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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label19_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 14:58:40,846 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 14:58:40,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 14:58:40,864 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 14:58:40,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 14:58:40,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 14:58:40,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 14:58:40,869 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 14:58:40,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 14:58:40,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 14:58:40,874 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 14:58:40,875 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 14:58:40,875 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 14:58:40,877 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 14:58:40,878 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 14:58:40,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 14:58:40,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 14:58:40,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 14:58:40,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 14:58:40,891 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 14:58:40,892 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 14:58:40,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 14:58:40,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 14:58:40,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 14:58:40,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 14:58:40,897 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 14:58:40,898 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 14:58:40,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 14:58:40,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 14:58:40,903 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 14:58:40,904 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 14:58:40,904 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 14:58:40,904 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 14:58:40,906 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 14:58:40,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 14:58:40,908 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 14:58:40,909 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-11-07 14:58:40,935 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 14:58:40,936 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 14:58:40,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 14:58:40,938 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 14:58:40,938 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 14:58:40,939 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 14:58:40,939 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 14:58:40,939 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 14:58:40,939 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 14:58:40,939 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 14:58:40,940 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 14:58:40,942 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 14:58:40,943 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 14:58:40,943 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 14:58:40,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 14:58:40,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 14:58:40,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 14:58:40,944 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 14:58:40,944 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 14:58:40,945 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 14:58:40,946 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 14:58:40,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 14:58:40,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 14:58:40,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 14:58:40,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 14:58:40,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 14:58:40,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 14:58:40,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 14:58:40,947 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 14:58:40,948 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 14:58:40,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 14:58:40,948 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 14:58:40,948 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 14:58:40,948 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 14:58:40,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 14:58:41,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 14:58:41,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 14:58:41,016 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 14:58:41,017 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 14:58:41,017 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label19_true-unreach-call_false-termination.c [2018-11-07 14:58:41,078 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a2a1f71/ea83a95b9ec3465bb94fc94c2eb953a2/FLAGb345242cf [2018-11-07 14:58:41,718 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 14:58:41,719 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label19_true-unreach-call_false-termination.c [2018-11-07 14:58:41,739 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a2a1f71/ea83a95b9ec3465bb94fc94c2eb953a2/FLAGb345242cf [2018-11-07 14:58:41,759 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a2a1f71/ea83a95b9ec3465bb94fc94c2eb953a2 [2018-11-07 14:58:41,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 14:58:41,772 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 14:58:41,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 14:58:41,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 14:58:41,777 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 14:58:41,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:58:41" (1/1) ... [2018-11-07 14:58:41,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73645cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:41, skipping insertion in model container [2018-11-07 14:58:41,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:58:41" (1/1) ... [2018-11-07 14:58:41,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 14:58:41,879 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 14:58:42,397 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 14:58:42,402 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 14:58:42,593 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 14:58:42,614 INFO L193 MainTranslator]: Completed translation [2018-11-07 14:58:42,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42 WrapperNode [2018-11-07 14:58:42,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 14:58:42,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 14:58:42,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 14:58:42,616 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 14:58:42,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 14:58:42,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 14:58:42,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 14:58:42,796 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 14:58:42,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (1/1) ... [2018-11-07 14:58:42,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 14:58:42,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 14:58:42,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 14:58:42,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 14:58:42,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (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 14:58:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 14:58:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 14:58:42,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 14:58:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 14:58:42,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 14:58:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 14:58:42,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 14:58:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 14:58:42,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 14:58:46,819 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 14:58:46,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:58:46 BoogieIcfgContainer [2018-11-07 14:58:46,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 14:58:46,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 14:58:46,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 14:58:46,824 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 14:58:46,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:58:41" (1/3) ... [2018-11-07 14:58:46,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b41120a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:58:46, skipping insertion in model container [2018-11-07 14:58:46,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:58:42" (2/3) ... [2018-11-07 14:58:46,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b41120a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:58:46, skipping insertion in model container [2018-11-07 14:58:46,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:58:46" (3/3) ... [2018-11-07 14:58:46,828 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label19_true-unreach-call_false-termination.c [2018-11-07 14:58:46,836 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 14:58:46,844 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 14:58:46,863 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 14:58:46,902 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 14:58:46,902 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 14:58:46,903 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 14:58:46,903 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 14:58:46,903 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 14:58:46,903 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 14:58:46,903 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 14:58:46,904 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 14:58:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-07 14:58:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-07 14:58:46,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:58:46,961 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] [2018-11-07 14:58:46,964 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:58:46,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:58:46,970 INFO L82 PathProgramCache]: Analyzing trace with hash -949219895, now seen corresponding path program 1 times [2018-11-07 14:58:46,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:58:47,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:47,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:58:47,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:47,025 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:58:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:58:47,467 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 14:58:47,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:58:47,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 14:58:47,471 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:58:47,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 14:58:47,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 14:58:47,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 14:58:47,497 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-07 14:58:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:58:49,104 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-07 14:58:49,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 14:58:49,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-11-07 14:58:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:58:49,128 INFO L225 Difference]: With dead ends: 691 [2018-11-07 14:58:49,128 INFO L226 Difference]: Without dead ends: 434 [2018-11-07 14:58:49,137 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 14:58:49,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-07 14:58:49,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-07 14:58:49,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-07 14:58:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 772 transitions. [2018-11-07 14:58:49,224 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 772 transitions. Word has length 69 [2018-11-07 14:58:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:58:49,225 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 772 transitions. [2018-11-07 14:58:49,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 14:58:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 772 transitions. [2018-11-07 14:58:49,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-07 14:58:49,234 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:58:49,234 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, 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] [2018-11-07 14:58:49,234 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:58:49,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:58:49,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1252535900, now seen corresponding path program 1 times [2018-11-07 14:58:49,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:58:49,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:49,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:58:49,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:49,237 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:58:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:58:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:58:49,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:58:49,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 14:58:49,587 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:58:49,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 14:58:49,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 14:58:49,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 14:58:49,591 INFO L87 Difference]: Start difference. First operand 434 states and 772 transitions. Second operand 6 states. [2018-11-07 14:58:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:58:53,043 INFO L93 Difference]: Finished difference Result 1234 states and 2250 transitions. [2018-11-07 14:58:53,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 14:58:53,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-07 14:58:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:58:53,052 INFO L225 Difference]: With dead ends: 1234 [2018-11-07 14:58:53,052 INFO L226 Difference]: Without dead ends: 806 [2018-11-07 14:58:53,057 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 14:58:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-11-07 14:58:53,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 797. [2018-11-07 14:58:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2018-11-07 14:58:53,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1300 transitions. [2018-11-07 14:58:53,133 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1300 transitions. Word has length 139 [2018-11-07 14:58:53,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:58:53,134 INFO L480 AbstractCegarLoop]: Abstraction has 797 states and 1300 transitions. [2018-11-07 14:58:53,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 14:58:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1300 transitions. [2018-11-07 14:58:53,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-07 14:58:53,185 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:58:53,185 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, 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] [2018-11-07 14:58:53,186 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:58:53,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:58:53,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1412263263, now seen corresponding path program 1 times [2018-11-07 14:58:53,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:58:53,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:53,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:58:53,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:53,195 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:58:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:58:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:58:53,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:58:53,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 14:58:53,414 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:58:53,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 14:58:53,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 14:58:53,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 14:58:53,415 INFO L87 Difference]: Start difference. First operand 797 states and 1300 transitions. Second operand 5 states. [2018-11-07 14:58:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:58:55,905 INFO L93 Difference]: Finished difference Result 2186 states and 3741 transitions. [2018-11-07 14:58:55,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 14:58:55,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2018-11-07 14:58:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:58:55,926 INFO L225 Difference]: With dead ends: 2186 [2018-11-07 14:58:55,926 INFO L226 Difference]: Without dead ends: 1395 [2018-11-07 14:58:55,930 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 14:58:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2018-11-07 14:58:55,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1369. [2018-11-07 14:58:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2018-11-07 14:58:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2191 transitions. [2018-11-07 14:58:56,008 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2191 transitions. Word has length 140 [2018-11-07 14:58:56,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:58:56,010 INFO L480 AbstractCegarLoop]: Abstraction has 1369 states and 2191 transitions. [2018-11-07 14:58:56,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 14:58:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2191 transitions. [2018-11-07 14:58:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-07 14:58:56,016 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:58:56,016 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, 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] [2018-11-07 14:58:56,016 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:58:56,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:58:56,017 INFO L82 PathProgramCache]: Analyzing trace with hash 531411331, now seen corresponding path program 1 times [2018-11-07 14:58:56,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:58:56,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:56,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:58:56,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:58:56,019 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:58:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:58:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:58:56,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:58:56,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 14:58:56,207 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:58:56,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 14:58:56,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 14:58:56,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 14:58:56,208 INFO L87 Difference]: Start difference. First operand 1369 states and 2191 transitions. Second operand 5 states. [2018-11-07 14:59:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:59:00,172 INFO L93 Difference]: Finished difference Result 3697 states and 5933 transitions. [2018-11-07 14:59:00,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 14:59:00,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2018-11-07 14:59:00,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:59:00,189 INFO L225 Difference]: With dead ends: 3697 [2018-11-07 14:59:00,189 INFO L226 Difference]: Without dead ends: 2334 [2018-11-07 14:59:00,200 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 14:59:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2018-11-07 14:59:00,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2254. [2018-11-07 14:59:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2254 states. [2018-11-07 14:59:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3323 transitions. [2018-11-07 14:59:00,293 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3323 transitions. Word has length 142 [2018-11-07 14:59:00,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:59:00,294 INFO L480 AbstractCegarLoop]: Abstraction has 2254 states and 3323 transitions. [2018-11-07 14:59:00,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 14:59:00,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3323 transitions. [2018-11-07 14:59:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 14:59:00,298 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:59:00,298 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, 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 14:59:00,299 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:59:00,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:59:00,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2121902484, now seen corresponding path program 1 times [2018-11-07 14:59:00,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:59:00,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:59:00,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:59:00,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:59:00,300 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:59:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:59:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:59:00,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:59:00,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 14:59:00,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:59:00,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 14:59:00,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 14:59:00,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-07 14:59:00,526 INFO L87 Difference]: Start difference. First operand 2254 states and 3323 transitions. Second operand 5 states. [2018-11-07 14:59:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:59:03,711 INFO L93 Difference]: Finished difference Result 6104 states and 9334 transitions. [2018-11-07 14:59:03,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-07 14:59:03,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-11-07 14:59:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:59:03,729 INFO L225 Difference]: With dead ends: 6104 [2018-11-07 14:59:03,730 INFO L226 Difference]: Without dead ends: 2950 [2018-11-07 14:59:03,751 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-07 14:59:03,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2018-11-07 14:59:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2927. [2018-11-07 14:59:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2927 states. [2018-11-07 14:59:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3799 transitions. [2018-11-07 14:59:03,840 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3799 transitions. Word has length 143 [2018-11-07 14:59:03,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:59:03,841 INFO L480 AbstractCegarLoop]: Abstraction has 2927 states and 3799 transitions. [2018-11-07 14:59:03,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 14:59:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3799 transitions. [2018-11-07 14:59:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-07 14:59:03,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:59:03,851 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, 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] [2018-11-07 14:59:03,851 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:59:03,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:59:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1248172171, now seen corresponding path program 1 times [2018-11-07 14:59:03,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:59:03,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:59:03,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:59:03,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:59:03,853 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:59:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:59:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:59:04,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:59:04,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 14:59:04,119 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:59:04,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 14:59:04,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 14:59:04,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 14:59:04,122 INFO L87 Difference]: Start difference. First operand 2927 states and 3799 transitions. Second operand 4 states. [2018-11-07 14:59:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:59:05,480 INFO L93 Difference]: Finished difference Result 5839 states and 7641 transitions. [2018-11-07 14:59:05,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 14:59:05,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 242 [2018-11-07 14:59:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:59:05,497 INFO L225 Difference]: With dead ends: 5839 [2018-11-07 14:59:05,497 INFO L226 Difference]: Without dead ends: 3110 [2018-11-07 14:59:05,510 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 14:59:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2018-11-07 14:59:05,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3110. [2018-11-07 14:59:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3110 states. [2018-11-07 14:59:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 3994 transitions. [2018-11-07 14:59:05,586 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 3994 transitions. Word has length 242 [2018-11-07 14:59:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:59:05,587 INFO L480 AbstractCegarLoop]: Abstraction has 3110 states and 3994 transitions. [2018-11-07 14:59:05,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 14:59:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 3994 transitions. [2018-11-07 14:59:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-11-07 14:59:05,600 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:59:05,601 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, 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, 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 14:59:05,601 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:59:05,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:59:05,602 INFO L82 PathProgramCache]: Analyzing trace with hash -2039548178, now seen corresponding path program 1 times [2018-11-07 14:59:05,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:59:05,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:59:05,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:59:05,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:59:05,603 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:59:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:59:06,195 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-11-07 14:59:06,898 WARN L179 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2018-11-07 14:59:07,009 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2018-11-07 14:59:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:59:07,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 14:59:07,669 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 14:59:07,670 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-11-07 14:59:07,672 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [622], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 14:59:07,739 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 14:59:07,739 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 14:59:08,733 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 14:59:20,077 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 14:59:20,079 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 14:59:20,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:59:20,102 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 14:59:29,802 INFO L227 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 78.1% of their original sizes. [2018-11-07 14:59:29,802 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 14:59:30,159 INFO L415 sIntCurrentIteration]: We unified 283 AI predicates to 283 [2018-11-07 14:59:30,159 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 14:59:30,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 14:59:30,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2018-11-07 14:59:30,161 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:59:30,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 14:59:30,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 14:59:30,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 14:59:30,162 INFO L87 Difference]: Start difference. First operand 3110 states and 3994 transitions. Second operand 7 states. [2018-11-07 15:02:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:02:38,598 INFO L93 Difference]: Finished difference Result 6399 states and 8193 transitions. [2018-11-07 15:02:38,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:02:38,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2018-11-07 15:02:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:02:38,615 INFO L225 Difference]: With dead ends: 6399 [2018-11-07 15:02:38,615 INFO L226 Difference]: Without dead ends: 3295 [2018-11-07 15:02:38,625 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 15:02:38,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2018-11-07 15:02:38,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 3293. [2018-11-07 15:02:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3293 states. [2018-11-07 15:02:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 4179 transitions. [2018-11-07 15:02:38,708 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 4179 transitions. Word has length 284 [2018-11-07 15:02:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:02:38,708 INFO L480 AbstractCegarLoop]: Abstraction has 3293 states and 4179 transitions. [2018-11-07 15:02:38,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 15:02:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 4179 transitions. [2018-11-07 15:02:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-11-07 15:02:38,725 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:02:38,726 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:02:38,726 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:02:38,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:02:38,727 INFO L82 PathProgramCache]: Analyzing trace with hash -806219320, now seen corresponding path program 1 times [2018-11-07 15:02:38,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:02:38,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:02:38,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:02:38,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:02:38,728 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:02:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:02:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 199 proven. 297 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 15:02:39,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 15:02:39,811 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 15:02:39,811 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 396 with the following transitions: [2018-11-07 15:02:39,812 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [622], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 15:02:39,818 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 15:02:39,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 15:02:40,090 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 15:02:57,494 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 15:02:57,495 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 15:02:57,496 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 15:02:57,496 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 15:02:57,496 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 15:02:57,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:02:57,507 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 15:02:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:02:57,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 15:02:57,716 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 15:02:57,917 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 15:02:57,918 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 15:02:57,923 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 15:02:57,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:02:57 BoogieIcfgContainer [2018-11-07 15:02:57,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 15:02:57,924 INFO L168 Benchmark]: Toolchain (without parser) took 256152.65 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 372.5 MB. Max. memory is 7.1 GB. [2018-11-07 15:02:57,925 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 15:02:57,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.01 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-11-07 15:02:57,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 179.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2018-11-07 15:02:57,928 INFO L168 Benchmark]: Boogie Preprocessor took 134.25 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 15:02:57,928 INFO L168 Benchmark]: RCFGBuilder took 3889.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.3 MB). Peak memory consumption was 118.3 MB. Max. memory is 7.1 GB. [2018-11-07 15:02:57,929 INFO L168 Benchmark]: TraceAbstraction took 251102.19 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.7 GB). Peak memory consumption was 287.1 MB. Max. memory is 7.1 GB. [2018-11-07 15:02:57,934 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 842.01 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 179.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.25 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3889.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.3 MB). Peak memory consumption was 118.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251102.19 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.7 GB). Peak memory consumption was 287.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was analyzing trace of length 396 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 251.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 204.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1210 SDtfs, 4194 SDslu, 888 SDs, 0 SdLazy, 7093 SolverSat, 1743 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 193.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 331 GetRequests, 295 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3293occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9980106465972192 AbsIntWeakeningRatio, 0.09187279151943463 AbsIntAvgWeakeningVarsNumRemoved, 18.802120141342755 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 140 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1159 NumberOfCodeBlocks, 1159 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1152 ConstructedInterpolants, 0 QuantifiedInterpolants, 1240077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 534/536 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown