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_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 13:27:34,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 13:27:34,731 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 13:27:34,744 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 13:27:34,744 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 13:27:34,745 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 13:27:34,747 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 13:27:34,748 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 13:27:34,750 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 13:27:34,751 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 13:27:34,752 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 13:27:34,752 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 13:27:34,753 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 13:27:34,754 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 13:27:34,755 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 13:27:34,756 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 13:27:34,757 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 13:27:34,759 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 13:27:34,761 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 13:27:34,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 13:27:34,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 13:27:34,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 13:27:34,775 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 13:27:34,779 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 13:27:34,779 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 13:27:34,780 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 13:27:34,781 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 13:27:34,785 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 13:27:34,786 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 13:27:34,787 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 13:27:34,787 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 13:27:34,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 13:27:34,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 13:27:34,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 13:27:34,792 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 13:27:34,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 13:27:34,796 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 13:27:34,824 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 13:27:34,825 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 13:27:34,826 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 13:27:34,826 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 13:27:34,826 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 13:27:34,826 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 13:27:34,827 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 13:27:34,827 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 13:27:34,827 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 13:27:34,827 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 13:27:34,827 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 13:27:34,827 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 13:27:34,828 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 13:27:34,828 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 13:27:34,829 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 13:27:34,829 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 13:27:34,829 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 13:27:34,829 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 13:27:34,829 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 13:27:34,829 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 13:27:34,830 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 13:27:34,830 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 13:27:34,830 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 13:27:34,830 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 13:27:34,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 13:27:34,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 13:27:34,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 13:27:34,832 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 13:27:34,832 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 13:27:34,833 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 13:27:34,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 13:27:34,833 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 13:27:34,833 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 13:27:34,834 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 13:27:34,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 13:27:34,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 13:27:34,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 13:27:34,923 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 13:27:34,924 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 13:27:34,924 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51_true-unreach-call.c [2018-08-08 13:27:35,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc1297fc/b1a1fa57dc534213bc07887116470ac8/FLAGc869e0dce [2018-08-08 13:27:35,595 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 13:27:35,597 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51_true-unreach-call.c [2018-08-08 13:27:35,620 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc1297fc/b1a1fa57dc534213bc07887116470ac8/FLAGc869e0dce [2018-08-08 13:27:35,643 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc1297fc/b1a1fa57dc534213bc07887116470ac8 [2018-08-08 13:27:35,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 13:27:35,658 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 13:27:35,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 13:27:35,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 13:27:35,669 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 13:27:35,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 01:27:35" (1/1) ... [2018-08-08 13:27:35,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711a5c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:35, skipping insertion in model container [2018-08-08 13:27:35,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 01:27:35" (1/1) ... [2018-08-08 13:27:35,883 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 13:27:36,177 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 13:27:36,197 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 13:27:36,350 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 13:27:36,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36 WrapperNode [2018-08-08 13:27:36,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 13:27:36,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 13:27:36,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 13:27:36,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 13:27:36,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 13:27:36,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 13:27:36,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 13:27:36,527 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 13:27:36,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (1/1) ... [2018-08-08 13:27:36,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 13:27:36,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 13:27:36,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 13:27:36,780 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 13:27:36,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (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 13:27:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 13:27:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 13:27:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 13:27:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 13:27:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 13:27:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 13:27:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 13:27:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 13:27:40,317 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 13:27:40,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:27:40 BoogieIcfgContainer [2018-08-08 13:27:40,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 13:27:40,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 13:27:40,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 13:27:40,333 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 13:27:40,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 01:27:35" (1/3) ... [2018-08-08 13:27:40,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135be89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:27:40, skipping insertion in model container [2018-08-08 13:27:40,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:27:36" (2/3) ... [2018-08-08 13:27:40,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135be89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:27:40, skipping insertion in model container [2018-08-08 13:27:40,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:27:40" (3/3) ... [2018-08-08 13:27:40,340 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label51_true-unreach-call.c [2018-08-08 13:27:40,351 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 13:27:40,360 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 13:27:40,417 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 13:27:40,418 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 13:27:40,418 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 13:27:40,419 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 13:27:40,419 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 13:27:40,419 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 13:27:40,419 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 13:27:40,420 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 13:27:40,420 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 13:27:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-08-08 13:27:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-08-08 13:27:40,458 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:27:40,459 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] [2018-08-08 13:27:40,461 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 13:27:40,467 INFO L82 PathProgramCache]: Analyzing trace with hash 748185177, now seen corresponding path program 1 times [2018-08-08 13:27:40,470 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:27:40,471 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2018-08-08 13:27:40,474 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], [357], [359], [796], [800], [806], [810], [817], [818], [819], [821] [2018-08-08 13:27:40,541 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:27:40,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:27:42,195 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:27:42,197 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 13:27:42,214 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:27:43,048 INFO L232 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 75.85% of their original sizes. [2018-08-08 13:27:43,048 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:27:43,418 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:27:43,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:27:43,420 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 13:27:43,420 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:27:43,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 13:27:43,436 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 13:27:43,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 13:27:43,440 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-08-08 13:27:48,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:27:48,522 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-08-08 13:27:48,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 13:27:48,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-08-08 13:27:48,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:27:48,544 INFO L225 Difference]: With dead ends: 576 [2018-08-08 13:27:48,544 INFO L226 Difference]: Without dead ends: 358 [2018-08-08 13:27:48,551 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 13:27:48,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-08-08 13:27:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-08-08 13:27:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-08-08 13:27:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-08-08 13:27:48,629 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 57 [2018-08-08 13:27:48,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:27:48,630 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-08-08 13:27:48,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 13:27:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-08-08 13:27:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-08-08 13:27:48,641 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:27:48,641 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, 1, 1, 1, 1, 1, 1, 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 13:27:48,642 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 13:27:48,643 INFO L82 PathProgramCache]: Analyzing trace with hash 2000174539, now seen corresponding path program 1 times [2018-08-08 13:27:48,643 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:27:48,643 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-08-08 13:27:48,644 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:27:48,656 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:27:48,657 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:27:50,365 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:27:53,567 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:27:53,567 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 13:27:53,573 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:27:55,594 INFO L232 lantSequenceWeakener]: Weakened 126 states. On average, predicates are now at 74.2% of their original sizes. [2018-08-08 13:27:55,594 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:27:56,493 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:27:56,494 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:27:56,494 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 13:27:56,494 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:27:56,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 13:27:56,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 13:27:56,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 13:27:56,497 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-08-08 13:28:08,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:28:08,340 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-08-08 13:28:08,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 13:28:08,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2018-08-08 13:28:08,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:28:08,347 INFO L225 Difference]: With dead ends: 711 [2018-08-08 13:28:08,347 INFO L226 Difference]: Without dead ends: 505 [2018-08-08 13:28:08,350 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-08-08 13:28:08,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-08-08 13:28:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-08-08 13:28:08,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-08-08 13:28:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-08-08 13:28:08,390 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 128 [2018-08-08 13:28:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:28:08,391 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-08-08 13:28:08,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 13:28:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-08-08 13:28:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-08-08 13:28:08,395 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:28:08,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:08,396 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 13:28:08,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2018939652, now seen corresponding path program 1 times [2018-08-08 13:28:08,397 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:28:08,397 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-08-08 13:28:08,397 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:28:08,402 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:28:08,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:28:13,911 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:28:13,911 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 13:28:13,917 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:28:15,209 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 74.1% of their original sizes. [2018-08-08 13:28:15,210 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:28:15,815 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:28:15,816 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:28:15,816 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 13:28:15,816 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:28:15,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 13:28:15,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 13:28:15,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-08-08 13:28:15,817 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 12 states. [2018-08-08 13:28:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:28:29,344 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-08-08 13:28:29,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 13:28:29,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 137 [2018-08-08 13:28:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:28:29,354 INFO L225 Difference]: With dead ends: 1002 [2018-08-08 13:28:29,354 INFO L226 Difference]: Without dead ends: 796 [2018-08-08 13:28:29,359 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 144 GetRequests, 126 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 13:28:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-08-08 13:28:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-08-08 13:28:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-08-08 13:28:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-08-08 13:28:29,410 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 137 [2018-08-08 13:28:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:28:29,411 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-08-08 13:28:29,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 13:28:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-08-08 13:28:29,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-08-08 13:28:29,418 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:28:29,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:29,419 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 13:28:29,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1095771636, now seen corresponding path program 1 times [2018-08-08 13:28:29,419 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:28:29,419 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-08-08 13:28:29,420 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [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 13:28:29,426 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:28:29,427 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:28:33,765 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:28:43,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:28:43,779 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 13:28:43,782 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:28:46,101 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 73.81% of their original sizes. [2018-08-08 13:28:46,102 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:28:47,078 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:28:47,079 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:28:47,079 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-08-08 13:28:47,079 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:28:47,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-08-08 13:28:47,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-08-08 13:28:47,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-08-08 13:28:47,081 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 14 states. [2018-08-08 13:28:57,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:28:57,112 INFO L93 Difference]: Finished difference Result 1161 states and 1610 transitions. [2018-08-08 13:28:57,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-08-08 13:28:57,113 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2018-08-08 13:28:57,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:28:57,120 INFO L225 Difference]: With dead ends: 1161 [2018-08-08 13:28:57,120 INFO L226 Difference]: Without dead ends: 955 [2018-08-08 13:28:57,122 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 160 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 13:28:57,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2018-08-08 13:28:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 943. [2018-08-08 13:28:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2018-08-08 13:28:57,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1137 transitions. [2018-08-08 13:28:57,175 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1137 transitions. Word has length 173 [2018-08-08 13:28:57,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:28:57,176 INFO L480 AbstractCegarLoop]: Abstraction has 943 states and 1137 transitions. [2018-08-08 13:28:57,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-08-08 13:28:57,176 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1137 transitions. [2018-08-08 13:28:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-08-08 13:28:57,180 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:28:57,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:57,181 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 13:28:57,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1874001333, now seen corresponding path program 1 times [2018-08-08 13:28:57,182 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:28:57,182 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-08-08 13:28:57,183 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [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 13:28:57,189 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:28:57,190 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:29:11,081 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:29:11,081 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 13:29:11,084 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:29:13,145 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 73.7% of their original sizes. [2018-08-08 13:29:13,145 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:29:14,902 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:29:14,902 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:29:14,902 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-08-08 13:29:14,903 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:29:14,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-08-08 13:29:14,903 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-08-08 13:29:14,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-08-08 13:29:14,904 INFO L87 Difference]: Start difference. First operand 943 states and 1137 transitions. Second operand 18 states. [2018-08-08 13:29:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:29:27,193 INFO L93 Difference]: Finished difference Result 1561 states and 2167 transitions. [2018-08-08 13:29:27,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-08-08 13:29:27,195 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 192 [2018-08-08 13:29:27,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:29:27,202 INFO L225 Difference]: With dead ends: 1561 [2018-08-08 13:29:27,202 INFO L226 Difference]: Without dead ends: 1207 [2018-08-08 13:29:27,205 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 208 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 13:29:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2018-08-08 13:29:27,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1205. [2018-08-08 13:29:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2018-08-08 13:29:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1418 transitions. [2018-08-08 13:29:27,256 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1418 transitions. Word has length 192 [2018-08-08 13:29:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:29:27,256 INFO L480 AbstractCegarLoop]: Abstraction has 1205 states and 1418 transitions. [2018-08-08 13:29:27,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-08-08 13:29:27,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1418 transitions. [2018-08-08 13:29:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-08-08 13:29:27,260 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:29:27,260 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, 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] [2018-08-08 13:29:27,261 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 13:29:27,261 INFO L82 PathProgramCache]: Analyzing trace with hash 5463726, now seen corresponding path program 1 times [2018-08-08 13:29:27,261 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:29:27,262 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-08-08 13:29:27,262 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [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 13:29:27,265 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:29:27,265 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:29:28,614 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:29:35,088 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:29:35,088 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 13:29:35,093 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:29:37,127 INFO L232 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 73.7% of their original sizes. [2018-08-08 13:29:37,127 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:29:37,721 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:29:37,721 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:29:37,721 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 13:29:37,721 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:29:37,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 13:29:37,722 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 13:29:37,722 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 13:29:37,723 INFO L87 Difference]: Start difference. First operand 1205 states and 1418 transitions. Second operand 11 states. [2018-08-08 13:29:45,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:29:45,747 INFO L93 Difference]: Finished difference Result 1717 states and 2233 transitions. [2018-08-08 13:29:45,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-08-08 13:29:45,755 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2018-08-08 13:29:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:29:45,763 INFO L225 Difference]: With dead ends: 1717 [2018-08-08 13:29:45,763 INFO L226 Difference]: Without dead ends: 1363 [2018-08-08 13:29:45,765 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 213 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-08-08 13:29:45,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2018-08-08 13:29:45,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1353. [2018-08-08 13:29:45,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2018-08-08 13:29:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1584 transitions. [2018-08-08 13:29:45,832 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1584 transitions. Word has length 204 [2018-08-08 13:29:45,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:29:45,833 INFO L480 AbstractCegarLoop]: Abstraction has 1353 states and 1584 transitions. [2018-08-08 13:29:45,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 13:29:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1584 transitions. [2018-08-08 13:29:45,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-08-08 13:29:45,839 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:29:45,840 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, 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] [2018-08-08 13:29:45,840 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 13:29:45,841 INFO L82 PathProgramCache]: Analyzing trace with hash 171488886, now seen corresponding path program 1 times [2018-08-08 13:29:45,841 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:29:45,841 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-08-08 13:29:45,841 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [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 13:29:45,846 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:29:45,846 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:29:47,281 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:30:06,035 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:30:06,035 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 13:30:06,041 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:30:08,405 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.68% of their original sizes. [2018-08-08 13:30:08,406 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:30:09,608 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:30:09,609 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:30:09,609 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 13:30:09,609 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:30:09,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 13:30:09,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 13:30:09,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-08-08 13:30:09,610 INFO L87 Difference]: Start difference. First operand 1353 states and 1584 transitions. Second operand 15 states. [2018-08-08 13:30:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:30:24,086 INFO L93 Difference]: Finished difference Result 2559 states and 3382 transitions. [2018-08-08 13:30:24,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-08-08 13:30:24,086 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 208 [2018-08-08 13:30:24,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:30:24,106 INFO L225 Difference]: With dead ends: 2559 [2018-08-08 13:30:24,107 INFO L226 Difference]: Without dead ends: 2057 [2018-08-08 13:30:24,110 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2018-08-08 13:30:24,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2018-08-08 13:30:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2037. [2018-08-08 13:30:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2018-08-08 13:30:24,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2424 transitions. [2018-08-08 13:30:24,219 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2424 transitions. Word has length 208 [2018-08-08 13:30:24,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:30:24,219 INFO L480 AbstractCegarLoop]: Abstraction has 2037 states and 2424 transitions. [2018-08-08 13:30:24,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 13:30:24,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2424 transitions. [2018-08-08 13:30:24,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-08-08 13:30:24,226 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:30:24,226 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, 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] [2018-08-08 13:30:24,227 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 13:30:24,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1447327117, now seen corresponding path program 1 times [2018-08-08 13:30:24,227 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:30:24,227 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-08-08 13:30:24,228 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [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 13:30:24,231 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:30:24,231 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:30:25,647 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:30:47,497 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:30:47,498 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 13:30:47,502 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:30:50,996 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 73.55% of their original sizes. [2018-08-08 13:30:50,997 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:30:53,232 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:30:53,232 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:30:53,232 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-08-08 13:30:53,232 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:30:53,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-08-08 13:30:53,233 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-08-08 13:30:53,233 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-08-08 13:30:53,233 INFO L87 Difference]: Start difference. First operand 2037 states and 2424 transitions. Second operand 19 states. [2018-08-08 13:31:13,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:31:13,801 INFO L93 Difference]: Finished difference Result 4438 states and 5613 transitions. [2018-08-08 13:31:13,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-08 13:31:13,816 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 241 [2018-08-08 13:31:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:31:13,832 INFO L225 Difference]: With dead ends: 4438 [2018-08-08 13:31:13,832 INFO L226 Difference]: Without dead ends: 2961 [2018-08-08 13:31:13,838 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2018-08-08 13:31:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2018-08-08 13:31:13,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2897. [2018-08-08 13:31:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2897 states. [2018-08-08 13:31:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3445 transitions. [2018-08-08 13:31:13,995 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3445 transitions. Word has length 241 [2018-08-08 13:31:13,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:31:13,996 INFO L480 AbstractCegarLoop]: Abstraction has 2897 states and 3445 transitions. [2018-08-08 13:31:13,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-08-08 13:31:13,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3445 transitions. [2018-08-08 13:31:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-08-08 13:31:14,003 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:31:14,004 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, 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] [2018-08-08 13:31:14,004 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 13:31:14,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1884805732, now seen corresponding path program 1 times [2018-08-08 13:31:14,005 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:31:14,005 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 247 with the following transitions: [2018-08-08 13:31:14,005 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [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 13:31:14,009 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:31:14,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:31:18,464 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:31:49,201 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:31:49,201 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 13:31:49,211 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:31:52,562 INFO L232 lantSequenceWeakener]: Weakened 244 states. On average, predicates are now at 73.53% of their original sizes. [2018-08-08 13:31:52,563 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:31:57,053 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:31:57,054 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:31:57,054 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-08-08 13:31:57,054 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:31:57,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-08-08 13:31:57,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-08-08 13:31:57,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2018-08-08 13:31:57,055 INFO L87 Difference]: Start difference. First operand 2897 states and 3445 transitions. Second operand 17 states. Received shutdown request... [2018-08-08 13:31:57,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-08 13:31:57,966 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 13:31:57,973 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 13:31:57,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 01:31:57 BoogieIcfgContainer [2018-08-08 13:31:57,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 13:31:57,974 INFO L168 Benchmark]: Toolchain (without parser) took 262317.74 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-08-08 13:31:57,976 INFO L168 Benchmark]: CDTParser took 0.18 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 13:31:57,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.47 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 13:31:57,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.24 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 13:31:57,978 INFO L168 Benchmark]: Boogie Preprocessor took 251.69 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -854.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2018-08-08 13:31:57,980 INFO L168 Benchmark]: RCFGBuilder took 3539.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. [2018-08-08 13:31:57,980 INFO L168 Benchmark]: TraceAbstraction took 257653.79 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -913.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-08-08 13:31:57,986 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 738.47 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 126.24 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 251.69 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -854.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3539.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257653.79 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -913.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 154). Cancelled while BasicCegarLoop was constructing difference of abstraction (2897states) and FLOYD_HOARE automaton (currently 7 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (30 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 257.5s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 96.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1625 SDtfs, 7496 SDslu, 2408 SDs, 0 SdLazy, 14937 SolverSat, 1728 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.4s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 1666 GetRequests, 1462 SyntacticMatches, 11 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 19.8s 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, 126.9s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9942365676561032 AbsIntWeakeningRatio, 0.12555485098287889 AbsIntAvgWeakeningVarsNumRemoved, 86.76537729866835 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_label51_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_13-31-58-000.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label51_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_13-31-58-000.csv Completed graceful shutdown