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_label09_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 14:07:14,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 14:07:14,428 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 14:07:14,441 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 14:07:14,441 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 14:07:14,443 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 14:07:14,444 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 14:07:14,445 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 14:07:14,447 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 14:07:14,448 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 14:07:14,449 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 14:07:14,449 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 14:07:14,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 14:07:14,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 14:07:14,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 14:07:14,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 14:07:14,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 14:07:14,456 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 14:07:14,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 14:07:14,459 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 14:07:14,460 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 14:07:14,461 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 14:07:14,464 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 14:07:14,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 14:07:14,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 14:07:14,465 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 14:07:14,466 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 14:07:14,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 14:07:14,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 14:07:14,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 14:07:14,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 14:07:14,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 14:07:14,470 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 14:07:14,471 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 14:07:14,472 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 14:07:14,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 14:07:14,472 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 14:07:14,503 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 14:07:14,504 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 14:07:14,507 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 14:07:14,507 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 14:07:14,507 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 14:07:14,507 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 14:07:14,507 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 14:07:14,508 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 14:07:14,508 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 14:07:14,508 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 14:07:14,508 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 14:07:14,508 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 14:07:14,509 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 14:07:14,510 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 14:07:14,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 14:07:14,510 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 14:07:14,511 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 14:07:14,511 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 14:07:14,511 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 14:07:14,511 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 14:07:14,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 14:07:14,511 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 14:07:14,512 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 14:07:14,512 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 14:07:14,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 14:07:14,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 14:07:14,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 14:07:14,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 14:07:14,514 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 14:07:14,514 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 14:07:14,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 14:07:14,515 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 14:07:14,515 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 14:07:14,515 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 14:07:14,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 14:07:14,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 14:07:14,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 14:07:14,599 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 14:07:14,599 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 14:07:14,600 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label09_true-unreach-call_false-termination.c [2018-08-08 14:07:15,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbc99bc1/1450b40b366c46238ab77e7e99b18d4a/FLAG7fdbb48fd [2018-08-08 14:07:15,275 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 14:07:15,278 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label09_true-unreach-call_false-termination.c [2018-08-08 14:07:15,300 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbc99bc1/1450b40b366c46238ab77e7e99b18d4a/FLAG7fdbb48fd [2018-08-08 14:07:15,325 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbc99bc1/1450b40b366c46238ab77e7e99b18d4a [2018-08-08 14:07:15,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 14:07:15,343 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 14:07:15,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 14:07:15,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 14:07:15,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 14:07:15,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:07:15" (1/1) ... [2018-08-08 14:07:15,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1269c6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:15, skipping insertion in model container [2018-08-08 14:07:15,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:07:15" (1/1) ... [2018-08-08 14:07:15,624 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 14:07:16,019 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:07:16,035 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 14:07:16,224 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:07:16,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16 WrapperNode [2018-08-08 14:07:16,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 14:07:16,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 14:07:16,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 14:07:16,284 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 14:07:16,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 14:07:16,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 14:07:16,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 14:07:16,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 14:07:16,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (1/1) ... [2018-08-08 14:07:16,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 14:07:16,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 14:07:16,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 14:07:16,733 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 14:07:16,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (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 14:07:16,811 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 14:07:16,811 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 14:07:16,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 14:07:16,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 14:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 14:07:16,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 14:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 14:07:16,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 14:07:20,669 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 14:07:20,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:07:20 BoogieIcfgContainer [2018-08-08 14:07:20,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 14:07:20,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 14:07:20,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 14:07:20,675 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 14:07:20,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 02:07:15" (1/3) ... [2018-08-08 14:07:20,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d8e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:07:20, skipping insertion in model container [2018-08-08 14:07:20,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:16" (2/3) ... [2018-08-08 14:07:20,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d8e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:07:20, skipping insertion in model container [2018-08-08 14:07:20,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:07:20" (3/3) ... [2018-08-08 14:07:20,679 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label09_true-unreach-call_false-termination.c [2018-08-08 14:07:20,690 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 14:07:20,700 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 14:07:20,757 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 14:07:20,758 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 14:07:20,758 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 14:07:20,758 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 14:07:20,759 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 14:07:20,759 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 14:07:20,759 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 14:07:20,759 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 14:07:20,759 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 14:07:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-08-08 14:07:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-08-08 14:07:20,803 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:07:20,804 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] [2018-08-08 14:07:20,806 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 14:07:20,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1201508772, now seen corresponding path program 1 times [2018-08-08 14:07:20,813 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:07:20,814 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-08-08 14:07:20,817 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], [315], [317], [947], [948], [952], [956], [962], [966], [973], [974], [975], [977] [2018-08-08 14:07:20,890 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:07:20,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:07:22,722 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:07:22,723 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 14:07:22,743 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:07:23,842 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 80.51% of their original sizes. [2018-08-08 14:07:23,842 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:07:24,137 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:07:24,139 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:07:24,140 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 14:07:24,140 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:07:24,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 14:07:24,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 14:07:24,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:07:24,158 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-08-08 14:07:30,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:07:30,124 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-08-08 14:07:30,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 14:07:30,128 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-08-08 14:07:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:07:30,149 INFO L225 Difference]: With dead ends: 693 [2018-08-08 14:07:30,149 INFO L226 Difference]: Without dead ends: 436 [2018-08-08 14:07:30,157 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 51 GetRequests, 47 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 14:07:30,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-08-08 14:07:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-08-08 14:07:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-08-08 14:07:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-08-08 14:07:30,250 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 52 [2018-08-08 14:07:30,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:07:30,252 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-08-08 14:07:30,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 14:07:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-08-08 14:07:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-08-08 14:07:30,262 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:07:30,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:30,266 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 14:07:30,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2055758921, now seen corresponding path program 1 times [2018-08-08 14:07:30,266 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:07:30,266 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-08-08 14:07:30,267 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], [315], [317], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [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 14:07:30,280 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:07:30,281 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:07:39,081 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:07:39,081 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 14:07:39,115 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:07:41,262 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 78.54% of their original sizes. [2018-08-08 14:07:41,262 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:07:44,671 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:07:44,671 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:07:44,671 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-08-08 14:07:44,672 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:07:44,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-08-08 14:07:44,674 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-08-08 14:07:44,674 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-08-08 14:07:44,674 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 14 states. [2018-08-08 14:08:02,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:08:02,355 INFO L93 Difference]: Finished difference Result 1340 states and 2335 transitions. [2018-08-08 14:08:02,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-08-08 14:08:02,360 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 137 [2018-08-08 14:08:02,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:08:02,370 INFO L225 Difference]: With dead ends: 1340 [2018-08-08 14:08:02,370 INFO L226 Difference]: Without dead ends: 1095 [2018-08-08 14:08:02,374 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 99 SyntacticMatches, 25 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-08-08 14:08:02,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-08-08 14:08:02,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 850. [2018-08-08 14:08:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-08-08 14:08:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1058 transitions. [2018-08-08 14:08:02,430 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1058 transitions. Word has length 137 [2018-08-08 14:08:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:08:02,431 INFO L480 AbstractCegarLoop]: Abstraction has 850 states and 1058 transitions. [2018-08-08 14:08:02,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-08-08 14:08:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1058 transitions. [2018-08-08 14:08:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-08-08 14:08:02,446 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:08:02,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:02,447 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 14:08:02,449 INFO L82 PathProgramCache]: Analyzing trace with hash 686770165, now seen corresponding path program 1 times [2018-08-08 14:08:02,450 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:08:02,450 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-08-08 14:08:02,450 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], [315], [317], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [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 14:08:02,458 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:08:02,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:08:13,173 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:08:13,173 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 14:08:13,201 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:08:14,888 INFO L232 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 78.33% of their original sizes. [2018-08-08 14:08:14,888 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:08:15,409 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:08:15,410 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:08:15,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 14:08:15,410 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:08:15,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 14:08:15,411 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 14:08:15,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-08-08 14:08:15,412 INFO L87 Difference]: Start difference. First operand 850 states and 1058 transitions. Second operand 12 states. [2018-08-08 14:08:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:08:27,405 INFO L93 Difference]: Finished difference Result 1283 states and 1842 transitions. [2018-08-08 14:08:27,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-08-08 14:08:27,409 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 163 [2018-08-08 14:08:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:08:27,419 INFO L225 Difference]: With dead ends: 1283 [2018-08-08 14:08:27,420 INFO L226 Difference]: Without dead ends: 1038 [2018-08-08 14:08:27,422 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 171 GetRequests, 152 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 14:08:27,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-08-08 14:08:27,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035. [2018-08-08 14:08:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-08-08 14:08:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1256 transitions. [2018-08-08 14:08:27,463 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1256 transitions. Word has length 163 [2018-08-08 14:08:27,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:08:27,463 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1256 transitions. [2018-08-08 14:08:27,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 14:08:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1256 transitions. [2018-08-08 14:08:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-08-08 14:08:27,470 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:08:27,471 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:08:27,471 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 14:08:27,471 INFO L82 PathProgramCache]: Analyzing trace with hash -645958040, now seen corresponding path program 1 times [2018-08-08 14:08:27,472 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:08:27,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-08-08 14:08:27,472 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], [315], [317], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [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 14:08:27,483 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:08:27,483 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:08:52,588 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:08:52,589 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 14:08:52,600 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:08:55,548 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 78.03% of their original sizes. [2018-08-08 14:08:55,548 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:09:00,941 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:09:00,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:09:00,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-08-08 14:09:00,942 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:09:00,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-08-08 14:09:00,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-08-08 14:09:00,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-08-08 14:09:00,945 INFO L87 Difference]: Start difference. First operand 1035 states and 1256 transitions. Second operand 16 states. [2018-08-08 14:09:22,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:09:22,828 INFO L93 Difference]: Finished difference Result 2597 states and 3738 transitions. [2018-08-08 14:09:22,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 14:09:22,829 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 248 [2018-08-08 14:09:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:09:22,841 INFO L225 Difference]: With dead ends: 2597 [2018-08-08 14:09:22,841 INFO L226 Difference]: Without dead ends: 1936 [2018-08-08 14:09:22,845 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 265 GetRequests, 174 SyntacticMatches, 59 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2018-08-08 14:09:22,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-08-08 14:09:22,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1469. [2018-08-08 14:09:22,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2018-08-08 14:09:22,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1742 transitions. [2018-08-08 14:09:22,910 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1742 transitions. Word has length 248 [2018-08-08 14:09:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:09:22,911 INFO L480 AbstractCegarLoop]: Abstraction has 1469 states and 1742 transitions. [2018-08-08 14:09:22,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-08-08 14:09:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1742 transitions. [2018-08-08 14:09:22,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-08-08 14:09:22,917 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:09:22,918 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:09:22,918 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 14:09:22,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1041591031, now seen corresponding path program 1 times [2018-08-08 14:09:22,919 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:09:22,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-08-08 14:09:22,919 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], [315], [317], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [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 14:09:22,932 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:09:22,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:09:33,147 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:09:49,370 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:09:49,371 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 14:09:49,375 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:09:52,366 INFO L232 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 77.96% of their original sizes. [2018-08-08 14:09:52,367 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:09:52,836 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:09:52,836 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:09:52,836 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 14:09:52,837 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:09:52,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 14:09:52,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 14:09:52,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-08-08 14:09:52,838 INFO L87 Difference]: Start difference. First operand 1469 states and 1742 transitions. Second operand 11 states. [2018-08-08 14:10:06,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:10:06,055 INFO L93 Difference]: Finished difference Result 2091 states and 2894 transitions. [2018-08-08 14:10:06,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-08-08 14:10:06,056 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 273 [2018-08-08 14:10:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:10:06,066 INFO L225 Difference]: With dead ends: 2091 [2018-08-08 14:10:06,066 INFO L226 Difference]: Without dead ends: 1846 [2018-08-08 14:10:06,068 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 283 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2018-08-08 14:10:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2018-08-08 14:10:06,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1839. [2018-08-08 14:10:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1839 states. [2018-08-08 14:10:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2176 transitions. [2018-08-08 14:10:06,139 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2176 transitions. Word has length 273 [2018-08-08 14:10:06,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:10:06,140 INFO L480 AbstractCegarLoop]: Abstraction