java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:35:30,844 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:35:30,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:35:30,864 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:35:30,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:35:30,865 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:35:30,866 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:35:30,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:35:30,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:35:30,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:35:30,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:35:30,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:35:30,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:35:30,874 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:35:30,875 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:35:30,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:35:30,876 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:35:30,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:35:30,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:35:30,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:35:30,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:35:30,887 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:35:30,891 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:35:30,891 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:35:30,892 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:35:30,896 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:35:30,897 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:35:30,898 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:35:30,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:35:30,902 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:35:30,903 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:35:30,905 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:35:30,906 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:35:30,907 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:35:30,908 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:35:30,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:35:30,909 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:35:30,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:35:30,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:35:30,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:35:30,939 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:35:30,940 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:35:30,940 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:35:30,940 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:35:30,940 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:35:30,940 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:35:30,941 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:35:30,941 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:35:30,941 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:35:30,942 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:35:30,942 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:35:30,943 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:35:30,943 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:35:30,943 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:35:30,943 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:35:30,943 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:35:30,943 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:35:30,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:35:30,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:35:30,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:35:30,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:35:30,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:35:30,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:35:30,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:35:30,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:35:30,947 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:35:30,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:35:30,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:35:30,948 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:35:30,948 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:35:30,948 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:35:31,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:35:31,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:35:31,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:35:31,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:35:31,019 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:35:31,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label02_true-unreach-call.c [2018-10-24 19:35:31,085 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f9f7926ea/c647a4e82d2e4c56806eed6ab86a1101/FLAG66753d4d5 [2018-10-24 19:35:31,775 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:35:31,776 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label02_true-unreach-call.c [2018-10-24 19:35:31,798 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f9f7926ea/c647a4e82d2e4c56806eed6ab86a1101/FLAG66753d4d5 [2018-10-24 19:35:31,814 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f9f7926ea/c647a4e82d2e4c56806eed6ab86a1101 [2018-10-24 19:35:31,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:35:31,826 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:35:31,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:35:31,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:35:31,831 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:35:31,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:31" (1/1) ... [2018-10-24 19:35:31,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71739530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:31, skipping insertion in model container [2018-10-24 19:35:31,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:31" (1/1) ... [2018-10-24 19:35:31,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:35:31,928 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:35:32,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:35:32,587 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:35:32,875 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:35:32,900 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:35:32,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32 WrapperNode [2018-10-24 19:35:32,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:35:32,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:35:32,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:35:32,903 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:35:32,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:32,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:35:33,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:35:33,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:35:33,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:35:33,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... [2018-10-24 19:35:33,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:35:33,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:35:33,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:35:33,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:35:33,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:35:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:35:33,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:35:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:35:33,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:35:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:35:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:35:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:35:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:35:38,655 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:35:38,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:38 BoogieIcfgContainer [2018-10-24 19:35:38,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:35:38,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:35:38,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:35:38,668 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:35:38,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:35:31" (1/3) ... [2018-10-24 19:35:38,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f4c4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:38, skipping insertion in model container [2018-10-24 19:35:38,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:32" (2/3) ... [2018-10-24 19:35:38,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f4c4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:38, skipping insertion in model container [2018-10-24 19:35:38,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:38" (3/3) ... [2018-10-24 19:35:38,680 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label02_true-unreach-call.c [2018-10-24 19:35:38,693 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:35:38,710 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:35:38,732 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:35:38,793 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:35:38,794 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:35:38,794 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:35:38,794 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:35:38,794 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:35:38,795 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:35:38,795 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:35:38,795 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:35:38,848 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-24 19:35:38,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-24 19:35:38,880 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:38,882 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:35:38,890 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:38,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:38,899 INFO L82 PathProgramCache]: Analyzing trace with hash -598377940, now seen corresponding path program 1 times [2018-10-24 19:35:38,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:38,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:38,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:38,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:38,965 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:39,963 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:35:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:35:40,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:35:40,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:35:40,145 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:40,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:35:40,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:35:40,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:35:40,167 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-24 19:35:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:35:42,478 INFO L93 Difference]: Finished difference Result 838 states and 1479 transitions. [2018-10-24 19:35:42,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:35:42,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2018-10-24 19:35:42,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:35:42,506 INFO L225 Difference]: With dead ends: 838 [2018-10-24 19:35:42,506 INFO L226 Difference]: Without dead ends: 524 [2018-10-24 19:35:42,513 INFO L605 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 [2018-10-24 19:35:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-10-24 19:35:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2018-10-24 19:35:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-10-24 19:35:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 890 transitions. [2018-10-24 19:35:42,611 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 890 transitions. Word has length 211 [2018-10-24 19:35:42,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:35:42,614 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 890 transitions. [2018-10-24 19:35:42,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:35:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 890 transitions. [2018-10-24 19:35:42,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-24 19:35:42,624 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:42,625 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:35:42,625 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:42,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:42,626 INFO L82 PathProgramCache]: Analyzing trace with hash 500762469, now seen corresponding path program 1 times [2018-10-24 19:35:42,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:42,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:42,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:42,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:42,628 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:35:43,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:35:43,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:35:43,076 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:43,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:35:43,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:35:43,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:35:43,083 INFO L87 Difference]: Start difference. First operand 522 states and 890 transitions. Second operand 6 states. [2018-10-24 19:35:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:35:46,354 INFO L93 Difference]: Finished difference Result 1581 states and 2759 transitions. [2018-10-24 19:35:46,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:35:46,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2018-10-24 19:35:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:35:46,384 INFO L225 Difference]: With dead ends: 1581 [2018-10-24 19:35:46,385 INFO L226 Difference]: Without dead ends: 1065 [2018-10-24 19:35:46,388 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:35:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2018-10-24 19:35:46,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1023. [2018-10-24 19:35:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-10-24 19:35:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1733 transitions. [2018-10-24 19:35:46,451 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1733 transitions. Word has length 221 [2018-10-24 19:35:46,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:35:46,452 INFO L481 AbstractCegarLoop]: Abstraction has 1023 states and 1733 transitions. [2018-10-24 19:35:46,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:35:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1733 transitions. [2018-10-24 19:35:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-24 19:35:46,458 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:46,458 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:35:46,458 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:46,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:46,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1880963624, now seen corresponding path program 1 times [2018-10-24 19:35:46,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:46,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:46,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:46,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:46,460 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:35:46,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:35:46,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:35:46,865 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:46,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:35:46,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:35:46,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:35:46,868 INFO L87 Difference]: Start difference. First operand 1023 states and 1733 transitions. Second operand 3 states. [2018-10-24 19:35:49,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:35:49,709 INFO L93 Difference]: Finished difference Result 2901 states and 5098 transitions. [2018-10-24 19:35:49,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:35:49,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2018-10-24 19:35:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:35:49,729 INFO L225 Difference]: With dead ends: 2901 [2018-10-24 19:35:49,729 INFO L226 Difference]: Without dead ends: 1884 [2018-10-24 19:35:49,734 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:35:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2018-10-24 19:35:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1864. [2018-10-24 19:35:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1864 states. [2018-10-24 19:35:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 3159 transitions. [2018-10-24 19:35:49,792 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 3159 transitions. Word has length 224 [2018-10-24 19:35:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:35:49,793 INFO L481 AbstractCegarLoop]: Abstraction has 1864 states and 3159 transitions. [2018-10-24 19:35:49,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:35:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 3159 transitions. [2018-10-24 19:35:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-10-24 19:35:49,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:49,802 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:35:49,802 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:49,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:49,803 INFO L82 PathProgramCache]: Analyzing trace with hash 651322454, now seen corresponding path program 1 times [2018-10-24 19:35:49,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:49,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:49,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:49,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:49,804 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:50,059 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:35:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:35:50,305 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:35:50,306 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:35:50,307 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-10-24 19:35:50,311 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1129], [1137], [1145], [1149], [1151], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-24 19:35:50,441 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:35:50,441 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 19:40:08,347 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 19:40:08,348 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 19:40:08,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 19:40:08,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:40:08,350 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:40:08,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:40:08,364 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 19:40:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:40:08,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 19:40:08,652 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 19:40:08,854 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:40:08,855 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:40:08,860 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:40:08,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:40:08 BoogieIcfgContainer [2018-10-24 19:40:08,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:40:08,862 INFO L168 Benchmark]: Toolchain (without parser) took 277036.22 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -307.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 19:40:08,863 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-10-24 19:40:08,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1074.52 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:40:08,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 284.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:40:08,866 INFO L168 Benchmark]: Boogie Preprocessor took 128.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-24 19:40:08,867 INFO L168 Benchmark]: RCFGBuilder took 5340.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 246.3 MB). Peak memory consumption was 246.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:40:08,868 INFO L168 Benchmark]: TraceAbstraction took 270203.56 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 925.4 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 221.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 19:40:08,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1074.52 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 284.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5340.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 246.3 MB). Peak memory consumption was 246.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 270203.56 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 925.4 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 221.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1647]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1647). Cancelled while BasicCegarLoop was analyzing trace of length 233 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 270.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 8.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 537 SDtfs, 1404 SDslu, 401 SDs, 0 SdLazy, 2750 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1864occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 258.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 64 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 653 ConstructedInterpolants, 0 QuantifiedInterpolants, 376811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 17/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown