java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label25_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:17:52,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:17:52,666 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:17:52,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:17:52,685 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:17:52,686 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:17:52,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:17:52,690 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:17:52,692 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:17:52,693 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:17:52,694 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:17:52,694 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:17:52,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:17:52,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:17:52,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:17:52,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:17:52,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:17:52,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:17:52,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:17:52,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:17:52,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:17:52,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:17:52,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:17:52,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:17:52,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:17:52,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:17:52,712 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:17:52,713 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:17:52,714 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:17:52,715 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:17:52,715 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:17:52,716 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:17:52,717 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:17:52,717 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:17:52,718 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:17:52,719 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:17:52,719 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 20:17:52,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:17:52,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:17:52,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:17:52,751 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:17:52,751 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:17:52,755 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:17:52,755 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:17:52,756 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:17:52,756 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:17:52,756 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:17:52,756 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:17:52,757 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:17:52,758 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:17:52,758 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:17:52,758 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:17:52,759 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:17:52,760 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:17:52,760 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:17:52,760 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:17:52,760 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:17:52,760 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:17:52,761 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:17:52,761 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:17:52,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:17:52,761 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:17:52,763 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:17:52,763 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:17:52,763 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:17:52,763 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:17:52,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:17:52,764 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:17:52,764 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:17:52,765 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:17:52,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:17:52,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:17:52,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:17:52,867 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:17:52,868 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:17:52,869 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label25_true-unreach-call_false-termination.c [2018-07-23 20:17:53,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7488c2ec3/fcf0bac6f6654413b3c146cb676dbc9e/FLAG83af4556e [2018-07-23 20:17:53,707 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:17:53,708 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label25_true-unreach-call_false-termination.c [2018-07-23 20:17:53,729 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7488c2ec3/fcf0bac6f6654413b3c146cb676dbc9e/FLAG83af4556e [2018-07-23 20:17:53,752 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7488c2ec3/fcf0bac6f6654413b3c146cb676dbc9e [2018-07-23 20:17:53,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:17:53,766 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:17:53,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:17:53,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:17:53,776 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:17:53,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:17:53" (1/1) ... [2018-07-23 20:17:53,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9c81f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:53, skipping insertion in model container [2018-07-23 20:17:53,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:17:53" (1/1) ... [2018-07-23 20:17:54,027 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:17:54,402 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:17:54,426 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:17:54,565 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:17:54,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54 WrapperNode [2018-07-23 20:17:54,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:17:54,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:17:54,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:17:54,630 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:17:54,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:17:54,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:17:54,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:17:54,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:17:54,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (1/1) ... [2018-07-23 20:17:54,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:17:54,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:17:54,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:17:54,925 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:17:54,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (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 [2018-07-23 20:17:55,214 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 [2018-07-23 20:17:55,214 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 [2018-07-23 20:17:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:17:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:17:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:17:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:17:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:17:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:17:58,745 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:17:58,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:17:58 BoogieIcfgContainer [2018-07-23 20:17:58,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:17:58,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:17:58,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:17:58,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:17:58,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:17:53" (1/3) ... [2018-07-23 20:17:58,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa3b46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:17:58, skipping insertion in model container [2018-07-23 20:17:58,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:17:54" (2/3) ... [2018-07-23 20:17:58,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa3b46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:17:58, skipping insertion in model container [2018-07-23 20:17:58,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:17:58" (3/3) ... [2018-07-23 20:17:58,760 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label25_true-unreach-call_false-termination.c [2018-07-23 20:17:58,778 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:17:58,793 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:17:58,875 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:17:58,876 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:17:58,877 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:17:58,877 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:17:58,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:17:58,877 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:17:58,877 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:17:58,878 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:17:58,878 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:17:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-07-23 20:17:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 20:17:58,961 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:17:58,968 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:17:58,968 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:17:58,977 INFO L82 PathProgramCache]: Analyzing trace with hash -786292128, now seen corresponding path program 1 times [2018-07-23 20:17:58,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:17:59,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:17:59,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:17:59,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:17:59,067 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:17:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:17:59,747 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:17:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:17:59,922 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:17:59,923 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:17:59,923 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:17:59,932 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:17:59,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:17:59,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:17:59,955 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-07-23 20:18:01,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:18:01,794 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-07-23 20:18:01,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:18:01,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2018-07-23 20:18:01,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:18:01,821 INFO L225 Difference]: With dead ends: 550 [2018-07-23 20:18:01,821 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 20:18:01,829 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:18:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 20:18:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 20:18:01,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 20:18:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-07-23 20:18:01,926 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 126 [2018-07-23 20:18:01,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:18:01,928 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-07-23 20:18:01,928 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:18:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-07-23 20:18:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 20:18:01,936 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:18:01,937 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:18:01,937 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:18:01,938 INFO L82 PathProgramCache]: Analyzing trace with hash -165950467, now seen corresponding path program 1 times [2018-07-23 20:18:01,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:18:01,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:18:01,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:18:01,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:18:01,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:18:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:18:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:18:02,193 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:18:02,194 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:18:02,194 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:18:02,197 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:18:02,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:18:02,197 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:18:02,198 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-07-23 20:18:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:18:04,424 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-07-23 20:18:04,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:18:04,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-07-23 20:18:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:18:04,444 INFO L225 Difference]: With dead ends: 1075 [2018-07-23 20:18:04,445 INFO L226 Difference]: Without dead ends: 741 [2018-07-23 20:18:04,453 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:18:04,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-07-23 20:18:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-07-23 20:18:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-07-23 20:18:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-07-23 20:18:04,535 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 137 [2018-07-23 20:18:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:18:04,536 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-07-23 20:18:04,536 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:18:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-07-23 20:18:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 20:18:04,543 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:18:04,544 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:18:04,544 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:18:04,545 INFO L82 PathProgramCache]: Analyzing trace with hash -300716242, now seen corresponding path program 1 times [2018-07-23 20:18:04,545 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:18:04,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:18:04,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:18:04,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:18:04,547 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:18:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:18:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:18:04,823 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:18:04,823 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:18:04,825 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-07-23 20:18:04,828 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [15], [16], [20], [24], [28], [32], [36], [40], [44], [48], [52], [56], [60], [63], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [455], [463], [471], [479], [487], [495], [503], [511], [519], [527], [535], [543], [551], [559], [567], [575], [583], [591], [599], [607], [615], [623], [631], [639], [643], [645], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:18:04,951 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:18:04,952 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:19:41,237 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:19:41,238 INFO L272 AbstractInterpreter]: Visited 108 different actions 173 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-23 20:19:41,252 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:19:55,872 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 80.38% of their original sizes. [2018-07-23 20:19:55,873 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:19:59,242 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:19:59,243 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:19:59,243 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-23 20:19:59,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:19:59,244 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 20:19:59,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 20:19:59,244 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-07-23 20:19:59,245 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 17 states. [2018-07-23 20:20:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:20:58,672 INFO L93 Difference]: Finished difference Result 1687 states and 2655 transitions. [2018-07-23 20:20:58,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 20:20:58,673 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 162 [2018-07-23 20:20:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:20:58,678 INFO L225 Difference]: With dead ends: 1687 [2018-07-23 20:20:58,679 INFO L226 Difference]: Without dead ends: 782 [2018-07-23 20:20:58,682 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 20:20:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2018-07-23 20:20:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2018-07-23 20:20:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2018-07-23 20:20:58,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1109 transitions. [2018-07-23 20:20:58,712 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1109 transitions. Word has length 162 [2018-07-23 20:20:58,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:20:58,712 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1109 transitions. [2018-07-23 20:20:58,713 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 20:20:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1109 transitions. [2018-07-23 20:20:58,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 20:20:58,717 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:20:58,718 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:20:58,718 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:20:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1202855929, now seen corresponding path program 1 times [2018-07-23 20:20:58,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:20:58,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:20:58,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:20:58,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:20:58,720 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:20:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:20:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-23 20:20:59,031 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:20:59,031 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:20:59,031 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-07-23 20:20:59,032 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [8], [12], [16], [20], [24], [28], [31], [32], [36], [40], [44], [48], [52], [56], [60], [63], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [455], [463], [471], [479], [487], [495], [503], [511], [519], [527], [535], [543], [551], [559], [567], [575], [583], [591], [599], [607], [615], [623], [631], [639], [643], [645], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:20:59,040 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:20:59,040 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 20:21:54,555 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 20:21:54,557 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 20:21:54,558 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 20:21:54,559 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:21:54,559 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:21:54,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:21:54,580 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 20:21:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:21:54,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 20:21:54,783 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 20:21:54,984 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:21:54,985 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:21:54,992 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:21:54,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:21:54 BoogieIcfgContainer [2018-07-23 20:21:54,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:21:54,993 INFO L168 Benchmark]: Toolchain (without parser) took 241227.87 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 650.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:21:54,995 INFO L168 Benchmark]: CDTParser took 0.79 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. [2018-07-23 20:21:54,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 860.87 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:21:54,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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. [2018-07-23 20:21:54,997 INFO L168 Benchmark]: Boogie Preprocessor took 142.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:21:54,997 INFO L168 Benchmark]: RCFGBuilder took 3821.81 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.2 MB). Free memory was 1.3 GB in the beginning and 2.0 GB in the end (delta: -699.2 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:21:54,999 INFO L168 Benchmark]: TraceAbstraction took 236244.60 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -794.3 MB). Peak memory consumption was 590.3 MB. Max. memory is 7.1 GB. [2018-07-23 20:21:55,006 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 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. * CACSL2BoogieTranslator took 860.87 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 142.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3821.81 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.2 MB). Free memory was 1.3 GB in the beginning and 2.0 GB in the end (delta: -699.2 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236244.60 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -794.3 MB). Peak memory consumption was 590.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 533]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 533). Cancelled while BasicCegarLoop was analyzing trace of length 176 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 236.1s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 63.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 489 SDtfs, 1738 SDslu, 733 SDs, 0 SdLazy, 3064 SolverSat, 608 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 192 GetRequests, 150 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=782occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 151.9s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9945029973813492 AbsIntWeakeningRatio, 0.21739130434782608 AbsIntAvgWeakeningVarsNumRemoved, 151.35403726708074 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 422 ConstructedInterpolants, 0 QuantifiedInterpolants, 130777 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 48/50 InterpolantCoveringCapability, 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/Problem01_label25_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-21-55-024.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label25_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-21-55-024.csv Completed graceful shutdown