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-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:12:23,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:12:23,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:12:23,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:12:23,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:12:23,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:12:23,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:12:23,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:12:23,893 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:12:23,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:12:23,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:12:23,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:12:23,897 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:12:23,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:12:23,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:12:23,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:12:23,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:12:23,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:12:23,905 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:12:23,906 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:12:23,908 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:12:23,909 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:12:23,911 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:12:23,912 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:12:23,912 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:12:23,915 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:12:23,916 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:12:23,917 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:12:23,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:12:23,924 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:12:23,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:12:23,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:12:23,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:12:23,928 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:12:23,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:12:23,930 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:12:23,930 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-LIM.epf [2018-11-07 18:12:23,961 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:12:23,961 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:12:23,965 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:12:23,965 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:12:23,965 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:12:23,965 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:12:23,966 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:12:23,966 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:12:23,966 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:12:23,966 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:12:23,966 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:12:23,967 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:12:23,967 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:12:23,968 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:12:23,968 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:12:23,969 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:12:23,969 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:12:23,969 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:12:23,969 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:12:23,969 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:12:23,970 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:12:23,970 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:12:23,970 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:12:23,970 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:12:23,971 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:12:23,972 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:12:23,972 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:12:23,973 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:12:23,973 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:12:23,973 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:12:23,973 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:12:23,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:12:23,974 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:12:23,974 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:12:23,974 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:12:24,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:12:24,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:12:24,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:12:24,040 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:12:24,040 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:12:24,041 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c [2018-11-07 18:12:24,102 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67a77dce/7b5875152cf148fd9b3c51d819083d47/FLAGfbac14cfd [2018-11-07 18:12:24,801 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:12:24,801 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c [2018-11-07 18:12:24,824 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67a77dce/7b5875152cf148fd9b3c51d819083d47/FLAGfbac14cfd [2018-11-07 18:12:24,844 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67a77dce/7b5875152cf148fd9b3c51d819083d47 [2018-11-07 18:12:24,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:12:24,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:12:24,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:12:24,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:12:24,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:12:24,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:12:24" (1/1) ... [2018-11-07 18:12:24,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:24, skipping insertion in model container [2018-11-07 18:12:24,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:12:24" (1/1) ... [2018-11-07 18:12:24,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:12:24,983 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:12:25,804 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:12:25,808 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:12:26,054 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:12:26,074 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:12:26,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26 WrapperNode [2018-11-07 18:12:26,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:12:26,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:12:26,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:12:26,076 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:12:26,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:12:26,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:12:26,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:12:26,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:12:26,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (1/1) ... [2018-11-07 18:12:26,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:12:26,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:12:26,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:12:26,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:12:26,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (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 18:12:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:12:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:12:26,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:12:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:12:26,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:12:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:12:26,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:12:26,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:12:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:12:26,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:12:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:12:32,654 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:12:32,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:12:32 BoogieIcfgContainer [2018-11-07 18:12:32,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:12:32,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:12:32,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:12:32,660 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:12:32,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:12:24" (1/3) ... [2018-11-07 18:12:32,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:12:32, skipping insertion in model container [2018-11-07 18:12:32,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:26" (2/3) ... [2018-11-07 18:12:32,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:12:32, skipping insertion in model container [2018-11-07 18:12:32,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:12:32" (3/3) ... [2018-11-07 18:12:32,664 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label08_false-unreach-call.c [2018-11-07 18:12:32,675 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:12:32,689 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:12:32,708 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:12:32,759 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:12:32,759 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:12:32,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:12:32,759 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:12:32,759 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:12:32,760 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:12:32,760 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:12:32,760 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:12:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 18:12:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-07 18:12:32,798 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:32,799 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] [2018-11-07 18:12:32,802 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:32,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:32,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2042869364, now seen corresponding path program 1 times [2018-11-07 18:12:32,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:32,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:32,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:32,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:32,867 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:33,257 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 18:12:33,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:12:33,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 18:12:33,260 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:33,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 18:12:33,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 18:12:33,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 18:12:33,288 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 18:12:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:12:36,330 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 18:12:36,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 18:12:36,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-11-07 18:12:36,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:12:36,357 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 18:12:36,357 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 18:12:36,368 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 18:12:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 18:12:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 18:12:36,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 18:12:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-11-07 18:12:36,494 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 24 [2018-11-07 18:12:36,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:12:36,495 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-11-07 18:12:36,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 18:12:36,495 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-11-07 18:12:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-07 18:12:36,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:36,502 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:12:36,502 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:36,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:36,503 INFO L82 PathProgramCache]: Analyzing trace with hash -2102381266, now seen corresponding path program 1 times [2018-11-07 18:12:36,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:36,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:36,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:36,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:36,505 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:12:36,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:12:36,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:12:36,833 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:36,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:12:36,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:12:36,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:12:36,836 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-11-07 18:12:46,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:12:46,750 INFO L93 Difference]: Finished difference Result 2960 states and 5503 transitions. [2018-11-07 18:12:46,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 18:12:46,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-11-07 18:12:46,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:12:46,780 INFO L225 Difference]: With dead ends: 2960 [2018-11-07 18:12:46,780 INFO L226 Difference]: Without dead ends: 2222 [2018-11-07 18:12:46,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:12:46,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2018-11-07 18:12:46,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2174. [2018-11-07 18:12:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2174 states. [2018-11-07 18:12:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 3685 transitions. [2018-11-07 18:12:46,929 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 3685 transitions. Word has length 100 [2018-11-07 18:12:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:12:46,930 INFO L480 AbstractCegarLoop]: Abstraction has 2174 states and 3685 transitions. [2018-11-07 18:12:46,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:12:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 3685 transitions. [2018-11-07 18:12:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-07 18:12:46,936 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:46,936 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:12:46,936 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:46,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:46,937 INFO L82 PathProgramCache]: Analyzing trace with hash -830795674, now seen corresponding path program 1 times [2018-11-07 18:12:46,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:46,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:46,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:46,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:46,939 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:47,247 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:12:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:12:47,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:12:47,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:12:47,603 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:47,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:12:47,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:12:47,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:12:47,605 INFO L87 Difference]: Start difference. First operand 2174 states and 3685 transitions. Second operand 6 states. [2018-11-07 18:12:53,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:12:53,264 INFO L93 Difference]: Finished difference Result 7698 states and 13654 transitions. [2018-11-07 18:12:53,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:12:53,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-11-07 18:12:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:12:53,308 INFO L225 Difference]: With dead ends: 7698 [2018-11-07 18:12:53,309 INFO L226 Difference]: Without dead ends: 5530 [2018-11-07 18:12:53,341 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 18:12:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2018-11-07 18:12:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5473. [2018-11-07 18:12:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5473 states. [2018-11-07 18:12:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 8554 transitions. [2018-11-07 18:12:53,540 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 8554 transitions. Word has length 104 [2018-11-07 18:12:53,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:12:53,541 INFO L480 AbstractCegarLoop]: Abstraction has 5473 states and 8554 transitions. [2018-11-07 18:12:53,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:12:53,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 8554 transitions. [2018-11-07 18:12:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-07 18:12:53,552 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:53,556 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:12:53,556 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:53,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:53,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1219304098, now seen corresponding path program 1 times [2018-11-07 18:12:53,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:53,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:53,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:53,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:53,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:53,899 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:12:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:12:54,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:12:54,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:12:54,074 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:54,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:12:54,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:12:54,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:12:54,076 INFO L87 Difference]: Start difference. First operand 5473 states and 8554 transitions. Second operand 6 states. [2018-11-07 18:12:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:12:57,085 INFO L93 Difference]: Finished difference Result 12837 states and 21228 transitions. [2018-11-07 18:12:57,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:12:57,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-07 18:12:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:12:57,144 INFO L225 Difference]: With dead ends: 12837 [2018-11-07 18:12:57,145 INFO L226 Difference]: Without dead ends: 7370 [2018-11-07 18:12:57,181 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:12:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7370 states. [2018-11-07 18:12:57,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7370 to 7296. [2018-11-07 18:12:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-11-07 18:12:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 11086 transitions. [2018-11-07 18:12:57,452 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 11086 transitions. Word has length 140 [2018-11-07 18:12:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:12:57,453 INFO L480 AbstractCegarLoop]: Abstraction has 7296 states and 11086 transitions. [2018-11-07 18:12:57,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:12:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 11086 transitions. [2018-11-07 18:12:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-07 18:12:57,462 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:57,463 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 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] [2018-11-07 18:12:57,463 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:57,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:57,464 INFO L82 PathProgramCache]: Analyzing trace with hash 365770004, now seen corresponding path program 1 times [2018-11-07 18:12:57,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:57,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:57,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:57,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:57,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:57,696 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:12:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 18:12:57,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:12:57,829 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:12:57,829 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-11-07 18:12:57,832 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:12:57,886 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:12:57,886 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:12:58,582 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:12:58,584 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 18:12:58,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:58,642 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:12:59,230 INFO L227 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 77.58% of their original sizes. [2018-11-07 18:12:59,231 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:12:59,785 INFO L415 sIntCurrentIteration]: We unified 189 AI predicates to 189 [2018-11-07 18:12:59,786 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:12:59,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:12:59,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-07 18:12:59,787 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:59,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 18:12:59,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 18:12:59,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:12:59,788 INFO L87 Difference]: Start difference. First operand 7296 states and 11086 transitions. Second operand 10 states. [2018-11-07 18:13:04,496 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:13:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:24,670 INFO L93 Difference]: Finished difference Result 14929 states and 22685 transitions. [2018-11-07 18:13:24,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 18:13:24,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2018-11-07 18:13:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:24,712 INFO L225 Difference]: With dead ends: 14929 [2018-11-07 18:13:24,713 INFO L226 Difference]: Without dead ends: 7639 [2018-11-07 18:13:24,744 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-07 18:13:24,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2018-11-07 18:13:24,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 7634. [2018-11-07 18:13:24,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7634 states. [2018-11-07 18:13:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 11434 transitions. [2018-11-07 18:13:24,966 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 11434 transitions. Word has length 190 [2018-11-07 18:13:24,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:24,967 INFO L480 AbstractCegarLoop]: Abstraction has 7634 states and 11434 transitions. [2018-11-07 18:13:24,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 18:13:24,967 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 11434 transitions. [2018-11-07 18:13:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-07 18:13:24,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:24,972 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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 18:13:24,972 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:24,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:24,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1523269408, now seen corresponding path program 1 times [2018-11-07 18:13:24,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:24,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:24,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:24,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:24,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:25,250 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:13:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 18:13:25,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:13:25,607 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:13:25,607 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-07 18:13:25,607 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:13:25,613 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:13:25,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:13:25,719 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:13:25,886 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:13:25,886 INFO L272 AbstractInterpreter]: Visited 100 different actions 287 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:13:25,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:25,902 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:13:26,366 INFO L227 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 78.53% of their original sizes. [2018-11-07 18:13:26,366 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:13:27,689 INFO L415 sIntCurrentIteration]: We unified 199 AI predicates to 199 [2018-11-07 18:13:27,690 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:13:27,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:13:27,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-07 18:13:27,691 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:27,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-07 18:13:27,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-07 18:13:27,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2018-11-07 18:13:27,694 INFO L87 Difference]: Start difference. First operand 7634 states and 11434 transitions. Second operand 23 states. [2018-11-07 18:14:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:14:09,990 INFO L93 Difference]: Finished difference Result 18468 states and 28566 transitions. [2018-11-07 18:14:09,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-07 18:14:09,990 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 200 [2018-11-07 18:14:09,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:14:10,033 INFO L225 Difference]: With dead ends: 18468 [2018-11-07 18:14:10,033 INFO L226 Difference]: Without dead ends: 11178 [2018-11-07 18:14:10,065 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 158 SyntacticMatches, 20 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2018-11-07 18:14:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11178 states. [2018-11-07 18:14:10,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11178 to 10639. [2018-11-07 18:14:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10639 states. [2018-11-07 18:14:10,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10639 states to 10639 states and 14646 transitions. [2018-11-07 18:14:10,350 INFO L78 Accepts]: Start accepts. Automaton has 10639 states and 14646 transitions. Word has length 200 [2018-11-07 18:14:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:14:10,351 INFO L480 AbstractCegarLoop]: Abstraction has 10639 states and 14646 transitions. [2018-11-07 18:14:10,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-07 18:14:10,351 INFO L276 IsEmpty]: Start isEmpty. Operand 10639 states and 14646 transitions. [2018-11-07 18:14:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-07 18:14:10,358 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:14:10,359 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2018-11-07 18:14:10,359 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:14:10,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:14:10,359 INFO L82 PathProgramCache]: Analyzing trace with hash -23984104, now seen corresponding path program 1 times [2018-11-07 18:14:10,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:14:10,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:14:10,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:14:10,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:14:10,362 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:14:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:14:10,661 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:14:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 18:14:11,116 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:14:11,116 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:14:11,116 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-11-07 18:14:11,118 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:14:11,128 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:14:11,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:14:11,296 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:14:11,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:14:11,527 INFO L272 AbstractInterpreter]: Visited 136 different actions 395 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:14:11,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:14:11,537 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:14:12,518 INFO L227 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 78.83% of their original sizes. [2018-11-07 18:14:12,518 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:14:13,101 INFO L415 sIntCurrentIteration]: We unified 235 AI predicates to 235 [2018-11-07 18:14:13,101 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:14:13,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:14:13,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2018-11-07 18:14:13,102 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:14:13,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-07 18:14:13,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-07 18:14:13,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2018-11-07 18:14:13,104 INFO L87 Difference]: Start difference. First operand 10639 states and 14646 transitions. Second operand 24 states. [2018-11-07 18:15:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:10,843 INFO L93 Difference]: Finished difference Result 22765 states and 32636 transitions. [2018-11-07 18:15:10,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-07 18:15:10,844 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 236 [2018-11-07 18:15:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:10,890 INFO L225 Difference]: With dead ends: 22765 [2018-11-07 18:15:10,891 INFO L226 Difference]: Without dead ends: 13337 [2018-11-07 18:15:10,918 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 251 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=291, Invalid=1269, Unknown=0, NotChecked=0, Total=1560 [2018-11-07 18:15:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13337 states. [2018-11-07 18:15:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13337 to 13306. [2018-11-07 18:15:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13306 states. [2018-11-07 18:15:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13306 states to 13306 states and 17601 transitions. [2018-11-07 18:15:11,204 INFO L78 Accepts]: Start accepts. Automaton has 13306 states and 17601 transitions. Word has length 236 [2018-11-07 18:15:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:11,205 INFO L480 AbstractCegarLoop]: Abstraction has 13306 states and 17601 transitions. [2018-11-07 18:15:11,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-07 18:15:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13306 states and 17601 transitions. [2018-11-07 18:15:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2018-11-07 18:15:11,228 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:11,228 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:11,229 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:11,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:11,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1900189998, now seen corresponding path program 1 times [2018-11-07 18:15:11,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:11,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:11,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:11,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:11,230 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 136 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-07 18:15:12,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:15:12,016 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:15:12,016 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 431 with the following transitions: [2018-11-07 18:15:12,017 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:15:12,033 