 117715 [2018-07-24 14:22:33,907 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 959 GetRequests, 936 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:22:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117715 states. [2018-07-24 14:22:35,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117715 to 117593. [2018-07-24 14:22:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117593 states. [2018-07-24 14:22:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117593 states to 117593 states and 149359 transitions. [2018-07-24 14:22:35,527 INFO L78 Accepts]: Start accepts. Automaton has 117593 states and 149359 transitions. Word has length 238 [2018-07-24 14:22:35,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:35,529 INFO L471 AbstractCegarLoop]: Abstraction has 117593 states and 149359 transitions. [2018-07-24 14:22:35,529 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:22:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 117593 states and 149359 transitions. [2018-07-24 14:22:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-07-24 14:22:35,553 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:35,553 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:22:35,554 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:22:35,554 INFO L82 PathProgramCache]: Analyzing trace with hash -124333094, now seen corresponding path program 1 times [2018-07-24 14:22:35,554 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:35,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:35,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:35,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:35,555 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 135 proven. 140 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-24 14:22:35,851 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:22:35,851 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:22:35,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:35,860 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:22:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:35,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:22:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-07-24 14:22:36,555 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:22:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 135 proven. 140 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-24 14:22:36,915 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:22:36,915 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-07-24 14:22:36,915 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:22:36,916 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:22:36,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:22:36,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:22:36,917 INFO L87 Difference]: Start difference. First operand 117593 states and 149359 transitions. Second operand 5 states. [2018-07-24 14:22:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:53,957 INFO L93 Difference]: Finished difference Result 290663 states and 383170 transitions. [2018-07-24 14:22:53,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:22:53,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2018-07-24 14:22:53,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:55,632 INFO L225 Difference]: With dead ends: 290663 [2018-07-24 14:22:55,632 INFO L226 Difference]: Without dead ends: 173880 [2018-07-24 14:22:55,759 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 639 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:22:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173880 states. [2018-07-24 14:22:58,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173880 to 173409. [2018-07-24 14:22:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173409 states. [2018-07-24 14:22:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173409 states to 173409 states and 214622 transitions. [2018-07-24 14:22:59,079 INFO L78 Accepts]: Start accepts. Automaton has 173409 states and 214622 transitions. Word has length 322 [2018-07-24 14:22:59,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:59,080 INFO L471 AbstractCegarLoop]: Abstraction has 173409 states and 214622 transitions. [2018-07-24 14:22:59,080 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:22:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 173409 states and 214622 transitions. [2018-07-24 14:22:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-07-24 14:22:59,096 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:59,096 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:22:59,096 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:22:59,097 INFO L82 PathProgramCache]: Analyzing trace with hash 295644586, now seen corresponding path program 1 times [2018-07-24 14:22:59,097 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:59,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:59,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:59,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:59,098 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 135 proven. 150 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 14:22:59,618 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:22:59,618 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:22:59,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:59,632 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:22:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:59,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:22:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-07-24 14:22:59,859 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:23:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 135 proven. 150 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 14:23:00,111 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:23:00,111 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2018-07-24 14:23:00,111 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:23:00,112 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:23:00,112 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:23:00,112 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:23:00,113 INFO L87 Difference]: Start difference. First operand 173409 states and 214622 transitions. Second operand 5 states. [2018-07-24 14:23:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:23:18,712 INFO L93 Difference]: Finished difference Result 378219 states and 465418 transitions. [2018-07-24 14:23:18,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:23:18,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2018-07-24 14:23:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:23:19,231 INFO L225 Difference]: With dead ends: 378219 [2018-07-24 14:23:19,231 INFO L226 Difference]: Without dead ends: 192139 [2018-07-24 14:23:20,671 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 663 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:23:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192139 states. Received shutdown request... [2018-07-24 14:23:27,596 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:23:27,603 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:23:27,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:23:27 BoogieIcfgContainer [2018-07-24 14:23:27,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:23:27,605 INFO L168 Benchmark]: Toolchain (without parser) took 230464.29 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-07-24 14:23:27,606 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:23:27,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2920.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:27,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 344.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:27,608 INFO L168 Benchmark]: Boogie Preprocessor took 1392.09 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:27,609 INFO L168 Benchmark]: RCFGBuilder took 14231.46 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 159.4 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 71.2 MB). Peak memory consumption was 754.0 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:27,610 INFO L168 Benchmark]: TraceAbstraction took 211571.13 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-07-24 14:23:27,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2920.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 344.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1392.09 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14231.46 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 159.4 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 71.2 MB). Peak memory consumption was 754.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211571.13 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 147). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 211.4s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 182.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7236 SDtfs, 34995 SDslu, 5379 SDs, 0 SdLazy, 68752 SolverSat, 14157 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 146.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3261 GetRequests, 3167 SyntacticMatches, 15 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173409occurred in iteration=10, 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: 19.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 3721 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 3714 NumberOfCodeBlocks, 3714 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5280 ConstructedInterpolants, 0 QuantifiedInterpolants, 3908936 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3004 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 3240/4151 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label27_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-23-27-629.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label27_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-23-27-629.csv Completed graceful shutdown