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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/eureka_05_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 07:14:14,855 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 07:14:14,857 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 07:14:14,873 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 07:14:14,873 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 07:14:14,874 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 07:14:14,876 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 07:14:14,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 07:14:14,879 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 07:14:14,880 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 07:14:14,881 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 07:14:14,882 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 07:14:14,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 07:14:14,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 07:14:14,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 07:14:14,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 07:14:14,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 07:14:14,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 07:14:14,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 07:14:14,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 07:14:14,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 07:14:14,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 07:14:14,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 07:14:14,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 07:14:14,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 07:14:14,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 07:14:14,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 07:14:14,901 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 07:14:14,902 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 07:14:14,903 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 07:14:14,903 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 07:14:14,904 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 07:14:14,904 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 07:14:14,905 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 07:14:14,906 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 07:14:14,908 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 07:14:14,909 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-08-08 07:14:14,943 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 07:14:14,943 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 07:14:14,944 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 07:14:14,944 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 07:14:14,945 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 07:14:14,945 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 07:14:14,945 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 07:14:14,945 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 07:14:14,945 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 07:14:14,946 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-08-08 07:14:14,946 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 07:14:14,946 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 07:14:14,947 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 07:14:14,947 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 07:14:14,947 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 07:14:14,947 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 07:14:14,948 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 07:14:14,948 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 07:14:14,948 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 07:14:14,948 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 07:14:14,948 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 07:14:14,948 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 07:14:14,949 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 07:14:14,949 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 07:14:14,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 07:14:14,949 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 07:14:14,949 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 07:14:14,950 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 07:14:14,950 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 07:14:14,950 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 07:14:14,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 07:14:14,950 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 07:14:14,951 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 07:14:14,951 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 07:14:15,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 07:14:15,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 07:14:15,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 07:14:15,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 07:14:15,038 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 07:14:15,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/eureka_05_true-unreach-call_true-termination.i [2018-08-08 07:14:15,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c925d28/d3de86a8a38c4336a683cebb5efa9d0d/FLAG543af49ce [2018-08-08 07:14:15,560 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 07:14:15,561 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_05_true-unreach-call_true-termination.i [2018-08-08 07:14:15,569 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c925d28/d3de86a8a38c4336a683cebb5efa9d0d/FLAG543af49ce [2018-08-08 07:14:15,591 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c925d28/d3de86a8a38c4336a683cebb5efa9d0d [2018-08-08 07:14:15,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 07:14:15,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 07:14:15,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:15,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 07:14:15,611 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 07:14:15,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523c516a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15, skipping insertion in model container [2018-08-08 07:14:15,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,775 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 07:14:15,820 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:15,841 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 07:14:15,850 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:15,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15 WrapperNode [2018-08-08 07:14:15,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:15,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:15,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 07:14:15,866 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 07:14:15,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:15,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 07:14:15,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 07:14:15,895 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 07:14:15,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (1/1) ... [2018-08-08 07:14:15,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 07:14:15,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 07:14:15,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 07:14:15,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 07:14:15,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (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 07:14:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 07:14:16,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 07:14:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i__SelectionSort [2018-08-08 07:14:16,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i__SelectionSort [2018-08-08 07:14:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 07:14:16,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 07:14:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 07:14:16,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 07:14:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 07:14:16,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 07:14:16,589 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 07:14:16,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:16 BoogieIcfgContainer [2018-08-08 07:14:16,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 07:14:16,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 07:14:16,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 07:14:16,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 07:14:16,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 07:14:15" (1/3) ... [2018-08-08 07:14:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12febc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:16, skipping insertion in model container [2018-08-08 07:14:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:15" (2/3) ... [2018-08-08 07:14:16,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12febc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:16, skipping insertion in model container [2018-08-08 07:14:16,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:16" (3/3) ... [2018-08-08 07:14:16,599 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_05_true-unreach-call_true-termination.i [2018-08-08 07:14:16,609 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 07:14:16,617 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 07:14:16,668 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 07:14:16,668 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 07:14:16,669 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 07:14:16,669 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 07:14:16,669 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 07:14:16,669 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 07:14:16,669 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 07:14:16,670 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 07:14:16,670 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 07:14:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-08-08 07:14:16,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-08-08 07:14:16,696 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:16,697 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 07:14:16,698 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1318846397, now seen corresponding path program 1 times [2018-08-08 07:14:16,706 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:16,707 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-08-08 07:14:16,709 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [35], [37], [41], [54], [57], [61], [66], [74], [77], [79], [85], [86], [87], [89], [90], [91] [2018-08-08 07:14:16,748 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:16,748 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:16,816 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:16,817 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-08-08 07:14:16,843 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:16,886 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 100% of their original sizes. [2018-08-08 07:14:16,887 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:16,889 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:16,891 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:16,891 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-08-08 07:14:16,892 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:16,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-08-08 07:14:16,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-08-08 07:14:16,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 07:14:16,908 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-08-08 07:14:16,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:16,937 INFO L93 Difference]: Finished difference Result 63 states and 81 transitions. [2018-08-08 07:14:16,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-08-08 07:14:16,939 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-08-08 07:14:16,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:16,949 INFO L225 Difference]: With dead ends: 63 [2018-08-08 07:14:16,949 INFO L226 Difference]: Without dead ends: 32 [2018-08-08 07:14:16,953 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 07:14:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-08-08 07:14:16,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-08-08 07:14:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-08-08 07:14:16,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-08-08 07:14:16,997 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 19 [2018-08-08 07:14:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:16,998 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-08-08 07:14:16,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-08-08 07:14:16,999 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-08-08 07:14:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-08-08 07:14:17,000 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:17,000 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] [2018-08-08 07:14:17,001 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:17,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1884353144, now seen corresponding path program 1 times [2018-08-08 07:14:17,001 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:17,002 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-08-08 07:14:17,002 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [37], [41], [45], [48], [57], [61], [66], [74], [77], [79], [85], [86], [87], [89], [90], [91] [2018-08-08 07:14:17,004 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:17,004 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:17,014 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:17,015 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-08-08 07:14:17,044 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:17,061 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 38.89% of their original sizes. [2018-08-08 07:14:17,061 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:17,085 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:17,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:17,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-08 07:14:17,086 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:17,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-08 07:14:17,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-08 07:14:17,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-08 07:14:17,088 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 4 states. [2018-08-08 07:14:17,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:17,235 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-08-08 07:14:17,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-08 07:14:17,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-08-08 07:14:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:17,238 INFO L225 Difference]: With dead ends: 58 [2018-08-08 07:14:17,239 INFO L226 Difference]: Without dead ends: 35 [2018-08-08 07:14:17,241 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-08 07:14:17,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-08-08 07:14:17,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-08-08 07:14:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-08-08 07:14:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-08-08 07:14:17,253 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 21 [2018-08-08 07:14:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:17,253 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-08-08 07:14:17,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-08 07:14:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-08-08 07:14:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-08-08 07:14:17,254 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:17,255 INFO L376 BasicCegarLoop]: trace histogram [2, 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 07:14:17,255 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:17,255 INFO L82 PathProgramCache]: Analyzing trace with hash 362283247, now seen corresponding path program 1 times [2018-08-08 07:14:17,256 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:17,256 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-08-08 07:14:17,256 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [37], [41], [45], [48], [50], [52], [57], [61], [66], [74], [77], [79], [85], [86], [87], [89], [90], [91] [2018-08-08 07:14:17,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:17,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:17,280 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:17,280 INFO L272 AbstractInterpreter]: Visited 14 different actions 34 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-08-08 07:14:17,292 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:17,308 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 40% of their original sizes. [2018-08-08 07:14:17,309 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:17,358 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:17,359 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:17,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 07:14:17,359 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:17,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 07:14:17,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 07:14:17,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 07:14:17,360 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 6 states. [2018-08-08 07:14:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:17,746 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-08-08 07:14:17,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 07:14:17,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-08-08 07:14:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:17,751 INFO L225 Difference]: With dead ends: 59 [2018-08-08 07:14:17,751 INFO L226 Difference]: Without dead ends: 46 [2018-08-08 07:14:17,752 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 07:14:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-08-08 07:14:17,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2018-08-08 07:14:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-08-08 07:14:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-08-08 07:14:17,764 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2018-08-08 07:14:17,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:17,766 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-08-08 07:14:17,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 07:14:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-08-08 07:14:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-08-08 07:14:17,768 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:17,768 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:17,769 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:17,769 INFO L82 PathProgramCache]: Analyzing trace with hash -314923675, now seen corresponding path program 1 times [2018-08-08 07:14:17,769 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:17,769 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-08-08 07:14:17,771 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [11], [15], [18], [31], [33], [37], [41], [45], [48], [50], [52], [57], [61], [66], [74], [77], [79], [85], [86], [87], [89], [90], [91] [2018-08-08 07:14:17,773 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:17,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:17,797 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:17,798 INFO L272 AbstractInterpreter]: Visited 17 different actions 37 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-08-08 07:14:17,799 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:17,828 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 36.19% of their original sizes. [2018-08-08 07:14:17,828 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:17,884 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:17,885 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:17,885 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-08-08 07:14:17,885 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:17,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-08-08 07:14:17,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-08-08 07:14:17,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-08-08 07:14:17,886 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 7 states. [2018-08-08 07:14:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:18,157 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2018-08-08 07:14:18,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-08 07:14:18,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-08-08 07:14:18,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:18,159 INFO L225 Difference]: With dead ends: 71 [2018-08-08 07:14:18,159 INFO L226 Difference]: Without dead ends: 50 [2018-08-08 07:14:18,160 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-08-08 07:14:18,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-08-08 07:14:18,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2018-08-08 07:14:18,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-08-08 07:14:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-08-08 07:14:18,169 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 30 [2018-08-08 07:14:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:18,170 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-08-08 07:14:18,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-08-08 07:14:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-08-08 07:14:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-08-08 07:14:18,171 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:18,171 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:18,172 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:18,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1174102332, now seen corresponding path program 1 times [2018-08-08 07:14:18,172 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:18,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-08-08 07:14:18,173 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [11], [15], [18], [20], [23], [27], [31], [33], [37], [41], [45], [48], [50], [52], [57], [61], [66], [74], [77], [79], [85], [86], [87], [89], [90], [91] [2018-08-08 07:14:18,175 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:18,175 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:18,215 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 07:14:18,215 INFO L272 AbstractInterpreter]: Visited 31 different actions 93 times. Merged at 12 different actions 48 times. Widened at 2 different actions 3 times. Found 5 fixpoints after 4 different actions. Largest state had 10 variables. [2018-08-08 07:14:18,244 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 07:14:18,260 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 07:14:18,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 07:14:18 BoogieIcfgContainer [2018-08-08 07:14:18,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 07:14:18,262 INFO L168 Benchmark]: Toolchain (without parser) took 2659.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -697.3 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:18,264 INFO L168 Benchmark]: CDTParser took 0.26 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 07:14:18,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.58 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 07:14:18,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 07:14:18,266 INFO L168 Benchmark]: Boogie Preprocessor took 32.84 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 07:14:18,267 INFO L168 Benchmark]: RCFGBuilder took 655.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:18,268 INFO L168 Benchmark]: TraceAbstraction took 1670.02 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: 80.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:18,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 260.58 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 Procedure Inliner took 28.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.84 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 655.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1670.02 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: 80.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] int array[5]; [L12] int array[5]; [L12] int array[5]; [L12] int array[5]; [L12] int array[5]; [L13] int n=5; [L31] int array[5],i; [L33] i=5 -1 [L33] COND TRUE i>=0 [L34] array[i]=i [L33] i-- [L33] i-- [L33] COND FALSE !(i>=0) [L36] CALL SelectionSort() [L17] int lh, rh, i, temp; [L19] lh = 0 [L19] COND TRUE lh < n [L20] rh = lh [L21] i = lh + 1 [L21] COND TRUE i < n [L22] COND TRUE array[i] < array[rh] [L22] rh = i [L21] i++ [L21] i++ [L21] COND FALSE !(i < n) [L23] temp = array[lh] [L24] array[lh] = array[rh] [L25] array[rh] = temp [L19] lh++ [L19] lh++ [L19] COND FALSE, RET !(lh < n) [L36] SelectionSort() [L38] i=0 [L38] COND TRUE i<5 [L39] CALL __VERIFIER_assert(array[i]==i) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. UNKNOWN Result, 1.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 114 SDtfs, 127 SDslu, 99 SDs, 0 SdLazy, 149 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.8962962962962961 AbsIntWeakeningRatio, 0.5111111111111111 AbsIntAvgWeakeningVarsNumRemoved, 0.35555555555555557 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 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: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_05_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_07-14-18-287.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_05_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_07-14-18-287.csv Received shutdown request...