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:15:12,033 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:15:13,361 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:15:13,361 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:15:13,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:13,387 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:15:13,898 INFO L227 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 77.71% of their original sizes. [2018-11-07 18:15:13,898 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:15:15,362 INFO L415 sIntCurrentIteration]: We unified 429 AI predicates to 429 [2018-11-07 18:15:15,362 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:15:15,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:15:15,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-07 18:15:15,363 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:15,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 18:15:15,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 18:15:15,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-07 18:15:15,365 INFO L87 Difference]: Start difference. First operand 13306 states and 17601 transitions. Second operand 18 states. [2018-11-07 18:15:17,177 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:15:32,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:32,490 INFO L93 Difference]: Finished difference Result 25166 states and 33989 transitions. [2018-11-07 18:15:32,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-07 18:15:32,490 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 430 [2018-11-07 18:15:32,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:32,535 INFO L225 Difference]: With dead ends: 25166 [2018-11-07 18:15:32,535 INFO L226 Difference]: Without dead ends: 13942 [2018-11-07 18:15:32,563 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 445 GetRequests, 361 SyntacticMatches, 52 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-07 18:15:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13942 states. [2018-11-07 18:15:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13942 to 13937. [2018-11-07 18:15:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13937 states. [2018-11-07 18:15:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 18272 transitions. [2018-11-07 18:15:32,836 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 18272 transitions. Word has length 430 [2018-11-07 18:15:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:32,837 INFO L480 AbstractCegarLoop]: Abstraction has 13937 states and 18272 transitions. [2018-11-07 18:15:32,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 18:15:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 18272 transitions. [2018-11-07 18:15:32,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2018-11-07 18:15:32,873 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:32,874 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:32,874 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:32,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:32,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1712774046, now seen corresponding path program 1 times [2018-11-07 18:15:32,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:32,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:32,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:32,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:32,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:33,245 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:15:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 57 proven. 228 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-07 18:15:33,439 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:15:33,439 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:15:33,440 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 439 with the following transitions: [2018-11-07 18:15:33,440 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:15:33,445 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:15:33,445 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:15:35,703 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:15:35,704 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:15:35,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:35,714 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:15:36,188 INFO L227 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 77.57% of their original sizes. [2018-11-07 18:15:36,188 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:15:36,461 INFO L415 sIntCurrentIteration]: We unified 437 AI predicates to 437 [2018-11-07 18:15:36,461 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:15:36,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:15:36,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 18:15:36,461 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:36,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 18:15:36,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 18:15:36,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-07 18:15:36,463 INFO L87 Difference]: Start difference. First operand 13937 states and 18272 transitions. Second operand 20 states. [2018-11-07 18:15:38,820 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 18:16:03,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 18:16:03,964 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:16:03,969 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:16:03,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:16:03 BoogieIcfgContainer [2018-11-07 18:16:03,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:16:03,971 INFO L168 Benchmark]: Toolchain (without parser) took 219113.65 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -335.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-07 18:16:03,972 INFO L168 Benchmark]: CDTParser took 0.23 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 18:16:03,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1215.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 18:16:03,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -866.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-07 18:16:03,974 INFO L168 Benchmark]: Boogie Preprocessor took 169.20 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 18:16:03,974 INFO L168 Benchmark]: RCFGBuilder took 6230.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 267.5 MB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB. [2018-11-07 18:16:03,975 INFO L168 Benchmark]: TraceAbstraction took 211314.27 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 189.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-11-07 18:16:03,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1215.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 178.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -866.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.20 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 6230.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 267.5 MB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211314.27 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 189.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (13937states) and FLOYD_HOARE automaton (currently 30 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (14869 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 211.2s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 191.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2372 SDtfs, 23255 SDslu, 2200 SDs, 0 SdLazy, 31997 SolverSat, 4972 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1596 GetRequests, 1341 SyntacticMatches, 76 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1554 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13937occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.997290027110158 AbsIntWeakeningRatio, 0.09536601746138348 AbsIntAvgWeakeningVarsNumRemoved, 10.233042310275353 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 759 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1862 NumberOfCodeBlocks, 1862 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1853 ConstructedInterpolants, 0 QuantifiedInterpolants, 1685797 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 587/1001 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown