java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:57:52,760 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:57:52,762 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:57:52,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:57:52,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:57:52,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:57:52,781 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:57:52,782 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:57:52,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:57:52,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:57:52,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:57:52,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:57:52,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:57:52,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:57:52,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:57:52,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:57:52,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:57:52,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:57:52,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:57:52,796 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:57:52,797 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:57:52,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:57:52,801 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:57:52,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:57:52,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:57:52,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:57:52,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:57:52,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:57:52,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:57:52,806 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:57:52,806 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:57:52,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:57:52,807 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:57:52,807 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:57:52,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:57:52,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:57:52,809 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 00:57:52,825 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:57:52,826 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:57:52,826 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:57:52,827 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:57:52,827 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:57:52,827 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:57:52,827 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:57:52,827 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:57:52,828 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:57:52,828 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:57:52,828 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:57:52,828 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:57:52,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:57:52,829 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:57:52,829 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:57:52,829 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:57:52,829 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:57:52,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:57:52,830 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:57:52,830 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:57:52,830 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:57:52,830 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:57:52,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:57:52,831 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:57:52,831 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:57:52,831 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:57:52,831 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:57:52,832 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:57:52,832 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:57:52,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:57:52,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:57:52,832 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:57:52,833 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:57:52,833 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:57:52,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:57:52,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:57:52,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:57:52,899 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:57:52,900 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:57:52,900 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55_true-unreach-call_false-termination.c [2018-10-27 00:57:52,958 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5cae5ebc6/e30e37b013c549b5873dcbbd862ef03b/FLAG5288795dc [2018-10-27 00:57:53,595 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:57:53,597 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55_true-unreach-call_false-termination.c [2018-10-27 00:57:53,612 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5cae5ebc6/e30e37b013c549b5873dcbbd862ef03b/FLAG5288795dc [2018-10-27 00:57:53,627 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5cae5ebc6/e30e37b013c549b5873dcbbd862ef03b [2018-10-27 00:57:53,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:57:53,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:57:53,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:57:53,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:57:53,645 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:57:53,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:57:53" (1/1) ... [2018-10-27 00:57:53,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9fe48fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:53, skipping insertion in model container [2018-10-27 00:57:53,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:57:53" (1/1) ... [2018-10-27 00:57:53,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:57:53,744 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:57:54,275 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:57:54,282 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:57:54,411 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:57:54,432 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:57:54,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54 WrapperNode [2018-10-27 00:57:54,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:57:54,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:57:54,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:57:54,434 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:57:54,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:57:54,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:57:54,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:57:54,626 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:57:54,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... [2018-10-27 00:57:54,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:57:54,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:57:54,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:57:54,726 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:57:54,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:57:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:57:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:57:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:57:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:57:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:57:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:57:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:57:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:57:58,380 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:57:58,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:57:58 BoogieIcfgContainer [2018-10-27 00:57:58,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:57:58,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:57:58,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:57:58,386 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:57:58,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:57:53" (1/3) ... [2018-10-27 00:57:58,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5654a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:57:58, skipping insertion in model container [2018-10-27 00:57:58,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:54" (2/3) ... [2018-10-27 00:57:58,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5654a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:57:58, skipping insertion in model container [2018-10-27 00:57:58,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:57:58" (3/3) ... [2018-10-27 00:57:58,391 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label55_true-unreach-call_false-termination.c [2018-10-27 00:57:58,399 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:57:58,407 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:57:58,424 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:57:58,463 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:57:58,464 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:57:58,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:57:58,464 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:57:58,464 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:57:58,464 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:57:58,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:57:58,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:57:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-27 00:57:58,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-27 00:57:58,511 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:57:58,512 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] [2018-10-27 00:57:58,516 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:57:58,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:57:58,522 INFO L82 PathProgramCache]: Analyzing trace with hash -301102600, now seen corresponding path program 1 times [2018-10-27 00:57:58,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:57:58,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:57:58,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:57:58,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:57:58,580 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:57:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:57:59,163 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:57:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:57:59,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:57:59,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:57:59,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:57:59,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:57:59,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:57:59,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:57:59,261 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-27 00:58:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:58:01,103 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-10-27 00:58:01,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:58:01,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2018-10-27 00:58:01,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:58:01,125 INFO L225 Difference]: With dead ends: 627 [2018-10-27 00:58:01,125 INFO L226 Difference]: Without dead ends: 388 [2018-10-27 00:58:01,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:58:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-10-27 00:58:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-10-27 00:58:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-10-27 00:58:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-10-27 00:58:01,216 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 112 [2018-10-27 00:58:01,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:58:01,218 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-10-27 00:58:01,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:58:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-10-27 00:58:01,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-27 00:58:01,225 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:58:01,225 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] [2018-10-27 00:58:01,225 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:58:01,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:01,226 INFO L82 PathProgramCache]: Analyzing trace with hash 178328325, now seen corresponding path program 1 times [2018-10-27 00:58:01,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:58:01,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:01,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:58:01,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:01,228 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:58:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:01,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:58:01,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:58:01,628 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:58:01,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:58:01,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:58:01,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:58:01,631 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 5 states. [2018-10-27 00:58:03,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:58:03,878 INFO L93 Difference]: Finished difference Result 905 states and 1519 transitions. [2018-10-27 00:58:03,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:58:03,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-10-27 00:58:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:58:03,884 INFO L225 Difference]: With dead ends: 905 [2018-10-27 00:58:03,884 INFO L226 Difference]: Without dead ends: 382 [2018-10-27 00:58:03,890 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:58:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-27 00:58:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-27 00:58:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-27 00:58:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 613 transitions. [2018-10-27 00:58:03,917 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 613 transitions. Word has length 121 [2018-10-27 00:58:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:58:03,917 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 613 transitions. [2018-10-27 00:58:03,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:58:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 613 transitions. [2018-10-27 00:58:03,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 00:58:03,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:58:03,922 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:58:03,922 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:58:03,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:03,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1372472321, now seen corresponding path program 1 times [2018-10-27 00:58:03,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:58:03,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:03,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:58:03,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:03,924 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:58:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:04,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:04,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:58:04,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:58:04,338 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:58:04,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:58:04,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:58:04,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:58:04,340 INFO L87 Difference]: Start difference. First operand 382 states and 613 transitions. Second operand 6 states. [2018-10-27 00:58:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:58:07,561 INFO L93 Difference]: Finished difference Result 1241 states and 2101 transitions. [2018-10-27 00:58:07,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:58:07,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-10-27 00:58:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:58:07,577 INFO L225 Difference]: With dead ends: 1241 [2018-10-27 00:58:07,577 INFO L226 Difference]: Without dead ends: 865 [2018-10-27 00:58:07,585 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:58:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2018-10-27 00:58:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 818. [2018-10-27 00:58:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2018-10-27 00:58:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1267 transitions. [2018-10-27 00:58:07,687 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1267 transitions. Word has length 123 [2018-10-27 00:58:07,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:58:07,688 INFO L481 AbstractCegarLoop]: Abstraction has 818 states and 1267 transitions. [2018-10-27 00:58:07,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:58:07,688 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1267 transitions. [2018-10-27 00:58:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-27 00:58:07,694 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:58:07,694 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:58:07,694 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:58:07,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:07,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1586168017, now seen corresponding path program 1 times [2018-10-27 00:58:07,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:58:07,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:07,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:58:07,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:07,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:58:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:08,037 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:58:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:08,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:58:08,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:58:08,059 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:58:08,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:58:08,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:58:08,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:58:08,060 INFO L87 Difference]: Start difference. First operand 818 states and 1267 transitions. Second operand 3 states. [2018-10-27 00:58:10,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:58:10,231 INFO L93 Difference]: Finished difference Result 2297 states and 3692 transitions. [2018-10-27 00:58:10,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:58:10,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2018-10-27 00:58:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:58:10,247 INFO L225 Difference]: With dead ends: 2297 [2018-10-27 00:58:10,247 INFO L226 Difference]: Without dead ends: 1485 [2018-10-27 00:58:10,253 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:58:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2018-10-27 00:58:10,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1478. [2018-10-27 00:58:10,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1478 states. [2018-10-27 00:58:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2327 transitions. [2018-10-27 00:58:10,326 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2327 transitions. Word has length 126 [2018-10-27 00:58:10,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:58:10,326 INFO L481 AbstractCegarLoop]: Abstraction has 1478 states and 2327 transitions. [2018-10-27 00:58:10,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:58:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2327 transitions. [2018-10-27 00:58:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-27 00:58:10,333 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:58:10,333 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:58:10,333 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:58:10,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:10,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1132847554, now seen corresponding path program 1 times [2018-10-27 00:58:10,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:58:10,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:10,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:58:10,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:10,337 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:58:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:10,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:58:10,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:58:10,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:58:10,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:58:10,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:58:10,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:58:10,697 INFO L87 Difference]: Start difference. First operand 1478 states and 2327 transitions. Second operand 5 states. [2018-10-27 00:58:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:58:11,740 INFO L93 Difference]: Finished difference Result 3050 states and 4851 transitions. [2018-10-27 00:58:11,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:58:11,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-10-27 00:58:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:58:11,764 INFO L225 Difference]: With dead ends: 3050 [2018-10-27 00:58:11,765 INFO L226 Difference]: Without dead ends: 1430 [2018-10-27 00:58:11,773 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:58:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2018-10-27 00:58:11,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1430. [2018-10-27 00:58:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2018-10-27 00:58:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2227 transitions. [2018-10-27 00:58:11,826 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2227 transitions. Word has length 137 [2018-10-27 00:58:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:58:11,827 INFO L481 AbstractCegarLoop]: Abstraction has 1430 states and 2227 transitions. [2018-10-27 00:58:11,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:58:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2227 transitions. [2018-10-27 00:58:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-27 00:58:11,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:58:11,835 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 00:58:11,835 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:58:11,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:11,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2082625773, now seen corresponding path program 1 times [2018-10-27 00:58:11,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:58:11,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:11,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:58:11,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:11,838 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:58:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 46 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:12,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:58:12,133 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:58:12,134 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-10-27 00:58:12,136 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-27 00:58:12,232 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:58:12,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:59:04,036 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:59:04,038 INFO L272 AbstractInterpreter]: Visited 116 different actions 340 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-10-27 00:59:04,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:59:04,052 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:59:10,805 INFO L227 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 84.06% of their original sizes. [2018-10-27 00:59:10,805 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-27 01:02:17,788 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 01:02:17,794 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 01:02:17,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:02:17 BoogieIcfgContainer [2018-10-27 01:02:17,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 01:02:17,796 INFO L168 Benchmark]: Toolchain (without parser) took 264156.99 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 753.5 MB. Max. memory is 7.1 GB. [2018-10-27 01:02:17,798 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. [2018-10-27 01:02:17,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-27 01:02:17,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.21 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -801.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-10-27 01:02:17,800 INFO L168 Benchmark]: Boogie Preprocessor took 99.32 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. [2018-10-27 01:02:17,801 INFO L168 Benchmark]: RCFGBuilder took 3656.25 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.0 MB). Peak memory consumption was 118.0 MB. Max. memory is 7.1 GB. [2018-10-27 01:02:17,802 INFO L168 Benchmark]: TraceAbstraction took 259412.17 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -682.9 MB). Peak memory consumption was 687.1 MB. Max. memory is 7.1 GB. [2018-10-27 01:02:17,807 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 792.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 192.21 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -801.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.32 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 3656.25 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.0 MB). Peak memory consumption was 118.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259412.17 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -682.9 MB). Peak memory consumption was 687.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 487]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 487). Cancelled while BasicCegarLoop was analyzing trace of length 164 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 17 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 259.3s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 10.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 674 SDtfs, 2319 SDslu, 496 SDs, 0 SdLazy, 3496 SolverSat, 763 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1478occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 51.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9942837574416525 AbsIntWeakeningRatio, 0.2037037037037037 AbsIntAvgWeakeningVarsNumRemoved, 755.179012345679 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 59 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 619 NumberOfCodeBlocks, 619 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 614 ConstructedInterpolants, 0 QuantifiedInterpolants, 563879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 47/47 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown