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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:19:19,003 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:19:19,008 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:19:19,023 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:19:19,024 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:19:19,025 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:19:19,026 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:19:19,028 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:19:19,030 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:19:19,030 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:19:19,032 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:19:19,032 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:19:19,033 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:19:19,034 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:19:19,035 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:19:19,036 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:19:19,037 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:19:19,038 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:19:19,041 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:19:19,042 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:19:19,043 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:19:19,045 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:19:19,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:19:19,047 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:19:19,048 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:19:19,049 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:19:19,050 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:19:19,050 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:19:19,051 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:19:19,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:19:19,053 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:19:19,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:19:19,054 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:19:19,054 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:19:19,055 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:19:19,056 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:19:19,056 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:19:19,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:19:19,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:19:19,075 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:19:19,075 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:19:19,075 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:19:19,076 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:19:19,076 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:19:19,077 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:19:19,077 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:19:19,077 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:19:19,077 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:19:19,077 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:19:19,078 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:19:19,078 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:19:19,078 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:19:19,079 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:19:19,080 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:19:19,080 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:19:19,080 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:19:19,080 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:19:19,080 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:19:19,080 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:19:19,081 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:19:19,081 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:19:19,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:19:19,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:19:19,081 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:19:19,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:19:19,082 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:19:19,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:19:19,083 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:19:19,083 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:19:19,083 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:19:19,083 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:19:19,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:19:19,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:19:19,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:19:19,158 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:19:19,158 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:19:19,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c [2018-10-27 03:19:19,227 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2777a1a26/6c55c78a32ec417eac3939163900a74f/FLAG81579c1d9 [2018-10-27 03:19:19,950 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:19:19,953 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c [2018-10-27 03:19:19,971 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2777a1a26/6c55c78a32ec417eac3939163900a74f/FLAG81579c1d9 [2018-10-27 03:19:19,990 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2777a1a26/6c55c78a32ec417eac3939163900a74f [2018-10-27 03:19:20,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:19:20,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:19:20,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:19:20,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:19:20,010 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:19:20,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:19:19" (1/1) ... [2018-10-27 03:19:20,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:20, skipping insertion in model container [2018-10-27 03:19:20,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:19:19" (1/1) ... [2018-10-27 03:19:20,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:19:20,102 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:19:20,873 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:19:20,880 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:19:21,160 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:19:21,180 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:19:21,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21 WrapperNode [2018-10-27 03:19:21,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:19:21,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:19:21,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:19:21,183 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:19:21,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:19:21,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:19:21,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:19:21,518 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:19:21,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (1/1) ... [2018-10-27 03:19:21,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:19:21,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:19:21,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:19:21,701 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:19:21,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (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 [2018-10-27 03:19:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:19:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:19:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:19:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:19:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:19:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:19:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:19:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:19:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:19:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:19:28,863 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:19:28,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:19:28 BoogieIcfgContainer [2018-10-27 03:19:28,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:19:28,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:19:28,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:19:28,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:19:28,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:19:19" (1/3) ... [2018-10-27 03:19:28,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cd59e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:19:28, skipping insertion in model container [2018-10-27 03:19:28,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:19:21" (2/3) ... [2018-10-27 03:19:28,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cd59e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:19:28, skipping insertion in model container [2018-10-27 03:19:28,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:19:28" (3/3) ... [2018-10-27 03:19:28,874 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label12_true-unreach-call.c [2018-10-27 03:19:28,883 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:19:28,892 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:19:28,910 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:19:28,952 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:19:28,952 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:19:28,952 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:19:28,952 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:19:28,952 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:19:28,953 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:19:28,953 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:19:28,953 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:19:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 03:19:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-27 03:19:28,995 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:28,996 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:28,998 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:29,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:29,004 INFO L82 PathProgramCache]: Analyzing trace with hash 806508676, now seen corresponding path program 1 times [2018-10-27 03:19:29,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:29,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:29,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:29,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:29,056 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:29,512 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:19:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:29,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:29,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:19:29,653 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:29,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:19:29,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:19:29,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:19:29,680 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-27 03:19:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:36,626 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-27 03:19:36,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:19:36,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-10-27 03:19:36,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:36,658 INFO L225 Difference]: With dead ends: 1156 [2018-10-27 03:19:36,658 INFO L226 Difference]: Without dead ends: 744 [2018-10-27 03:19:36,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:19:36,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-27 03:19:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-27 03:19:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 03:19:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-10-27 03:19:36,781 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 46 [2018-10-27 03:19:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:36,782 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-10-27 03:19:36,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:19:36,782 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-10-27 03:19:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-27 03:19:36,790 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:36,790 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:36,790 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:36,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:36,791 INFO L82 PathProgramCache]: Analyzing trace with hash 875777906, now seen corresponding path program 1 times [2018-10-27 03:19:36,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:36,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:36,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:36,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:36,793 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:37,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:37,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:19:37,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:37,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:19:37,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:19:37,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:19:37,102 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-10-27 03:19:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:43,572 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-10-27 03:19:43,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:19:43,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-10-27 03:19:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:43,587 INFO L225 Difference]: With dead ends: 2194 [2018-10-27 03:19:43,587 INFO L226 Difference]: Without dead ends: 1456 [2018-10-27 03:19:43,591 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:19:43,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-10-27 03:19:43,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-10-27 03:19:43,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-10-27 03:19:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-10-27 03:19:43,663 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 116 [2018-10-27 03:19:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:43,664 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-10-27 03:19:43,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:19:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-10-27 03:19:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-27 03:19:43,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:43,681 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:43,682 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:43,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:43,683 INFO L82 PathProgramCache]: Analyzing trace with hash -545095373, now seen corresponding path program 1 times [2018-10-27 03:19:43,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:43,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:43,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:43,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:43,685 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:43,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:43,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:19:43,984 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:43,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:19:43,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:19:43,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:19:43,986 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-10-27 03:19:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:51,090 INFO L93 Difference]: Finished difference Result 3939 states and 7029 transitions. [2018-10-27 03:19:51,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:19:51,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-27 03:19:51,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:51,120 INFO L225 Difference]: With dead ends: 3939 [2018-10-27 03:19:51,120 INFO L226 Difference]: Without dead ends: 2509 [2018-10-27 03:19:51,131 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:19:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2018-10-27 03:19:51,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2479. [2018-10-27 03:19:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-10-27 03:19:51,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3998 transitions. [2018-10-27 03:19:51,221 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3998 transitions. Word has length 145 [2018-10-27 03:19:51,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:51,222 INFO L481 AbstractCegarLoop]: Abstraction has 2479 states and 3998 transitions. [2018-10-27 03:19:51,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:19:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3998 transitions. [2018-10-27 03:19:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-27 03:19:51,225 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:51,226 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:51,226 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:51,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:51,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1167752721, now seen corresponding path program 1 times [2018-10-27 03:19:51,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:51,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:51,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:51,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:51,228 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:51,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:51,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:19:51,507 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:51,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:19:51,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:19:51,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:19:51,508 INFO L87 Difference]: Start difference. First operand 2479 states and 3998 transitions. Second operand 6 states. [2018-10-27 03:19:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:19:57,017 INFO L93 Difference]: Finished difference Result 6392 states and 10523 transitions. [2018-10-27 03:19:57,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:19:57,018 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-10-27 03:19:57,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:19:57,046 INFO L225 Difference]: With dead ends: 6392 [2018-10-27 03:19:57,046 INFO L226 Difference]: Without dead ends: 3919 [2018-10-27 03:19:57,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:19:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2018-10-27 03:19:57,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3887. [2018-10-27 03:19:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3887 states. [2018-10-27 03:19:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3887 states to 3887 states and 5575 transitions. [2018-10-27 03:19:57,173 INFO L78 Accepts]: Start accepts. Automaton has 3887 states and 5575 transitions. Word has length 163 [2018-10-27 03:19:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:19:57,173 INFO L481 AbstractCegarLoop]: Abstraction has 3887 states and 5575 transitions. [2018-10-27 03:19:57,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:19:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3887 states and 5575 transitions. [2018-10-27 03:19:57,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-27 03:19:57,177 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:19:57,178 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:19:57,178 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:19:57,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:19:57,179 INFO L82 PathProgramCache]: Analyzing trace with hash 874866507, now seen corresponding path program 1 times [2018-10-27 03:19:57,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:19:57,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:57,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:19:57,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:19:57,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:19:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:19:57,455 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:19:57,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:19:57,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:19:57,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:57,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:19:57,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:19:57,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:19:57,458 INFO L87 Difference]: Start difference. First operand 3887 states and 5575 transitions. Second operand 4 states. [2018-10-27 03:20:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:20:01,324 INFO L93 Difference]: Finished difference Result 9489 states and 13616 transitions. [2018-10-27 03:20:01,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:20:01,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 229 [2018-10-27 03:20:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:20:01,355 INFO L225 Difference]: With dead ends: 9489 [2018-10-27 03:20:01,355 INFO L226 Difference]: Without dead ends: 5608 [2018-10-27 03:20:01,376 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:20:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2018-10-27 03:20:01,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 5270. [2018-10-27 03:20:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5270 states. [2018-10-27 03:20:01,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7072 transitions. [2018-10-27 03:20:01,510 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7072 transitions. Word has length 229 [2018-10-27 03:20:01,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:20:01,511 INFO L481 AbstractCegarLoop]: Abstraction has 5270 states and 7072 transitions. [2018-10-27 03:20:01,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:20:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7072 transitions. [2018-10-27 03:20:01,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-27 03:20:01,519 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:20:01,520 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:20:01,520 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:20:01,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:20:01,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1028530099, now seen corresponding path program 1 times [2018-10-27 03:20:01,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:20:01,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:20:01,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:20:01,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:20:01,522 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:20:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:20:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 221 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-27 03:20:02,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:20:02,478 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:20:02,479 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-10-27 03:20:02,481 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [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], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [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], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 03:20:02,564 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:20:02,564 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:20:04,874 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:20:05,816 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:20:05,818 INFO L272 AbstractInterpreter]: Visited 136 different actions 136 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:20:05,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:20:05,827 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:20:08,733 INFO L227 lantSequenceWeakener]: Weakened 336 states. On average, predicates are now at 77.73% of their original sizes. [2018-10-27 03:20:08,733 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:20:09,340 INFO L415 sIntCurrentIteration]: We unified 346 AI predicates to 346 [2018-10-27 03:20:09,340 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:20:09,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:20:09,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2018-10-27 03:20:09,341 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:20:09,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 03:20:09,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 03:20:09,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:20:09,343 INFO L87 Difference]: Start difference. First operand 5270 states and 7072 transitions. Second operand 8 states. [2018-10-27 03:20:37,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:20:37,983 INFO L93 Difference]: Finished difference Result 10874 states and 14516 transitions. [2018-10-27 03:20:37,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:20:37,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 347 [2018-10-27 03:20:37,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:20:38,006 INFO L225 Difference]: With dead ends: 10874 [2018-10-27 03:20:38,006 INFO L226 Difference]: Without dead ends: 5610 [2018-10-27 03:20:38,024 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 348 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:20:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2018-10-27 03:20:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5608. [2018-10-27 03:20:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5608 states. [2018-10-27 03:20:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 7418 transitions. [2018-10-27 03:20:38,148 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 7418 transitions. Word has length 347 [2018-10-27 03:20:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:20:38,149 INFO L481 AbstractCegarLoop]: Abstraction has 5608 states and 7418 transitions. [2018-10-27 03:20:38,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 03:20:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 7418 transitions. [2018-10-27 03:20:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-10-27 03:20:38,160 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:20:38,161 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 03:20:38,161 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:20:38,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:20:38,162 INFO L82 PathProgramCache]: Analyzing trace with hash -194390703, now seen corresponding path program 1 times [2018-10-27 03:20:38,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:20:38,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:20:38,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:20:38,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:20:38,163 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:20:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:20:38,473 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 03:20:38,720 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 233 proven. 236 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-10-27 03:20:38,721 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:20:38,721 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:20:38,721 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2018-10-27 03:20:38,722 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [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], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [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], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 03:20:38,728 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:20:38,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:20:39,964 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:20:48,462 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:20:48,463 INFO L272 AbstractInterpreter]: Visited 140 different actions 411 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:20:48,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:20:48,473 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:20:53,425 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 78.81% of their original sizes. [2018-10-27 03:20:53,426 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:22:25,742 INFO L415 sIntCurrentIteration]: We unified 438 AI predicates to 438 [2018-10-27 03:22:25,742 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:22:25,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:22:25,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-10-27 03:22:25,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:22:25,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 03:22:25,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 03:22:25,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-10-27 03:22:25,745 INFO L87 Difference]: Start difference. First operand 5608 states and 7418 transitions. Second operand 17 states. Received shutdown request... [2018-10-27 03:23:18,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-27 03:23:18,246 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:23:18,252 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:23:18,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:23:18 BoogieIcfgContainer [2018-10-27 03:23:18,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:23:18,253 INFO L168 Benchmark]: Toolchain (without parser) took 238249.17 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -497.5 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-27 03:23:18,254 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:23:18,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1176.01 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:23:18,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 334.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -842.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:23:18,256 INFO L168 Benchmark]: Boogie Preprocessor took 182.42 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. [2018-10-27 03:23:18,257 INFO L168 Benchmark]: RCFGBuilder took 7164.55 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: 254.1 MB). Peak memory consumption was 254.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:23:18,259 INFO L168 Benchmark]: TraceAbstraction took 229386.42 ms. Allocated memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: 1.1 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: -7.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-27 03:23:18,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1176.01 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 334.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -842.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.42 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 7164.55 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: 254.1 MB). Peak memory consumption was 254.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229386.42 ms. Allocated memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: 1.1 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: -7.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was constructing difference of abstraction (5608states) and FLOYD_HOARE automaton (currently 17 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (156 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 229.3s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 111.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 947 SDtfs, 7245 SDslu, 584 SDs, 0 SdLazy, 9657 SolverSat, 3048 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 46.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 832 GetRequests, 659 SyntacticMatches, 120 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 94.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5608occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9963398402839394 AbsIntWeakeningRatio, 0.08928571428571429 AbsIntAvgWeakeningVarsNumRemoved, 600.3890306122449 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 422 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1485 NumberOfCodeBlocks, 1485 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1478 ConstructedInterpolants, 0 QuantifiedInterpolants, 2315865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 860/1165 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown