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/Problem02_label18_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:25:19,265 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:25:19,267 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:25:19,280 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:25:19,281 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:25:19,282 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:25:19,283 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:25:19,285 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:25:19,287 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:25:19,287 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:25:19,288 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:25:19,289 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:25:19,290 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:25:19,291 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:25:19,292 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:25:19,293 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:25:19,293 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:25:19,295 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:25:19,297 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:25:19,299 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:25:19,300 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:25:19,301 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:25:19,304 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:25:19,310 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:25:19,310 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:25:19,311 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:25:19,312 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:25:19,312 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 [2018-10-24 19:25:19,328 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:25:19,328 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:25:19,329 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:25:19,329 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:25:19,330 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:25:19,330 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:25:19,330 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:25:19,330 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:25:19,330 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:25:19,331 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:25:19,331 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:25:19,331 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:25:19,332 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:25:19,332 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:25:19,332 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:25:19,332 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:25:19,332 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:25:19,333 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:25:19,333 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:25:19,333 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:25:19,333 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:25:19,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:25:19,334 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:25:19,334 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:25:19,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:25:19,334 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:25:19,335 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:25:19,335 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:25:19,335 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:25:19,335 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:25:19,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:25:19,335 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:25:19,336 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:25:19,336 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:25:19,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:25:19,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:25:19,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:25:19,403 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:25:19,403 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:25:19,404 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label18_true-unreach-call_false-termination.c [2018-10-24 19:25:19,475 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c29b26b23/8aad09aebd72442ab674fa4cfb5c40e1/FLAG4962e49c7 [2018-10-24 19:25:20,061 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:25:20,062 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label18_true-unreach-call_false-termination.c [2018-10-24 19:25:20,092 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c29b26b23/8aad09aebd72442ab674fa4cfb5c40e1/FLAG4962e49c7 [2018-10-24 19:25:20,115 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c29b26b23/8aad09aebd72442ab674fa4cfb5c40e1 [2018-10-24 19:25:20,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:25:20,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:25:20,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:25:20,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:25:20,139 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:25:20,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:20,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ddff4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20, skipping insertion in model container [2018-10-24 19:25:20,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:20,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:25:20,220 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:25:20,745 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:25:20,750 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:25:20,924 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:25:20,949 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:25:20,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20 WrapperNode [2018-10-24 19:25:20,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:25:20,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:25:20,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:25:20,953 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:25:20,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:20,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:25:21,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:25:21,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:25:21,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:25:21,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (1/1) ... [2018-10-24 19:25:21,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:25:21,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:25:21,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:25:21,259 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:25:21,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (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 [2018-10-24 19:25:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:25:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:25:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:25:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:25:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:25:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:25:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:25:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:25:24,588 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:25:24,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:25:24 BoogieIcfgContainer [2018-10-24 19:25:24,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:25:24,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:25:24,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:25:24,600 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:25:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:25:20" (1/3) ... [2018-10-24 19:25:24,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d03476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:25:24, skipping insertion in model container [2018-10-24 19:25:24,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:25:20" (2/3) ... [2018-10-24 19:25:24,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d03476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:25:24, skipping insertion in model container [2018-10-24 19:25:24,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:25:24" (3/3) ... [2018-10-24 19:25:24,607 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label18_true-unreach-call_false-termination.c [2018-10-24 19:25:24,620 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:25:24,632 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:25:24,651 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:25:24,693 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:25:24,694 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:25:24,694 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:25:24,694 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:25:24,695 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:25:24,695 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:25:24,695 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:25:24,695 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:25:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-24 19:25:24,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-24 19:25:24,740 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:24,741 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] [2018-10-24 19:25:24,744 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:24,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:24,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1505826544, now seen corresponding path program 1 times [2018-10-24 19:25:24,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:24,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:24,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:24,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:24,800 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:25,439 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:25:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:25,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:25,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:25:25,549 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:25,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:25:25,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:25:25,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:25:25,577 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-24 19:25:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:27,105 INFO L93 Difference]: Finished difference Result 621 states and 1059 transitions. [2018-10-24 19:25:27,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:25:27,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2018-10-24 19:25:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:27,130 INFO L225 Difference]: With dead ends: 621 [2018-10-24 19:25:27,130 INFO L226 Difference]: Without dead ends: 382 [2018-10-24 19:25:27,137 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:25:27,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-24 19:25:27,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-24 19:25:27,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-24 19:25:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 608 transitions. [2018-10-24 19:25:27,226 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 608 transitions. Word has length 134 [2018-10-24 19:25:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:27,228 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 608 transitions. [2018-10-24 19:25:27,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:25:27,228 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 608 transitions. [2018-10-24 19:25:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-24 19:25:27,236 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:27,236 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:25:27,237 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:27,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:27,237 INFO L82 PathProgramCache]: Analyzing trace with hash -979589059, now seen corresponding path program 1 times [2018-10-24 19:25:27,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:27,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:27,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:27,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:27,243 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:27,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:27,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:25:27,759 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:27,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:25:27,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:25:27,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:27,762 INFO L87 Difference]: Start difference. First operand 382 states and 608 transitions. Second operand 5 states. [2018-10-24 19:25:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:29,208 INFO L93 Difference]: Finished difference Result 903 states and 1497 transitions. [2018-10-24 19:25:29,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:25:29,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-10-24 19:25:29,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:29,214 INFO L225 Difference]: With dead ends: 903 [2018-10-24 19:25:29,215 INFO L226 Difference]: Without dead ends: 381 [2018-10-24 19:25:29,219 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-10-24 19:25:29,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-10-24 19:25:29,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-10-24 19:25:29,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 602 transitions. [2018-10-24 19:25:29,247 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 602 transitions. Word has length 143 [2018-10-24 19:25:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:29,247 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 602 transitions. [2018-10-24 19:25:29,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:25:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 602 transitions. [2018-10-24 19:25:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-24 19:25:29,252 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:29,252 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:25:29,252 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:29,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:29,253 INFO L82 PathProgramCache]: Analyzing trace with hash 730905649, now seen corresponding path program 1 times [2018-10-24 19:25:29,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:29,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:29,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:29,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:29,255 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:29,693 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-10-24 19:25:29,842 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:29,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:29,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:25:29,843 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:29,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:25:29,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:25:29,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:29,844 INFO L87 Difference]: Start difference. First operand 381 states and 602 transitions. Second operand 5 states. [2018-10-24 19:25:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:31,845 INFO L93 Difference]: Finished difference Result 901 states and 1482 transitions. [2018-10-24 19:25:31,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:25:31,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-10-24 19:25:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:31,852 INFO L225 Difference]: With dead ends: 901 [2018-10-24 19:25:31,852 INFO L226 Difference]: Without dead ends: 380 [2018-10-24 19:25:31,857 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-10-24 19:25:31,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-10-24 19:25:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-24 19:25:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 594 transitions. [2018-10-24 19:25:31,890 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 594 transitions. Word has length 149 [2018-10-24 19:25:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:31,891 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 594 transitions. [2018-10-24 19:25:31,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:25:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 594 transitions. [2018-10-24 19:25:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 19:25:31,894 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:31,894 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:25:31,895 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:31,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1585246906, now seen corresponding path program 1 times [2018-10-24 19:25:31,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:31,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:31,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:31,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:31,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:32,146 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:25:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:32,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:32,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:25:32,551 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:32,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:25:32,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:25:32,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:25:32,552 INFO L87 Difference]: Start difference. First operand 380 states and 594 transitions. Second operand 6 states. [2018-10-24 19:25:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:35,781 INFO L93 Difference]: Finished difference Result 1193 states and 1942 transitions. [2018-10-24 19:25:35,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:25:35,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-24 19:25:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:35,792 INFO L225 Difference]: With dead ends: 1193 [2018-10-24 19:25:35,792 INFO L226 Difference]: Without dead ends: 819 [2018-10-24 19:25:35,794 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:25:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2018-10-24 19:25:35,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 807. [2018-10-24 19:25:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2018-10-24 19:25:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1208 transitions. [2018-10-24 19:25:35,857 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1208 transitions. Word has length 157 [2018-10-24 19:25:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:35,858 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 1208 transitions. [2018-10-24 19:25:35,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:25:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1208 transitions. [2018-10-24 19:25:35,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-10-24 19:25:35,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:35,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:25:35,862 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:35,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:35,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1163301558, now seen corresponding path program 1 times [2018-10-24 19:25:35,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:35,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:35,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:35,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:35,865 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:36,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:36,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:25:36,203 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:36,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:25:36,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:25:36,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:36,204 INFO L87 Difference]: Start difference. First operand 807 states and 1208 transitions. Second operand 5 states. [2018-10-24 19:25:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:37,385 INFO L93 Difference]: Finished difference Result 1753 states and 2669 transitions. [2018-10-24 19:25:37,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:25:37,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2018-10-24 19:25:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:37,396 INFO L225 Difference]: With dead ends: 1753 [2018-10-24 19:25:37,396 INFO L226 Difference]: Without dead ends: 804 [2018-10-24 19:25:37,401 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2018-10-24 19:25:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2018-10-24 19:25:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-10-24 19:25:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1190 transitions. [2018-10-24 19:25:37,443 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1190 transitions. Word has length 159 [2018-10-24 19:25:37,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:37,443 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1190 transitions. [2018-10-24 19:25:37,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:25:37,444 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1190 transitions. [2018-10-24 19:25:37,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-24 19:25:37,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:37,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:25:37,448 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:37,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:37,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2009891506, now seen corresponding path program 1 times [2018-10-24 19:25:37,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:37,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:37,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:37,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:37,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:37,892 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 19:25:38,150 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 19:25:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:38,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:38,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:25:38,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:38,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:25:38,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:25:38,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:38,244 INFO L87 Difference]: Start difference. First operand 804 states and 1190 transitions. Second operand 5 states. [2018-10-24 19:25:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:39,380 INFO L93 Difference]: Finished difference Result 1747 states and 2630 transitions. [2018-10-24 19:25:39,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:25:39,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2018-10-24 19:25:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:39,400 INFO L225 Difference]: With dead ends: 1747 [2018-10-24 19:25:39,400 INFO L226 Difference]: Without dead ends: 801 [2018-10-24 19:25:39,404 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:25:39,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2018-10-24 19:25:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2018-10-24 19:25:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2018-10-24 19:25:39,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1169 transitions. [2018-10-24 19:25:39,435 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1169 transitions. Word has length 161 [2018-10-24 19:25:39,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:39,436 INFO L481 AbstractCegarLoop]: Abstraction has 801 states and 1169 transitions. [2018-10-24 19:25:39,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:25:39,436 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1169 transitions. [2018-10-24 19:25:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-24 19:25:39,440 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:39,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:25:39,441 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:39,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:39,442 INFO L82 PathProgramCache]: Analyzing trace with hash 222122666, now seen corresponding path program 1 times [2018-10-24 19:25:39,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:39,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:39,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:39,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:39,451 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:39,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:25:39,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:25:39,687 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:25:39,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:25:39,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:25:39,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:25:39,688 INFO L87 Difference]: Start difference. First operand 801 states and 1169 transitions. Second operand 6 states. [2018-10-24 19:25:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:41,734 INFO L93 Difference]: Finished difference Result 2381 states and 3621 transitions. [2018-10-24 19:25:41,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:25:41,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-10-24 19:25:41,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:41,745 INFO L225 Difference]: With dead ends: 2381 [2018-10-24 19:25:41,745 INFO L226 Difference]: Without dead ends: 1586 [2018-10-24 19:25:41,750 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 [2018-10-24 19:25:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2018-10-24 19:25:41,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1558. [2018-10-24 19:25:41,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2018-10-24 19:25:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2225 transitions. [2018-10-24 19:25:41,798 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2225 transitions. Word has length 165 [2018-10-24 19:25:41,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:41,799 INFO L481 AbstractCegarLoop]: Abstraction has 1558 states and 2225 transitions. [2018-10-24 19:25:41,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:25:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2225 transitions. [2018-10-24 19:25:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-24 19:25:41,805 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:41,805 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 19:25:41,806 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:41,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:41,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1723746433, now seen corresponding path program 1 times [2018-10-24 19:25:41,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:41,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:41,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:41,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:41,808 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:25:42,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:25:42,326 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:25:42,327 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-10-24 19:25:42,329 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [743], [745], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:25:42,404 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:25:42,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:27:04,505 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:27:04,507 INFO L272 AbstractInterpreter]: Visited 138 different actions 540 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-10-24 19:27:04,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:27:04,519 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:27:11,838 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 87.5% of their original sizes. [2018-10-24 19:27:11,838 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 19:29:40,821 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:29:40,826 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:29:40,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:29:40 BoogieIcfgContainer [2018-10-24 19:29:40,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:29:40,829 INFO L168 Benchmark]: Toolchain (without parser) took 260697.80 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 19:29:40,832 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:29:40,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.88 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:29:40,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 235.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 696.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -772.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:29:40,835 INFO L168 Benchmark]: Boogie Preprocessor took 71.43 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:29:40,835 INFO L168 Benchmark]: RCFGBuilder took 3330.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:29:40,836 INFO L168 Benchmark]: TraceAbstraction took 256233.31 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 19:29:40,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 815.88 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 235.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 696.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -772.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.43 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3330.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256233.31 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 553]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 553). Cancelled while BasicCegarLoop was analyzing trace of length 172 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 256.1s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 12.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 854 SDtfs, 3988 SDslu, 687 SDs, 0 SdLazy, 5049 SolverSat, 1075 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1558occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 82.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9945527570914572 AbsIntWeakeningRatio, 0.19411764705882353 AbsIntAvgWeakeningVarsNumRemoved, 1343.9470588235295 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1068 NumberOfCodeBlocks, 1068 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1061 ConstructedInterpolants, 0 QuantifiedInterpolants, 1243530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 112/112 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown