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/Problem14_label06_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 14:06:16,835 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 14:06:16,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 14:06:16,852 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 14:06:16,852 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 14:06:16,853 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 14:06:16,855 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 14:06:16,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 14:06:16,859 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 14:06:16,860 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 14:06:16,861 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 14:06:16,862 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 14:06:16,863 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 14:06:16,864 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 14:06:16,865 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 14:06:16,866 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 14:06:16,867 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 14:06:16,868 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 14:06:16,871 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 14:06:16,872 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 14:06:16,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 14:06:16,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 14:06:16,877 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 14:06:16,878 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 14:06:16,878 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 14:06:16,879 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 14:06:16,880 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 14:06:16,881 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 14:06:16,881 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 14:06:16,883 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 14:06:16,883 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 14:06:16,884 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 14:06:16,884 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 14:06:16,884 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 14:06:16,885 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 14:06:16,886 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 14:06:16,886 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 14:06:16,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 14:06:16,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 14:06:16,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 14:06:16,917 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 14:06:16,918 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 14:06:16,918 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 14:06:16,918 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 14:06:16,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 14:06:16,918 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 14:06:16,919 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 14:06:16,919 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 14:06:16,919 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 14:06:16,922 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 14:06:16,922 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 14:06:16,922 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 14:06:16,923 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 14:06:16,923 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 14:06:16,923 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 14:06:16,923 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 14:06:16,923 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 14:06:16,924 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 14:06:16,924 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 14:06:16,924 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 14:06:16,924 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 14:06:16,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 14:06:16,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 14:06:16,926 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 14:06:16,926 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 14:06:16,926 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 14:06:16,926 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 14:06:16,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 14:06:16,927 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 14:06:16,927 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 14:06:16,927 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 14:06:16,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 14:06:17,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 14:06:17,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 14:06:17,024 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 14:06:17,025 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 14:06:17,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label06_true-unreach-call_false-termination.c [2018-08-08 14:06:17,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e60e3d79/7edc32231f4f491384e85c30cabbcbff/FLAG6a02783f8 [2018-08-08 14:06:17,737 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 14:06:17,740 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label06_true-unreach-call_false-termination.c [2018-08-08 14:06:17,761 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e60e3d79/7edc32231f4f491384e85c30cabbcbff/FLAG6a02783f8 [2018-08-08 14:06:17,778 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e60e3d79/7edc32231f4f491384e85c30cabbcbff [2018-08-08 14:06:17,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 14:06:17,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 14:06:17,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 14:06:17,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 14:06:17,800 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 14:06:17,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:06:17" (1/1) ... [2018-08-08 14:06:17,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f50e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:17, skipping insertion in model container [2018-08-08 14:06:17,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:06:17" (1/1) ... [2018-08-08 14:06:18,058 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 14:06:18,389 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:06:18,407 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 14:06:18,573 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:06:18,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18 WrapperNode [2018-08-08 14:06:18,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 14:06:18,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 14:06:18,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 14:06:18,646 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 14:06:18,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:18,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:18,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 14:06:18,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 14:06:18,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 14:06:18,777 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 14:06:18,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:18,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:18,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:18,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:18,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:19,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:19,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (1/1) ... [2018-08-08 14:06:19,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 14:06:19,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 14:06:19,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 14:06:19,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 14:06:19,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (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 14:06:19,115 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-08-08 14:06:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-08-08 14:06:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 14:06:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 14:06:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 14:06:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 14:06:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 14:06:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 14:06:23,242 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 14:06:23,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:06:23 BoogieIcfgContainer [2018-08-08 14:06:23,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 14:06:23,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 14:06:23,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 14:06:23,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 14:06:23,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 02:06:17" (1/3) ... [2018-08-08 14:06:23,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3418dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:06:23, skipping insertion in model container [2018-08-08 14:06:23,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:06:18" (2/3) ... [2018-08-08 14:06:23,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3418dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:06:23, skipping insertion in model container [2018-08-08 14:06:23,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:06:23" (3/3) ... [2018-08-08 14:06:23,259 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label06_true-unreach-call_false-termination.c [2018-08-08 14:06:23,271 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 14:06:23,284 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 14:06:23,349 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 14:06:23,350 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 14:06:23,350 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 14:06:23,350 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 14:06:23,350 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 14:06:23,350 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 14:06:23,351 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 14:06:23,351 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 14:06:23,351 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 14:06:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-08-08 14:06:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-08-08 14:06:23,395 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:06:23,397 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:06:23,398 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:06:23,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1833035364, now seen corresponding path program 1 times [2018-08-08 14:06:23,405 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:06:23,406 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 69 with the following transitions: [2018-08-08 14:06:23,409 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [947], [948], [952], [956], [962], [966], [973], [974], [975], [977] [2018-08-08 14:06:23,473 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:06:23,473 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:06:25,746 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:06:25,748 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 14:06:25,760 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:06:26,966 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 80.83% of their original sizes. [2018-08-08 14:06:26,966 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:06:27,262 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:06:27,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:06:27,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 14:06:27,264 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:06:27,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 14:06:27,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 14:06:27,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:06:27,280 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-08-08 14:06:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:06:33,290 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-08-08 14:06:33,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 14:06:33,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2018-08-08 14:06:33,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:06:33,309 INFO L225 Difference]: With dead ends: 693 [2018-08-08 14:06:33,310 INFO L226 Difference]: Without dead ends: 436 [2018-08-08 14:06:33,318 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 67 GetRequests, 63 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 14:06:33,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-08-08 14:06:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-08-08 14:06:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-08-08 14:06:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-08-08 14:06:33,412 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 68 [2018-08-08 14:06:33,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:06:33,413 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-08-08 14:06:33,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 14:06:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-08-08 14:06:33,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-08-08 14:06:33,427 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:06:33,427 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:33,427 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:06:33,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1875302025, now seen corresponding path program 1 times [2018-08-08 14:06:33,428 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:06:33,429 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-08-08 14:06:33,430 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 14:06:33,437 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:06:33,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:06:41,739 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:06:41,739 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 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 14:06:41,782 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:06:44,189 INFO L232 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 78.89% of their original sizes. [2018-08-08 14:06:44,189 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:06:48,772 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:06:48,773 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:06:48,773 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 14:06:48,773 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:06:48,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 14:06:48,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 14:06:48,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-08-08 14:06:48,775 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 15 states. [2018-08-08 14:07:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:07:06,493 INFO L93 Difference]: Finished difference Result 1401 states and 2456 transitions. [2018-08-08 14:07:06,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 14:07:06,494 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 153 [2018-08-08 14:07:06,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:07:06,506 INFO L225 Difference]: With dead ends: 1401 [2018-08-08 14:07:06,506 INFO L226 Difference]: Without dead ends: 1156 [2018-08-08 14:07:06,512 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 99 SyntacticMatches, 40 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=199, Invalid=731, Unknown=0, NotChecked=0, Total=930 [2018-08-08 14:07:06,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2018-08-08 14:07:06,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1033. [2018-08-08 14:07:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1033 states. [2018-08-08 14:07:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1254 transitions. [2018-08-08 14:07:06,567 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1254 transitions. Word has length 153 [2018-08-08 14:07:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:07:06,568 INFO L480 AbstractCegarLoop]: Abstraction has 1033 states and 1254 transitions. [2018-08-08 14:07:06,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 14:07:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1254 transitions. [2018-08-08 14:07:06,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-08-08 14:07:06,574 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:07:06,575 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:06,575 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:07:06,575 INFO L82 PathProgramCache]: Analyzing trace with hash 954835509, now seen corresponding path program 1 times [2018-08-08 14:07:06,575 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:07:06,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-08-08 14:07:06,576 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 14:07:06,583 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:07:06,584 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:07:17,294 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:07:17,294 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 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 14:07:17,300 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:07:19,225 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 78.65% of their original sizes. [2018-08-08 14:07:19,226 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:07:19,723 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:07:19,724 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:07:19,724 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 14:07:19,724 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:07:19,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 14:07:19,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 14:07:19,725 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-08-08 14:07:19,726 INFO L87 Difference]: Start difference. First operand 1033 states and 1254 transitions. Second operand 12 states. [2018-08-08 14:07:31,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:07:31,289 INFO L93 Difference]: Finished difference Result 1466 states and 2038 transitions. [2018-08-08 14:07:31,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-08-08 14:07:31,292 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 179 [2018-08-08 14:07:31,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:07:31,303 INFO L225 Difference]: With dead ends: 1466 [2018-08-08 14:07:31,303 INFO L226 Difference]: Without dead ends: 1221 [2018-08-08 14:07:31,306 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-08-08 14:07:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2018-08-08 14:07:31,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1218. [2018-08-08 14:07:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2018-08-08 14:07:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1452 transitions. [2018-08-08 14:07:31,362 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1452 transitions. Word has length 179 [2018-08-08 14:07:31,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:07:31,362 INFO L480 AbstractCegarLoop]: Abstraction has 1218 states and 1452 transitions. [2018-08-08 14:07:31,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 14:07:31,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1452 transitions. [2018-08-08 14:07:31,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-08-08 14:07:31,370 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:07:31,370 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, 3, 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] [2018-08-08 14:07:31,371 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:07:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash -85710424, now seen corresponding path program 1 times [2018-08-08 14:07:31,371 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:07:31,372 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-08-08 14:07:31,372 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 14:07:31,379 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:07:31,379 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:07:55,478 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:07:55,479 INFO L272 AbstractInterpreter]: Visited 119 different actions 467 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:07:55,481 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:07:57,773 INFO L232 lantSequenceWeakener]: Weakened 262 states. On average, predicates are now at 78.26% of their original sizes. [2018-08-08 14:07:57,774 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:08:04,023 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:08:04,023 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:08:04,024 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-08-08 14:08:04,024 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:08:04,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-08-08 14:08:04,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-08-08 14:08:04,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-08-08 14:08:04,026 INFO L87 Difference]: Start difference. First operand 1218 states and 1452 transitions. Second operand 17 states. [2018-08-08 14:08:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:08:28,920 INFO L93 Difference]: Finished difference Result 3037 states and 4258 transitions. [2018-08-08 14:08:28,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-08 14:08:28,921 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 264 [2018-08-08 14:08:28,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:08:28,932 INFO L225 Difference]: With dead ends: 3037 [2018-08-08 14:08:28,933 INFO L226 Difference]: Without dead ends: 2193 [2018-08-08 14:08:28,938 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 180 SyntacticMatches, 68 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2018-08-08 14:08:28,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-08-08 14:08:29,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1835. [2018-08-08 14:08:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1835 states. [2018-08-08 14:08:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2144 transitions. [2018-08-08 14:08:29,008 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2144 transitions. Word has length 264 [2018-08-08 14:08:29,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:08:29,009 INFO L480 AbstractCegarLoop]: Abstraction has 1835 states and 2144 transitions. [2018-08-08 14:08:29,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-08-08 14:08:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2144 transitions. [2018-08-08 14:08:29,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-08-08 14:08:29,015 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:08:29,016 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 14:08:29,016 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:08:29,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1484744265, now seen corresponding path program 1 times [2018-08-08 14:08:29,017 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:08:29,017 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-08-08 14:08:29,017 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 14:08:29,025 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:08:29,025 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:08:39,118 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:08:55,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:08:55,339 INFO L272 AbstractInterpreter]: Visited 119 different actions 580 times. Merged at 7 different actions 29 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:08:55,348 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:08:57,555 INFO L232 lantSequenceWeakener]: Weakened 287 states. On average, predicates are now at 78.17% of their original sizes. [2018-08-08 14:08:57,555 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:08:57,978 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:08:57,978 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:08:57,978 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 14:08:57,978 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:08:57,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 14:08:57,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 14:08:57,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-08-08 14:08:57,979 INFO L87 Difference]: Start difference. First operand 1835 states and 2144 transitions. Second operand 11 states. [2018-08-08 14:09:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:09:10,980 INFO L93 Difference]: Finished difference Result 2457 states and 3296 transitions. [2018-08-08 14:09:10,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-08-08 14:09:10,982 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 289 [2018-08-08 14:09:10,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:09:10,993 INFO L225 Difference]: With dead ends: 2457 [2018-08-08 14:09:10,993 INFO L226 Difference]: Without dead ends: 2212 [2018-08-08 14:09:10,996 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 299 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2018-08-08 14:09:10,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states. [2018-08-08 14:09:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 2205. [2018-08-08 14:09:11,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2205 states. [2018-08-08 14:09:11,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 2578 transitions. [2018-08-08 14:09:11,071 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 2578 transitions. Word has length 289 [2018-08-08 14:09:11,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:09:11,072 INFO L480 AbstractCegarLoop]: Abstraction has 2205 states and 2578 transitions. [2018-08-08 14:09:11,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 14:09:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 2578 transitions. [2018-08-08 14:09:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2018-08-08 14:09:11,082 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:09:11,083 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:09:11,083 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:09:11,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1849415267, now seen corresponding path program 1 times [2018-08-08 14:09:11,084 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:09:11,084 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 368 with the following transitions: [2018-08-08 14:09:11,084 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [524], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 14:09:11,088 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:09:11,088 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:09:20,627 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:09:44,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:09:44,274 INFO L272 AbstractInterpreter]: Visited 120 different actions 827 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:09:44,280 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:09:46,015 INFO L232 lantSequenceWeakener]: Weakened 365 states. On average, predicates are now at 78.01% of their original sizes. [2018-08-08 14:09:46,016 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:09:46,405 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:09:46,406 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:09:46,406 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 14:09:46,406 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:09:46,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 14:09:46,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 14:09:46,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 14:09:46,407 INFO L87 Difference]: Start difference. First operand 2205 states and 2578 transitions. Second operand 10 states. [2018-08-08 14:09:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:09:57,181 INFO L93 Difference]: Finished difference Result 3232 states and 4057 transitions. [2018-08-08 14:09:57,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-08-08 14:09:57,182 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 367 [2018-08-08 14:09:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:09:57,192 INFO L225 Difference]: With dead ends: 3232 [2018-08-08 14:09:57,192 INFO L226 Difference]: Without dead ends: 2617 [2018-08-08 14:09:57,195 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 374 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-08-08 14:09:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2018-08-08 14:09:57,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2601. [2018-08-08 14:09:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2601 states. [2018-08-08 14:09:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 3058 transitions. [2018-08-08 14:09:57,284 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 3058 transitions. Word has length 367 [2018-08-08 14:09:57,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:09:57,285 INFO L480 AbstractCegarLoop]: Abstraction has 2601 states and 3058 transitions. [2018-08-08 14:09:57,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 14:09:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 3058 transitions. [2018-08-08 14:09:57,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-08-08 14:09:57,297 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:09:57,298 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:09:57,298 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 14:09:57,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1187903624, now seen corresponding path program 1 times [2018-08-08 14:09:57,299 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:09:57,299 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 393 with the following transitions: [2018-08-08 14:09:57,299 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [443], [445], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [624], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 14:09:57,302 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:09:57,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:10:06,803 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:10:30,634 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:10:30,634 INFO L272 AbstractInterpreter]: Visited 120 different actions 829 times. Merged at 8 different actions 55 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:10:30,640 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:10:32,871 INFO L232 lantSequenceWeakener]: Weakened 390 states. On average, predicates are now at 77.96% of their original sizes. [2018-08-08 14:10:32,872 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:10:33,211 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:10:33,212 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:10:33,212 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 14:10:33,212 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:10:33,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 14:10:33,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 14:10:33,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 14:10:33,213 INFO L87 Difference]: Start difference. First operand 2601 states and 3058 transitions. Second operand 10 states. Received shutdown request... [2018-08-08 14:10:36,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 14:10:36,450 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 14:10:36,456 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 14:10:36,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 02:10:36 BoogieIcfgContainer [2018-08-08 14:10:36,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 14:10:36,457 INFO L168 Benchmark]: Toolchain (without parser) took 258667.00 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-08-08 14:10:36,459 INFO L168 Benchmark]: CDTParser took 0.24 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 14:10:36,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 852.43 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 14:10:36,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.63 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 14:10:36,461 INFO L168 Benchmark]: Boogie Preprocessor took 262.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -876.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-08-08 14:10:36,462 INFO L168 Benchmark]: RCFGBuilder took 4204.38 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: 147.9 MB). Peak memory consumption was 147.9 MB. Max. memory is 7.1 GB. [2018-08-08 14:10:36,463 INFO L168 Benchmark]: TraceAbstraction took 253210.73 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -450.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-08-08 14:10:36,468 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 852.43 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 130.63 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 262.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -876.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4204.38 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: 147.9 MB). Peak memory consumption was 147.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 253210.73 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -450.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 187]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 187). Cancelled while BasicCegarLoop was constructing difference of abstraction (2601states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (216 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 253.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 87.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1420 SDtfs, 8731 SDslu, 2861 SDs, 0 SdLazy, 18479 SolverSat, 2038 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.9s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1777 GetRequests, 1530 SyntacticMatches, 108 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1321 ImplicationChecksByTransitivity, 16.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2601occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 138.4s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9954533863433515 AbsIntWeakeningRatio, 0.09970674486803519 AbsIntAvgWeakeningVarsNumRemoved, 436.9876832844575 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 509 StatesRemovedByMinimization, 6 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/Problem14_label06_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_14-10-36-484.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label06_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_14-10-36-484.csv Completed graceful shutdown