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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 11:57:05,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 11:57:05,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 11:57:05,765 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 11:57:05,766 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 11:57:05,767 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 11:57:05,768 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 11:57:05,770 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 11:57:05,771 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 11:57:05,772 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 11:57:05,773 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 11:57:05,773 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 11:57:05,774 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 11:57:05,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 11:57:05,776 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 11:57:05,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 11:57:05,778 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 11:57:05,780 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 11:57:05,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 11:57:05,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 11:57:05,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 11:57:05,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 11:57:05,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 11:57:05,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 11:57:05,789 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 11:57:05,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 11:57:05,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 11:57:05,791 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 11:57:05,792 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 11:57:05,793 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 11:57:05,793 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 11:57:05,794 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 11:57:05,794 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 11:57:05,794 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 11:57:05,795 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 11:57:05,796 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 11:57:05,796 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 11:57:05,812 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 11:57:05,812 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 11:57:05,813 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 11:57:05,813 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 11:57:05,813 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 11:57:05,813 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 11:57:05,814 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 11:57:05,814 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 11:57:05,814 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 11:57:05,814 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 11:57:05,814 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 11:57:05,815 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 11:57:05,815 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 11:57:05,815 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 11:57:05,816 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 11:57:05,816 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 11:57:05,816 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 11:57:05,816 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 11:57:05,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 11:57:05,817 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 11:57:05,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 11:57:05,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 11:57:05,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 11:57:05,817 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 11:57:05,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:57:05,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 11:57:05,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 11:57:05,818 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 11:57:05,819 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 11:57:05,819 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 11:57:05,819 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 11:57:05,819 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 11:57:05,819 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 11:57:05,819 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 11:57:05,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 11:57:05,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 11:57:05,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 11:57:05,901 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 11:57:05,901 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 11:57:05,902 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-27 11:57:05,964 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/92d0520af/19d8fc506c374a55b4e32da03c9acf74/FLAGca2de5459 [2018-10-27 11:57:06,675 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 11:57:06,676 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-27 11:57:06,698 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/92d0520af/19d8fc506c374a55b4e32da03c9acf74/FLAGca2de5459 [2018-10-27 11:57:06,714 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/92d0520af/19d8fc506c374a55b4e32da03c9acf74 [2018-10-27 11:57:06,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 11:57:06,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 11:57:06,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 11:57:06,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 11:57:06,732 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 11:57:06,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:57:06" (1/1) ... [2018-10-27 11:57:06,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:06, skipping insertion in model container [2018-10-27 11:57:06,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:57:06" (1/1) ... [2018-10-27 11:57:06,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 11:57:06,856 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 11:57:07,832 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:57:07,837 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 11:57:08,268 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:57:08,291 INFO L193 MainTranslator]: Completed translation [2018-10-27 11:57:08,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08 WrapperNode [2018-10-27 11:57:08,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 11:57:08,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 11:57:08,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 11:57:08,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 11:57:08,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 11:57:08,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 11:57:08,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 11:57:08,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 11:57:08,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:08,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:09,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (1/1) ... [2018-10-27 11:57:09,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 11:57:09,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 11:57:09,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 11:57:09,074 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 11:57:09,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (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 11:57:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 11:57:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 11:57:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 11:57:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 11:57:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 11:57:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 11:57:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 11:57:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 11:57:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 11:57:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 11:57:22,630 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 11:57:22,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:57:22 BoogieIcfgContainer [2018-10-27 11:57:22,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 11:57:22,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 11:57:22,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 11:57:22,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 11:57:22,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:57:06" (1/3) ... [2018-10-27 11:57:22,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349e6321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:57:22, skipping insertion in model container [2018-10-27 11:57:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:08" (2/3) ... [2018-10-27 11:57:22,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349e6321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:57:22, skipping insertion in model container [2018-10-27 11:57:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:57:22" (3/3) ... [2018-10-27 11:57:22,640 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label37_false-unreach-call.c [2018-10-27 11:57:22,650 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 11:57:22,659 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 11:57:22,676 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 11:57:22,722 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 11:57:22,722 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 11:57:22,722 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 11:57:22,722 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 11:57:22,722 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 11:57:22,723 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 11:57:22,723 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 11:57:22,723 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 11:57:22,763 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 11:57:22,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 11:57:22,775 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:57:22,776 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] [2018-10-27 11:57:22,778 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:57:22,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:57:22,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1359404802, now seen corresponding path program 1 times [2018-10-27 11:57:22,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:57:22,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:22,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:57:22,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:22,836 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:57:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:57:23,265 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 11:57:23,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:57:23,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:57:23,269 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:57:23,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:57:23,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:57:23,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:57:23,296 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 11:57:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:57:34,030 INFO L93 Difference]: Finished difference Result 2137 states and 3966 transitions. [2018-10-27 11:57:34,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:57:34,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-27 11:57:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:57:34,077 INFO L225 Difference]: With dead ends: 2137 [2018-10-27 11:57:34,077 INFO L226 Difference]: Without dead ends: 1527 [2018-10-27 11:57:34,090 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:57:34,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-10-27 11:57:34,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1513. [2018-10-27 11:57:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2018-10-27 11:57:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2344 transitions. [2018-10-27 11:57:34,240 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2344 transitions. Word has length 25 [2018-10-27 11:57:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:57:34,241 INFO L481 AbstractCegarLoop]: Abstraction has 1513 states and 2344 transitions. [2018-10-27 11:57:34,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:57:34,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2344 transitions. [2018-10-27 11:57:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-27 11:57:34,246 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:57:34,247 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 11:57:34,247 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:57:34,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:57:34,248 INFO L82 PathProgramCache]: Analyzing trace with hash -72391217, now seen corresponding path program 1 times [2018-10-27 11:57:34,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:57:34,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:34,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:57:34,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:34,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:57:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:57:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:57:34,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:57:34,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 11:57:34,626 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:57:34,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 11:57:34,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 11:57:34,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 11:57:34,630 INFO L87 Difference]: Start difference. First operand 1513 states and 2344 transitions. Second operand 5 states. [2018-10-27 11:57:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:57:44,117 INFO L93 Difference]: Finished difference Result 4413 states and 7007 transitions. [2018-10-27 11:57:44,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:57:44,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-10-27 11:57:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:57:44,140 INFO L225 Difference]: With dead ends: 4413 [2018-10-27 11:57:44,141 INFO L226 Difference]: Without dead ends: 2906 [2018-10-27 11:57:44,148 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 11:57:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2018-10-27 11:57:44,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2873. [2018-10-27 11:57:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-10-27 11:57:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4204 transitions. [2018-10-27 11:57:44,257 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4204 transitions. Word has length 97 [2018-10-27 11:57:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:57:44,257 INFO L481 AbstractCegarLoop]: Abstraction has 2873 states and 4204 transitions. [2018-10-27 11:57:44,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 11:57:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4204 transitions. [2018-10-27 11:57:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-27 11:57:44,261 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:57:44,262 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 11:57:44,262 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:57:44,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:57:44,262 INFO L82 PathProgramCache]: Analyzing trace with hash 902926633, now seen corresponding path program 1 times [2018-10-27 11:57:44,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:57:44,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:44,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:57:44,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:44,264 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:57:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:57:44,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:57:44,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 11:57:44,494 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 11:57:44,495 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 101 with the following transitions: [2018-10-27 11:57:44,497 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 11:57:44,559 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 11:57:44,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 11:57:44,993 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 11:57:47,829 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 11:57:47,830 INFO L272 AbstractInterpreter]: Visited 82 different actions 462 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 11:57:47,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:57:47,875 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 11:57:48,362 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 75.16% of their original sizes. [2018-10-27 11:57:48,362 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 11:57:48,983 INFO L415 sIntCurrentIteration]: We unified 99 AI predicates to 99 [2018-10-27 11:57:48,983 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 11:57:48,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 11:57:48,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-10-27 11:57:48,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:57:48,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 11:57:48,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 11:57:48,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 11:57:48,986 INFO L87 Difference]: Start difference. First operand 2873 states and 4204 transitions. Second operand 9 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown