java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 17:07:55,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 17:07:55,655 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 17:07:55,674 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 17:07:55,674 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 17:07:55,676 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 17:07:55,677 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 17:07:55,680 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 17:07:55,682 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 17:07:55,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 17:07:55,689 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 17:07:55,690 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 17:07:55,694 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 17:07:55,695 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 17:07:55,702 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 17:07:55,703 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 17:07:55,704 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 17:07:55,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 17:07:55,713 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 17:07:55,717 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 17:07:55,718 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 17:07:55,720 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 17:07:55,727 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 17:07:55,728 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 17:07:55,728 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 17:07:55,729 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 17:07:55,731 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 17:07:55,732 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 17:07:55,732 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 17:07:55,733 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 17:07:55,734 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 17:07:55,736 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 17:07:55,737 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 17:07:55,737 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 17:07:55,738 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 17:07:55,739 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 17:07:55,739 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-08-08 17:07:55,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 17:07:55,770 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 17:07:55,771 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 17:07:55,771 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 17:07:55,771 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 17:07:55,771 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 17:07:55,774 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 17:07:55,774 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 17:07:55,775 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 17:07:55,775 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 17:07:55,775 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 17:07:55,776 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 17:07:55,776 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 17:07:55,776 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 17:07:55,777 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 17:07:55,777 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 17:07:55,777 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 17:07:55,777 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 17:07:55,778 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 17:07:55,779 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 17:07:55,779 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 17:07:55,779 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 17:07:55,779 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 17:07:55,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 17:07:55,780 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 17:07:55,780 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 17:07:55,780 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 17:07:55,780 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 17:07:55,780 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 17:07:55,781 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 17:07:55,781 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 17:07:55,781 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 17:07:55,781 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 17:07:55,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 17:07:55,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 17:07:55,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 17:07:55,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 17:07:55,872 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 17:07:55,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label27_true-unreach-call.c [2018-08-08 17:07:56,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a04bbceaa/9f971144a6f44a9fac29ef40f48c6a6e/FLAG30a710112 [2018-08-08 17:07:56,713 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 17:07:56,714 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label27_true-unreach-call.c [2018-08-08 17:07:56,738 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a04bbceaa/9f971144a6f44a9fac29ef40f48c6a6e/FLAG30a710112 [2018-08-08 17:07:56,755 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a04bbceaa/9f971144a6f44a9fac29ef40f48c6a6e [2018-08-08 17:07:56,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 17:07:56,769 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 17:07:56,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 17:07:56,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 17:07:56,777 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 17:07:56,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 05:07:56" (1/1) ... [2018-08-08 17:07:56,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b765d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:56, skipping insertion in model container [2018-08-08 17:07:56,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 05:07:56" (1/1) ... [2018-08-08 17:07:57,107 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 17:07:57,877 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 17:07:57,898 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 17:07:58,340 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 17:07:58,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58 WrapperNode [2018-08-08 17:07:58,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 17:07:58,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 17:07:58,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 17:07:58,552 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 17:07:58,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:58,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:58,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 17:07:58,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 17:07:58,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 17:07:58,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 17:07:59,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (1/1) ... [2018-08-08 17:07:59,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 17:07:59,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 17:07:59,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 17:07:59,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 17:07:59,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (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 [2018-08-08 17:07:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 17:07:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 17:07:59,792 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 [2018-08-08 17:07:59,792 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 [2018-08-08 17:07:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 17:07:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 17:07:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 17:07:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 17:07:59,793 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 [2018-08-08 17:07:59,794 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 [2018-08-08 17:08:10,690 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 17:08:10,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 05:08:10 BoogieIcfgContainer [2018-08-08 17:08:10,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 17:08:10,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 17:08:10,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 17:08:10,696 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 17:08:10,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 05:07:56" (1/3) ... [2018-08-08 17:08:10,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e51f20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 05:08:10, skipping insertion in model container [2018-08-08 17:08:10,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:07:58" (2/3) ... [2018-08-08 17:08:10,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e51f20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 05:08:10, skipping insertion in model container [2018-08-08 17:08:10,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 05:08:10" (3/3) ... [2018-08-08 17:08:10,699 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label27_true-unreach-call.c [2018-08-08 17:08:10,709 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 17:08:10,719 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 17:08:10,776 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 17:08:10,777 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 17:08:10,777 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 17:08:10,777 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 17:08:10,777 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 17:08:10,778 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 17:08:10,778 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 17:08:10,778 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 17:08:10,778 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 17:08:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-08-08 17:08:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-08-08 17:08:10,842 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 17:08:10,843 INFO L376 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] [2018-08-08 17:08:10,844 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 17:08:10,849 INFO L82 PathProgramCache]: Analyzing trace with hash -313790420, now seen corresponding path program 1 times [2018-08-08 17:08:10,851 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 17:08:10,853 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-08-08 17:08:10,855 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [1574], [1578], [1584], [1588], [2306], [2307], [2308], [2310] [2018-08-08 17:08:10,896 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 17:08:10,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 17:08:15,519 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 17:08:15,520 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-08-08 17:08:15,550 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 17:08:17,056 INFO L232 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 77.14% of their original sizes. [2018-08-08 17:08:17,056 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 17:08:17,229 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 17:08:17,231 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 17:08:17,231 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 17:08:17,232 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 17:08:17,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 17:08:17,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 17:08:17,244 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 17:08:17,247 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-08-08 17:08:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 17:08:24,350 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-08-08 17:08:24,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 17:08:24,352 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-08-08 17:08:24,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 17:08:24,376 INFO L225 Difference]: With dead ends: 1642 [2018-08-08 17:08:24,376 INFO L226 Difference]: Without dead ends: 1036 [2018-08-08 17:08:24,387 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 17:08:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-08-08 17:08:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-08-08 17:08:24,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-08-08 17:08:24,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-08-08 17:08:24,497 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 48 [2018-08-08 17:08:24,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 17:08:24,498 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-08-08 17:08:24,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 17:08:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-08-08 17:08:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-08-08 17:08:24,504 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 17:08:24,505 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 17:08:24,505 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 17:08:24,505 INFO L82 PathProgramCache]: Analyzing trace with hash 738425181, now seen corresponding path program 1 times [2018-08-08 17:08:24,506 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 17:08:24,506 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-08-08 17:08:24,506 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [1570], [1574], [1578], [1584], [1588], [1590], [2306], [2307], [2308], [2310], [2311] [2018-08-08 17:08:24,512 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 17:08:24,512 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 17:08:55,768 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 17:09:30,236 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 17:09:30,236 INFO L272 AbstractInterpreter]: Visited 82 different actions 157 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-08-08 17:09:30,244 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 17:09:51,325 INFO L232 lantSequenceWeakener]: Weakened 120 states. On average, predicates are now at 75.9% of their original sizes. [2018-08-08 17:09:51,325 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 17:09:51,896 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 17:09:51,896 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 17:09:51,897 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 17:09:51,897 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 17:09:51,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 17:09:51,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 17:09:51,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-08-08 17:09:51,900 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 11 states. [2018-08-08 17:10:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 17:10:08,222 INFO L93 Difference]: Finished difference Result 2502 states and 4301 transitions. [2018-08-08 17:10:08,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 17:10:08,229 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 123 [2018-08-08 17:10:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 17:10:08,241 INFO L225 Difference]: With dead ends: 2502 [2018-08-08 17:10:08,242 INFO L226 Difference]: Without dead ends: 1908 [2018-08-08 17:10:08,245 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 129 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-08-08 17:10:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-08-08 17:10:08,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1905. [2018-08-08 17:10:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2018-08-08 17:10:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2402 transitions. [2018-08-08 17:10:08,307 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2402 transitions. Word has length 123 [2018-08-08 17:10:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 17:10:08,308 INFO L480 AbstractCegarLoop]: Abstraction has 1905 states and 2402 transitions. [2018-08-08 17:10:08,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 17:10:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2402 transitions. [2018-08-08 17:10:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-08-08 17:10:08,318 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 17:10:08,319 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 17:10:08,319 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 17:10:08,324 INFO L82 PathProgramCache]: Analyzing trace with hash 2081609434, now seen corresponding path program 1 times [2018-08-08 17:10:08,324 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 17:10:08,324 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-08-08 17:10:08,324 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [546], [550], [554], [558], [562], [566], [570], [573], [1570], [1574], [1578], [1584], [1588], [1590], [2306], [2307], [2308], [2310], [2311] [2018-08-08 17:10:08,333 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 17:10:08,333 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)