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-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:41:22,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:41:22,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:41:22,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:41:22,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:41:22,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:41:22,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:41:22,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:41:22,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:41:22,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:41:22,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:41:22,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:41:22,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:41:22,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:41:22,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:41:22,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:41:22,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:41:22,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:41:22,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:41:22,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:41:22,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:41:22,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:41:22,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:41:22,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:41:22,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:41:22,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:41:22,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:41:22,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:41:22,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:41:22,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:41:22,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:41:22,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:41:22,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:41:22,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:41:22,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:41:22,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:41:22,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:41:22,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:41:22,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:41:22,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:41:22,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:41:22,429 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 13:41:22,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:41:22,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:41:22,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:41:22,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:41:22,473 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:41:22,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:41:22,473 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:41:22,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:41:22,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:41:22,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:41:22,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:41:22,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:41:22,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:41:22,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:41:22,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:41:22,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:41:22,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:41:22,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:41:22,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:41:22,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:41:22,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:41:22,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:41:22,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:41:22,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:41:22,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:41:22,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:41:22,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:41:22,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:41:22,477 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 13:41:22,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:41:22,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:41:22,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:41:22,766 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:41:22,766 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:41:22,767 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2019-10-07 13:41:22,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/211d5de37/6187a04d7a2341fc92c6a5a89a1e727b/FLAG74f3f5991 [2019-10-07 13:41:23,333 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:41:23,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3.i [2019-10-07 13:41:23,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/211d5de37/6187a04d7a2341fc92c6a5a89a1e727b/FLAG74f3f5991 [2019-10-07 13:41:23,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/211d5de37/6187a04d7a2341fc92c6a5a89a1e727b [2019-10-07 13:41:23,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:41:23,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:41:23,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:41:23,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:41:23,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:41:23,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:41:23" (1/1) ... [2019-10-07 13:41:23,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486e466c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:23, skipping insertion in model container [2019-10-07 13:41:23,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:41:23" (1/1) ... [2019-10-07 13:41:23,716 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:41:23,733 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:41:23,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:41:23,974 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:41:24,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:41:24,015 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:41:24,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24 WrapperNode [2019-10-07 13:41:24,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:41:24,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:41:24,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:41:24,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:41:24,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (1/1) ... [2019-10-07 13:41:24,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:41:24,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:41:24,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:41:24,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:41:24,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (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 13:41:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:41:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:41:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:41:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:41:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:41:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:41:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:41:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:41:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:41:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:41:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:41:24,593 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:41:24,593 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 13:41:24,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:41:24 BoogieIcfgContainer [2019-10-07 13:41:24,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:41:24,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:41:24,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:41:24,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:41:24,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:41:23" (1/3) ... [2019-10-07 13:41:24,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b385e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:41:24, skipping insertion in model container [2019-10-07 13:41:24,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:24" (2/3) ... [2019-10-07 13:41:24,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b385e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:41:24, skipping insertion in model container [2019-10-07 13:41:24,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:41:24" (3/3) ... [2019-10-07 13:41:24,605 INFO L109 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2019-10-07 13:41:24,618 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:41:24,625 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:41:24,635 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:41:24,661 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:41:24,661 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:41:24,661 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:41:24,661 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:41:24,661 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:41:24,662 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:41:24,662 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:41:24,662 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:41:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-07 13:41:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-07 13:41:24,685 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:41:24,686 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:41:24,688 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:41:24,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:41:24,695 INFO L82 PathProgramCache]: Analyzing trace with hash -158879193, now seen corresponding path program 1 times [2019-10-07 13:41:24,704 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:41:24,704 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:24,705 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:24,705 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:24,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:41:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:41:24,943 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 13:41:24,944 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:24,945 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:41:24,945 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:41:24,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:41:24,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:41:24,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:41:24,961 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2019-10-07 13:41:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:41:25,099 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-10-07 13:41:25,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:41:25,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-07 13:41:25,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:41:25,107 INFO L225 Difference]: With dead ends: 39 [2019-10-07 13:41:25,107 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:41:25,110 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:41:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:41:25,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:41:25,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:41:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:41:25,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-07 13:41:25,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:41:25,135 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:41:25,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:41:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:41:25,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:41:25,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:41:25,194 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:41:25,194 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:41:25,195 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:41:25,195 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:41:25,196 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:41:25,196 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:41:25,196 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2019-10-07 13:41:25,197 INFO L439 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2019-10-07 13:41:25,197 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 18 20) no Hoare annotation was computed. [2019-10-07 13:41:25,197 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-07 13:41:25,197 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: (<= 1 main_~l~0) [2019-10-07 13:41:25,198 INFO L443 ceAbstractionStarter]: For program point L17-4(lines 10 24) no Hoare annotation was computed. [2019-10-07 13:41:25,199 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2019-10-07 13:41:25,199 INFO L443 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-10-07 13:41:25,199 INFO L439 ceAbstractionStarter]: At program point L18-2(lines 18 20) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2019-10-07 13:41:25,199 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-07 13:41:25,199 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:41:25,200 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:41:25,200 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:41:25,200 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:41:25,200 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:41:25,201 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:41:25,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:41:25 BoogieIcfgContainer [2019-10-07 13:41:25,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:41:25,222 INFO L168 Benchmark]: Toolchain (without parser) took 1521.30 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 103.1 MB in the beginning and 135.3 MB in the end (delta: -32.3 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:25,224 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 13:41:25,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.25 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 93.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:25,228 INFO L168 Benchmark]: Boogie Preprocessor took 174.17 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 93.5 MB in the beginning and 183.4 MB in the end (delta: -89.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:25,230 INFO L168 Benchmark]: RCFGBuilder took 403.46 ms. Allocated memory is still 205.5 MB. Free memory was 183.4 MB in the beginning and 168.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:25,232 INFO L168 Benchmark]: TraceAbstraction took 622.98 ms. Allocated memory is still 205.5 MB. Free memory was 168.0 MB in the beginning and 135.3 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:25,243 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.25 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 93.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.17 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 93.5 MB in the beginning and 183.4 MB in the end (delta: -89.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.46 ms. Allocated memory is still 205.5 MB. Free memory was 183.4 MB in the beginning and 168.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 622.98 ms. Allocated memory is still 205.5 MB. Free memory was 168.0 MB in the beginning and 135.3 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 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: 1 <= l - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 13 SDslu, 65 SDs, 0 SdLazy, 35 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 22 HoareAnnotationTreeSize, 9 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...