java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:17:21,959 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:17:21,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:17:21,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:17:21,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:17:21,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:17:21,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:17:21,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:17:21,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:17:21,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:17:21,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:17:21,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:17:21,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:17:21,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:17:21,986 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:17:21,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:17:21,987 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:17:21,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:17:21,994 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:17:21,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:17:21,999 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:17:22,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:17:22,007 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 00:17:22,028 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 00:17:22,061 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:17:22,061 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:17:22,065 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:17:22,065 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:17:22,065 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:17:22,065 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:17:22,066 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:17:22,066 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:17:22,066 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:17:22,066 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:17:22,066 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:17:22,067 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:17:22,067 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:17:22,067 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:17:22,069 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:17:22,069 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:17:22,070 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:17:22,071 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:17:22,071 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:17:22,071 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:17:22,072 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:17:22,072 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:17:22,072 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:17:22,072 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:17:22,072 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:17:22,073 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:17:22,073 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:17:22,073 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:17:22,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:17:22,074 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:17:22,074 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:17:22,074 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:17:22,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:17:22,074 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:17:22,075 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:17:22,075 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:17:22,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:17:22,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:17:22,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:17:22,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:17:22,154 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:17:22,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label42_true-unreach-call.c [2018-10-25 00:17:22,210 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff5d423a7/72608249df9b4c96a2bae0dc21c957f5/FLAGbe6d26e37 [2018-10-25 00:17:22,862 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:17:22,863 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label42_true-unreach-call.c [2018-10-25 00:17:22,882 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff5d423a7/72608249df9b4c96a2bae0dc21c957f5/FLAGbe6d26e37 [2018-10-25 00:17:22,902 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff5d423a7/72608249df9b4c96a2bae0dc21c957f5 [2018-10-25 00:17:22,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:17:22,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:17:22,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:22,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:17:22,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:17:22,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:22" (1/1) ... [2018-10-25 00:17:22,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6f7036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:22, skipping insertion in model container [2018-10-25 00:17:22,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:22" (1/1) ... [2018-10-25 00:17:22,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:17:23,050 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:17:23,789 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:23,794 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:17:24,184 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:24,210 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:17:24,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24 WrapperNode [2018-10-25 00:17:24,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:24,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:24,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:17:24,212 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:17:24,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:24,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:17:24,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:17:24,565 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:17:24,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... [2018-10-25 00:17:24,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:17:24,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:17:24,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:17:24,719 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:17:24,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:17:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:17:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:17:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:17:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:17:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:17:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:17:29,777 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:17:29,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:17:29 BoogieIcfgContainer [2018-10-25 00:17:29,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:17:29,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:17:29,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:17:29,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:17:29,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:17:22" (1/3) ... [2018-10-25 00:17:29,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fecabc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:17:29, skipping insertion in model container [2018-10-25 00:17:29,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:24" (2/3) ... [2018-10-25 00:17:29,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fecabc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:17:29, skipping insertion in model container [2018-10-25 00:17:29,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:17:29" (3/3) ... [2018-10-25 00:17:29,803 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label42_true-unreach-call.c [2018-10-25 00:17:29,814 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:17:29,828 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:17:29,848 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:17:29,905 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:17:29,905 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:17:29,905 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:17:29,906 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:17:29,906 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:17:29,906 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:17:29,906 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:17:29,906 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:17:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:17:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-25 00:17:29,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:29,993 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:29,998 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:30,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1722479500, now seen corresponding path program 1 times [2018-10-25 00:17:30,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:30,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:30,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:30,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:30,072 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:31,105 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:17:31,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:31,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:31,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 00:17:31,540 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:31,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 00:17:31,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 00:17:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:31,567 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-25 00:17:35,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:35,168 INFO L93 Difference]: Finished difference Result 1080 states and 1936 transitions. [2018-10-25 00:17:35,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 00:17:35,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2018-10-25 00:17:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:35,200 INFO L225 Difference]: With dead ends: 1080 [2018-10-25 00:17:35,200 INFO L226 Difference]: Without dead ends: 762 [2018-10-25 00:17:35,209 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-10-25 00:17:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 520. [2018-10-25 00:17:35,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-10-25 00:17:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-10-25 00:17:35,308 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 203 [2018-10-25 00:17:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:35,310 INFO L481 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-10-25 00:17:35,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 00:17:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-10-25 00:17:35,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-25 00:17:35,318 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:35,319 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:35,319 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:35,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:35,320 INFO L82 PathProgramCache]: Analyzing trace with hash 951455952, now seen corresponding path program 1 times [2018-10-25 00:17:35,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:35,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:35,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:35,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:35,322 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:35,681 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:17:36,051 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-25 00:17:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:36,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:36,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-25 00:17:36,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:36,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 00:17:36,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 00:17:36,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-25 00:17:36,236 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 7 states. [2018-10-25 00:17:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:39,628 INFO L93 Difference]: Finished difference Result 1609 states and 2945 transitions. [2018-10-25 00:17:39,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-25 00:17:39,631 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2018-10-25 00:17:39,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:39,647 INFO L225 Difference]: With dead ends: 1609 [2018-10-25 00:17:39,648 INFO L226 Difference]: Without dead ends: 1095 [2018-10-25 00:17:39,652 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-25 00:17:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-10-25 00:17:39,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1030. [2018-10-25 00:17:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2018-10-25 00:17:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1816 transitions. [2018-10-25 00:17:39,766 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1816 transitions. Word has length 220 [2018-10-25 00:17:39,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:39,766 INFO L481 AbstractCegarLoop]: Abstraction has 1030 states and 1816 transitions. [2018-10-25 00:17:39,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 00:17:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1816 transitions. [2018-10-25 00:17:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-25 00:17:39,775 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:39,775 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:39,777 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:39,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:39,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1564649131, now seen corresponding path program 1 times [2018-10-25 00:17:39,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:39,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:39,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:39,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:39,781 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:40,080 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:17:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:40,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:40,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:17:40,179 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:40,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:17:40,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:17:40,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:17:40,181 INFO L87 Difference]: Start difference. First operand 1030 states and 1816 transitions. Second operand 6 states. [2018-10-25 00:17:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:43,461 INFO L93 Difference]: Finished difference Result 3134 states and 5772 transitions. [2018-10-25 00:17:43,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-25 00:17:43,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2018-10-25 00:17:43,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:43,483 INFO L225 Difference]: With dead ends: 3134 [2018-10-25 00:17:43,483 INFO L226 Difference]: Without dead ends: 2110 [2018-10-25 00:17:43,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:17:43,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2018-10-25 00:17:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 2036. [2018-10-25 00:17:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2036 states. [2018-10-25 00:17:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 3605 transitions. [2018-10-25 00:17:43,581 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 3605 transitions. Word has length 221 [2018-10-25 00:17:43,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:43,582 INFO L481 AbstractCegarLoop]: Abstraction has 2036 states and 3605 transitions. [2018-10-25 00:17:43,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:17:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 3605 transitions. [2018-10-25 00:17:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-25 00:17:43,592 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:43,593 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:43,593 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:43,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:43,594 INFO L82 PathProgramCache]: Analyzing trace with hash -767863881, now seen corresponding path program 1 times [2018-10-25 00:17:43,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:43,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:43,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:43,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:43,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:17:43,929 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:43,929 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:17:43,932 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-10-25 00:17:43,939 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [25], [29], [33], [37], [41], [44], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1085], [1087], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:17:44,007 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:17:44,008 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:17:45,357 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:17:45,359 INFO L272 AbstractInterpreter]: Visited 204 different actions 204 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:17:45,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:45,398 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:17:46,633 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 74.64% of their original sizes. [2018-10-25 00:17:46,634 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:17:47,234 INFO L413 sIntCurrentIteration]: We have 229 unified AI predicates [2018-10-25 00:17:47,234 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:17:47,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:17:47,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-10-25 00:17:47,236 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:47,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-25 00:17:47,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-25 00:17:47,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2018-10-25 00:17:47,237 INFO L87 Difference]: Start difference. First operand 2036 states and 3605 transitions. Second operand 17 states. [2018-10-25 00:18:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:44,736 INFO L93 Difference]: Finished difference Result 4276 states and 7590 transitions. [2018-10-25 00:18:44,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:18:44,737 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 230 [2018-10-25 00:18:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:44,749 INFO L225 Difference]: With dead ends: 4276 [2018-10-25 00:18:44,750 INFO L226 Difference]: Without dead ends: 2246 [2018-10-25 00:18:44,756 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2018-10-25 00:18:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2018-10-25 00:18:44,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2244. [2018-10-25 00:18:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2018-10-25 00:18:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3822 transitions. [2018-10-25 00:18:44,822 