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_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 13:23:03,131 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 13:23:03,133 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 13:23:03,150 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 13:23:03,150 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 13:23:03,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 13:23:03,152 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 13:23:03,154 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 13:23:03,156 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 13:23:03,156 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 13:23:03,158 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 13:23:03,158 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 13:23:03,159 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 13:23:03,160 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 13:23:03,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 13:23:03,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 13:23:03,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 13:23:03,164 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 13:23:03,166 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 13:23:03,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 13:23:03,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 13:23:03,170 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 13:23:03,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 13:23:03,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 13:23:03,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 13:23:03,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 13:23:03,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 13:23:03,178 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 13:23:03,181 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 13:23:03,184 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 13:23:03,184 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 13:23:03,185 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 13:23:03,185 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 13:23:03,185 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 13:23:03,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 13:23:03,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 13:23:03,190 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 [2018-08-08 13:23:03,215 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 13:23:03,215 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 13:23:03,216 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 13:23:03,216 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 13:23:03,216 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 13:23:03,216 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 13:23:03,217 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 13:23:03,217 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 13:23:03,217 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 13:23:03,217 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 13:23:03,217 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 13:23:03,218 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 13:23:03,218 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 13:23:03,219 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 13:23:03,219 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 13:23:03,219 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 13:23:03,219 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 13:23:03,219 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 13:23:03,220 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 13:23:03,220 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 13:23:03,220 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 13:23:03,220 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 13:23:03,220 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 13:23:03,221 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 13:23:03,221 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 13:23:03,221 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 13:23:03,223 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 13:23:03,223 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 13:23:03,223 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 13:23:03,223 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 13:23:03,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 13:23:03,223 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 13:23:03,224 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 13:23:03,224 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 13:23:03,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 13:23:03,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 13:23:03,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 13:23:03,306 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 13:23:03,306 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 13:23:03,307 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label27_true-unreach-call.c [2018-08-08 13:23:03,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a5df2110/8b35a6580d3443228cf8946595d8f271/FLAGa544415e0 [2018-08-08 13:23:03,966 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 13:23:03,967 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label27_true-unreach-call.c [2018-08-08 13:23:03,982 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a5df2110/8b35a6580d3443228cf8946595d8f271/FLAGa544415e0 [2018-08-08 13:23:03,998 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a5df2110/8b35a6580d3443228cf8946595d8f271 [2018-08-08 13:23:04,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 13:23:04,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 13:23:04,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 13:23:04,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 13:23:04,019 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 13:23:04,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3094c3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04, skipping insertion in model container [2018-08-08 13:23:04,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,241 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 13:23:04,515 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 13:23:04,532 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 13:23:04,695 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 13:23:04,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04 WrapperNode [2018-08-08 13:23:04,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 13:23:04,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 13:23:04,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 13:23:04,767 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 13:23:04,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 13:23:04,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 13:23:04,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 13:23:04,867 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 13:23:04,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:04,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:05,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:05,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (1/1) ... [2018-08-08 13:23:05,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 13:23:05,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 13:23:05,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 13:23:05,173 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 13:23:05,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (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 13:23:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 13:23:05,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 13:23:05,254 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 13:23:05,254 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 13:23:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 13:23:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 13:23:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 13:23:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 13:23:08,657 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 13:23:08,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:23:08 BoogieIcfgContainer [2018-08-08 13:23:08,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 13:23:08,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 13:23:08,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 13:23:08,664 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 13:23:08,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 01:23:04" (1/3) ... [2018-08-08 13:23:08,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10333b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:23:08, skipping insertion in model container [2018-08-08 13:23:08,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:23:04" (2/3) ... [2018-08-08 13:23:08,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10333b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:23:08, skipping insertion in model container [2018-08-08 13:23:08,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:23:08" (3/3) ... [2018-08-08 13:23:08,668 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label27_true-unreach-call.c [2018-08-08 13:23:08,677 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 13:23:08,686 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 13:23:08,742 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 13:23:08,743 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 13:23:08,743 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 13:23:08,744 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 13:23:08,744 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 13:23:08,744 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 13:23:08,744 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 13:23:08,744 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 13:23:08,745 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 13:23:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-08-08 13:23:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-08-08 13:23:08,792 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:23:08,794 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] [2018-08-08 13:23:08,795 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 13:23:08,801 INFO L82 PathProgramCache]: Analyzing trace with hash 51771233, now seen corresponding path program 1 times [2018-08-08 13:23:08,803 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:23:08,805 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2018-08-08 13:23:08,808 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], [437], [439], [796], [800], [806], [810], [817], [818], [819], [821] [2018-08-08 13:23:08,873 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:23:08,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:23:10,850 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:23:10,852 INFO L272 AbstractInterpreter]: Visited 66 different actions 66 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 13:23:10,866 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:23:11,689 INFO L232 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 76.07% of their original sizes. [2018-08-08 13:23:11,690 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:23:12,011 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:23:12,012 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:23:12,013 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 13:23:12,013 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:23:12,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 13:23:12,027 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 13:23:12,028 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 13:23:12,031 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-08-08 13:23:16,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:23:16,050 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-08-08 13:23:16,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 13:23:16,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2018-08-08 13:23:16,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:23:16,072 INFO L225 Difference]: With dead ends: 576 [2018-08-08 13:23:16,072 INFO L226 Difference]: Without dead ends: 358 [2018-08-08 13:23:16,080 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 66 GetRequests, 62 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 13:23:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-08-08 13:23:16,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-08-08 13:23:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-08-08 13:23:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-08-08 13:23:16,164 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 67 [2018-08-08 13:23:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:23:16,165 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-08-08 13:23:16,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 13:23:16,166 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-08-08 13:23:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-08-08 13:23:16,173 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:23:16,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 13:23:16,174 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 13:23:16,174 INFO L82 PathProgramCache]: Analyzing trace with hash -316431117, now seen corresponding path program 1 times [2018-08-08 13:23:16,175 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:23:16,175 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-08-08 13:23:16,175 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:23:16,185 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:23:16,185 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:23:17,718 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:23:20,650 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:23:20,651 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 13:23:20,661 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:23:22,779 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 74.42% of their original sizes. [2018-08-08 13:23:22,780 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:23:23,551 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:23:23,551 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:23:23,551 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 13:23:23,551 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:23:23,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 13:23:23,553 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 13:23:23,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 13:23:23,554 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-08-08 13:23:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:23:36,607 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-08-08 13:23:36,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 13:23:36,612 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 138 [2018-08-08 13:23:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:23:36,618 INFO L225 Difference]: With dead ends: 711 [2018-08-08 13:23:36,618 INFO L226 Difference]: Without dead ends: 505 [2018-08-08 13:23:36,623 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-08-08 13:23:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-08-08 13:23:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-08-08 13:23:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-08-08 13:23:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-08-08 13:23:36,663 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 138 [2018-08-08 13:23:36,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:23:36,664 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-08-08 13:23:36,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 13:23:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-08-08 13:23:36,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-08-08 13:23:36,668 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:23:36,668 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, 1, 1, 1, 1, 1, 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 13:23:36,669 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 13:23:36,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1486602668, now seen corresponding path program 1 times [2018-08-08 13:23:36,669 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:23:36,669 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-08-08 13:23:36,670 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], [437], [439], [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 13:23:36,674 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:23:36,674 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:23:42,169 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:23:42,169 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 13:23:42,173 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:23:43,400 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 74.32% of their original sizes. [2018-08-08 13:23:43,400 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:23:44,045 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:23:44,046 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:23:44,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 13:23:44,046 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:23:44,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 13:23:44,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 13:23:44,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-08-08 13:23:44,048 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 12 states. [2018-08-08 13:23:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:23:57,253 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-08-08 13:23:57,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 13:23:57,258 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 147 [2018-08-08 13:23:57,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:23:57,267 INFO L225 Difference]: With dead ends: 1002 [2018-08-08 13:23:57,267 INFO L226 Difference]: Without dead ends: 796 [2018-08-08 13:23:57,269 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-08-08 13:23:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-08-08 13:23:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-08-08 13:23:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-08-08 13:23:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-08-08 13:23:57,333 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 147 [2018-08-08 13:23:57,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:23:57,334 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-08-08 13:23:57,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 13:23:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-08-08 13:23:57,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-08-08 13:23:57,340 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:23:57,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:23:57,340 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:23:57,341 INFO L82 PathProgramCache]: Analyzing trace with hash -62017868, now seen corresponding path program 1 times [2018-08-08 13:23:57,341 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:23:57,341 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-08-08 13:23:57,341 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:23:57,347 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:23:57,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:24:02,412 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:24:13,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:24:13,299 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 13:24:13,305 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:24:15,317 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 74% of their original sizes. [2018-08-08 13:24:15,318 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:24:16,335 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:24:16,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:24:16,336 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-08-08 13:24:16,336 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:24:16,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-08-08 13:24:16,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-08-08 13:24:16,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-08-08 13:24:16,338 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 14 states. [2018-08-08 13:24:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:24:26,165 INFO L93 Difference]: Finished difference Result 1161 states and 1610 transitions. [2018-08-08 13:24:26,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-08-08 13:24:26,166 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 183 [2018-08-08 13:24:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:24:26,173 INFO L225 Difference]: With dead ends: 1161 [2018-08-08 13:24:26,173 INFO L226 Difference]: Without dead ends: 955 [2018-08-08 13:24:26,175 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2018-08-08 13:24:26,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2018-08-08 13:24:26,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 943. [2018-08-08 13:24:26,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2018-08-08 13:24:26,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1137 transitions. [2018-08-08 13:24:26,221 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1137 transitions. Word has length 183 [2018-08-08 13:24:26,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:24:26,222 INFO L480 AbstractCegarLoop]: Abstraction has 943 states and 1137 transitions. [2018-08-08 13:24:26,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-08-08 13:24:26,222 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1137 transitions. [2018-08-08 13:24:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-08-08 13:24:26,228 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:24:26,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:26,228 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:24:26,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1439184525, now seen corresponding path program 1 times [2018-08-08 13:24:26,229 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:24:26,229 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-08-08 13:24:26,230 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:24:26,238 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:24:26,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:24:41,368 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:24:41,368 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 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 13:24:41,378 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:24:43,310 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 73.88% of their original sizes. [2018-08-08 13:24:43,310 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:24:45,102 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:24:45,103 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:24:45,103 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-08-08 13:24:45,103 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:24:45,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-08-08 13:24:45,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-08-08 13:24:45,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-08-08 13:24:45,105 INFO L87 Difference]: Start difference. First operand 943 states and 1137 transitions. Second operand 18 states. [2018-08-08 13:24:56,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:24:56,314 INFO L93 Difference]: Finished difference Result 1561 states and 2167 transitions. [2018-08-08 13:24:56,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-08-08 13:24:56,317 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 202 [2018-08-08 13:24:56,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:24:56,324 INFO L225 Difference]: With dead ends: 1561 [2018-08-08 13:24:56,324 INFO L226 Difference]: Without dead ends: 1207 [2018-08-08 13:24:56,327 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 13:24:56,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2018-08-08 13:24:56,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1205. [2018-08-08 13:24:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2018-08-08 13:24:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1418 transitions. [2018-08-08 13:24:56,384 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1418 transitions. Word has length 202 [2018-08-08 13:24:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:24:56,385 INFO L480 AbstractCegarLoop]: Abstraction has 1205 states and 1418 transitions. [2018-08-08 13:24:56,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-08-08 13:24:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1418 transitions. [2018-08-08 13:24:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-08-08 13:24:56,390 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:24:56,390 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 13:24:56,391 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:24:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1879326070, now seen corresponding path program 1 times [2018-08-08 13:24:56,391 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:24:56,391 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-08-08 13:24:56,392 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:24:56,395 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:24:56,396 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:24:57,972 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:25:05,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:25:05,365 INFO L272 AbstractInterpreter]: Visited 84 different actions 244 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:25:05,370 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:25:07,394 INFO L232 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 73.87% of their original sizes. [2018-08-08 13:25:07,394 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:25:08,011 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:25:08,011 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:25:08,011 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 13:25:08,011 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:25:08,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 13:25:08,012 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 13:25:08,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 13:25:08,013 INFO L87 Difference]: Start difference. First operand 1205 states and 1418 transitions. Second operand 11 states. [2018-08-08 13:25:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:25:19,716 INFO L93 Difference]: Finished difference Result 1717 states and 2233 transitions. [2018-08-08 13:25:19,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-08-08 13:25:19,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 214 [2018-08-08 13:25:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:25:19,723 INFO L225 Difference]: With dead ends: 1717 [2018-08-08 13:25:19,724 INFO L226 Difference]: Without dead ends: 1363 [2018-08-08 13:25:19,726 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 223 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-08-08 13:25:19,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2018-08-08 13:25:19,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1353. [2018-08-08 13:25:19,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2018-08-08 13:25:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1584 transitions. [2018-08-08 13:25:19,790 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1584 transitions. Word has length 214 [2018-08-08 13:25:19,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:25:19,791 INFO L480 AbstractCegarLoop]: Abstraction has 1353 states and 1584 transitions. [2018-08-08 13:25:19,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 13:25:19,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1584 transitions. [2018-08-08 13:25:19,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-08-08 13:25:19,798 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:25:19,798 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 13:25:19,798 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:25:19,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1527088322, now seen corresponding path program 1 times [2018-08-08 13:25:19,799 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:25:19,799 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-08-08 13:25:19,799 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:25:19,803 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:25:19,804 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:25:21,463 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:25:42,148 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:25:42,149 INFO L272 AbstractInterpreter]: Visited 88 different actions 511 times. Merged at 7 different actions 38 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:25:42,153 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:25:44,713 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 73.85% of their original sizes. [2018-08-08 13:25:44,714 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:25:45,891 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:25:45,892 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:25:45,892 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 13:25:45,892 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:25:45,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 13:25:45,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 13:25:45,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-08-08 13:25:45,893 INFO L87 Difference]: Start difference. First operand 1353 states and 1584 transitions. Second operand 15 states. [2018-08-08 13:26:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:26:01,312 INFO L93 Difference]: Finished difference Result 2559 states and 3382 transitions. [2018-08-08 13:26:01,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-08-08 13:26:01,313 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 218 [2018-08-08 13:26:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:26:01,328 INFO L225 Difference]: With dead ends: 2559 [2018-08-08 13:26:01,329 INFO L226 Difference]: Without dead ends: 2057 [2018-08-08 13:26:01,331 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2018-08-08 13:26:01,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2018-08-08 13:26:01,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2037. [2018-08-08 13:26:01,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2018-08-08 13:26:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2424 transitions. [2018-08-08 13:26:01,435 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2424 transitions. Word has length 218 [2018-08-08 13:26:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:26:01,435 INFO L480 AbstractCegarLoop]: Abstraction has 2037 states and 2424 transitions. [2018-08-08 13:26:01,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 13:26:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2424 transitions. [2018-08-08 13:26:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-08-08 13:26:01,443 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:26:01,443 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:01,443 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:26:01,444 INFO L82 PathProgramCache]: Analyzing trace with hash 117318037, now seen corresponding path program 1 times [2018-08-08 13:26:01,444 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:26:01,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-08-08 13:26:01,444 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:26:01,448 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:26:01,448 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:26:02,973 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:26:25,891 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:26:25,891 INFO L272 AbstractInterpreter]: Visited 121 different actions 356 times. Merged at 7 different actions 15 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:26:25,900 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:26:29,174 INFO L232 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 73.7% of their original sizes. [2018-08-08 13:26:29,174 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:26:31,296 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:26:31,297 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:26:31,297 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-08-08 13:26:31,297 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:26:31,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-08-08 13:26:31,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-08-08 13:26:31,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-08-08 13:26:31,298 INFO L87 Difference]: Start difference. First operand 2037 states and 2424 transitions. Second operand 19 states. [2018-08-08 13:26:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:26:50,499 INFO L93 Difference]: Finished difference Result 4438 states and 5613 transitions. [2018-08-08 13:26:50,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-08 13:26:50,501 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 251 [2018-08-08 13:26:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:26:50,517 INFO L225 Difference]: With dead ends: 4438 [2018-08-08 13:26:50,517 INFO L226 Difference]: Without dead ends: 2961 [2018-08-08 13:26:50,523 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 269 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2018-08-08 13:26:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2018-08-08 13:26:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2897. [2018-08-08 13:26:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2897 states. [2018-08-08 13:26:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3445 transitions. [2018-08-08 13:26:50,673 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3445 transitions. Word has length 251 [2018-08-08 13:26:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:26:50,674 INFO L480 AbstractCegarLoop]: Abstraction has 2897 states and 3445 transitions. [2018-08-08 13:26:50,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-08-08 13:26:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3445 transitions. [2018-08-08 13:26:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-08-08 13:26:50,682 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:26:50,682 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:50,682 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:26:50,683 INFO L82 PathProgramCache]: Analyzing trace with hash 183130148, now seen corresponding path program 1 times [2018-08-08 13:26:50,683 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:26:50,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-08-08 13:26:50,684 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], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:26:50,687 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:26:50,687 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:26:55,705 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:27:29,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:27:29,289 INFO L272 AbstractInterpreter]: Visited 124 different actions 604 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:27:29,295 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-08-08 13:27:32,290 INFO L232 lantSequenceWeakener]: Weakened 254 states. On average, predicates are now at 73.68% of their original sizes. [2018-08-08 13:27:32,291 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:27:32,307 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 13:27:32,312 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 13:27:32,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 01:27:32 BoogieIcfgContainer [2018-08-08 13:27:32,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 13:27:32,314 INFO L168 Benchmark]: Toolchain (without parser) took 268303.89 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -573.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-08-08 13:27:32,316 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 13:27:32,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-08-08 13:27:32,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-08 13:27:32,318 INFO L168 Benchmark]: Boogie Preprocessor took 305.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -890.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2018-08-08 13:27:32,319 INFO L168 Benchmark]: RCFGBuilder took 3485.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 122.8 MB). Peak memory consumption was 122.8 MB. Max. memory is 7.1 GB. [2018-08-08 13:27:32,320 INFO L168 Benchmark]: TraceAbstraction took 263653.31 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 140.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-08-08 13:27:32,325 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 100.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 305.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -890.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3485.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 122.8 MB). Peak memory consumption was 122.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263653.31 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 140.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 184]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 184). Cancelled while BasicCegarLoop was analyzing trace of length 257 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 263.5s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 97.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1616 SDtfs, 7832 SDslu, 2681 SDs, 0 SdLazy, 15462 SolverSat, 1732 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.4s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 1497 GetRequests, 1323 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2897occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 137.5s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.994547730770051 AbsIntWeakeningRatio, 0.1187762447510498 AbsIntAvgWeakeningVarsNumRemoved, 93.09478104379124 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 116 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label27_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_13-27-32-339.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label27_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_13-27-32-339.csv Completed graceful shutdown