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-EXP.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1_variant_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 09:14:41,683 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 09:14:41,686 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 09:14:41,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 09:14:41,702 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 09:14:41,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 09:14:41,707 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 09:14:41,709 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 09:14:41,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 09:14:41,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 09:14:41,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 09:14:41,719 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 09:14:41,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 09:14:41,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 09:14:41,723 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 09:14:41,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 09:14:41,727 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 09:14:41,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 09:14:41,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 09:14:41,737 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 09:14:41,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 09:14:41,741 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 09:14:41,747 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 09:14:41,747 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 09:14:41,748 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 09:14:41,750 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 09:14:41,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 09:14:41,752 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 09:14:41,753 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 09:14:41,754 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 09:14:41,754 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 09:14:41,756 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 09:14:41,759 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 09:14:41,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 09:14:41,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 09:14:41,785 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 09:14:41,785 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 09:14:41,785 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 09:14:41,786 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 09:14:41,786 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 09:14:41,786 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 09:14:41,786 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 09:14:41,786 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 09:14:41,786 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 09:14:41,787 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 09:14:41,789 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 09:14:41,789 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 09:14:41,790 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 09:14:41,790 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 09:14:41,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 09:14:41,791 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 09:14:41,791 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 09:14:41,791 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 09:14:41,791 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 09:14:41,791 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 09:14:41,793 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 09:14:41,793 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 09:14:41,793 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 09:14:41,794 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 09:14:41,794 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 09:14:41,794 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 09:14:41,794 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 09:14:41,794 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 09:14:41,795 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 09:14:41,795 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 09:14:41,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 09:14:41,795 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 09:14:41,796 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 09:14:41,796 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 09:14:41,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 09:14:41,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 09:14:41,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 09:14:41,878 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 09:14:41,878 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 09:14:41,879 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-10-27 09:14:41,944 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1d55b0709/976fec05e3934672be7f8cae409beab3/FLAGd51988d64 [2018-10-27 09:14:42,379 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 09:14:42,379 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-10-27 09:14:42,385 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1d55b0709/976fec05e3934672be7f8cae409beab3/FLAGd51988d64 [2018-10-27 09:14:42,399 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1d55b0709/976fec05e3934672be7f8cae409beab3 [2018-10-27 09:14:42,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 09:14:42,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 09:14:42,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 09:14:42,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 09:14:42,416 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 09:14:42,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb4917e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42, skipping insertion in model container [2018-10-27 09:14:42,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 09:14:42,458 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 09:14:42,674 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 09:14:42,678 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 09:14:42,697 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 09:14:42,713 INFO L193 MainTranslator]: Completed translation [2018-10-27 09:14:42,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42 WrapperNode [2018-10-27 09:14:42,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 09:14:42,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 09:14:42,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 09:14:42,715 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 09:14:42,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 09:14:42,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 09:14:42,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 09:14:42,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 09:14:42,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (1/1) ... [2018-10-27 09:14:42,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 09:14:42,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 09:14:42,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 09:14:42,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 09:14:42,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (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 09:14:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 09:14:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 09:14:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 09:14:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 09:14:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 09:14:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 09:14:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 09:14:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 09:14:43,108 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 09:14:43,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:14:43 BoogieIcfgContainer [2018-10-27 09:14:43,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 09:14:43,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 09:14:43,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 09:14:43,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 09:14:43,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 09:14:42" (1/3) ... [2018-10-27 09:14:43,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fae6f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:14:43, skipping insertion in model container [2018-10-27 09:14:43,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:14:42" (2/3) ... [2018-10-27 09:14:43,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fae6f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:14:43, skipping insertion in model container [2018-10-27 09:14:43,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:14:43" (3/3) ... [2018-10-27 09:14:43,122 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant_true-unreach-call_true-termination.i [2018-10-27 09:14:43,131 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 09:14:43,138 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 09:14:43,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 09:14:43,184 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 09:14:43,185 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 09:14:43,185 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 09:14:43,185 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 09:14:43,185 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 09:14:43,185 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 09:14:43,186 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 09:14:43,186 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 09:14:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-27 09:14:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 09:14:43,211 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 09:14:43,212 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 09:14:43,214 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 09:14:43,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:14:43,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1350619, now seen corresponding path program 1 times [2018-10-27 09:14:43,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 09:14:43,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:14:43,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:14:43,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:14:43,281 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 09:14:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:14:43,551 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 09:14:43,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 09:14:43,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 09:14:43,553 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 09:14:43,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 09:14:43,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 09:14:43,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 09:14:43,574 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-10-27 09:14:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 09:14:43,756 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-10-27 09:14:43,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 09:14:43,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-27 09:14:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 09:14:43,767 INFO L225 Difference]: With dead ends: 43 [2018-10-27 09:14:43,767 INFO L226 Difference]: Without dead ends: 23 [2018-10-27 09:14:43,771 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 09:14:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-27 09:14:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-10-27 09:14:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-27 09:14:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-27 09:14:43,808 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2018-10-27 09:14:43,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 09:14:43,809 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-27 09:14:43,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 09:14:43,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-27 09:14:43,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 09:14:43,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 09:14:43,810 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 09:14:43,811 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 09:14:43,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:14:43,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1691970717, now seen corresponding path program 1 times [2018-10-27 09:14:43,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 09:14:43,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:14:43,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:14:43,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:14:43,813 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 09:14:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:14:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 09:14:43,949 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 09:14:43,949 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 09:14:43,950 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-10-27 09:14:43,952 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [16], [22], [25], [27], [30], [32], [33], [34], [35], [37], [38] [2018-10-27 09:14:43,986 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 09:14:43,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 09:14:44,142 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 09:14:44,143 INFO L272 AbstractInterpreter]: Visited 15 different actions 35 times. Merged at 4 different actions 8 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-10-27 09:14:44,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:14:44,189 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 09:14:44,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 09:14:44,190 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 09:14:44,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:14:44,206 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 09:14:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:14:44,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 09:14:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 09:14:44,414 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 09:14:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 09:14:44,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 09:14:44,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2018-10-27 09:14:44,639 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 09:14:44,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 09:14:44,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 09:14:44,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-27 09:14:44,642 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-10-27 09:14:44,874 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 6 [2018-10-27 09:14:45,099 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-10-27 09:14:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 09:14:45,121 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-10-27 09:14:45,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 09:14:45,122 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-10-27 09:14:45,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 09:14:45,123 INFO L225 Difference]: With dead ends: 33 [2018-10-27 09:14:45,124 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 09:14:45,125 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-10-27 09:14:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 09:14:45,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-10-27 09:14:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-27 09:14:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-10-27 09:14:45,134 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 19 [2018-10-27 09:14:45,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 09:14:45,135 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-10-27 09:14:45,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 09:14:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-10-27 09:14:45,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 09:14:45,136 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 09:14:45,136 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 09:14:45,137 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 09:14:45,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:14:45,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1146463393, now seen corresponding path program 2 times [2018-10-27 09:14:45,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 09:14:45,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:14:45,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:14:45,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:14:45,139 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 09:14:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:14:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 09:14:45,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 09:14:45,353 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 09:14:45,353 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 09:14:45,354 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 09:14:45,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 09:14:45,354 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 09:14:45,368 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 09:14:45,368 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 09:14:45,387 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-10-27 09:14:45,387 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 09:14:45,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 09:14:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 09:14:45,467 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 09:14:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 09:14:45,951 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 09:14:45,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 12 [2018-10-27 09:14:45,952 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 09:14:45,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 09:14:45,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 09:14:45,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-27 09:14:45,953 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 11 states. [2018-10-27 09:14:46,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 09:14:46,060 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-10-27 09:14:46,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 09:14:46,060 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2018-10-27 09:14:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 09:14:46,061 INFO L225 Difference]: With dead ends: 30 [2018-10-27 09:14:46,061 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 09:14:46,062 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-10-27 09:14:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 09:14:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 09:14:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 09:14:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 09:14:46,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-10-27 09:14:46,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 09:14:46,063 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 09:14:46,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 09:14:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 09:14:46,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 09:14:46,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 09:14:46,161 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 09:14:46,161 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 09:14:46,161 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 09:14:46,161 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 09:14:46,162 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 09:14:46,162 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 09:14:46,162 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 16) the Hoare annotation is: true [2018-10-27 09:14:46,162 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 16) no Hoare annotation was computed. [2018-10-27 09:14:46,163 INFO L421 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (<= main_~i~0 999999) [2018-10-27 09:14:46,163 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 16) no Hoare annotation was computed. [2018-10-27 09:14:46,163 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2018-10-27 09:14:46,163 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2018-10-27 09:14:46,163 INFO L421 ceAbstractionStarter]: At program point L12-3(lines 12 14) the Hoare annotation is: (<= main_~i~0 1000000) [2018-10-27 09:14:46,163 INFO L425 ceAbstractionStarter]: For program point L12-4(lines 12 14) no Hoare annotation was computed. [2018-10-27 09:14:46,164 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-27 09:14:46,164 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-27 09:14:46,164 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-27 09:14:46,164 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-27 09:14:46,164 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-27 09:14:46,165 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-27 09:14:46,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 09:14:46 BoogieIcfgContainer [2018-10-27 09:14:46,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 09:14:46,180 INFO L168 Benchmark]: Toolchain (without parser) took 3769.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -631.6 MB). Peak memory consumption was 100.9 MB. Max. memory is 7.1 GB. [2018-10-27 09:14:46,181 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 09:14:46,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.63 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-27 09:14:46,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.51 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 09:14:46,184 INFO L168 Benchmark]: Boogie Preprocessor took 22.63 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 09:14:46,184 INFO L168 Benchmark]: RCFGBuilder took 351.40 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-27 09:14:46,185 INFO L168 Benchmark]: TraceAbstraction took 3066.86 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 142.6 MB). Peak memory consumption was 142.6 MB. Max. memory is 7.1 GB. [2018-10-27 09:14:46,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.63 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 22.51 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. * Boogie Preprocessor took 22.63 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. * RCFGBuilder took 351.40 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3066.86 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 142.6 MB). Peak memory consumption was 142.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 32 SDslu, 132 SDs, 0 SdLazy, 103 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 89 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 11 HoareAnnotationTreeSize, 10 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 103 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 6780 SizeOfPredicates, 5 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 46/69 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...