java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:29:21,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:29:21,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:29:21,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:29:21,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:29:21,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:29:21,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:29:21,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:29:21,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:29:21,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:29:21,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:29:21,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:29:21,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:29:21,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:29:21,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:29:21,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:29:21,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:29:21,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:29:21,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:29:21,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:29:21,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:29:21,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:29:21,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:29:21,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:29:21,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 13:29:21,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:29:21,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:29:21,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:29:21,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 13:29:21,750 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:29:21,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:29:21,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:29:21,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:29:21,754 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:29:21,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:29:21,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:29:21,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:29:21,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:29:21,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:29:21,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:29:21,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:29:21,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:29:21,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:29:21,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:29:21,756 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:29:21,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:29:21,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:29:21,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:29:21,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:29:21,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:29:21,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:29:21,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:29:21,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:29:21,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:29:21,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:29:21,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:29:21,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:29:21,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:29:22,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:29:22,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:29:22,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:29:22,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:29:22,082 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:29:22,082 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-10-07 13:29:22,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e3d63a7/3825122172134bde9f33851fd4dc6acc/FLAG23412740a [2019-10-07 13:29:22,651 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:29:22,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-10-07 13:29:22,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e3d63a7/3825122172134bde9f33851fd4dc6acc/FLAG23412740a [2019-10-07 13:29:23,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e3d63a7/3825122172134bde9f33851fd4dc6acc [2019-10-07 13:29:23,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:29:23,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:29:23,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:29:23,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:29:23,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:29:23,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb7bbc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23, skipping insertion in model container [2019-10-07 13:29:23,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,038 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:29:23,060 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:29:23,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:29:23,253 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:29:23,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:29:23,293 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:29:23,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23 WrapperNode [2019-10-07 13:29:23,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:29:23,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:29:23,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:29:23,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:29:23,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... [2019-10-07 13:29:23,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:29:23,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:29:23,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:29:23,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:29:23,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:29:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:29:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:29:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:29:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:29:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:29:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:29:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:29:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:29:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 13:29:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 13:29:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 13:29:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 13:29:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:29:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:29:23,779 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:29:23,779 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 13:29:23,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:29:23 BoogieIcfgContainer [2019-10-07 13:29:23,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:29:23,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:29:23,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:29:23,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:29:23,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:29:23" (1/3) ... [2019-10-07 13:29:23,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1246e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:29:23, skipping insertion in model container [2019-10-07 13:29:23,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:29:23" (2/3) ... [2019-10-07 13:29:23,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1246e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:29:23, skipping insertion in model container [2019-10-07 13:29:23,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:29:23" (3/3) ... [2019-10-07 13:29:23,797 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2019-10-07 13:29:23,820 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:29:23,828 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:29:23,840 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:29:23,876 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:29:23,877 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:29:23,877 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:29:23,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:29:23,877 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:29:23,877 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:29:23,877 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:29:23,878 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:29:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-07 13:29:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 13:29:23,902 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:29:23,903 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:29:23,905 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:29:23,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:29:23,910 INFO L82 PathProgramCache]: Analyzing trace with hash 736787156, now seen corresponding path program 1 times [2019-10-07 13:29:23,917 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:29:23,917 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:23,918 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:23,918 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:29:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:29:24,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:29:24,042 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,042 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:29:24,042 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 13:29:24,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 13:29:24,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 13:29:24,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 13:29:24,062 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-10-07 13:29:24,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:29:24,086 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-07 13:29:24,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 13:29:24,088 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-07 13:29:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:29:24,097 INFO L225 Difference]: With dead ends: 31 [2019-10-07 13:29:24,098 INFO L226 Difference]: Without dead ends: 14 [2019-10-07 13:29:24,101 INFO L606 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 [2019-10-07 13:29:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-07 13:29:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-07 13:29:24,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-07 13:29:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-07 13:29:24,142 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2019-10-07 