java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -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/Problem19_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:49:35,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:49:35,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:49:35,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:49:35,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:49:35,771 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:49:35,773 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:49:35,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:49:35,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:49:35,778 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:49:35,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:49:35,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:49:35,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:49:35,782 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:49:35,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:49:35,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:49:35,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:49:35,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:49:35,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:49:35,790 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:49:35,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:49:35,793 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:49:35,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:49:35,796 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:49:35,796 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:49:35,797 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:49:35,798 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:49:35,799 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:49:35,800 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:49:35,801 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:49:35,801 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:49:35,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:49:35,802 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:49:35,803 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:49:35,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:49:35,805 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:49:35,805 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:49:35,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:49:35,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:49:35,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:49:35,829 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:49:35,830 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:49:35,830 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:49:35,830 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:49:35,830 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:49:35,831 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:49:35,831 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:49:35,831 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:49:35,831 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:49:35,831 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:49:35,831 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:49:35,832 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:49:35,832 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:49:35,833 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:49:35,833 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:49:35,833 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:49:35,833 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:49:35,833 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:49:35,834 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:49:35,834 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:49:35,834 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:49:35,834 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:49:35,834 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:49:35,835 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:49:35,835 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:49:35,835 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:49:35,835 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:49:35,835 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:49:35,836 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:49:35,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:49:35,836 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:49:35,836 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:49:35,836 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:49:35,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:49:35,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:49:35,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:49:35,923 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:49:35,923 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:49:35,924 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-11-07 09:49:35,992 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf79ec77/b1bd5813d43741a29ab1d3cd83076500/FLAGba084a43e [2018-11-07 09:49:36,862 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:49:36,863 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-11-07 09:49:36,910 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf79ec77/b1bd5813d43741a29ab1d3cd83076500/FLAGba084a43e [2018-11-07 09:49:36,927 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf79ec77/b1bd5813d43741a29ab1d3cd83076500 [2018-11-07 09:49:36,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:49:36,945 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:49:36,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:49:36,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:49:36,951 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:49:36,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:49:36" (1/1) ... [2018-11-07 09:49:36,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692e9784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:36, skipping insertion in model container [2018-11-07 09:49:36,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:49:36" (1/1) ... [2018-11-07 09:49:36,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:49:37,225 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:49:39,329 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:49:39,334 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:49:40,511 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:49:40,572 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:49:40,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40 WrapperNode [2018-11-07 09:49:40,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:49:40,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:49:40,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:49:40,574 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:49:40,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:49:41,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:49:41,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:49:41,141 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:49:41,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... [2018-11-07 09:49:41,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:49:41,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:49:41,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:49:41,588 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:49:41,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:49:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 09:49:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 09:49:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 09:49:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 09:49:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:49:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:49:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:49:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:49:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:49:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:49:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:49:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:49:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:49:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:49:55,939 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:49:55,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:49:55 BoogieIcfgContainer [2018-11-07 09:49:55,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:49:55,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:49:55,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:49:55,945 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:49:55,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:49:36" (1/3) ... [2018-11-07 09:49:55,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea323b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:49:55, skipping insertion in model container [2018-11-07 09:49:55,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:49:40" (2/3) ... [2018-11-07 09:49:55,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea323b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:49:55, skipping insertion in model container [2018-11-07 09:49:55,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:49:55" (3/3) ... [2018-11-07 09:49:55,949 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label35_true-unreach-call.c [2018-11-07 09:49:55,960 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:49:55,971 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:49:55,990 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:49:56,048 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:49:56,048 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:49:56,048 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:49:56,049 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:49:56,049 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:49:56,049 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:49:56,049 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:49:56,049 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:49:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 09:49:56,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-07 09:49:56,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:49:56,128 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] [2018-11-07 09:49:56,131 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:49:56,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:49:56,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1096536636, now seen corresponding path program 1 times [2018-11-07 09:49:56,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:49:56,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:49:56,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:49:56,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:49:56,207 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:49:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:49:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:49:56,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:49:56,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:49:56,747 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:49:56,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:49:56,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:49:56,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:49:56,775 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-11-07 09:50:17,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:50:17,758 INFO L93 Difference]: Finished difference Result 6513 states and 12383 transitions. [2018-11-07 09:50:17,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:50:17,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-11-07 09:50:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:50:17,842 INFO L225 Difference]: With dead ends: 6513 [2018-11-07 09:50:17,844 INFO L226 Difference]: Without dead ends: 4729 [2018-11-07 09:50:17,864 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:50:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-11-07 09:50:18,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4693. [2018-11-07 09:50:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2018-11-07 09:50:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7735 transitions. [2018-11-07 09:50:18,294 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7735 transitions. Word has length 46 [2018-11-07 09:50:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:50:18,295 INFO L480 AbstractCegarLoop]: Abstraction has 4693 states and 7735 transitions. [2018-11-07 09:50:18,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:50:18,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7735 transitions. [2018-11-07 09:50:18,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-07 09:50:18,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:50:18,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:50:18,304 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:50:18,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:50:18,304 INFO L82 PathProgramCache]: Analyzing trace with hash 935999737, now seen corresponding path program 1 times [2018-11-07 09:50:18,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:50:18,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:18,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:50:18,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:18,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:50:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:50:18,713 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:50:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:50:19,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:50:19,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:50:19,124 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:50:19,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:50:19,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:50:19,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:50:19,127 INFO L87 Difference]: Start difference. First operand 4693 states and 7735 transitions. Second operand 6 states. [2018-11-07 09:50:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:50:44,794 INFO L93 Difference]: Finished difference Result 17886 states and 30173 transitions. [2018-11-07 09:50:44,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:50:44,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-11-07 09:50:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:50:44,878 INFO L225 Difference]: With dead ends: 17886 [2018-11-07 09:50:44,878 INFO L226 Difference]: Without dead ends: 13199 [2018-11-07 09:50:45,051 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:50:45,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2018-11-07 09:50:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13130. [2018-11-07 09:50:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13130 states. [2018-11-07 09:50:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 19368 transitions. [2018-11-07 09:50:45,426 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 19368 transitions. Word has length 118 [2018-11-07 09:50:45,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:50:45,427 INFO L480 AbstractCegarLoop]: Abstraction has 13130 states and 19368 transitions. [2018-11-07 09:50:45,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:50:45,427 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 19368 transitions. [2018-11-07 09:50:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 09:50:45,447 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:50:45,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:50:45,448 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:50:45,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:50:45,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2110567223, now seen corresponding path program 1 times [2018-11-07 09:50:45,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:50:45,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:45,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:50:45,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:45,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:50:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:50:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:50:45,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:50:45,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:50:45,754 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:50:45,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:50:45,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:50:45,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:50:45,755 INFO L87 Difference]: Start difference. First operand 13130 states and 19368 transitions. Second operand 6 states. [2018-11-07 09:51:02,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:51:02,559 INFO L93 Difference]: Finished difference Result 39928 states and 60289 transitions. [2018-11-07 09:51:02,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 09:51:02,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 09:51:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:51:02,664 INFO L225 Difference]: With dead ends: 39928 [2018-11-07 09:51:02,664 INFO L226 Difference]: Without dead ends: 26804 [2018-11-07 09:51:02,702 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:51:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26804 states. [2018-11-07 09:51:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26804 to 26539. [2018-11-07 09:51:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26539 states. [2018-11-07 09:51:03,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26539 states to 26539 states and 38639 transitions. [2018-11-07 09:51:03,311 INFO L78 Accepts]: Start accepts. Automaton has 26539 states and 38639 transitions. Word has length 128 [2018-11-07 09:51:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:51:03,312 INFO L480 AbstractCegarLoop]: Abstraction has 26539 states and 38639 transitions. [2018-11-07 09:51:03,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:51:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand 26539 states and 38639 transitions. [2018-11-07 09:51:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-07 09:51:03,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:51:03,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:51:03,316 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:51:03,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:51:03,317 INFO L82 PathProgramCache]: Analyzing trace with hash 708423687, now seen corresponding path program 1 times [2018-11-07 09:51:03,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:51:03,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:03,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:51:03,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:03,318 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:51:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:51:03,611 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:51:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:51:04,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:51:04,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:51:04,020 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:51:04,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:51:04,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:51:04,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:51:04,022 INFO L87 Difference]: Start difference. First operand 26539 states and 38639 transitions. Second operand 6 states. [2018-11-07 09:51:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:51:22,478 INFO L93 Difference]: Finished difference Result 70548 states and 106708 transitions. [2018-11-07 09:51:22,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:51:22,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2018-11-07 09:51:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:51:22,631 INFO L225 Difference]: With dead ends: 70548 [2018-11-07 09:51:22,631 INFO L226 Difference]: Without dead ends: 44015 [2018-11-07 09:51:22,708 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:51:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44015 states. [2018-11-07 09:51:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44015 to 43859. [2018-11-07 09:51:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43859 states. [2018-11-07 09:51:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43859 states to 43859 states and 61090 transitions. [2018-11-07 09:51:23,935 INFO L78 Accepts]: Start accepts. Automaton has 43859 states and 61090 transitions. Word has length 161 [2018-11-07 09:51:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:51:23,936 INFO L480 AbstractCegarLoop]: Abstraction has 43859 states and 61090 transitions. [2018-11-07 09:51:23,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:51:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 43859 states and 61090 transitions. [2018-11-07 09:51:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-07 09:51:23,942 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:51:23,942 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 09:51:23,942 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:51:23,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:51:23,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1186440308, now seen corresponding path program 1 times [2018-11-07 09:51:23,943 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:51:23,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:23,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:51:23,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:23,948 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:51:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:51:24,213 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:51:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 78 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:51:24,571 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:51:24,571 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:51:24,572 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-11-07 09:51:24,575 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5494], [5496], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5724], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 09:51:24,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:51:24,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:51:25,058 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:51:25,062 INFO L272 AbstractInterpreter]: Visited 84 different actions 84 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 09:51:25,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:51:25,077 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:51:25,511 INFO L227 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 75.58% of their original sizes. [2018-11-07 09:51:25,512 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:51:25,694 INFO L415 sIntCurrentIteration]: We unified 196 AI predicates to 196 [2018-11-07 09:51:25,694 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:51:25,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:51:25,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 09:51:25,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:51:25,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:51:25,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:51:25,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:51:25,697 INFO L87 Difference]: Start difference. First operand 43859 states and 61090 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 09:53:26,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:53:26,565 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:53:26,571 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:53:26,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:53:26 BoogieIcfgContainer [2018-11-07 09:53:26,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:53:26,572 INFO L168 Benchmark]: Toolchain (without parser) took 229629.68 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 09:53:26,573 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-07 09:53:26,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3627.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 972.9 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:53:26,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 566.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 828.9 MB). Free memory was 972.9 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. [2018-11-07 09:53:26,578 INFO L168 Benchmark]: Boogie Preprocessor took 446.18 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. [2018-11-07 09:53:26,578 INFO L168 Benchmark]: RCFGBuilder took 14353.31 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 165.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 498.6 MB). Peak memory consumption was 673.4 MB. Max. memory is 7.1 GB. [2018-11-07 09:53:26,579 INFO L168 Benchmark]: TraceAbstraction took 210630.01 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: -800.8 MB). Peak memory consumption was 801.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:53:26,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3627.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 972.9 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 566.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 828.9 MB). Free memory was 972.9 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 446.18 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14353.31 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 165.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 498.6 MB). Peak memory consumption was 673.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210630.01 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: -800.8 MB). Peak memory consumption was 801.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 133). Cancelled while BasicCegarLoop was constructing difference of abstraction (43859states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (15484 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 210.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 203.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3391 SDtfs, 26317 SDslu, 3350 SDs, 0 SdLazy, 43120 SolverSat, 9680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 171.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 234 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43859occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975867817482726 AbsIntWeakeningRatio, 0.14285714285714285 AbsIntAvgWeakeningVarsNumRemoved, 17.051020408163264 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 526 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 645 ConstructedInterpolants, 0 QuantifiedInterpolants, 386373 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 200/265 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown