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.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:59:27,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:59:27,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:59:27,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:59:27,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:59:27,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:59:27,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:59:27,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:59:27,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:59:27,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:59:27,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:59:27,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:59:27,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:59:27,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:59:27,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:59:27,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:59:27,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:59:27,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:59:27,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:59:27,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:59:27,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:59:27,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:59:27,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:59:27,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:59:27,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 22:59:27,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:59:27,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:59:27,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:59:27,801 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 22:59:27,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:59:27,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:59:27,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:59:27,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:59:27,827 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:59:27,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:59:27,827 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:59:27,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:59:27,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:59:27,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:59:27,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:59:27,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:59:27,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:59:27,828 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:59:27,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:59:27,829 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:59:27,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:59:27,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:59:27,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:59:27,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:59:27,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:59:27,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:59:27,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:59:27,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:59:27,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:59:27,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:59:27,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:59:27,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:59:27,832 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 22:59:28,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:59:28,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:59:28,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:59:28,157 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:59:28,158 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:59:28,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c [2019-10-13 22:59:28,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3e16bf2/f2fde599881a45feb00ccb3c8b7d31e9/FLAG30a60e3e5 [2019-10-13 22:59:28,642 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:59:28,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c [2019-10-13 22:59:28,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3e16bf2/f2fde599881a45feb00ccb3c8b7d31e9/FLAG30a60e3e5 [2019-10-13 22:59:28,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3e16bf2/f2fde599881a45feb00ccb3c8b7d31e9 [2019-10-13 22:59:28,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:59:28,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:59:28,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:28,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:59:29,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:59:29,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:28" (1/1) ... [2019-10-13 22:59:29,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0b1e0b 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 22:59:29,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:28" (1/1) ... [2019-10-13 22:59:29,015 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:59:29,039 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:59:29,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:29,290 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:59:29,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:29,316 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:59:29,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:29 WrapperNode [2019-10-13 22:59:29,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:29,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:59:29,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:59:29,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:59:29,328 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 22:59:29,329 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 22:59:29,415 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 22:59:29,415 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 22:59:29,419 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 22:59:29,422 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 22:59:29,423 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 22:59:29,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:59:29,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:59:29,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:59:29,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:59:29,432 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 22:59:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:59:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:59:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:59:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:59:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:59:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 22:59:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:59:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:59:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:59:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:59:29,670 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:59:29,670 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:59:29,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:29 BoogieIcfgContainer [2019-10-13 22:59:29,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:59:29,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:59:29,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:59:29,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:59:29,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:59:28" (1/3) ... [2019-10-13 22:59:29,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13369fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:29, skipping insertion in model container [2019-10-13 22:59:29,677 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 22:59:29,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13369fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:29, skipping insertion in model container [2019-10-13 22:59:29,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:29" (3/3) ... [2019-10-13 22:59:29,679 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2019-10-13 22:59:29,689 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:59:29,697 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:59:29,709 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:59:29,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:59:29,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:59:29,763 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:59:29,765 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:59:29,765 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:59:29,766 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:59:29,766 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:59:29,766 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:59:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-13 22:59:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 22:59:29,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:29,805 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:29,807 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:29,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1330646415, now seen corresponding path program 1 times [2019-10-13 22:59:29,823 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:29,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721034048] [2019-10-13 22:59:29,824 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:29,824 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:29,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:29,915 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:59:29,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564001739] [2019-10-13 22:59:29,916 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 22:59:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:29,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 22:59:29,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:30,025 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 22:59:30,026 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:30,054 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 22:59:30,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721034048] [2019-10-13 22:59:30,055 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:59:30,055 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564001739] [2019-10-13 22:59:30,056 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:59:30,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-10-13 22:59:30,056 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882079191] [2019-10-13 22:59:30,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:59:30,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:30,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:59:30,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:59:30,078 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-10-13 22:59:30,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:30,142 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-10-13 22:59:30,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:59:30,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-13 22:59:30,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:30,155 INFO L225 Difference]: With dead ends: 25 [2019-10-13 22:59:30,155 INFO L226 Difference]: Without dead ends: 12 [2019-10-13 22:59:30,159 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 22:59:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-13 22:59:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-13 22:59:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-13 22:59:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-13 22:59:30,200 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-13 22:59:30,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:30,201 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-13 22:59:30,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:59:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-13 22:59:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 22:59:30,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:30,202 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:30,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:30,407 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:30,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:30,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1699571622, now seen corresponding path program 1 times [2019-10-13 22:59:30,408 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:30,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515807207] [2019-10-13 22:59:30,408 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:30,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:30,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:30,426 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:59:30,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828483276] [2019-10-13 22:59:30,427 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 22:59:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:30,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 22:59:30,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:30,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:59:30,537 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 22:59:30,537 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:30,751 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 22:59:30,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515807207] [2019-10-13 22:59:30,752 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:59:30,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828483276] [2019-10-13 22:59:30,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [234460325] [2019-10-13 22:59:30,786 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-13 22:59:30,786 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:30,812 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:30,831 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:30,832 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:30,975 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-10-13 22:59:31,391 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-13 22:59:31,397 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:31,397 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:31,398 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~__return_80~0 0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0) (= 0 ~__return_80~0)) [2019-10-13 22:59:31,398 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= |old(~__return_80~0)| 0) (<= ~__return_80~0 0) (= |old(~__return_80~0)| ~__return_80~0) (<= 0 |old(~__return_80~0)|) (<= |old(~__return_80~0)| 0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:31,398 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (= |old(~__return_80~0)| 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= 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) (<= 0 ~__return_80~0) (<= ~__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) (<= main_~main__n~0 1000) (<= ~__return_80~0 0) (<= |old(~__return_80~0)| 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)) [2019-10-13 22:59:31,399 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#(and (<= ~__return_80~0 0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0) (= 0 ~__return_80~0)) [2019-10-13 22:59:31,399 INFO L193 IcfgInterpreter]: Reachable states at location L33 satisfy 81#(and (= |old(~__return_80~0)| 0) (<= main_~main__n~0 1000) (<= 0 main_~main__sum~0) (<= ~__return_80~0 0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= |old(~__return_80~0)| 0) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:31,399 INFO L193 IcfgInterpreter]: Reachable states at location L44 satisfy 91#(and (= |old(~__return_80~0)| 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= 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) (<= 0 ~__return_80~0) (<= ~__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) (<= main_~main__n~0 1000) (<= ~__return_80~0 0) (<= |old(~__return_80~0)| 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)) [2019-10-13 22:59:31,399 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:31,400 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 100#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_80~0)| ~__return_80~0)) [2019-10-13 22:59:31,400 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (= |old(~__return_80~0)| 0) (<= ~__return_80~0 0) (<= main_~main__n~0 2147483647) (= |old(~__return_80~0)| ~__return_80~0) (<= 0 |old(~__return_80~0)|) (<= |old(~__return_80~0)| 0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:31,400 INFO L193 IcfgInterpreter]: Reachable states at location L20 satisfy 43#(and (= |old(~__return_80~0)| 0) (<= ~__return_80~0 0) (<= main_~main__n~0 2147483647) (= |old(~__return_80~0)| ~__return_80~0) (<= 0 |old(~__return_80~0)|) (<= |old(~__return_80~0)| 0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:31,401 INFO L193 IcfgInterpreter]: Reachable states at location L42 satisfy 86#(and (= |old(~__return_80~0)| 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= 0 ~__return_main~0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= 0 ~__return_80~0) (<= ~__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) (<= main_~main__n~0 1000) (<= main_~__VERIFIER_assert__cond~0 1) (<= ~__return_80~0 0) (<= main_~__tmp_1~0 1) (<= |old(~__return_80~0)| 0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0)) [2019-10-13 22:59:32,306 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2019-10-13 22:59:32,764 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 29 [2019-10-13 22:59:32,765 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-13 22:59:32,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 18 [2019-10-13 22:59:32,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757367727] [2019-10-13 22:59:32,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 22:59:32,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:32,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 22:59:32,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2019-10-13 22:59:32,770 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 18 states. [2019-10-13 22:59:34,680 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2019-10-13 22:59:34,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:34,687 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-10-13 22:59:34,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 22:59:34,688 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 11 [2019-10-13 22:59:34,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:34,690 INFO L225 Difference]: With dead ends: 16 [2019-10-13 22:59:34,690 INFO L226 Difference]: Without dead ends: 13 [2019-10-13 22:59:34,691 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2019-10-13 22:59:34,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-13 22:59:34,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-13 22:59:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-13 22:59:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-13 22:59:34,700 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-13 22:59:34,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:34,701 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-13 22:59:34,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 22:59:34,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-13 22:59:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 22:59:34,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:34,702 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:34,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:34,908 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:34,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:34,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1147050257, now seen corresponding path program 2 times [2019-10-13 22:59:34,908 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:34,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438491834] [2019-10-13 22:59:34,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:34,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:34,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:34,919 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:59:34,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156392420] [2019-10-13 22:59:34,919 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 22:59:34,953 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 22:59:34,953 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 22:59:34,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-13 22:59:34,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:34,995 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 22:59:34,996 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:37,160 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 22:59:37,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438491834] [2019-10-13 22:59:37,160 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:59:37,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156392420] [2019-10-13 22:59:37,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1952749892] [2019-10-13 22:59:37,162 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-13 22:59:37,162 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:37,162 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:37,163 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:37,163 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:37,204 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 12 for LOIs [2019-10-13 22:59:37,418 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-13 22:59:37,424 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:37,425 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:37,425 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~__return_80~0 0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0) (= 0 ~__return_80~0)) [2019-10-13 22:59:37,425 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= |old(~__return_80~0)| 0) (<= ~__return_80~0 0) (<= 0 |old(~__return_80~0)|) (= |old(~__return_80~0)| ~__return_80~0) (<= |old(~__return_80~0)| 0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:37,426 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (= |old(~__return_80~0)| 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= 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) (<= 0 ~__return_80~0) (<= ~__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) (<= main_~main__n~0 1000) (<= ~__return_80~0 0) (<= |old(~__return_80~0)| 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)) [2019-10-13 22:59:37,426 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#(and (<= ~__return_80~0 0) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0) (= 0 ~__return_80~0)) [2019-10-13 22:59:37,427 INFO L193 IcfgInterpreter]: Reachable states at location L33 satisfy 81#(and (= |old(~__return_80~0)| 0) (<= main_~main__n~0 1000) (<= 0 main_~main__sum~0) (<= ~__return_80~0 0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= |old(~__return_80~0)| 0) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:37,427 INFO L193 IcfgInterpreter]: Reachable states at location L44 satisfy 91#(and (= |old(~__return_80~0)| 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= 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) (<= 0 ~__return_80~0) (<= ~__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) (<= main_~main__n~0 1000) (<= ~__return_80~0 0) (<= |old(~__return_80~0)| 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)) [2019-10-13 22:59:37,427 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:37,427 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 100#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_80~0)| ~__return_80~0)) [2019-10-13 22:59:37,428 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (= |old(~__return_80~0)| 0) (<= ~__return_80~0 0) (<= main_~main__n~0 2147483647) (<= 0 |old(~__return_80~0)|) (= |old(~__return_80~0)| ~__return_80~0) (<= |old(~__return_80~0)| 0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:37,428 INFO L193 IcfgInterpreter]: Reachable states at location L20 satisfy 43#(and (= |old(~__return_80~0)| 0) (<= ~__return_80~0 0) (<= main_~main__n~0 2147483647) (<= 0 |old(~__return_80~0)|) (= |old(~__return_80~0)| ~__return_80~0) (<= |old(~__return_80~0)| 0) (<= 0 (+ main_~main__n~0 2147483648)) (<= 0 ~__return_main~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 ~__return_80~0) (<= ~__return_main~0 0)) [2019-10-13 22:59:37,428 INFO L193 IcfgInterpreter]: Reachable states at location L42 satisfy 86#(and (= |old(~__return_80~0)| 0) (<= 0 main_~main__sum~0) (<= 1 main_~main__i~0) (<= 0 |old(~__return_80~0)|) (<= 0 ~__return_main~0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (<= 0 ~__return_80~0) (<= ~__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) (<= main_~main__n~0 1000) (<= main_~__VERIFIER_assert__cond~0 1) (<= ~__return_80~0 0) (<= main_~__tmp_1~0 1) (<= |old(~__return_80~0)| 0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= 1 main_~main__n~0) (= ~__return_main~0 0) (<= 0 main_~__tmp_1~0)) [2019-10-13 22:59:38,338 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2019-10-13 22:59:38,802 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 29 [2019-10-13 22:59:38,804 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-13 22:59:38,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 8] total 17 [2019-10-13 22:59:38,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910258554] [2019-10-13 22:59:38,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 22:59:38,806 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:38,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 22:59:38,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=213, Unknown=3, NotChecked=0, Total=272 [2019-10-13 22:59:38,806 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 17 states. [2019-10-13 22:59:39,188 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-10-13 22:59:39,377 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-10-13 22:59:39,681 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-10-13 22:59:44,194 WARN L191 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-13 22:59:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:44,195 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-10-13 22:59:44,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 22:59:44,196 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2019-10-13 22:59:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:44,196 INFO L225 Difference]: With dead ends: 15 [2019-10-13 22:59:44,197 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:59:44,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=172, Invalid=474, Unknown=4, NotChecked=0, Total=650 [2019-10-13 22:59:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:59:44,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:59:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:59:44,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:59:44,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-10-13 22:59:44,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:44,199 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:59:44,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 22:59:44,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:59:44,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:59:44,399 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:44,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:59:46,675 WARN L191 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2019-10-13 22:59:46,682 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_80~0)| ~__return_80~0)) [2019-10-13 22:59:46,682 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:46,682 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:46,683 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~__return_main~0 0) (= 0 ~__return_80~0)) [2019-10-13 22:59:46,683 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:59:46,683 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:59:46,683 INFO L439 ceAbstractionStarter]: At program point L33(lines 25 54) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (not (<= 0 |old(~__return_80~0)|)) (not (<= |old(~__return_80~0)| 0)) (and (<= 1 main_~main__i~0) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* 2 main_~main__sum~0)) (<= main_~main__i~0 main_~main__n~0)) (<= 0 ~__return_80~0) (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))) (<= main_~main__n~0 1000) (<= ~__return_80~0 0) (<= 1 main_~main__n~0))) [2019-10-13 22:59:46,684 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 56) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (= |old(~__return_80~0)| ~__return_80~0) (not (<= 0 |old(~__return_80~0)|)) (not (<= |old(~__return_80~0)| 0))) [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 56) no Hoare annotation was computed. [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 54) no Hoare annotation was computed. [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 55) no Hoare annotation was computed. [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 56) no Hoare annotation was computed. [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-13 22:59:46,684 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 51) no Hoare annotation was computed. [2019-10-13 22:59:46,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:59:46 BoogieIcfgContainer [2019-10-13 22:59:46,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:59:46,709 INFO L168 Benchmark]: Toolchain (without parser) took 17713.66 ms. Allocated memory was 139.5 MB in the beginning and 266.9 MB in the end (delta: 127.4 MB). Free memory was 103.1 MB in the beginning and 219.8 MB in the end (delta: -116.8 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:46,710 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 22:59:46,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.71 ms. Allocated memory is still 139.5 MB. Free memory was 102.8 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:46,713 INFO L168 Benchmark]: Boogie Preprocessor took 112.47 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 180.9 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:46,714 INFO L168 Benchmark]: RCFGBuilder took 241.05 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 168.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:46,715 INFO L168 Benchmark]: TraceAbstraction took 17034.85 ms. Allocated memory was 201.9 MB in the beginning and 266.9 MB in the end (delta: 65.0 MB). Free memory was 168.8 MB in the beginning and 219.8 MB in the end (delta: -51.0 MB). Peak memory consumption was 118.8 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:46,719 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 319.71 ms. Allocated memory is still 139.5 MB. Free memory was 102.8 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.47 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 180.9 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.05 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 168.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17034.85 ms. Allocated memory was 201.9 MB in the beginning and 266.9 MB in the end (delta: 65.0 MB). Free memory was 168.8 MB in the beginning and 219.8 MB in the end (delta: -51.0 MB). Peak memory consumption was 118.8 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 22:59:46,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-10-13 22:59:46,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] Derived loop invariant: ((!(0 == __return_main) || !(0 <= \old(__return_80))) || !(\old(__return_80) <= 0)) || ((((((1 <= main__i && (main__n * (main__n + 1) == 2 * main__sum || main__i <= main__n)) && 0 <= __return_80) && (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)) && main__n <= 1000) && __return_80 <= 0) && 1 <= main__n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 16.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, HoareTripleCheckerStatistics: 26 SDtfs, 74 SDslu, 66 SDs, 0 SdLazy, 121 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 11.6s 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, 94 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 170 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.5s 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]: 882, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 40, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME[ms]: 31, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 9, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 5, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 29, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 9, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 46, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 36, DOMAIN_JOIN_TIME[ms]: 496, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 181, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 26, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 410, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 408, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 39, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 39, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 26, 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...