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-new/gauss_sum.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:59:28,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:59:28,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:59:28,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:59:28,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:59:28,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:59:28,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:59:28,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:59:28,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:59:28,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:59:28,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:59:28,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:59:28,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:59:28,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:59:28,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:59:28,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:59:28,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:59:28,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:59:28,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:59:28,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:59:28,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:59:28,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:59:28,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:59:28,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:59:28,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 22:59:28,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:59:28,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:59:28,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:59:28,352 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 22:59:28,366 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:59:28,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:59:28,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:59:28,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:59:28,368 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:59:28,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:59:28,368 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:59:28,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:59:28,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:59:28,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:59:28,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:59:28,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:59:28,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:59:28,369 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:59:28,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:59:28,370 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:59:28,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:59:28,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:59:28,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:59:28,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:59:28,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:59:28,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:59:28,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:59:28,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:59:28,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:59:28,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:59:28,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:59:28,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:59:28,372 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 22:59:28,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:59:28,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:59:28,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:59:28,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:59:28,704 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:59:28,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.v+cfa-reducer.c [2019-10-13 22:59:28,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634dcf9b7/b4e3f752b0c3441e8900204b70fdad7e/FLAGb57a30392 [2019-10-13 22:59:29,203 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:59:29,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.v+cfa-reducer.c [2019-10-13 22:59:29,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634dcf9b7/b4e3f752b0c3441e8900204b70fdad7e/FLAGb57a30392 [2019-10-13 22:59:29,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634dcf9b7/b4e3f752b0c3441e8900204b70fdad7e [2019-10-13 22:59:29,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:59:29,624 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:59:29,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:29,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:59:29,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:59:29,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:29,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57118955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29, skipping insertion in model container [2019-10-13 22:59:29,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:29,639 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:59:29,656 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:59:29,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:29,862 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:59:29,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:29,901 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:59:29,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29 WrapperNode [2019-10-13 22:59:29,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:29,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:59:29,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:59:29,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:59:30,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (1/1) ... [2019-10-13 22:59:30,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:59:30,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:59:30,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:59:30,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:59:30,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (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 22:59:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:59:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:59:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:59:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:59:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:59:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 22:59:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:59:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:59:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:59:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:59:30,281 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:59:30,281 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:59:30,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:30 BoogieIcfgContainer [2019-10-13 22:59:30,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:59:30,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:59:30,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:59:30,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:59:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:59:29" (1/3) ... [2019-10-13 22:59:30,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39eb0ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:30, skipping insertion in model container [2019-10-13 22:59:30,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29" (2/3) ... [2019-10-13 22:59:30,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39eb0ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:30, skipping insertion in model container [2019-10-13 22:59:30,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:30" (3/3) ... [2019-10-13 22:59:30,300 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2019-10-13 22:59:30,315 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:59:30,326 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:59:30,358 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:59:30,400 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:59:30,400 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:59:30,401 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:59:30,402 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:59:30,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:59:30,402 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:59:30,403 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:59:30,403 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:59:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-13 22:59:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 22:59:30,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:30,425 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:30,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:30,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:30,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1330646415, now seen corresponding path program 1 times [2019-10-13 22:59:30,438 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:30,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172835633] [2019-10-13 22:59:30,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:30,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:30,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:30,517 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:59:30,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572459] [2019-10-13 22:59:30,518 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 22:59:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:30,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 22:59:30,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:30,631 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 22:59:30,631 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:30,661 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 22:59:30,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172835633] [2019-10-13 22:59:30,662 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:59:30,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572459] [2019-10-13 22:59:30,663 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:59:30,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-10-13 22:59:30,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509921236] [2019-10-13 22:59:30,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:59:30,669 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:30,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:59:30,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:59:30,687 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-10-13 22:59:30,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:30,748 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-10-13 22:59:30,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:59:30,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-13 22:59:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:30,758 INFO L225 Difference]: With dead ends: 25 [2019-10-13 22:59:30,758 INFO L226 Difference]: Without dead ends: 12 [2019-10-13 22:59:30,761 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:59:30,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-13 22:59:30,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-13 22:59:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-13 22:59:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-13 22:59:30,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-13 22:59:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:30,795 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-13 22:59:30,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:59:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-13 22:59:30,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 22:59:30,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:30,796 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:30,997 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:30,998 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:30,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1699571622, now seen corresponding path program 1 times [2019-10-13 22:59:31,000 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:31,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790379154] [2019-10-13 22:59:31,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:31,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:31,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:31,014 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:59:31,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516004517] [2019-10-13 22:59:31,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:31,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 22:59:31,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:31,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:59:31,129 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 22:59:31,130 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:31,338 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 22:59:31,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790379154] [2019-10-13 22:59:31,338 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:59:31,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516004517] [2019-10-13 22:59:31,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [854730689] [2019-10-13 22:59:31,364 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-13 22:59:31,364 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:31,370 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:31,378 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:31,379 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:31,536 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-10-13 22:59:31,974 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-13 22:59:31,983 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:31,983 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:31,984 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~__return_60~0 0) (= 0 ~__return_60~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= ~__return_main~0 0)) [2019-10-13 22:59:31,984 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~__return_60~0 0) (<= 0 |old(~__return_60~0)|) (<= |old(~__return_60~0)| 0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (= |old(~__return_60~0)| ~__return_60~0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:31,985 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#(and (<= ~__return_60~0 0) (= 0 ~__return_60~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= ~__return_main~0 0)) [2019-10-13 22:59:31,986 INFO L193 IcfgInterpreter]: Reachable states at location L33 satisfy 81#(and (<= ~__return_60~0 0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= 0 main_~main__sum~0) (<= |old(~__return_60~0)| 0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:31,986 INFO L193 IcfgInterpreter]: Reachable states at location L44 satisfy 91#(and (<= ~__return_60~0 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (<= main_~__VERIFIER_assert__cond~0 0) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= ~__return_main~0 0) (not (<= main_~main__i~0 main_~main__n~0)) (= (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* main_~main__sum~0 2)) 1 0) main_~__tmp_1~0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= |old(~__return_60~0)| 0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (<= main_~__tmp_1~0 0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:31,987 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (<= ~__return_60~0 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (<= main_~__VERIFIER_assert__cond~0 0) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= ~__return_main~0 0) (not (<= main_~main__i~0 main_~main__n~0)) (= (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* main_~main__sum~0 2)) 1 0) main_~__tmp_1~0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= |old(~__return_60~0)| 0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (<= main_~__tmp_1~0 0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:31,988 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:31,988 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 100#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_60~0)| ~__return_60~0)) [2019-10-13 22:59:31,989 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~__return_60~0 0) (<= 0 |old(~__return_60~0)|) (<= |old(~__return_60~0)| 0) (<= main_~main__n~0 2147483647) (<= 0 ~__return_60~0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (= |old(~__return_60~0)| ~__return_60~0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:31,990 INFO L193 IcfgInterpreter]: Reachable states at location L20 satisfy 43#(and (<= ~__return_60~0 0) (<= 0 |old(~__return_60~0)|) (<= |old(~__return_60~0)| 0) (<= main_~main__n~0 2147483647) (<= 0 ~__return_60~0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (= |old(~__return_60~0)| ~__return_60~0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:31,993 INFO L193 IcfgInterpreter]: Reachable states at location L42 satisfy 86#(and (<= ~__return_60~0 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= ~__return_main~0 0) (not (<= main_~main__i~0 main_~main__n~0)) (= (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* main_~main__sum~0 2)) 1 0) main_~__tmp_1~0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= main_~__VERIFIER_assert__cond~0 1) (<= |old(~__return_60~0)| 0) (<= main_~__tmp_1~0 1) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:33,124 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-10-13 22:59:33,916 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-10-13 22:59:33,917 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-13 22:59:33,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 18 [2019-10-13 22:59:33,918 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433356353] [2019-10-13 22:59:33,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 22:59:33,920 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:33,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 22:59:33,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2019-10-13 22:59:33,922 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 18 states. [2019-10-13 22:59:35,299 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-10-13 22:59:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:35,310 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-10-13 22:59:35,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 22:59:35,316 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 11 [2019-10-13 22:59:35,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:35,317 INFO L225 Difference]: With dead ends: 16 [2019-10-13 22:59:35,317 INFO L226 Difference]: Without dead ends: 13 [2019-10-13 22:59:35,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2019-10-13 22:59:35,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-13 22:59:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-13 22:59:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-13 22:59:35,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-13 22:59:35,323 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-13 22:59:35,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:35,323 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-13 22:59:35,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 22:59:35,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-13 22:59:35,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 22:59:35,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:35,324 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:35,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:35,528 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:35,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:35,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1147050257, now seen corresponding path program 2 times [2019-10-13 22:59:35,529 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:35,529 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729554208] [2019-10-13 22:59:35,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:35,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:35,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:35,537 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:59:35,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339275313] [2019-10-13 22:59:35,537 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:35,593 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 22:59:35,594 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 22:59:35,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-13 22:59:35,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:35,667 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 22:59:35,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729554208] [2019-10-13 22:59:35,825 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:59:35,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339275313] [2019-10-13 22:59:35,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [948906832] [2019-10-13 22:59:35,827 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-13 22:59:35,827 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:35,827 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:35,828 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:35,828 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:35,855 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 12 for LOIs [2019-10-13 22:59:36,025 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-13 22:59:36,031 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:36,031 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:36,032 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~__return_60~0 0) (= 0 ~__return_60~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= ~__return_main~0 0)) [2019-10-13 22:59:36,032 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= 0 |old(~__return_60~0)|) (<= ~__return_60~0 0) (<= |old(~__return_60~0)| 0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (= |old(~__return_60~0)| ~__return_60~0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,032 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#(and (<= ~__return_60~0 0) (= 0 ~__return_60~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= ~__return_main~0 0)) [2019-10-13 22:59:36,033 INFO L193 IcfgInterpreter]: Reachable states at location L33 satisfy 81#(and (<= ~__return_60~0 0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= 0 main_~main__sum~0) (<= |old(~__return_60~0)| 0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,034 INFO L193 IcfgInterpreter]: Reachable states at location L44 satisfy 91#(and (<= ~__return_60~0 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (<= main_~__VERIFIER_assert__cond~0 0) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= ~__return_main~0 0) (not (<= main_~main__i~0 main_~main__n~0)) (= (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* main_~main__sum~0 2)) 1 0) main_~__tmp_1~0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= |old(~__return_60~0)| 0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (<= main_~__tmp_1~0 0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,034 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (<= ~__return_60~0 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (<= main_~__VERIFIER_assert__cond~0 0) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= ~__return_main~0 0) (not (<= main_~main__i~0 main_~main__n~0)) (= (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* main_~main__sum~0 2)) 1 0) main_~__tmp_1~0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= |old(~__return_60~0)| 0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (<= main_~__tmp_1~0 0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,035 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:36,035 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 100#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_60~0)| ~__return_60~0)) [2019-10-13 22:59:36,035 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= 0 |old(~__return_60~0)|) (<= ~__return_60~0 0) (<= |old(~__return_60~0)| 0) (<= main_~main__n~0 2147483647) (<= 0 ~__return_60~0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (= |old(~__return_60~0)| ~__return_60~0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,035 INFO L193 IcfgInterpreter]: Reachable states at location L20 satisfy 43#(and (<= 0 |old(~__return_60~0)|) (<= ~__return_60~0 0) (<= |old(~__return_60~0)| 0) (<= main_~main__n~0 2147483647) (<= 0 ~__return_60~0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (= |old(~__return_60~0)| ~__return_60~0) (<= ~__return_main~0 0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,036 INFO L193 IcfgInterpreter]: Reachable states at location L42 satisfy 86#(and (<= ~__return_60~0 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 ~__return_60~0) (<= 0 ~__return_main~0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= ~__return_main~0 0) (not (<= main_~main__i~0 main_~main__n~0)) (= (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* main_~main__sum~0 2)) 1 0) main_~__tmp_1~0) (<= 0 |old(~__return_60~0)|) (<= main_~main__n~0 1000) (<= main_~__VERIFIER_assert__cond~0 1) (<= |old(~__return_60~0)| 0) (<= main_~__tmp_1~0 1) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0) (= |old(~__return_60~0)| 0)) [2019-10-13 22:59:36,922 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-10-13 22:59:37,276 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-10-13 22:59:37,277 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-13 22:59:37,277 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 8] total 17 [2019-10-13 22:59:37,277 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206409083] [2019-10-13 22:59:37,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 22:59:37,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:37,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 22:59:37,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=215, Unknown=1, NotChecked=0, Total=272 [2019-10-13 22:59:37,279 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 17 states. [2019-10-13 22:59:38,338 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2019-10-13 22:59:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:38,340 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-10-13 22:59:38,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 22:59:38,340 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2019-10-13 22:59:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:38,340 INFO L225 Difference]: With dead ends: 15 [2019-10-13 22:59:38,341 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:59:38,341 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=172, Invalid=476, Unknown=2, NotChecked=0, Total=650 [2019-10-13 22:59:38,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:59:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:59:38,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:59:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:59:38,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-10-13 22:59:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:38,343 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:59:38,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 22:59:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:59:38,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:59:38,546 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:38,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:59:43,864 WARN L191 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2019-10-13 22:59:43,875 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_60~0)| ~__return_60~0)) [2019-10-13 22:59:43,875 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:43,875 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:43,875 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~__return_60~0) (= ~__return_main~0 0)) [2019-10-13 22:59:43,875 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:59:43,876 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:59:43,876 INFO L439 ceAbstractionStarter]: At program point L33(lines 25 54) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (and (<= main_~main__n~0 1000) (<= 1 main_~main__i~0) (<= 1 main_~main__n~0) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* 2 main_~main__sum~0)) (<= main_~main__i~0 main_~main__n~0)) (forall ((main_~main__n~0 Int)) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 main_~main__sum~0) (* 2 main_~main__i~0))) (< main_~main__i~0 main_~main__n~0) (< main_~main__n~0 main_~main__i~0))) (= |old(~__return_60~0)| ~__return_60~0)) (not (= |old(~__return_60~0)| 0))) [2019-10-13 22:59:43,876 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 56) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (= |old(~__return_60~0)| ~__return_60~0) (not (= |old(~__return_60~0)| 0))) [2019-10-13 22:59:43,876 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 56) no Hoare annotation was computed. [2019-10-13 22:59:43,876 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 54) no Hoare annotation was computed. [2019-10-13 22:59:43,876 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 55) no Hoare annotation was computed. [2019-10-13 22:59:43,877 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-13 22:59:43,877 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 56) no Hoare annotation was computed. [2019-10-13 22:59:43,877 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-13 22:59:43,877 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 51) no Hoare annotation was computed. [2019-10-13 22:59:43,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,885 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,885 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,886 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,898 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,899 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,899 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,899 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:59:43 BoogieIcfgContainer [2019-10-13 22:59:43,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:59:43,913 INFO L168 Benchmark]: Toolchain (without parser) took 14289.75 ms. Allocated memory was 138.9 MB in the beginning and 248.0 MB in the end (delta: 109.1 MB). Free memory was 101.9 MB in the beginning and 108.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:43,914 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 22:59:43,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.87 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:43,915 INFO L168 Benchmark]: Boogie Preprocessor took 133.34 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 180.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:43,916 INFO L168 Benchmark]: RCFGBuilder took 246.19 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 169.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:43,917 INFO L168 Benchmark]: TraceAbstraction took 13628.06 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 168.7 MB in the beginning and 108.9 MB in the end (delta: 59.8 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:43,920 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 138.9 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 277.87 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.34 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 180.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 246.19 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 169.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13628.06 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 168.7 MB in the beginning and 108.9 MB in the end (delta: 59.8 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 25]: Loop Invariant [2019-10-13 22:59:43,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:43,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] Derived loop invariant: (!(0 == __return_main) || (((((main__n <= 1000 && 1 <= main__i) && 1 <= main__n) && (main__n * (main__n + 1) == 2 * main__sum || main__i <= main__n)) && (forall main_~main__n~0 : int :: (main_~main__n~0 * (main_~main__n~0 + 1) == 2 * main__sum + 2 * main__i || main__i < main_~main__n~0) || main_~main__n~0 < main__i)) && \old(__return_60) == __return_60)) || !(\old(__return_60) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 13.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, HoareTripleCheckerStatistics: 26 SDtfs, 74 SDslu, 66 SDs, 0 SdLazy, 120 SolverSat, 37 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 83 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 2 QuantifiedInterpolants, 2244 SizeOfPredicates, 14 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 839, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 40, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME[ms]: 44, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 7, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 3, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 37, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 12, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 46, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 36, DOMAIN_JOIN_TIME[ms]: 488, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 144, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 20, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 8, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 356, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 354, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 35, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 34, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 30, DAG_COMPRESSION_PROCESSED_NODES: 124, DAG_COMPRESSION_RETAINED_NODES: 72, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...