13:29:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:29:24,142 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-07 13:29:24,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 13:29:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-07 13:29:24,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-07 13:29:24,143 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:29:24,144 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:29:24,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:29:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:29:24,145 INFO L82 PathProgramCache]: Analyzing trace with hash 936572058, now seen corresponding path program 1 times [2019-10-07 13:29:24,145 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:29:24,145 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:24,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:29:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:29:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:29:24,214 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,215 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:29:24,221 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:29:24,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:29:24,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:29:24,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:29:24,228 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-10-07 13:29:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:29:24,274 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-10-07 13:29:24,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:29:24,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-07 13:29:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:29:24,282 INFO L225 Difference]: With dead ends: 27 [2019-10-07 13:29:24,283 INFO L226 Difference]: Without dead ends: 19 [2019-10-07 13:29:24,284 INFO L606 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 [2019-10-07 13:29:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-07 13:29:24,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-10-07 13:29:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-07 13:29:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-10-07 13:29:24,292 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-10-07 13:29:24,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:29:24,293 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-10-07 13:29:24,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:29:24,293 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-10-07 13:29:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 13:29:24,295 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:29:24,296 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:29:24,296 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:29:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:29:24,297 INFO L82 PathProgramCache]: Analyzing trace with hash 758685559, now seen corresponding path program 1 times [2019-10-07 13:29:24,297 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:29:24,297 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,297 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:24,298 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:29:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:29:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 13:29:24,421 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,422 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:29:24,422 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:29:24,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:29:24,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:29:24,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:29:24,424 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-10-07 13:29:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:29:24,475 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-10-07 13:29:24,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:29:24,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-07 13:29:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:29:24,476 INFO L225 Difference]: With dead ends: 23 [2019-10-07 13:29:24,477 INFO L226 Difference]: Without dead ends: 18 [2019-10-07 13:29:24,477 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:29:24,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-07 13:29:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-07 13:29:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-07 13:29:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-07 13:29:24,483 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2019-10-07 13:29:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:29:24,484 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-07 13:29:24,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:29:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-07 13:29:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-07 13:29:24,485 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:29:24,485 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:29:24,485 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:29:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:29:24,486 INFO L82 PathProgramCache]: Analyzing trace with hash -231883635, now seen corresponding path program 1 times [2019-10-07 13:29:24,486 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:29:24,486 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,487 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:24,487 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:29:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:29:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:29:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 13:29:24,544 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:29:24,545 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:29:24,545 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:29:24,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:29:24,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:29:24,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:29:24,547 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2019-10-07 13:29:24,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:29:24,589 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-10-07 13:29:24,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:29:24,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-07 13:29:24,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:29:24,590 INFO L225 Difference]: With dead ends: 18 [2019-10-07 13:29:24,591 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:29:24,591 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:29:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:29:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:29:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:29:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:29:24,593 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-07 13:29:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:29:24,593 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:29:24,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:29:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:29:24,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:29:24,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:29:24,648 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:29:24,649 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:29:24,649 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:29:24,649 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:29:24,649 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:29:24,649 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:29:24,649 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2019-10-07 13:29:24,650 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-10-07 13:29:24,650 INFO L439 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-10-07 13:29:24,650 INFO L439 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-10-07 13:29:24,650 INFO L446 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-10-07 13:29:24,650 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2019-10-07 13:29:24,650 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-07 13:29:24,651 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-10-07 13:29:24,651 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:29:24,651 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:29:24,653 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:29:24,653 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:29:24,653 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:29:24,654 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:29:24,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:29:24 BoogieIcfgContainer [2019-10-07 13:29:24,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:29:24,671 INFO L168 Benchmark]: Toolchain (without parser) took 1652.69 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.3 MB in the beginning and 117.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:29:24,671 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:29:24,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.66 ms. Allocated memory is still 145.8 MB. Free memory was 103.0 MB in the beginning and 93.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:29:24,673 INFO L168 Benchmark]: Boogie Preprocessor took 125.62 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.3 MB in the beginning and 181.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:29:24,674 INFO L168 Benchmark]: RCFGBuilder took 360.50 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 165.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:29:24,675 INFO L168 Benchmark]: TraceAbstraction took 885.91 ms. Allocated memory is still 203.4 MB. Free memory was 165.7 MB in the beginning and 117.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2019-10-07 13:29:24,679 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.66 ms. Allocated memory is still 145.8 MB. Free memory was 103.0 MB in the beginning and 93.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.62 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.3 MB in the beginning and 181.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.50 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 165.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 885.91 ms. Allocated memory is still 203.4 MB. Free memory was 165.7 MB in the beginning and 117.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 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: 17]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 8 SDslu, 63 SDs, 0 SdLazy, 41 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 12 HoareAnnotationTreeSize, 11 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...