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/Problem03_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:35:14,225 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:35:14,228 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:35:14,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:35:14,242 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:35:14,243 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:35:14,245 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:35:14,247 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:35:14,248 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:35:14,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:35:14,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:35:14,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:35:14,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:35:14,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:35:14,253 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:35:14,254 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:35:14,255 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:35:14,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:35:14,259 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:35:14,261 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:35:14,262 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:35:14,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:35:14,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:35:14,266 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:35:14,266 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:35:14,267 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:35:14,268 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:35:14,269 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:35:14,270 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:35:14,274 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:35:14,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:35:14,275 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:35:14,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:35:14,276 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:35:14,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:35:14,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:35:14,279 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 19:35:14,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:35:14,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:35:14,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:35:14,295 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:35:14,296 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:35:14,296 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:35:14,296 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:35:14,296 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:35:14,296 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:35:14,297 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:35:14,297 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:35:14,297 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:35:14,298 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:35:14,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:35:14,298 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:35:14,298 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:35:14,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:35:14,299 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:35:14,299 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:35:14,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:35:14,299 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:35:14,299 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:35:14,300 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:35:14,300 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:35:14,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:35:14,300 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:35:14,300 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:35:14,301 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:35:14,301 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:35:14,301 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:35:14,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:35:14,301 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:35:14,302 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:35:14,302 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:35:14,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:35:14,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:35:14,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:35:14,371 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:35:14,371 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:35:14,372 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-10-24 19:35:14,445 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a7a9cc2d7/6be6715c0f19483a8dc9c37284ef8485/FLAG510b3f361 [2018-10-24 19:35:15,203 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:35:15,205 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-10-24 19:35:15,228 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a7a9cc2d7/6be6715c0f19483a8dc9c37284ef8485/FLAG510b3f361 [2018-10-24 19:35:15,249 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a7a9cc2d7/6be6715c0f19483a8dc9c37284ef8485 [2018-10-24 19:35:15,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:35:15,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:35:15,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:35:15,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:35:15,275 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:35:15,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:15" (1/1) ... [2018-10-24 19:35:15,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291070e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:15, skipping insertion in model container [2018-10-24 19:35:15,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:15" (1/1) ... [2018-10-24 19:35:15,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:35:15,394 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:35:16,135 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:35:16,140 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:35:16,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:35:16,421 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:35:16,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16 WrapperNode [2018-10-24 19:35:16,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:35:16,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:35:16,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:35:16,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:35:16,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:35:16,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:35:16,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:35:16,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:35:16,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (1/1) ... [2018-10-24 19:35:16,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:35:16,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:35:16,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:35:16,861 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:35:16,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (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 19:35:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:35:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:35:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:35:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:35:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:35:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:35:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:35:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:35:21,580 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:35:21,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:21 BoogieIcfgContainer [2018-10-24 19:35:21,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:35:21,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:35:21,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:35:21,587 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:35:21,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:35:15" (1/3) ... [2018-10-24 19:35:21,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcbdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:21, skipping insertion in model container [2018-10-24 19:35:21,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:16" (2/3) ... [2018-10-24 19:35:21,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcbdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:21, skipping insertion in model container [2018-10-24 19:35:21,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:21" (3/3) ... [2018-10-24 19:35:21,591 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label00_true-unreach-call.c [2018-10-24 19:35:21,602 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:35:21,612 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:35:21,632 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:35:21,673 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:35:21,674 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:35:21,674 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:35:21,674 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:35:21,674 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:35:21,674 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:35:21,674 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:35:21,675 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:35:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-24 19:35:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-24 19:35:21,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:21,727 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:35:21,730 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:21,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:21,738 INFO L82 PathProgramCache]: Analyzing trace with hash 612696124, now seen corresponding path program 1 times [2018-10-24 19:35:21,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:21,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:21,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:21,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:21,804 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:22,664 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-10-24 19:35:22,971 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 19:35:22,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:35:22,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:35:22,974 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:22,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:35:22,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:35:22,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:35:22,996 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-24 19:35:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:35:26,258 INFO L93 Difference]: Finished difference Result 1085 states and 1949 transitions. [2018-10-24 19:35:26,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:35:26,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2018-10-24 19:35:26,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:35:26,288 INFO L225 Difference]: With dead ends: 1085 [2018-10-24 19:35:26,288 INFO L226 Difference]: Without dead ends: 767 [2018-10-24 19:35:26,296 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:35:26,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2018-10-24 19:35:26,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 523. [2018-10-24 19:35:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-10-24 19:35:26,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 922 transitions. [2018-10-24 19:35:26,398 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 922 transitions. Word has length 199 [2018-10-24 19:35:26,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:35:26,399 INFO L481 AbstractCegarLoop]: Abstraction has 523 states and 922 transitions. [2018-10-24 19:35:26,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:35:26,400 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 922 transitions. [2018-10-24 19:35:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-24 19:35:26,408 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:26,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:26,412 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:26,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:26,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1141200915, now seen corresponding path program 1 times [2018-10-24 19:35:26,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:26,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:26,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:26,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:26,417 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:26,709 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 19:35:26,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:35:26,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:35:26,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:26,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:35:26,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:35:26,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:35:26,713 INFO L87 Difference]: Start difference. First operand 523 states and 922 transitions. Second operand 5 states. [2018-10-24 19:35:30,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:35:30,472 INFO L93 Difference]: Finished difference Result 1613 states and 2944 transitions. [2018-10-24 19:35:30,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:35:30,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-10-24 19:35:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:35:30,490 INFO L225 Difference]: With dead ends: 1613 [2018-10-24 19:35:30,490 INFO L226 Difference]: Without dead ends: 1096 [2018-10-24 19:35:30,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:35:30,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-10-24 19:35:30,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1073. [2018-10-24 19:35:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2018-10-24 19:35:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1774 transitions. [2018-10-24 19:35:30,592 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1774 transitions. Word has length 210 [2018-10-24 19:35:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:35:30,592 INFO L481 AbstractCegarLoop]: Abstraction has 1073 states and 1774 transitions. [2018-10-24 19:35:30,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:35:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1774 transitions. [2018-10-24 19:35:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 19:35:30,604 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:30,604 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:35:30,605 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:30,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:30,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2110773816, now seen corresponding path program 1 times [2018-10-24 19:35:30,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:30,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:30,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:30,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:30,607 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:35:30,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:35:30,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:35:30,941 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:30,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:35:30,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:35:30,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:35:30,943 INFO L87 Difference]: Start difference. First operand 1073 states and 1774 transitions. Second operand 3 states. [2018-10-24 19:35:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:35:32,702 INFO L93 Difference]: Finished difference Result 3069 states and 5224 transitions. [2018-10-24 19:35:32,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:35:32,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-10-24 19:35:32,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:35:32,730 INFO L225 Difference]: With dead ends: 3069 [2018-10-24 19:35:32,731 INFO L226 Difference]: Without dead ends: 2002 [2018-10-24 19:35:32,741 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:35:32,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2018-10-24 19:35:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1984. [2018-10-24 19:35:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-10-24 19:35:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 3215 transitions. [2018-10-24 19:35:32,839 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 3215 transitions. Word has length 212 [2018-10-24 19:35:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:35:32,840 INFO L481 AbstractCegarLoop]: Abstraction has 1984 states and 3215 transitions. [2018-10-24 19:35:32,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:35:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 3215 transitions. [2018-10-24 19:35:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-24 19:35:32,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:35:32,854 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:32,854 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:35:32,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:35:32,855 INFO L82 PathProgramCache]: Analyzing trace with hash -639515856, now seen corresponding path program 1 times [2018-10-24 19:35:32,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:35:32,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:32,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:35:32,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:35:32,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:35:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:35:33,135 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-24 19:35:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:35:33,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:35:33,310 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:35:33,311 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-10-24 19:35:33,314 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [151], [156], [158], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1053], [1055], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-24 19:35:33,409 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:35:33,410 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 19:39:52,761 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 19:39:52,762 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 19:39:52,764 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 19:39:52,764 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:39:52,764 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:39:52,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:39:52,777 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 19:39:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:39:53,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 19:39:53,068 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 19:39:53,270 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:39:53,271 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:39:53,276 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:39:53,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:39:53 BoogieIcfgContainer [2018-10-24 19:39:53,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:39:53,278 INFO L168 Benchmark]: Toolchain (without parser) took 278014.65 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -247.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 19:39:53,279 INFO L168 Benchmark]: CDTParser took 0.27 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 19:39:53,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1156.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:39:53,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 302.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.1 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:39:53,281 INFO L168 Benchmark]: Boogie Preprocessor took 134.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:39:53,282 INFO L168 Benchmark]: RCFGBuilder took 4721.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 260.4 MB). Peak memory consumption was 260.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:39:53,283 INFO L168 Benchmark]: TraceAbstraction took 271694.02 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 939.5 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 257.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 19:39:53,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1156.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 302.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.1 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4721.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 260.4 MB). Peak memory consumption was 260.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 271694.02 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 939.5 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 257.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1611]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1611). Cancelled while BasicCegarLoop was analyzing trace of length 254 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 271.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 8.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 803 SDtfs, 1647 SDslu, 345 SDs, 0 SdLazy, 3216 SolverSat, 747 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1984occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 259.4s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 285 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 517784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown