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_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:25:17,368 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:25:17,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:25:17,386 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:25:17,386 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:25:17,388 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:25:17,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:25:17,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:25:17,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:25:17,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:25:17,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:25:17,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:25:17,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:25:17,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:25:17,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:25:17,409 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:25:17,410 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:25:17,414 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:25:17,416 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:25:17,417 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:25:17,418 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:25:17,420 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:25:17,423 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:25:17,423 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:25:17,423 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:25:17,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:25:17,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:25:17,427 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:25:17,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:25:17,430 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:25:17,430 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:25:17,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:25:17,432 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:25:17,432 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:25:17,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:25:17,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:25:17,434 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 03:25:17,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:25:17,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:25:17,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:25:17,455 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:25:17,456 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:25:17,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:25:17,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:25:17,456 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:25:17,456 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:25:17,457 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:25:17,457 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:25:17,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:25:17,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:25:17,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:25:17,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:25:17,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:25:17,459 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:25:17,459 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:25:17,459 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:25:17,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:25:17,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:25:17,460 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:25:17,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:25:17,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:25:17,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:25:17,461 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:25:17,461 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:25:17,461 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:25:17,461 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:25:17,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:25:17,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:25:17,462 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:25:17,462 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:25:17,462 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:25:17,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:25:17,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:25:17,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:25:17,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:25:17,548 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:25:17,549 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label48_true-unreach-call.c [2018-10-27 03:25:17,612 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e391032eb/6de916bd88f448e6bd335194d0da8edc/FLAG6d61302b4 [2018-10-27 03:25:18,333 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:25:18,334 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label48_true-unreach-call.c [2018-10-27 03:25:18,360 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e391032eb/6de916bd88f448e6bd335194d0da8edc/FLAG6d61302b4 [2018-10-27 03:25:18,374 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e391032eb/6de916bd88f448e6bd335194d0da8edc [2018-10-27 03:25:18,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:25:18,387 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:25:18,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:25:18,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:25:18,392 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:25:18,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:25:18" (1/1) ... [2018-10-27 03:25:18,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd54a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:18, skipping insertion in model container [2018-10-27 03:25:18,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:25:18" (1/1) ... [2018-10-27 03:25:18,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:25:18,488 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:25:19,196 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:25:19,201 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:25:19,472 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:25:19,495 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:25:19,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19 WrapperNode [2018-10-27 03:25:19,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:25:19,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:25:19,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:25:19,498 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:25:19,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:19,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:19,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:25:19,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:25:19,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:25:19,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:25:19,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:19,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:19,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:19,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:19,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:20,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:20,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (1/1) ... [2018-10-27 03:25:20,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:25:20,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:25:20,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:25:20,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:25:20,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (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 03:25:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:25:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:25:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:25:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:25:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:25:20,130 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:25:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:25:20,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:25:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:25:20,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:25:26,596 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:25:26,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:25:26 BoogieIcfgContainer [2018-10-27 03:25:26,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:25:26,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:25:26,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:25:26,601 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:25:26,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:25:18" (1/3) ... [2018-10-27 03:25:26,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2237d213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:25:26, skipping insertion in model container [2018-10-27 03:25:26,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:25:19" (2/3) ... [2018-10-27 03:25:26,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2237d213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:25:26, skipping insertion in model container [2018-10-27 03:25:26,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:25:26" (3/3) ... [2018-10-27 03:25:26,605 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label48_true-unreach-call.c [2018-10-27 03:25:26,616 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:25:26,628 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:25:26,650 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:25:26,692 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:25:26,692 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:25:26,692 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:25:26,692 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:25:26,693 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:25:26,693 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:25:26,693 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:25:26,693 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:25:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 03:25:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-27 03:25:26,740 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:25:26,741 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] [2018-10-27 03:25:26,744 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:25:26,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:25:26,750 INFO L82 PathProgramCache]: Analyzing trace with hash -198715549, now seen corresponding path program 1 times [2018-10-27 03:25:26,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:25:26,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:25:26,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:25:26,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:25:26,809 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:25:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:25:27,252 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:25:27,375 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 03:25:27,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:25:27,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:25:27,378 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:25:27,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:25:27,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:25:27,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:25:27,405 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-27 03:25:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:25:31,287 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-27 03:25:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:25:31,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-10-27 03:25:31,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:25:31,315 INFO L225 Difference]: With dead ends: 1156 [2018-10-27 03:25:31,315 INFO L226 Difference]: Without dead ends: 744 [2018-10-27 03:25:31,332 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 [2018-10-27 03:25:31,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-27 03:25:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-27 03:25:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 03:25:31,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-10-27 03:25:31,514 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 71 [2018-10-27 03:25:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:25:31,516 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-10-27 03:25:31,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:25:31,517 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-10-27 03:25:31,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-27 03:25:31,532 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:25:31,532 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:25:31,533 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:25:31,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:25:31,533 INFO L82 PathProgramCache]: Analyzing trace with hash 914893272, now seen corresponding path program 1 times [2018-10-27 03:25:31,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:25:31,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:25:31,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:25:31,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:25:31,536 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:25:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:25:31,917 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:25:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:25:32,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:25:32,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:25:32,050 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:25:32,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:25:32,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:25:32,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:25:32,054 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-10-27 03:25:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:25:37,311 INFO L93 Difference]: Finished difference Result 2189 states and 4061 transitions. [2018-10-27 03:25:37,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:25:37,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-10-27 03:25:37,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:25:37,329 INFO L225 Difference]: With dead ends: 2189 [2018-10-27 03:25:37,329 INFO L226 Difference]: Without dead ends: 1451 [2018-10-27 03:25:37,333 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:25:37,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2018-10-27 03:25:37,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1441. [2018-10-27 03:25:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2018-10-27 03:25:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2402 transitions. [2018-10-27 03:25:37,395 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2402 transitions. Word has length 143 [2018-10-27 03:25:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:25:37,396 INFO L481 AbstractCegarLoop]: Abstraction has 1441 states and 2402 transitions. [2018-10-27 03:25:37,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:25:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2402 transitions. [2018-10-27 03:25:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-27 03:25:37,407 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:25:37,408 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:25:37,412 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:25:37,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:25:37,413 INFO L82 PathProgramCache]: Analyzing trace with hash -916712231, now seen corresponding path program 1 times [2018-10-27 03:25:37,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:25:37,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:25:37,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:25:37,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:25:37,415 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:25:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:25:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 03:25:37,685 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:25:37,685 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:25:37,686 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-10-27 03:25:37,689 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], [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], [647], [649], [652], [660], [668], [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], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 03:25:37,773 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:25:37,773 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:25:39,969 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:25:40,061 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:25:40,062 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:25:40,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:25:40,086 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:25:41,583 INFO L227 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 78.8% of their original sizes. [2018-10-27 03:25:41,583 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:25:41,863 INFO L415 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2018-10-27 03:25:41,864 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:25:41,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:25:41,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-10-27 03:25:41,865 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:25:41,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:25:41,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:25:41,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:25:41,867 INFO L87 Difference]: Start difference. First operand 1441 states and 2402 transitions. Second operand 7 states. [2018-10-27 03:26:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:26:38,665 INFO L93 Difference]: Finished difference Result 3216 states and 5295 transitions. [2018-10-27 03:26:38,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:26:38,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2018-10-27 03:26:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:26:38,676 INFO L225 Difference]: With dead ends: 3216 [2018-10-27 03:26:38,676 INFO L226 Difference]: Without dead ends: 1781 [2018-10-27 03:26:38,682 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 172 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:26:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2018-10-27 03:26:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2018-10-27 03:26:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2018-10-27 03:26:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2747 transitions. [2018-10-27 03:26:38,735 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2747 transitions. Word has length 172 [2018-10-27 03:26:38,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:26:38,736 INFO L481 AbstractCegarLoop]: Abstraction has 1779 states and 2747 transitions. [2018-10-27 03:26:38,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:26:38,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2747 transitions. [2018-10-27 03:26:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-10-27 03:26:38,740 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:26:38,740 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:26:38,740 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:26:38,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:26:38,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2071363300, now seen corresponding path program 1 times [2018-10-27 03:26:38,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:26:38,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:26:38,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:26:38,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:26:38,742 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:26:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:26:39,043 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 03:26:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 195 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:26:39,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:26:39,155 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:26:39,155 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-10-27 03:26:39,156 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], [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], [647], [649], [652], [660], [668], [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], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 03:26:39,164 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:26:39,165 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:26:40,336 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:26:46,694 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:26:46,695 INFO L272 AbstractInterpreter]: Visited 109 different actions 318 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 03:26:46,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:26:46,702 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:26:49,017 INFO L227 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 78.28% of their original sizes. [2018-10-27 03:26:49,017 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:26:57,054 INFO L415 sIntCurrentIteration]: We unified 263 AI predicates to 263 [2018-10-27 03:26:57,055 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:26:57,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:26:57,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-10-27 03:26:57,055 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:26:57,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 03:26:57,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 03:26:57,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-10-27 03:26:57,058 INFO L87 Difference]: Start difference. First operand 1779 states and 2747 transitions. Second operand 17 states. Received shutdown request... [2018-10-27 03:29:16,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-27 03:29:16,274 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:29:16,280 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:29:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:29:16 BoogieIcfgContainer [2018-10-27 03:29:16,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:29:16,281 INFO L168 Benchmark]: Toolchain (without parser) took 237895.74 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.4 GB). Peak memory consumption was 286.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:29:16,283 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:29:16,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1108.71 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:29:16,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 364.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:29:16,285 INFO L168 Benchmark]: Boogie Preprocessor took 192.87 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:29:16,290 INFO L168 Benchmark]: RCFGBuilder took 6541.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 266.9 MB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. [2018-10-27 03:29:16,291 INFO L168 Benchmark]: TraceAbstraction took 229682.70 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 2.0 GB in the beginning and 3.9 GB in the end (delta: -1.9 GB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:29:16,296 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1108.71 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 364.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.87 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6541.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 266.9 MB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229682.70 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 2.0 GB in the beginning and 3.9 GB in the end (delta: -1.9 GB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 199]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 199). Cancelled while BasicCegarLoop was constructing difference of abstraction (1779states) and FLOYD_HOARE automaton (currently 22 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (788 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 229.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 205.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 715 SDtfs, 5890 SDslu, 490 SDs, 0 SdLazy, 5480 SolverSat, 1456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 460 GetRequests, 418 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1779occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9953499632672143 AbsIntWeakeningRatio, 0.10599078341013825 AbsIntAvgWeakeningVarsNumRemoved, 552.1635944700461 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 646 ConstructedInterpolants, 0 QuantifiedInterpolants, 490578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 263/348 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown