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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 21:45:44,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 21:45:44,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 21:45:44,651 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 21:45:44,651 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 21:45:44,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 21:45:44,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 21:45:44,658 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 21:45:44,661 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 21:45:44,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 21:45:44,664 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 21:45:44,664 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 21:45:44,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 21:45:44,669 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 21:45:44,677 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 21:45:44,678 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 21:45:44,681 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 21:45:44,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 21:45:44,687 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 21:45:44,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 21:45:44,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 21:45:44,695 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 21:45:44,702 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 21:45:44,702 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 21:45:44,702 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 21:45:44,704 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 21:45:44,705 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 21:45:44,706 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 21:45:44,707 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 21:45:44,708 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 21:45:44,708 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 21:45:44,710 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 21:45:44,710 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 21:45:44,710 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 21:45:44,711 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 21:45:44,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 21:45:44,712 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-11 21:45:44,737 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 21:45:44,737 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 21:45:44,739 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 21:45:44,739 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 21:45:44,739 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 21:45:44,740 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 21:45:44,740 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 21:45:44,740 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 21:45:44,740 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 21:45:44,740 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 21:45:44,741 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 21:45:44,741 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 21:45:44,742 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 21:45:44,742 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 21:45:44,742 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 21:45:44,742 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 21:45:44,743 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 21:45:44,743 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 21:45:44,744 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 21:45:44,744 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 21:45:44,744 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 21:45:44,744 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 21:45:44,745 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 21:45:44,745 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 21:45:44,745 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 21:45:44,745 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 21:45:44,746 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 21:45:44,746 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 21:45:44,746 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 21:45:44,746 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 21:45:44,746 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 21:45:44,746 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 21:45:44,747 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 21:45:44,747 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 21:45:44,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 21:45:44,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 21:45:44,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 21:45:44,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 21:45:44,828 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 21:45:44,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label25_true-unreach-call.c [2018-09-11 21:45:45,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d600b55/22a9761cd8a549d4a23aecb1085ed46f/FLAG55ddaf1f3 [2018-09-11 21:45:45,508 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 21:45:45,510 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label25_true-unreach-call.c [2018-09-11 21:45:45,528 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d600b55/22a9761cd8a549d4a23aecb1085ed46f/FLAG55ddaf1f3 [2018-09-11 21:45:45,545 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d600b55/22a9761cd8a549d4a23aecb1085ed46f [2018-09-11 21:45:45,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 21:45:45,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 21:45:45,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 21:45:45,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 21:45:45,571 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 21:45:45,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:45:45" (1/1) ... [2018-09-11 21:45:45,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18aaf647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:45, skipping insertion in model container [2018-09-11 21:45:45,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:45:45" (1/1) ... [2018-09-11 21:45:45,799 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 21:45:46,068 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 21:45:46,087 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 21:45:46,273 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 21:45:46,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46 WrapperNode [2018-09-11 21:45:46,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 21:45:46,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 21:45:46,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 21:45:46,327 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 21:45:46,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 21:45:46,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 21:45:46,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 21:45:46,455 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 21:45:46,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (1/1) ... [2018-09-11 21:45:46,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 21:45:46,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 21:45:46,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 21:45:46,733 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 21:45:46,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (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 [2018-09-11 21:45:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 21:45:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 21:45:46,815 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 [2018-09-11 21:45:46,815 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 [2018-09-11 21:45:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 21:45:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 21:45:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 21:45:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 21:45:50,045 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 21:45:50,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:45:50 BoogieIcfgContainer [2018-09-11 21:45:50,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 21:45:50,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 21:45:50,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 21:45:50,051 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 21:45:50,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 09:45:45" (1/3) ... [2018-09-11 21:45:50,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427d2f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:45:50, skipping insertion in model container [2018-09-11 21:45:50,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:45:46" (2/3) ... [2018-09-11 21:45:50,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427d2f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:45:50, skipping insertion in model container [2018-09-11 21:45:50,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:45:50" (3/3) ... [2018-09-11 21:45:50,054 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label25_true-unreach-call.c [2018-09-11 21:45:50,063 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 21:45:50,072 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 21:45:50,121 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 21:45:50,122 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 21:45:50,123 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 21:45:50,123 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 21:45:50,123 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 21:45:50,123 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 21:45:50,123 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 21:45:50,124 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 21:45:50,124 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 21:45:50,151 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-11 21:45:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-11 21:45:50,164 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 21:45:50,165 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, 1, 1, 1, 1, 1] [2018-09-11 21:45:50,166 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]=== [2018-09-11 21:45:50,172 INFO L82 PathProgramCache]: Analyzing trace with hash 382760497, now seen corresponding path program 1 times [2018-09-11 21:45:50,175 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 21:45:50,176 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2018-09-11 21:45:50,179 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], [433], [441], [449], [457], [465], [469], [471], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-11 21:45:50,249 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 21:45:50,249 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 21:45:52,199 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 21:45:52,201 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-11 21:45:52,246 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 21:45:53,000 INFO L232 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 76.14% of their original sizes. [2018-09-11 21:45:53,001 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 21:45:53,350 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 21:45:53,352 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 21:45:53,352 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 21:45:53,353 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 21:45:53,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 21:45:53,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 21:45:53,366 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 21:45:53,369 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-11 21:45:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 21:45:59,051 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-11 21:45:59,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 21:45:59,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-09-11 21:45:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 21:45:59,069 INFO L225 Difference]: With dead ends: 576 [2018-09-11 21:45:59,070 INFO L226 Difference]: Without dead ends: 358 [2018-09-11 21:45:59,076 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 21:45:59,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-11 21:45:59,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-11 21:45:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-11 21:45:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-11 21:45:59,152 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 71 [2018-09-11 21:45:59,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 21:45:59,152 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-11 21:45:59,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 21:45:59,153 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-11 21:45:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-11 21:45:59,163 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 21:45:59,164 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 21:45:59,164 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]=== [2018-09-11 21:45:59,164 INFO L82 PathProgramCache]: Analyzing trace with hash 793000707, now seen corresponding path program 1 times [2018-09-11 21:45:59,165 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 21:45:59,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-09-11 21:45:59,165 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], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-11 21:45:59,176 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 21:45:59,176 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown