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-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:59:15,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:59:15,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:59:15,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:59:15,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:59:15,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:59:15,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:59:15,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:59:15,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:59:15,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:59:15,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:59:15,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:59:15,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:59:15,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:59:15,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:59:15,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:59:15,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:59:15,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:59:15,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:59:15,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:59:15,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:59:15,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:59:15,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:59:15,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:59:15,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 22:59:15,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:59:15,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:59:15,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:59:15,253 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 [2019-10-13 22:59:15,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:59:15,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:59:15,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:59:15,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:59:15,276 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:59:15,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:59:15,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:59:15,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:59:15,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:59:15,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:59:15,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:59:15,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:59:15,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:59:15,280 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:59:15,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:59:15,280 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:59:15,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:59:15,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:59:15,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:59:15,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:59:15,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:59:15,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:59:15,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:59:15,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:59:15,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:59:15,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:59:15,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:59:15,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:59:15,286 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 [2019-10-13 22:59:15,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:59:15,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:59:15,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:59:15,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:59:15,572 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:59:15,572 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2019-10-13 22:59:15,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad61448fa/76b77c4f881a4dd79a4b8676eed22dec/FLAG9f2acf7ae [2019-10-13 22:59:16,085 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:59:16,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i [2019-10-13 22:59:16,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad61448fa/76b77c4f881a4dd79a4b8676eed22dec/FLAG9f2acf7ae [2019-10-13 22:59:16,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad61448fa/76b77c4f881a4dd79a4b8676eed22dec [2019-10-13 22:59:16,500 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:59:16,502 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:59:16,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:16,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:59:16,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:59:16,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6228bf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16, skipping insertion in model container [2019-10-13 22:59:16,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,519 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:59:16,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:59:16,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:16,756 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:59:16,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:16,783 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:59:16,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16 WrapperNode [2019-10-13 22:59:16,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:16,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:59:16,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:59:16,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:59:16,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (1/1) ... [2019-10-13 22:59:16,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:59:16,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:59:16,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:59:16,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:59:16,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (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 [2019-10-13 22:59:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:59:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:59:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 22:59:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:59:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:59:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:59:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 22:59:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:59:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:59:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:59:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:59:17,133 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:59:17,133 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 22:59:17,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:17 BoogieIcfgContainer [2019-10-13 22:59:17,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:59:17,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:59:17,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:59:17,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:59:17,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:59:16" (1/3) ... [2019-10-13 22:59:17,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87a08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:17, skipping insertion in model container [2019-10-13 22:59:17,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:16" (2/3) ... [2019-10-13 22:59:17,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87a08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:17, skipping insertion in model container [2019-10-13 22:59:17,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:17" (3/3) ... [2019-10-13 22:59:17,143 INFO L109 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2019-10-13 22:59:17,155 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:59:17,167 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:59:17,183 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:59:17,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:59:17,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:59:17,212 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:59:17,212 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:59:17,213 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:59:17,213 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:59:17,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:59:17,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:59:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-13 22:59:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 22:59:17,249 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:17,251 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:17,253 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:17,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1656847251, now seen corresponding path program 1 times [2019-10-13 22:59:17,270 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:17,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989371149] [2019-10-13 22:59:17,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:17,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:17,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:17,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989371149] [2019-10-13 22:59:17,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:59:17,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:59:17,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237980719] [2019-10-13 22:59:17,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:59:17,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:17,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:59:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:59:17,594 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2019-10-13 22:59:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:17,684 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2019-10-13 22:59:17,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 22:59:17,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-10-13 22:59:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:17,698 INFO L225 Difference]: With dead ends: 38 [2019-10-13 22:59:17,699 INFO L226 Difference]: Without dead ends: 14 [2019-10-13 22:59:17,702 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:59:17,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-13 22:59:17,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-13 22:59:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-13 22:59:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-13 22:59:17,742 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-10-13 22:59:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:17,742 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-13 22:59:17,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:59:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-13 22:59:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 22:59:17,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:17,744 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:17,744 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:17,745 INFO L82 PathProgramCache]: Analyzing trace with hash -862151400, now seen corresponding path program 1 times [2019-10-13 22:59:17,745 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:17,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284042415] [2019-10-13 22:59:17,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:17,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:17,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:17,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284042415] [2019-10-13 22:59:17,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305375569] [2019-10-13 22:59:17,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:17,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 22:59:17,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:18,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:59:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:18,108 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:18,205 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1144054797] [2019-10-13 22:59:18,239 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-13 22:59:18,240 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:18,267 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:18,278 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:18,278 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:18,328 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-13 22:59:18,706 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-13 22:59:18,745 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-13 22:59:18,751 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:18,751 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:18,752 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 110#true [2019-10-13 22:59:18,752 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= 0 (+ main_~b~0 2147483648)) (<= 0 (+ main_~a~0 2147483648)) (<= main_~a~0 2147483647) (<= main_~b~0 2147483647)) [2019-10-13 22:59:18,752 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 96#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-13 22:59:18,752 INFO L193 IcfgInterpreter]: Reachable states at location L15 satisfy 43#(and (<= 0 (+ main_~b~0 2147483648)) (<= main_~a~0 1000000) (<= 0 (+ main_~a~0 2147483648)) (<= main_~a~0 2147483647) (<= main_~b~0 2147483647)) [2019-10-13 22:59:18,753 INFO L193 IcfgInterpreter]: Reachable states at location L18-3 satisfy 86#(and (<= 0 main_~b~0) (not (< 0 main_~cnt~0)) (<= main_~cnt~0 1000000) (<= 0 (+ main_~a~0 2147483648)) (<= main_~a~0 1000000) (<= 0 (+ main_~res~0 2147483648)) (<= 0 (+ main_~cnt~0 1)) (<= main_~b~0 1000000) (<= main_~cnt~0 0)) [2019-10-13 22:59:18,753 INFO L193 IcfgInterpreter]: Reachable states at location L18-2 satisfy 81#(or (and (= main_~res~0 main_~a~0) (<= 0 main_~b~0) (<= 0 (+ main_~b~0 2147483648)) (<= main_~cnt~0 1000000) (<= main_~a~0 2147483647) (<= 0 main_~cnt~0) (= main_~cnt~0 main_~b~0) (<= main_~b~0 2147483647) (<= main_~a~0 1000000) (<= 0 (+ main_~a~0 2147483648)) (<= 0 (+ main_~res~0 2147483648)) (<= main_~b~0 1000000) (<= main_~res~0 1000000)) (and (<= 0 main_~b~0) (<= main_~cnt~0 1000000) (<= 0 (+ main_~a~0 2147483648)) (<= main_~a~0 1000000) (<= 0 (+ main_~res~0 2147483648)) (<= 0 (+ main_~cnt~0 1)) (<= main_~b~0 1000000))) [2019-10-13 22:59:18,753 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-13 22:59:18,754 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-13 22:59:18,754 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 115#true [2019-10-13 22:59:18,755 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 106#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 22:59:18,755 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:18,756 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 101#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 22:59:18,756 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 91#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1))) [2019-10-13 22:59:19,073 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 22:59:19,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 8] total 21 [2019-10-13 22:59:19,073 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348495915] [2019-10-13 22:59:19,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 22:59:19,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:19,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 22:59:19,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-13 22:59:19,080 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 21 states. [2019-10-13 22:59:19,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:19,416 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-10-13 22:59:19,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 22:59:19,417 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 13 [2019-10-13 22:59:19,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:19,418 INFO L225 Difference]: With dead ends: 16 [2019-10-13 22:59:19,418 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:59:19,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2019-10-13 22:59:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:59:19,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:59:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:59:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:59:19,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-13 22:59:19,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:19,427 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:59:19,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 22:59:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:59:19,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:59:19,636 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:19,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:59:19,745 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 22:59:19,745 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:19,745 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:19,745 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 22:59:19,745 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:59:19,745 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:59:19,746 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2019-10-13 22:59:19,746 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2019-10-13 22:59:19,746 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-13 22:59:19,746 INFO L439 ceAbstractionStarter]: At program point L18-2(lines 18 21) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= 0 main_~b~0) (<= main_~cnt~0 1000000) (<= main_~a~0 1000000) (<= 0 (+ main_~a~0 2147483648)) (<= 0 (+ main_~res~0 2147483648)) (< main_~res~0 (+ main_~a~0 main_~b~0 1)) (<= .cse1 .cse0) (<= main_~b~0 1000000))) [2019-10-13 22:59:19,747 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-13 22:59:19,747 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (<= (+ main_~a~0 main_~b~0) main_~res~0) (< main_~res~0 (+ main_~a~0 main_~b~0 1))) [2019-10-13 22:59:19,747 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-13 22:59:19,747 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 24) no Hoare annotation was computed. [2019-10-13 22:59:19,747 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 22:59:19,748 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 22:59:19,748 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 22:59:19,748 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 22:59:19,748 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 22:59:19,749 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 22:59:19,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:59:19 BoogieIcfgContainer [2019-10-13 22:59:19,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:59:19,787 INFO L168 Benchmark]: Toolchain (without parser) took 3281.75 ms. Allocated memory was 143.7 MB in the beginning and 247.5 MB in the end (delta: 103.8 MB). Free memory was 100.6 MB in the beginning and 220.4 MB in the end (delta: -119.8 MB). Peak memory consumption was 111.3 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:19,788 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 22:59:19,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.01 ms. Allocated memory is still 143.7 MB. Free memory was 100.4 MB in the beginning and 91.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:19,796 INFO L168 Benchmark]: Boogie Preprocessor took 114.50 ms. Allocated memory was 143.7 MB in the beginning and 199.8 MB in the end (delta: 56.1 MB). Free memory was 91.1 MB in the beginning and 178.5 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:19,797 INFO L168 Benchmark]: RCFGBuilder took 235.56 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 166.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:19,798 INFO L168 Benchmark]: TraceAbstraction took 2645.91 ms. Allocated memory was 199.8 MB in the beginning and 247.5 MB in the end (delta: 47.7 MB). Free memory was 166.0 MB in the beginning and 220.4 MB in the end (delta: -54.4 MB). Peak memory consumption was 120.6 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:19,814 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.01 ms. Allocated memory is still 143.7 MB. Free memory was 100.4 MB in the beginning and 91.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.50 ms. Allocated memory was 143.7 MB in the beginning and 199.8 MB in the end (delta: 56.1 MB). Free memory was 91.1 MB in the beginning and 178.5 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 235.56 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 166.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2645.91 ms. Allocated memory was 199.8 MB in the beginning and 247.5 MB in the end (delta: 47.7 MB). Free memory was 166.0 MB in the beginning and 220.4 MB in the end (delta: -54.4 MB). Peak memory consumption was 120.6 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: 18]: Loop Invariant Derived loop invariant: (((((((a + b <= res + cnt && 0 <= b) && cnt <= 1000000) && a <= 1000000) && 0 <= a + 2147483648) && 0 <= res + 2147483648) && res < a + b + 1) && res + cnt <= a + b) && b <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 26 SDtfs, 26 SDslu, 98 SDs, 0 SdLazy, 76 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.9s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 60 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 127 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2569 SizeOfPredicates, 5 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 518, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 23, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 12, TOOLS_POST_TIME[ms]: 19, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 18, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 19, TOOLS_QUANTIFIERELIM_TIME[ms]: 23, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 12, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 26, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 20, DOMAIN_JOIN_TIME[ms]: 285, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 89, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 1, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 223, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 222, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 6, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 15, DAG_COMPRESSION_PROCESSED_NODES: 68, DAG_COMPRESSION_RETAINED_NODES: 45, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...