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/loop-acceleration/array_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:10:38,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:10:38,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:10:38,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:10:38,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:10:38,984 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:10:38,985 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:10:38,987 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:10:38,989 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:10:38,990 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:10:38,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:10:38,999 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:10:39,003 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:10:39,005 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:10:39,006 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:10:39,007 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:10:39,010 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:10:39,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:10:39,016 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:10:39,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:10:39,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:10:39,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:10:39,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:10:39,024 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:10:39,024 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:10:39,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:10:39,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:10:39,027 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:10:39,027 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:10:39,028 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:10:39,028 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:10:39,029 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 12:10:39,031 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 12:10:39,050 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:10:39,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:10:39,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:10:39,051 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:10:39,051 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:10:39,051 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:10:39,051 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:10:39,052 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:10:39,052 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:10:39,052 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:10:39,052 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:10:39,052 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:10:39,053 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:10:39,053 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:10:39,053 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:10:39,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:10:39,054 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:10:39,054 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:10:39,054 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:10:39,054 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:10:39,054 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:10:39,055 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:10:39,055 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:10:39,055 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:10:39,055 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:10:39,055 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:10:39,056 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:10:39,056 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:10:39,056 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:10:39,056 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:10:39,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:10:39,056 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:10:39,057 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:10:39,057 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:10:39,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:10:39,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:10:39,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:10:39,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:10:39,118 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:10:39,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-10-24 12:10:39,183 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73c518f59/e16b8580d29c4a50979235056d57fe6a/FLAGf6bcc90a4 [2018-10-24 12:10:39,648 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:10:39,648 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-10-24 12:10:39,657 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73c518f59/e16b8580d29c4a50979235056d57fe6a/FLAGf6bcc90a4 [2018-10-24 12:10:39,669 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73c518f59/e16b8580d29c4a50979235056d57fe6a [2018-10-24 12:10:39,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:10:39,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:10:39,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:10:39,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:10:39,687 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:10:39,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:39,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6351e815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39, skipping insertion in model container [2018-10-24 12:10:39,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:39,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:10:39,720 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:10:39,939 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:10:39,944 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:10:39,967 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:10:39,993 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:10:39,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39 WrapperNode [2018-10-24 12:10:39,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:10:39,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:10:39,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:10:39,995 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:10:40,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:10:40,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:10:40,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:10:40,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:10:40,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... [2018-10-24 12:10:40,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:10:40,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:10:40,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:10:40,082 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:10:40,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:10:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:10:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:10:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:10:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:10:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:10:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:10:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:10:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:10:40,609 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:10:40,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:10:40 BoogieIcfgContainer [2018-10-24 12:10:40,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:10:40,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:10:40,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:10:40,614 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:10:40,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:10:39" (1/3) ... [2018-10-24 12:10:40,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c05e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:10:40, skipping insertion in model container [2018-10-24 12:10:40,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:10:39" (2/3) ... [2018-10-24 12:10:40,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c05e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:10:40, skipping insertion in model container [2018-10-24 12:10:40,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:10:40" (3/3) ... [2018-10-24 12:10:40,617 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call3_true-termination.i [2018-10-24 12:10:40,627 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:10:40,634 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:10:40,650 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:10:40,684 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:10:40,684 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:10:40,684 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:10:40,684 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:10:40,684 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:10:40,685 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:10:40,685 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:10:40,685 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:10:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-24 12:10:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 12:10:40,708 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:10:40,708 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:10:40,711 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:10:40,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:10:40,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1794184535, now seen corresponding path program 1 times [2018-10-24 12:10:40,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:10:40,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:10:40,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:10:40,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:10:40,769 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:10:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:10:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:10:40,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:10:40,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:10:40,862 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:10:40,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:10:40,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:10:40,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:10:40,883 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-10-24 12:10:40,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:10:40,913 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-10-24 12:10:40,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:10:40,915 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-10-24 12:10:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:10:40,925 INFO L225 Difference]: With dead ends: 43 [2018-10-24 12:10:40,926 INFO L226 Difference]: Without dead ends: 19 [2018-10-24 12:10:40,932 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:10:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-24 12:10:40,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-10-24 12:10:40,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-24 12:10:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-24 12:10:40,968 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-10-24 12:10:40,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:10:40,968 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-24 12:10:40,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:10:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-24 12:10:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-24 12:10:40,970 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:10:40,970 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:10:40,970 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:10:40,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:10:40,971 INFO L82 PathProgramCache]: Analyzing trace with hash 612144665, now seen corresponding path program 1 times [2018-10-24 12:10:40,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:10:40,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:10:40,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:10:40,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:10:40,973 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:10:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:10:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:10:41,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:10:41,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 12:10:41,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:10:41,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 12:10:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 12:10:41,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 12:10:41,065 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-10-24 12:10:41,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:10:41,174 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-10-24 12:10:41,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 12:10:41,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-24 12:10:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:10:41,177 INFO L225 Difference]: With dead ends: 37 [2018-10-24 12:10:41,177 INFO L226 Difference]: Without dead ends: 27 [2018-10-24 12:10:41,178 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 12:10:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-24 12:10:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-10-24 12:10:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-24 12:10:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-10-24 12:10:41,186 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2018-10-24 12:10:41,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:10:41,187 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-10-24 12:10:41,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 12:10:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-10-24 12:10:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-24 12:10:41,188 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:10:41,189 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:10:41,189 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:10:41,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:10:41,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1794172150, now seen corresponding path program 1 times [2018-10-24 12:10:41,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:10:41,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:10:41,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:10:41,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:10:41,194 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:10:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:10:41,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:10:41,298 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:10:41,298 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 12:10:41,299 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-10-24 12:10:41,301 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [27], [43], [46], [48], [54], [55], [56], [58] [2018-10-24 12:10:41,352 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 12:10:41,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 12:10:41,942 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 12:10:41,943 INFO L272 AbstractInterpreter]: Visited 16 different actions 44 times. Merged at 3 different actions 21 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-10-24 12:10:41,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:10:41,968 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 12:10:42,159 INFO L232 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 89.08% of their original sizes. [2018-10-24 12:10:42,159 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 12:10:42,698 INFO L413 sIntCurrentIteration]: We have 17 unified AI predicates [2018-10-24 12:10:42,698 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 12:10:42,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 12:10:42,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2018-10-24 12:10:42,700 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:10:42,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 12:10:42,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 12:10:42,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-24 12:10:42,701 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 9 states. [2018-10-24 12:10:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:10:43,359 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2018-10-24 12:10:43,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 12:10:43,359 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-24 12:10:43,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:10:43,360 INFO L225 Difference]: With dead ends: 44 [2018-10-24 12:10:43,360 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:10:43,361 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 12:10:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:10:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:10:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:10:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:10:43,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-10-24 12:10:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:10:43,362 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:10:43,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 12:10:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:10:43,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:10:43,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:10:43,568 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 12 [2018-10-24 12:10:43,725 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 12 [2018-10-24 12:10:43,800 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:10:43,800 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:10:43,800 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:10:43,800 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:10:43,800 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:10:43,801 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:10:43,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:10:43,801 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2018-10-24 12:10:43,801 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-10-24 12:10:43,801 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-10-24 12:10:43,802 INFO L421 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (let ((.cse0 (* 2 |main_~#A~0.offset|))) (and (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= .cse0 0) (<= |main_~#A~0.offset| main_~i~0) (<= 0 .cse0))) [2018-10-24 12:10:43,802 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 23) no Hoare annotation was computed. [2018-10-24 12:10:43,802 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-10-24 12:10:43,802 INFO L421 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (let ((.cse0 (* 2 |main_~#A~0.offset|))) (and (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= .cse0 0) (<= |main_~#A~0.offset| main_~i~0) (<= 0 .cse0))) [2018-10-24 12:10:43,802 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2018-10-24 12:10:43,802 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 15) the Hoare annotation is: (let ((.cse0 (* 2 |main_~#A~0.offset|))) (and (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= .cse0 0) (<= |main_~#A~0.offset| main_~i~0) (<= 0 .cse0))) [2018-10-24 12:10:43,802 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 15) no Hoare annotation was computed. [2018-10-24 12:10:43,803 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2018-10-24 12:10:43,803 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-24 12:10:43,803 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-10-24 12:10:43,803 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-24 12:10:43,803 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 12:10:43,803 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:10:43,803 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 12:10:43,804 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 12:10:43,804 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:10:43,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:10:43 BoogieIcfgContainer [2018-10-24 12:10:43,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:10:43,815 INFO L168 Benchmark]: Toolchain (without parser) took 4134.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -549.4 MB). Peak memory consumption was 200.3 MB. Max. memory is 7.1 GB. [2018-10-24 12:10:43,816 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-24 12:10:43,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.96 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. [2018-10-24 12:10:43,818 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 12:10:43,819 INFO L168 Benchmark]: Boogie Preprocessor took 39.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 12:10:43,819 INFO L168 Benchmark]: RCFGBuilder took 527.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-24 12:10:43,820 INFO L168 Benchmark]: TraceAbstraction took 3204.01 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: 242.9 MB). Peak memory consumption was 242.9 MB. Max. memory is 7.1 GB. [2018-10-24 12:10:43,828 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.96 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 46.38 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 39.71 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 527.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3204.01 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: 242.9 MB). Peak memory consumption was 242.9 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: 17]: Loop Invariant Derived loop invariant: ((i <= A + 1024 && 2 * A <= 0) && A <= i) && 0 <= 2 * A - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((i <= A + 1024 && 2 * A <= 0) && A <= i) && 0 <= 2 * A - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 42 SDslu, 60 SDs, 0 SdLazy, 23 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.942156862745098 AbsIntWeakeningRatio, 1.411764705882353 AbsIntAvgWeakeningVarsNumRemoved, 99.29411764705883 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 21 NumberOfFragments, 62 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 300 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...