java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 01:23:36,198 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 01:23:36,201 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 01:23:36,214 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 01:23:36,215 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 01:23:36,216 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 01:23:36,217 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 01:23:36,219 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 01:23:36,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 01:23:36,222 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 01:23:36,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 01:23:36,223 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 01:23:36,224 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 01:23:36,225 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 01:23:36,230 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 01:23:36,231 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 01:23:36,231 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 01:23:36,233 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 01:23:36,235 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 01:23:36,236 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 01:23:36,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 01:23:36,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 01:23:36,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 01:23:36,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 01:23:36,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 01:23:36,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 01:23:36,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 01:23:36,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 01:23:36,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 01:23:36,248 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 01:23:36,248 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 01:23:36,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 01:23:36,250 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 01:23:36,250 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 01:23:36,251 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 01:23:36,252 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 01:23:36,252 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 01:23:36,283 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 01:23:36,283 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 01:23:36,284 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 01:23:36,284 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 01:23:36,284 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 01:23:36,284 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 01:23:36,285 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 01:23:36,286 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 01:23:36,286 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 01:23:36,286 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 01:23:36,286 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 01:23:36,286 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 01:23:36,287 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 01:23:36,287 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 01:23:36,287 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 01:23:36,287 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 01:23:36,288 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 01:23:36,290 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 01:23:36,290 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 01:23:36,291 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 01:23:36,291 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 01:23:36,291 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 01:23:36,291 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 01:23:36,291 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 01:23:36,292 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:23:36,292 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 01:23:36,292 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 01:23:36,292 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 01:23:36,292 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 01:23:36,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 01:23:36,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 01:23:36,297 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 01:23:36,297 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 01:23:36,298 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 01:23:36,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 01:23:36,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 01:23:36,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 01:23:36,399 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 01:23:36,399 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 01:23:36,400 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label03_true-unreach-call.c [2018-11-07 01:23:36,467 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7eef8a5/df03145ec9864f32a9c6ce95b7c0c999/FLAG91d417027 [2018-11-07 01:23:37,118 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 01:23:37,119 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label03_true-unreach-call.c [2018-11-07 01:23:37,141 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7eef8a5/df03145ec9864f32a9c6ce95b7c0c999/FLAG91d417027 [2018-11-07 01:23:37,158 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7eef8a5/df03145ec9864f32a9c6ce95b7c0c999 [2018-11-07 01:23:37,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 01:23:37,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 01:23:37,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 01:23:37,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 01:23:37,177 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 01:23:37,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:37" (1/1) ... [2018-11-07 01:23:37,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301511e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:37, skipping insertion in model container [2018-11-07 01:23:37,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:37" (1/1) ... [2018-11-07 01:23:37,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 01:23:37,278 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 01:23:37,992 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:23:38,000 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 01:23:38,366 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:23:38,391 INFO L193 MainTranslator]: Completed translation [2018-11-07 01:23:38,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38 WrapperNode [2018-11-07 01:23:38,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 01:23:38,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 01:23:38,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 01:23:38,394 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 01:23:38,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 01:23:38,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 01:23:38,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 01:23:38,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 01:23:38,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... [2018-11-07 01:23:38,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 01:23:38,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 01:23:38,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 01:23:38,800 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 01:23:38,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 01:23:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 01:23:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 01:23:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 01:23:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 01:23:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 01:23:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 01:23:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 01:23:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 01:23:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 01:23:43,568 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 01:23:43,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:23:43 BoogieIcfgContainer [2018-11-07 01:23:43,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 01:23:43,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 01:23:43,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 01:23:43,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 01:23:43,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:23:37" (1/3) ... [2018-11-07 01:23:43,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eb7337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:23:43, skipping insertion in model container [2018-11-07 01:23:43,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38" (2/3) ... [2018-11-07 01:23:43,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eb7337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:23:43, skipping insertion in model container [2018-11-07 01:23:43,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:23:43" (3/3) ... [2018-11-07 01:23:43,579 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label03_true-unreach-call.c [2018-11-07 01:23:43,590 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 01:23:43,601 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 01:23:43,621 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 01:23:43,667 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 01:23:43,667 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 01:23:43,667 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 01:23:43,668 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 01:23:43,668 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 01:23:43,668 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 01:23:43,668 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 01:23:43,668 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 01:23:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 01:23:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-07 01:23:43,723 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:23:43,726 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] [2018-11-07 01:23:43,729 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:23:43,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:23:43,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1304680716, now seen corresponding path program 1 times [2018-11-07 01:23:43,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:23:43,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:43,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:23:43,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:43,800 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:23:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:23:44,649 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:23:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:23:44,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:23:44,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:23:44,818 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:23:44,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:23:44,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:23:44,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:23:44,844 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-11-07 01:23:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:23:47,443 INFO L93 Difference]: Finished difference Result 845 states and 1487 transitions. [2018-11-07 01:23:47,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:23:47,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2018-11-07 01:23:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:23:47,467 INFO L225 Difference]: With dead ends: 845 [2018-11-07 01:23:47,467 INFO L226 Difference]: Without dead ends: 531 [2018-11-07 01:23:47,475 INFO L604 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 [2018-11-07 01:23:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2018-11-07 01:23:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 530. [2018-11-07 01:23:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2018-11-07 01:23:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 869 transitions. [2018-11-07 01:23:47,612 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 869 transitions. Word has length 171 [2018-11-07 01:23:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:23:47,614 INFO L480 AbstractCegarLoop]: Abstraction has 530 states and 869 transitions. [2018-11-07 01:23:47,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:23:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 869 transitions. [2018-11-07 01:23:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-07 01:23:47,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:23:47,625 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 01:23:47,625 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:23:47,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:23:47,626 INFO L82 PathProgramCache]: Analyzing trace with hash 211800901, now seen corresponding path program 1 times [2018-11-07 01:23:47,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:23:47,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:47,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:23:47,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:47,628 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:23:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:23:47,938 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-07 01:23:48,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:23:48,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:23:48,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:23:48,024 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:23:48,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:23:48,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:23:48,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:23:48,028 INFO L87 Difference]: Start difference. First operand 530 states and 869 transitions. Second operand 6 states. [2018-11-07 01:23:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:23:52,213 INFO L93 Difference]: Finished difference Result 1599 states and 2688 transitions. [2018-11-07 01:23:52,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 01:23:52,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-11-07 01:23:52,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:23:52,237 INFO L225 Difference]: With dead ends: 1599 [2018-11-07 01:23:52,237 INFO L226 Difference]: Without dead ends: 1075 [2018-11-07 01:23:52,243 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 01:23:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2018-11-07 01:23:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1034. [2018-11-07 01:23:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-11-07 01:23:52,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1689 transitions. [2018-11-07 01:23:52,313 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1689 transitions. Word has length 181 [2018-11-07 01:23:52,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:23:52,313 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1689 transitions. [2018-11-07 01:23:52,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:23:52,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1689 transitions. [2018-11-07 01:23:52,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-11-07 01:23:52,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:23:52,319 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] [2018-11-07 01:23:52,319 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:23:52,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:23:52,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1978156296, now seen corresponding path program 1 times [2018-11-07 01:23:52,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:23:52,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:52,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:23:52,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:52,321 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:23:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:23:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:23:52,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:23:52,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:23:52,650 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:23:52,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:23:52,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:23:52,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:23:52,655 INFO L87 Difference]: Start difference. First operand 1034 states and 1689 transitions. Second operand 3 states. [2018-11-07 01:23:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:23:55,083 INFO L93 Difference]: Finished difference Result 2915 states and 4931 transitions. [2018-11-07 01:23:55,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:23:55,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2018-11-07 01:23:55,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:23:55,100 INFO L225 Difference]: With dead ends: 2915 [2018-11-07 01:23:55,100 INFO L226 Difference]: Without dead ends: 1887 [2018-11-07 01:23:55,106 INFO L604 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 [2018-11-07 01:23:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2018-11-07 01:23:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1880. [2018-11-07 01:23:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1880 states. [2018-11-07 01:23:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2986 transitions. [2018-11-07 01:23:55,185 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2986 transitions. Word has length 184 [2018-11-07 01:23:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:23:55,185 INFO L480 AbstractCegarLoop]: Abstraction has 1880 states and 2986 transitions. [2018-11-07 01:23:55,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:23:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2986 transitions. [2018-11-07 01:23:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-11-07 01:23:55,193 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:23:55,194 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 01:23:55,194 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:23:55,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:23:55,194 INFO L82 PathProgramCache]: Analyzing trace with hash 88085177, now seen corresponding path program 1 times [2018-11-07 01:23:55,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:23:55,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:55,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:23:55,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:55,196 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:23:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:23:55,457 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:23:55,516 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:23:55,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:23:55,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:23:55,517 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:23:55,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:23:55,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:23:55,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:23:55,519 INFO L87 Difference]: Start difference. First operand 1880 states and 2986 transitions. Second operand 6 states. [2018-11-07 01:23:57,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:23:57,758 INFO L93 Difference]: Finished difference Result 6020 states and 10195 transitions. [2018-11-07 01:23:57,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:23:57,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2018-11-07 01:23:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:23:57,789 INFO L225 Difference]: With dead ends: 6020 [2018-11-07 01:23:57,789 INFO L226 Difference]: Without dead ends: 4146 [2018-11-07 01:23:57,801 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 01:23:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4146 states. [2018-11-07 01:23:57,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4146 to 4038. [2018-11-07 01:23:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4038 states. [2018-11-07 01:23:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4038 states to 4038 states and 6154 transitions. [2018-11-07 01:23:57,939 INFO L78 Accepts]: Start accepts. Automaton has 4038 states and 6154 transitions. Word has length 191 [2018-11-07 01:23:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:23:57,939 INFO L480 AbstractCegarLoop]: Abstraction has 4038 states and 6154 transitions. [2018-11-07 01:23:57,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:23:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4038 states and 6154 transitions. [2018-11-07 01:23:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-11-07 01:23:57,952 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:23:57,953 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 01:23:57,953 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:23:57,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:23:57,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1314408798, now seen corresponding path program 1 times [2018-11-07 01:23:57,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:23:57,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:57,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:23:57,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:23:57,955 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:23:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:23:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:23:58,226 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:23:58,226 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:23:58,227 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-11-07 01:23:58,230 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [73], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [829], [831], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 01:23:58,333 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:23:58,333 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-11-07 01:28:12,405 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 01:28:12,406 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 01:28:12,407 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 01:28:12,407 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:28:12,407 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 01:28:12,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:28:12,418 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 01:28:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:28:12,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 01:28:12,656 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 01:28:12,858 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 01:28:12,858 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:28:12,863 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:28:12,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:28:12 BoogieIcfgContainer [2018-11-07 01:28:12,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:28:12,865 INFO L168 Benchmark]: Toolchain (without parser) took 275694.45 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -257.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 01:28:12,866 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-07 01:28:12,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1220.62 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-11-07 01:28:12,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 237.25 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -870.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2018-11-07 01:28:12,868 INFO L168 Benchmark]: Boogie Preprocessor took 168.12 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:28:12,868 INFO L168 Benchmark]: RCFGBuilder took 4770.65 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 250.6 MB). Peak memory consumption was 250.6 MB. Max. memory is 7.1 GB. [2018-11-07 01:28:12,869 INFO L168 Benchmark]: TraceAbstraction took 269292.72 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 600.8 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 267.2 MB). Peak memory consumption was 868.0 MB. Max. memory is 7.1 GB. [2018-11-07 01:28:12,877 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1220.62 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 237.25 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -870.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.12 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4770.65 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 250.6 MB). Peak memory consumption was 250.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269292.72 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 600.8 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 267.2 MB). Peak memory consumption was 868.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1527]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1527). Cancelled while BasicCegarLoop was analyzing trace of length 210 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, 269.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 11.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1035 SDtfs, 2542 SDslu, 614 SDs, 0 SdLazy, 4248 SolverSat, 776 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4038occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 254.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 727 NumberOfCodeBlocks, 727 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 723 ConstructedInterpolants, 0 QuantifiedInterpolants, 307581 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 34/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown