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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:17:33,775 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:17:33,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:17:33,790 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:17:33,790 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:17:33,792 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:17:33,793 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:17:33,795 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:17:33,797 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:17:33,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:17:33,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:17:33,801 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:17:33,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:17:33,806 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:17:33,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:17:33,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:17:33,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:17:33,820 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:17:33,824 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:17:33,828 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:17:33,829 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:17:33,830 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:17:33,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 00:17:33,834 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 00:17:33,835 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 00:17:33,837 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 00:17:33,838 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 00:17:33,840 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 00:17:33,841 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 00:17:33,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 00:17:33,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 00:17:33,843 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 00:17:33,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 00:17:33,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 00:17:33,846 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 00:17:33,847 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 00:17:33,848 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 00:17:33,872 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:17:33,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:17:33,873 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:17:33,874 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:17:33,874 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:17:33,874 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:17:33,874 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:17:33,874 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:17:33,877 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:17:33,877 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:17:33,877 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:17:33,877 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:17:33,878 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:17:33,878 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:17:33,879 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:17:33,879 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:17:33,879 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:17:33,879 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:17:33,880 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:17:33,881 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:17:33,881 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:17:33,882 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:17:33,882 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:17:33,882 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:17:33,882 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:17:33,883 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:17:33,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:17:33,883 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:17:33,883 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:17:33,883 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:17:33,884 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:17:33,884 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:17:33,884 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:17:33,884 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:17:33,884 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:17:33,885 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:17:33,948 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:17:33,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:17:33,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:17:33,969 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:17:33,969 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:17:33,970 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-25 00:17:34,022 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac64cc55e/c3fbc713b98c40fca80258e178f08808/FLAG2c8b71e8f [2018-10-25 00:17:34,654 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:17:34,655 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-25 00:17:34,675 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac64cc55e/c3fbc713b98c40fca80258e178f08808/FLAG2c8b71e8f [2018-10-25 00:17:34,693 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac64cc55e/c3fbc713b98c40fca80258e178f08808 [2018-10-25 00:17:34,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:17:34,708 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:17:34,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:34,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:17:34,716 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:17:34,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:34" (1/1) ... [2018-10-25 00:17:34,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68109397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:34, skipping insertion in model container [2018-10-25 00:17:34,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:34" (1/1) ... [2018-10-25 00:17:34,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:17:34,832 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:17:35,725 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:35,733 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:17:35,980 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:36,004 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:17:36,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36 WrapperNode [2018-10-25 00:17:36,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:36,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:36,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:17:36,007 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:17:36,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:36,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:17:36,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:17:36,296 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:17:36,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (1/1) ... [2018-10-25 00:17:36,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:17:36,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:17:36,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:17:36,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:17:36,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (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 [2018-10-25 00:17:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:17:36,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:17:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:17:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:17:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:17:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:17:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:17:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:17:41,707 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:17:41,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:17:41 BoogieIcfgContainer [2018-10-25 00:17:41,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:17:41,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:17:41,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:17:41,715 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:17:41,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:17:34" (1/3) ... [2018-10-25 00:17:41,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702aa836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:17:41, skipping insertion in model container [2018-10-25 00:17:41,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:36" (2/3) ... [2018-10-25 00:17:41,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702aa836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:17:41, skipping insertion in model container [2018-10-25 00:17:41,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:17:41" (3/3) ... [2018-10-25 00:17:41,720 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label46_true-unreach-call.c [2018-10-25 00:17:41,731 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:17:41,745 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:17:41,765 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:17:41,822 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:17:41,823 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:17:41,823 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:17:41,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:17:41,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:17:41,823 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:17:41,824 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:17:41,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:17:41,872 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:17:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-25 00:17:41,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:41,904 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] [2018-10-25 00:17:41,908 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:41,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:41,915 INFO L82 PathProgramCache]: Analyzing trace with hash -869298807, now seen corresponding path program 1 times [2018-10-25 00:17:41,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:41,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:41,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:41,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:41,984 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:42,952 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:17:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:43,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:43,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 00:17:43,363 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:43,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 00:17:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 00:17:43,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:43,383 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-25 00:17:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:46,910 INFO L93 Difference]: Finished difference Result 1074 states and 1924 transitions. [2018-10-25 00:17:46,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 00:17:46,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2018-10-25 00:17:46,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:46,943 INFO L225 Difference]: With dead ends: 1074 [2018-10-25 00:17:46,943 INFO L226 Difference]: Without dead ends: 756 [2018-10-25 00:17:46,951 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2018-10-25 00:17:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 520. [2018-10-25 00:17:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-10-25 00:17:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-10-25 00:17:47,047 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 192 [2018-10-25 00:17:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:47,049 INFO L481 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-10-25 00:17:47,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 00:17:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-10-25 00:17:47,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-25 00:17:47,058 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:47,059 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:47,059 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:47,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:47,060 INFO L82 PathProgramCache]: Analyzing trace with hash -593828404, now seen corresponding path program 1 times [2018-10-25 00:17:47,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:47,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:47,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:47,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:47,061 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:47,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:47,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:17:47,463 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:47,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:17:47,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:17:47,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:17:47,466 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 6 states. [2018-10-25 00:17:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:51,840 INFO L93 Difference]: Finished difference Result 1482 states and 2700 transitions. [2018-10-25 00:17:51,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 00:17:51,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2018-10-25 00:17:51,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:51,857 INFO L225 Difference]: With dead ends: 1482 [2018-10-25 00:17:51,858 INFO L226 Difference]: Without dead ends: 968 [2018-10-25 00:17:51,861 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 [2018-10-25 00:17:51,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-10-25 00:17:51,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 949. [2018-10-25 00:17:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-10-25 00:17:51,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-10-25 00:17:51,958 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 220 [2018-10-25 00:17:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:51,958 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-10-25 00:17:51,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:17:51,958 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-10-25 00:17:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-10-25 00:17:51,968 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:51,969 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:51,969 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:51,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:51,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1738232703, now seen corresponding path program 1 times [2018-10-25 00:17:51,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:51,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:51,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:51,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:51,972 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:52,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:52,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:17:52,344 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:52,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:17:52,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:17:52,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:17:52,346 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 3 states. [2018-10-25 00:17:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:55,067 INFO L93 Difference]: Finished difference Result 2535 states and 4260 transitions. [2018-10-25 00:17:55,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:17:55,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2018-10-25 00:17:55,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:55,093 INFO L225 Difference]: With dead ends: 2535 [2018-10-25 00:17:55,094 INFO L226 Difference]: Without dead ends: 1592 [2018-10-25 00:17:55,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:17:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2018-10-25 00:17:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1590. [2018-10-25 00:17:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1590 states. [2018-10-25 00:17:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2503 transitions. [2018-10-25 00:17:55,181 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2503 transitions. Word has length 238 [2018-10-25 00:17:55,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:55,183 INFO L481 AbstractCegarLoop]: Abstraction has 1590 states and 2503 transitions. [2018-10-25 00:17:55,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:17:55,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2503 transitions. [2018-10-25 00:17:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-10-25 00:17:55,194 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:55,194 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:55,194 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:55,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:55,195 INFO L82 PathProgramCache]: Analyzing trace with hash -2088350806, now seen corresponding path program 1 times [2018-10-25 00:17:55,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:55,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:55,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:55,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:55,198 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:55,518 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:17:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:17:55,997 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:55,997 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:17:55,999 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 255 with the following transitions: [2018-10-25 00:17:56,004 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [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], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:17:56,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:17:56,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:17:57,268 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:17:57,270 INFO L272 AbstractInterpreter]: Visited 193 different actions 193 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:17:57,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:57,314 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:17:58,539 INFO L232 lantSequenceWeakener]: Weakened 243 states. On average, predicates are now at 73.22% of their original sizes. [2018-10-25 00:17:58,540 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:17:59,208 INFO L413 sIntCurrentIteration]: We have 253 unified AI predicates [2018-10-25 00:17:59,211 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:17:59,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:17:59,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-25 00:17:59,212 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:59,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 00:17:59,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 00:17:59,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:17:59,213 INFO L87 Difference]: Start difference. First operand 1590 states and 2503 transitions. Second operand 14 states. [2018-10-25 00:19:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:02,054 INFO L93 Difference]: Finished difference Result 3384 states and 5321 transitions. [2018-10-25 00:19:02,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:19:02,055 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 254 [2018-10-25 00:19:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:02,065 INFO L225 Difference]: With dead ends: 3384 [2018-10-25 00:19:02,065 INFO L226 Difference]: Without dead ends: 1800 [2018-10-25 00:19:02,071 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-10-25 00:19:02,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2018-10-25 00:19:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1798. [2018-10-25 00:19:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1798 states. [2018-10-25 00:19:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2720 transitions. [2018-10-25 00:19:02,121 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2720 transitions. Word has length 254 [2018-10-25 00:19:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:02,122 INFO L481 AbstractCegarLoop]: Abstraction has 1798 states and 2720 transitions. [2018-10-25 00:19:02,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-25 00:19:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2720 transitions. [2018-10-25 00:19:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-10-25 00:19:02,131 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:02,132 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:19:02,132 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:02,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:02,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1932152211, now seen corresponding path program 1 times [2018-10-25 00:19:02,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:02,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:02,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:02,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:02,134 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:02,449 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:19:02,900 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 69 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-25 00:19:02,901 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:02,901 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:02,901 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-10-25 00:19:02,902 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [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], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:02,911 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:02,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:04,648 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:19:04,649 INFO L272 AbstractInterpreter]: Visited 197 different actions 388 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:19:04,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:04,677 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:19:06,260 INFO L232 lantSequenceWeakener]: Weakened 261 states. On average, predicates are now at 73.1% of their original sizes. [2018-10-25 00:19:06,261 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:19:06,722 INFO L413 sIntCurrentIteration]: We have 265 unified AI predicates [2018-10-25 00:19:06,722 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:19:06,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:19:06,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-10-25 00:19:06,723 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:19:06,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-25 00:19:06,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-25 00:19:06,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-10-25 00:19:06,725 INFO L87 Difference]: Start difference. First operand 1798 states and 2720 transitions. Second operand 21 states. [2018-10-25 00:20:47,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:20:47,134 INFO L93 Difference]: Finished difference Result 3596 states and 5545 transitions. [2018-10-25 00:20:47,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:20:47,134 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 266 [2018-10-25 00:20:47,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:20:47,145 INFO L225 Difference]: With dead ends: 3596 [2018-10-25 00:20:47,145 INFO L226 Difference]: Without dead ends: 2012 [2018-10-25 00:20:47,151 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2018-10-25 00:20:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2018-10-25 00:20:47,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2009. [2018-10-25 00:20:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2009 states. [2018-10-25 00:20:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2948 transitions. [2018-10-25 00:20:47,587 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2948 transitions. Word has length 266 [2018-10-25 00:20:47,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:20:47,589 INFO L481 AbstractCegarLoop]: Abstraction has 2009 states and 2948 transitions. [2018-10-25 00:20:47,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-25 00:20:47,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2948 transitions. [2018-10-25 00:20:47,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-25 00:20:47,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:20:47,600 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:20:47,600 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:20:47,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:20:47,601 INFO L82 PathProgramCache]: Analyzing trace with hash -358752647, now seen corresponding path program 1 times [2018-10-25 00:20:47,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:20:47,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:20:47,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:20:47,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:20:47,602 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:20:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:20:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 98 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-25 00:20:48,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:20:48,119 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:20:48,119 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-10-25 00:20:48,120 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [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], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:20:48,138 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:20:48,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:20:50,556 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:20:50,556 INFO L272 AbstractInterpreter]: Visited 197 different actions 387 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:20:50,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:20:50,565 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:20:53,845 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 75.35% of their original sizes. [2018-10-25 00:20:53,846 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:21:02,624 INFO L413 sIntCurrentIteration]: We have 275 unified AI predicates [2018-10-25 00:21:02,625 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:21:02,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:21:02,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-25 00:21:02,625 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:21:02,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 00:21:02,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 00:21:02,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:21:02,626 INFO L87 Difference]: Start difference. First operand 2009 states and 2948 transitions. Second operand 14 states. Received shutdown request... [2018-10-25 00:21:41,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-25 00:21:41,711 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:21:41,716 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:21:41,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:21:41 BoogieIcfgContainer [2018-10-25 00:21:41,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:21:41,717 INFO L168 Benchmark]: Toolchain (without parser) took 247010.43 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 877.5 MB in the end (delta: 558.0 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:41,718 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 00:21:41,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1295.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:41,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 288.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -896.1 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:41,721 INFO L168 Benchmark]: Boogie Preprocessor took 139.69 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:41,722 INFO L168 Benchmark]: RCFGBuilder took 5268.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 253.3 MB). Peak memory consumption was 253.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:41,722 INFO L168 Benchmark]: TraceAbstraction took 240005.30 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 877.5 MB in the end (delta: 1.1 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:41,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1295.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 288.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -896.1 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.69 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5268.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 253.3 MB). Peak memory consumption was 253.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240005.30 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 877.5 MB in the end (delta: 1.1 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1590]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1590). Cancelled while BasicCegarLoop was constructing difference of abstraction (2009states) and FLOYD_HOARE automaton (currently 16 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (1779 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 239.9s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 213.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1545 SDtfs, 5709 SDslu, 2332 SDs, 0 SdLazy, 13766 SolverSat, 1279 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.7s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 829 GetRequests, 616 SyntacticMatches, 145 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2009occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.5s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9990558055100871 AbsIntWeakeningRatio, 0.2786885245901639 AbsIntAvgWeakeningVarsNumRemoved, 19.862547288776796 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 262 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1446 NumberOfCodeBlocks, 1446 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1440 ConstructedInterpolants, 0 QuantifiedInterpolants, 847866 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 328/395 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown