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 -i ../../../trunk/examples/svcomp/loops/sum01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:16:44,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:16:44,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:16:44,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:16:44,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:16:44,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:16:44,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:16:44,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:16:44,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:16:44,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:16:44,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:16:44,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:16:44,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:16:44,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:16:44,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:16:44,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:16:44,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:16:44,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:16:44,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:16:44,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:16:44,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:16:44,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:16:44,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:16:44,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:16:44,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:16:44,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:16:44,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:16:44,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:16:44,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:16:44,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:16:44,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:16:44,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:16:44,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:16:44,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:16:44,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:16:44,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:16:44,802 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 [2019-10-14 23:16:44,820 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:16:44,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:16:44,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:16:44,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:16:44,823 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:16:44,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:16:44,824 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:16:44,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:16:44,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:16:44,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:16:44,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:16:44,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:16:44,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:16:44,826 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:16:44,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:16:44,826 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:16:44,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:16:44,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:16:44,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:16:44,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:16:44,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:16:44,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:16:44,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:16:44,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:16:44,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:16:44,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:16:44,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:16:44,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:16:44,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:16:45,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:16:45,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:16:45,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:16:45,122 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:16:45,122 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:16:45,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01-2.i [2019-10-14 23:16:45,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c72356163/517e1ab52e31413e9d06582278e5776e/FLAG426f6a90c [2019-10-14 23:16:45,660 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:16:45,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01-2.i [2019-10-14 23:16:45,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c72356163/517e1ab52e31413e9d06582278e5776e/FLAG426f6a90c [2019-10-14 23:16:46,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c72356163/517e1ab52e31413e9d06582278e5776e [2019-10-14 23:16:46,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:16:46,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:16:46,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:16:46,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:16:46,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:16:46,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7097ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46, skipping insertion in model container [2019-10-14 23:16:46,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,119 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:16:46,135 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:16:46,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:16:46,363 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:16:46,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:16:46,391 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:16:46,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46 WrapperNode [2019-10-14 23:16:46,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:16:46,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:16:46,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:16:46,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:16:46,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (1/1) ... [2019-10-14 23:16:46,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:16:46,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:16:46,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:16:46,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:16:46,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (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 [2019-10-14 23:16:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:16:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:16:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:16:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:16:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:16:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:16:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:16:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:16:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:16:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:16:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:16:46,711 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:16:46,711 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:16:46,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:16:46 BoogieIcfgContainer [2019-10-14 23:16:46,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:16:46,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:16:46,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:16:46,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:16:46,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:16:46" (1/3) ... [2019-10-14 23:16:46,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500c71d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:16:46, skipping insertion in model container [2019-10-14 23:16:46,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:46" (2/3) ... [2019-10-14 23:16:46,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500c71d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:16:46, skipping insertion in model container [2019-10-14 23:16:46,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:16:46" (3/3) ... [2019-10-14 23:16:46,720 INFO L109 eAbstractionObserver]: Analyzing ICFG sum01-2.i [2019-10-14 23:16:46,729 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:16:46,736 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:16:46,748 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:16:46,778 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:16:46,778 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:16:46,778 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:16:46,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:16:46,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:16:46,779 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:16:46,779 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:16:46,779 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:16:46,802 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-14 23:16:46,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-14 23:16:46,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:16:46,812 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:16:46,814 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:16:46,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:16:46,822 INFO L82 PathProgramCache]: Analyzing trace with hash 579653156, now seen corresponding path program 1 times [2019-10-14 23:16:46,834 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:16:46,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899796663] [2019-10-14 23:16:46,835 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:46,835 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:46,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:16:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:46,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899796663] [2019-10-14 23:16:46,976 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:16:46,976 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:16:46,977 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752816540] [2019-10-14 23:16:46,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:16:46,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:16:46,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:16:46,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:16:46,992 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-14 23:16:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:16:47,013 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-10-14 23:16:47,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:16:47,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-14 23:16:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:16:47,023 INFO L225 Difference]: With dead ends: 30 [2019-10-14 23:16:47,023 INFO L226 Difference]: Without dead ends: 13 [2019-10-14 23:16:47,026 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:16:47,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-14 23:16:47,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-14 23:16:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-14 23:16:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-14 23:16:47,062 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-14 23:16:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:16:47,062 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-14 23:16:47,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:16:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-14 23:16:47,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-14 23:16:47,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:16:47,063 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:16:47,064 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:16:47,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:16:47,064 INFO L82 PathProgramCache]: Analyzing trace with hash 574112030, now seen corresponding path program 1 times [2019-10-14 23:16:47,065 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:16:47,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439675636] [2019-10-14 23:16:47,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:47,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:47,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:16:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:47,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439675636] [2019-10-14 23:16:47,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:16:47,169 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:16:47,170 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729371172] [2019-10-14 23:16:47,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:16:47,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:16:47,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:16:47,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:16:47,173 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-10-14 23:16:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:16:47,241 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-14 23:16:47,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:16:47,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-14 23:16:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:16:47,242 INFO L225 Difference]: With dead ends: 19 [2019-10-14 23:16:47,243 INFO L226 Difference]: Without dead ends: 14 [2019-10-14 23:16:47,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:16:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-14 23:16:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-14 23:16:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-14 23:16:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-14 23:16:47,249 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-10-14 23:16:47,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:16:47,249 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-14 23:16:47,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:16:47,250 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-14 23:16:47,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-14 23:16:47,251 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:16:47,251 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:16:47,251 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:16:47,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:16:47,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1164206820, now seen corresponding path program 1 times [2019-10-14 23:16:47,252 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:16:47,252 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013860759] [2019-10-14 23:16:47,252 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:47,253 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:47,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:16:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:47,516 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013860759] [2019-10-14 23:16:47,516 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761252460] [2019-10-14 23:16:47,517 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 [2019-10-14 23:16:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:47,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-14 23:16:47,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:16:47,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:16:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:47,749 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:16:47,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2019-10-14 23:16:47,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595054260] [2019-10-14 23:16:47,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-14 23:16:47,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:16:47,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-14 23:16:47,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:16:47,752 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 15 states. [2019-10-14 23:16:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:16:47,945 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-10-14 23:16:47,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:16:47,946 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 13 [2019-10-14 23:16:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:16:47,947 INFO L225 Difference]: With dead ends: 24 [2019-10-14 23:16:47,947 INFO L226 Difference]: Without dead ends: 18 [2019-10-14 23:16:47,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:16:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-14 23:16:47,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-14 23:16:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-14 23:16:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-14 23:16:47,959 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 13 [2019-10-14 23:16:47,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:16:47,960 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-14 23:16:47,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-14 23:16:47,960 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-14 23:16:47,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:16:47,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:16:47,961 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:16:48,166 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:16:48,167 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:16:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:16:48,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2033115496, now seen corresponding path program 2 times [2019-10-14 23:16:48,167 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:16:48,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174632765] [2019-10-14 23:16:48,168 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:48,168 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:48,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:16:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-14 23:16:48,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174632765] [2019-10-14 23:16:48,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351082493] [2019-10-14 23:16:48,400 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2019-10-14 23:16:48,425 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-14 23:16:48,425 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:16:48,426 WARN L254 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-14 23:16:48,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:16:48,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:16:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:48,668 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:16:48,669 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 20 [2019-10-14 23:16:48,669 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086409443] [2019-10-14 23:16:48,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:16:48,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:16:48,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:16:48,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:16:48,671 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 20 states. [2019-10-14 23:16:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:16:49,041 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-14 23:16:49,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:16:49,042 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 17 [2019-10-14 23:16:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:16:49,043 INFO L225 Difference]: With dead ends: 21 [2019-10-14 23:16:49,043 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:16:49,044 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2019-10-14 23:16:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:16:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:16:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:16:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:16:49,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-14 23:16:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:16:49,045 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:16:49,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-14 23:16:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:16:49,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:16:49,250 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:16:49,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:16:49,370 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-14 23:16:49,370 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:16:49,370 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:16:49,371 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:16:49,371 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:16:49,371 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:16:49,371 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2019-10-14 23:16:49,371 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2019-10-14 23:16:49,371 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-10-14 23:16:49,371 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 18) no Hoare annotation was computed. [2019-10-14 23:16:49,372 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-10-14 23:16:49,372 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: (or (and (= main_~i~0 1) (<= main_~sn~0 0) (<= 0 main_~sn~0)) (let ((.cse1 (* 2 main_~i~0)) (.cse0 (+ main_~sn~0 2))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< main_~sn~0 (+ (* 2 main_~n~0) 1))))) [2019-10-14 23:16:49,373 INFO L439 ceAbstractionStarter]: At program point L14-4(lines 14 16) the Hoare annotation is: (or (= (* 2 main_~n~0) main_~sn~0) (= 0 main_~sn~0)) [2019-10-14 23:16:49,373 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-14 23:16:49,373 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-14 23:16:49,374 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-14 23:16:49,374 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-14 23:16:49,374 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-14 23:16:49,374 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-14 23:16:49,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:16:49 BoogieIcfgContainer [2019-10-14 23:16:49,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:16:49,400 INFO L168 Benchmark]: Toolchain (without parser) took 3292.79 ms. Allocated memory was 139.5 MB in the beginning and 242.2 MB in the end (delta: 102.8 MB). Free memory was 104.1 MB in the beginning and 208.8 MB in the end (delta: -104.7 MB). Peak memory consumption was 113.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:49,402 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-14 23:16:49,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.77 ms. Allocated memory is still 139.5 MB. Free memory was 103.9 MB in the beginning and 94.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:49,404 INFO L168 Benchmark]: Boogie Preprocessor took 105.54 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.4 MB in the beginning and 181.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:49,407 INFO L168 Benchmark]: RCFGBuilder took 213.94 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 169.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:49,410 INFO L168 Benchmark]: TraceAbstraction took 2681.22 ms. Allocated memory was 202.4 MB in the beginning and 242.2 MB in the end (delta: 39.8 MB). Free memory was 169.1 MB in the beginning and 208.8 MB in the end (delta: -39.7 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:49,419 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.77 ms. Allocated memory is still 139.5 MB. Free memory was 103.9 MB in the beginning and 94.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.54 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.4 MB in the beginning and 181.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 213.94 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 169.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2681.22 ms. Allocated memory was 202.4 MB in the beginning and 242.2 MB in the end (delta: 39.8 MB). Free memory was 169.1 MB in the beginning and 208.8 MB in the end (delta: -39.7 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 14]: Loop Invariant Derived loop invariant: ((i == 1 && sn <= 0) && 0 <= sn) || ((sn + 2 <= 2 * i && 2 * i <= sn + 2) && sn < 2 * n + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 45 SDtfs, 11 SDslu, 168 SDs, 0 SdLazy, 211 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 47 HoareAnnotationTreeSize, 12 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 6312 SizeOfPredicates, 6 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...