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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 08:16:15,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 08:16:15,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 08:16:15,505 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 08:16:15,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 08:16:15,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 08:16:15,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 08:16:15,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 08:16:15,517 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 08:16:15,525 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 08:16:15,526 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 08:16:15,526 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 08:16:15,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 08:16:15,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 08:16:15,536 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 08:16:15,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 08:16:15,539 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 08:16:15,543 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 08:16:15,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 08:16:15,551 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 08:16:15,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 08:16:15,555 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 08:16:15,558 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 08:16:15,558 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 08:16:15,558 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 08:16:15,563 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 08:16:15,564 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 08:16:15,567 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 08:16:15,567 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 08:16:15,572 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 08:16:15,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 08:16:15,573 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 08:16:15,574 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 08:16:15,574 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 08:16:15,576 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 08:16:15,576 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 08:16:15,577 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-08-08 08:16:15,605 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 08:16:15,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 08:16:15,608 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 08:16:15,608 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 08:16:15,609 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 08:16:15,609 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 08:16:15,610 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 08:16:15,611 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 08:16:15,611 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 08:16:15,611 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-08-08 08:16:15,611 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 08:16:15,612 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 08:16:15,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 08:16:15,615 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 08:16:15,616 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 08:16:15,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 08:16:15,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 08:16:15,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 08:16:15,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 08:16:15,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 08:16:15,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 08:16:15,618 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 08:16:15,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 08:16:15,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 08:16:15,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 08:16:15,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 08:16:15,619 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 08:16:15,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 08:16:15,620 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 08:16:15,620 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 08:16:15,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 08:16:15,620 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 08:16:15,621 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 08:16:15,621 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 08:16:15,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 08:16:15,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 08:16:15,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 08:16:15,714 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 08:16:15,715 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 08:16:15,716 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c [2018-08-08 08:16:16,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ede28026/7bc0c9c867f946039ea7a99bbe7163de/FLAGb4f818229 [2018-08-08 08:16:16,350 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 08:16:16,351 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c [2018-08-08 08:16:16,378 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ede28026/7bc0c9c867f946039ea7a99bbe7163de/FLAGb4f818229 [2018-08-08 08:16:16,409 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ede28026/7bc0c9c867f946039ea7a99bbe7163de [2018-08-08 08:16:16,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 08:16:16,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 08:16:16,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 08:16:16,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 08:16:16,441 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 08:16:16,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 08:16:16" (1/1) ... [2018-08-08 08:16:16,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711a5c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:16, skipping insertion in model container [2018-08-08 08:16:16,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 08:16:16" (1/1) ... [2018-08-08 08:16:16,657 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 08:16:16,986 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 08:16:17,006 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 08:16:17,136 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 08:16:17,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17 WrapperNode [2018-08-08 08:16:17,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 08:16:17,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 08:16:17,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 08:16:17,204 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 08:16:17,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 08:16:17,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 08:16:17,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 08:16:17,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 08:16:17,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (1/1) ... [2018-08-08 08:16:17,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 08:16:17,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 08:16:17,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 08:16:17,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 08:16:17,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (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 08:16:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 08:16:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 08:16:17,635 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 08:16:17,635 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 08:16:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 08:16:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 08:16:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 08:16:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 08:16:20,950 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 08:16:20,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 08:16:20 BoogieIcfgContainer [2018-08-08 08:16:20,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 08:16:20,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 08:16:20,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 08:16:20,956 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 08:16:20,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 08:16:16" (1/3) ... [2018-08-08 08:16:20,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135be89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 08:16:20, skipping insertion in model container [2018-08-08 08:16:20,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 08:16:17" (2/3) ... [2018-08-08 08:16:20,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135be89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 08:16:20, skipping insertion in model container [2018-08-08 08:16:20,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 08:16:20" (3/3) ... [2018-08-08 08:16:20,960 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label02_true-unreach-call.c [2018-08-08 08:16:20,970 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 08:16:20,979 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 08:16:21,034 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 08:16:21,034 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 08:16:21,035 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 08:16:21,035 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 08:16:21,035 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 08:16:21,035 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 08:16:21,035 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 08:16:21,036 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 08:16:21,036 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 08:16:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-08-08 08:16:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-08-08 08:16:21,074 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 08:16:21,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 08:16:21,077 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 08:16:21,081 INFO L82 PathProgramCache]: Analyzing trace with hash 417311892, now seen corresponding path program 1 times [2018-08-08 08:16:21,083 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 08:16:21,084 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 67 with the following transitions: [2018-08-08 08:16:21,086 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [796], [800], [806], [810], [817], [818], [819], [821] [2018-08-08 08:16:21,123 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 08:16:21,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 08:16:41,158 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 08:16:41,160 INFO L272 AbstractInterpreter]: Visited 65 different actions 65 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 08:16:41,182 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 08:16:49,418 INFO L232 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 75.67% of their original sizes. [2018-08-08 08:16:49,418 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 08:16:49,657 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 08:16:49,659 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 08:16:49,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 08:16:49,659 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 08:16:49,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 08:16:49,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 08:16:49,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 08:16:49,674 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-08-08 08:16:51,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 08:16:51,944 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-08-08 08:16:51,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 08:16:51,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-08-08 08:16:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 08:16:51,964 INFO L225 Difference]: With dead ends: 576 [2018-08-08 08:16:51,964 INFO L226 Difference]: Without dead ends: 358 [2018-08-08 08:16:51,970 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 08:16:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-08-08 08:16:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-08-08 08:16:52,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-08-08 08:16:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-08-08 08:16:52,041 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 66 [2018-08-08 08:16:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 08:16:52,041 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-08-08 08:16:52,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 08:16:52,042 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-08-08 08:16:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-08-08 08:16:52,049 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 08:16:52,050 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, 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] [2018-08-08 08:16:52,050 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 08:16:52,050 INFO L82 PathProgramCache]: Analyzing trace with hash 696839107, now seen corresponding path program 1 times [2018-08-08 08:16:52,050 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 08:16:52,051 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-08-08 08:16:52,051 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 08:16:52,056 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 08:16:52,057 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 08:17:13,215 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 08:17:51,372 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 08:17:51,373 INFO L272 AbstractInterpreter]: Visited 78 different actions 150 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 08:17:51,381 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 08:18:26,222 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 74.21% of their original sizes. [2018-08-08 08:18:26,222 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 08:18:26,466 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 08:18:26,466 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 08:18:26,466 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 08:18:26,466 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 08:18:26,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 08:18:26,468 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 08:18:26,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 08:18:26,469 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-08-08 08:18:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 08:18:30,055 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-08-08 08:18:30,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 08:18:30,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 137 [2018-08-08 08:18:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 08:18:30,066 INFO L225 Difference]: With dead ends: 711 [2018-08-08 08:18:30,066 INFO L226 Difference]: Without dead ends: 505 [2018-08-08 08:18:30,069 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-08-08 08:18:30,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-08-08 08:18:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-08-08 08:18:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-08-08 08:18:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-08-08 08:18:30,101 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 137 [2018-08-08 08:18:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 08:18:30,102 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-08-08 08:18:30,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 08:18:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-08-08 08:18:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-08-08 08:18:30,110 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 08:18:30,110 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, 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] [2018-08-08 08:18:30,111 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 08:18:30,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1246975752, now seen corresponding path program 1 times [2018-08-08 08:18:30,111 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 08:18:30,111 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-08-08 08:18:30,112 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 08:18:30,116 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 08:18:30,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)