has 1839 states and 2176 transitions. [2018-08-08 14:10:06,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 14:10:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2176 transitions. [2018-08-08 14:10:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-08-08 14:10:06,149 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:10:06,149 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:10:06,150 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 14:10:06,150 INFO L82 PathProgramCache]: Analyzing trace with hash -975855267, now seen corresponding path program 1 times [2018-08-08 14:10:06,150 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:10:06,150 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 352 with the following transitions: [2018-08-08 14:10:06,151 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], [315], [317], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [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 14:10:06,159 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:10:06,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:10:15,571 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:10:39,554 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:10:39,555 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 14:10:39,561 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:10:41,180 INFO L232 lantSequenceWeakener]: Weakened 349 states. On average, predicates are now at 77.84% of their original sizes. [2018-08-08 14:10:41,180 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:10:41,502 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:10:41,502 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:10:41,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 14:10:41,503 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:10:41,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 14:10:41,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 14:10:41,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 14:10:41,504 INFO L87 Difference]: Start difference. First operand 1839 states and 2176 transitions. Second operand 10 states. [2018-08-08 14:10:49,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:10:49,298 INFO L93 Difference]: Finished difference Result 2866 states and 3655 transitions. [2018-08-08 14:10:49,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-08-08 14:10:49,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 351 [2018-08-08 14:10:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:10:49,309 INFO L225 Difference]: With dead ends: 2866 [2018-08-08 14:10:49,310 INFO L226 Difference]: Without dead ends: 2251 [2018-08-08 14:10:49,313 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 358 GetRequests, 342 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 14:10:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2018-08-08 14:10:49,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2235. [2018-08-08 14:10:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2018-08-08 14:10:49,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2656 transitions. [2018-08-08 14:10:49,395 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2656 transitions. Word has length 351 [2018-08-08 14:10:49,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:10:49,396 INFO L480 AbstractCegarLoop]: Abstraction has 2235 states and 2656 transitions. [2018-08-08 14:10:49,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 14:10:49,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2656 transitions. [2018-08-08 14:10:49,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2018-08-08 14:10:49,406 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:10:49,407 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:10:49,407 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 14:10:49,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1241887544, now seen corresponding path program 1 times [2018-08-08 14:10:49,408 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:10:49,408 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 377 with the following transitions: [2018-08-08 14:10:49,408 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], [315], [317], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [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 14:10:49,411 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:10:49,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:10:59,437 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:11:25,233 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:11:25,234 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 14:11:25,238 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:11:27,589 INFO L232 lantSequenceWeakener]: Weakened 374 states. On average, predicates are now at 77.8% of their original sizes. [2018-08-08 14:11:27,589 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:11:27,922 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:11:27,923 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:11:27,923 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 14:11:27,923 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:11:27,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 14:11:27,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 14:11:27,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 14:11:27,925 INFO L87 Difference]: Start difference. First operand 2235 states and 2656 transitions. Second operand 10 states. Received shutdown request... [2018-08-08 14:11:33,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 14:11:33,891 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 14:11:33,896 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 14:11:33,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 02:11:33 BoogieIcfgContainer [2018-08-08 14:11:33,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 14:11:33,897 INFO L168 Benchmark]: Toolchain (without parser) took 258558.58 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 2.3 GB in the end (delta: -849.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-08-08 14:11:33,899 INFO L168 Benchmark]: CDTParser took 0.20 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 14:11:33,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 938.72 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 14:11:33,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-08 14:11:33,901 INFO L168 Benchmark]: Boogie Preprocessor took 330.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -886.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2018-08-08 14:11:33,902 INFO L168 Benchmark]: RCFGBuilder took 3936.88 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: 137.1 MB). Peak memory consumption was 137.1 MB. Max. memory is 7.1 GB. [2018-08-08 14:11:33,903 INFO L168 Benchmark]: TraceAbstraction took 253225.19 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 2.3 GB in the end (delta: -152.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-08-08 14:11:33,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 938.72 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 118.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 330.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -886.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3936.88 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: 137.1 MB). Peak memory consumption was 137.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 253225.19 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 2.3 GB in the end (delta: -152.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was constructing difference of abstraction (2235states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (1498 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, 84.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1438 SDtfs, 9598 SDslu, 2296 SDs, 0 SdLazy, 16423 SolverSat, 2287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.5s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1659 GetRequests, 1444 SyntacticMatches, 84 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 142.3s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9951337248684333 AbsIntWeakeningRatio, 0.10671688637790333 AbsIntAvgWeakeningVarsNumRemoved, 449.5317011927181 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 740 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_label09_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_14-11-33-926.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label09_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_14-11-33-926.csv Completed graceful shutdown