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3822 transitions. Word has length 230 [2018-10-25 00:18:44,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:44,822 INFO L481 AbstractCegarLoop]: Abstraction has 2244 states and 3822 transitions. [2018-10-25 00:18:44,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-25 00:18:44,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3822 transitions. [2018-10-25 00:18:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-25 00:18:44,832 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:44,833 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:44,833 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:44,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash 72160122, now seen corresponding path program 1 times [2018-10-25 00:18:44,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:44,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:44,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:44,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:44,835 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:45,107 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:18:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:18:45,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:18:45,287 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:18:45,287 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-10-25 00:18:45,288 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [24], [25], [29], [33], [37], [41], [44], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1085], [1087], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:18:45,299 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:18:45,299 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:18:46,452 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:18:46,452 INFO L272 AbstractInterpreter]: Visited 208 different actions 410 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:18:46,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:46,459 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:18:48,247 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 74.38% of their original sizes. [2018-10-25 00:18:48,248 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:18:48,841 INFO L413 sIntCurrentIteration]: We have 241 unified AI predicates [2018-10-25 00:18:48,841 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:18:48,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:18:48,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [9] total 29 [2018-10-25 00:18:48,841 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:48,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-25 00:18:48,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-25 00:18:48,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2018-10-25 00:18:48,843 INFO L87 Difference]: Start difference. First operand 2244 states and 3822 transitions. Second operand 22 states. [2018-10-25 00:20:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:20:07,646 INFO L93 Difference]: Finished difference Result 4488 states and 7812 transitions. [2018-10-25 00:20:07,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:20:07,646 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 242 [2018-10-25 00:20:07,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:20:07,659 INFO L225 Difference]: With dead ends: 4488 [2018-10-25 00:20:07,660 INFO L226 Difference]: Without dead ends: 2458 [2018-10-25 00:20:07,666 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2018-10-25 00:20:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2018-10-25 00:20:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2455. [2018-10-25 00:20:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2455 states. [2018-10-25 00:20:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 4048 transitions. [2018-10-25 00:20:07,742 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 4048 transitions. Word has length 242 [2018-10-25 00:20:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:20:07,743 INFO L481 AbstractCegarLoop]: Abstraction has 2455 states and 4048 transitions. [2018-10-25 00:20:07,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-25 00:20:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 4048 transitions. [2018-10-25 00:20:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-25 00:20:07,752 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:20:07,752 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:20:07,753 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:20:07,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:20:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash 616040287, now seen corresponding path program 1 times [2018-10-25 00:20:07,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:20:07,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:20:07,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:20:07,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:20:07,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:20:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:20:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:20:08,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:20:08,085 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:20:08,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-10-25 00:20:08,086 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [44], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1085], [1087], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:20:08,093 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:20:08,093 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:20:10,704 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:20:10,704 INFO L272 AbstractInterpreter]: Visited 207 different actions 407 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:20:10,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:20:10,713 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:20:13,630 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 78.84% of their original sizes. [2018-10-25 00:20:13,631 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:20:21,062 INFO L413 sIntCurrentIteration]: We have 241 unified AI predicates [2018-10-25 00:20:21,062 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:20:21,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:20:21,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-25 00:20:21,063 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:20:21,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-25 00:20:21,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-25 00:20:21,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-10-25 00:20:21,064 INFO L87 Difference]: Start difference. First operand 2455 states and 4048 transitions. Second operand 13 states. Received shutdown request... [2018-10-25 00:21:34,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-25 00:21:34,643 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:21:34,648 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:21:34,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:21:34 BoogieIcfgContainer [2018-10-25 00:21:34,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:21:34,650 INFO L168 Benchmark]: Toolchain (without parser) took 251734.67 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -792.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:34,651 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 00:21:34,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1294.13 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:34,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 352.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -868.3 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:34,654 INFO L168 Benchmark]: Boogie Preprocessor took 154.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:34,655 INFO L168 Benchmark]: RCFGBuilder took 5059.41 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: 266.9 MB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:34,655 INFO L168 Benchmark]: TraceAbstraction took 244867.64 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -292.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:34,660 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1294.13 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 352.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -868.3 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 154.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5059.41 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: 266.9 MB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244867.64 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -292.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1623]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1623). Cancelled while BasicCegarLoop was constructing difference of abstraction (2455states) and FLOYD_HOARE automaton (currently 17 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (6443 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 244.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 220.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1282 SDtfs, 8087 SDslu, 2484 SDs, 0 SdLazy, 15750 SolverSat, 1240 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 756 GetRequests, 543 SyntacticMatches, 133 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2455occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.2s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9989804456345817 AbsIntWeakeningRatio, 0.270042194092827 AbsIntAvgWeakeningVarsNumRemoved, 20.48663853727145 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 386 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1358 NumberOfCodeBlocks, 1358 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1352 ConstructedInterpolants, 0 QuantifiedInterpolants, 756157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 144/172 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown