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/loop-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:58:47,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:58:47,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:58:47,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 12:58:47,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:58:47,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:58:47,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:58:47,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:58:47,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:58:47,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:58:47,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:58:47,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:58:47,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:58:47,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:58:47,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:58:47,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:58:47,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:58:47,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:58:47,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:58:47,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:58:47,422 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 [2019-09-20 12:58:47,448 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:58:47,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:58:47,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:58:47,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:58:47,452 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:58:47,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:58:47,452 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:58:47,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:58:47,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:58:47,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:58:47,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:58:47,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:58:47,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:58:47,455 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:58:47,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:58:47,456 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:58:47,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:58:47,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:58:47,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:58:47,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:58:47,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:58:47,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:58:47,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:58:47,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:58:47,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:58:47,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:58:47,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:58:47,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:58:47,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:58:47,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:58:47,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:58:47,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:58:47,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:58:47,538 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:58:47,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2019-09-20 12:58:47,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cdabc377/2af57bf4982344eb9252f275fe5117c2/FLAGd30f8ec2b [2019-09-20 12:58:48,086 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:58:48,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2019-09-20 12:58:48,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cdabc377/2af57bf4982344eb9252f275fe5117c2/FLAGd30f8ec2b [2019-09-20 12:58:48,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cdabc377/2af57bf4982344eb9252f275fe5117c2 [2019-09-20 12:58:48,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:58:48,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:58:48,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:48,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:58:48,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:58:48,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69fdeea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48, skipping insertion in model container [2019-09-20 12:58:48,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,449 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:58:48,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:58:48,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:48,636 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:58:48,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:48,675 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:58:48,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48 WrapperNode [2019-09-20 12:58:48,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:48,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:58:48,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:58:48,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:58:48,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (1/1) ... [2019-09-20 12:58:48,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:58:48,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:58:48,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:58:48,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:58:48,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (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 [2019-09-20 12:58:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:58:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:58:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:58:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:58:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:58:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 12:58:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:58:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:58:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:58:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:58:49,014 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:58:49,015 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 12:58:49,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:49 BoogieIcfgContainer [2019-09-20 12:58:49,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:58:49,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:58:49,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:58:49,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:58:49,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:58:48" (1/3) ... [2019-09-20 12:58:49,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11891e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:49, skipping insertion in model container [2019-09-20 12:58:49,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:48" (2/3) ... [2019-09-20 12:58:49,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11891e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:49, skipping insertion in model container [2019-09-20 12:58:49,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:49" (3/3) ... [2019-09-20 12:58:49,024 INFO L109 eAbstractionObserver]: Analyzing ICFG eq2.c [2019-09-20 12:58:49,034 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:58:49,040 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:58:49,057 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:58:49,087 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:58:49,088 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:58:49,088 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:58:49,088 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:58:49,089 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:58:49,089 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:58:49,089 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:58:49,089 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:58:49,089 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:58:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-20 12:58:49,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 12:58:49,114 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:49,115 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:49,118 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2019-09-20 12:58:49,126 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:49,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:49,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:49,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:49,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:49,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:49,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:58:49,472 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:58:49,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:58:49,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:58:49,525 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2019-09-20 12:58:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:49,683 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-09-20 12:58:49,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 12:58:49,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-20 12:58:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:49,693 INFO L225 Difference]: With dead ends: 28 [2019-09-20 12:58:49,694 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:58:49,698 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:58:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:58:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:58:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:58:49,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-09-20 12:58:49,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:49,728 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:58:49,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:58:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:58:49,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:58:49,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:58:49,793 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 12:58:49,793 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:49,794 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:49,794 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:58:49,794 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:58:49,794 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:58:49,795 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 20) the Hoare annotation is: true [2019-09-20 12:58:49,795 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 20) no Hoare annotation was computed. [2019-09-20 12:58:49,795 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-09-20 12:58:49,795 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 20) no Hoare annotation was computed. [2019-09-20 12:58:49,796 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse3 (div main_~y~0 4294967296)) (.cse2 (div main_~z~0 4294967296))) (let ((.cse1 (+ main_~y~0 (* 4294967296 .cse2))) (.cse0 (* 4294967296 .cse3))) (and (<= (+ .cse0 main_~z~0) .cse1) (< .cse1 (+ .cse0 main_~z~0 1)) (<= .cse2 .cse3)))) [2019-09-20 12:58:49,796 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse3 (div main_~y~0 4294967296)) (.cse2 (div main_~z~0 4294967296))) (let ((.cse1 (+ main_~y~0 (* 4294967296 .cse2))) (.cse0 (* 4294967296 .cse3))) (and (<= (+ .cse0 main_~z~0) .cse1) (< .cse1 (+ .cse0 main_~z~0 1)) (<= .cse2 .cse3)))) [2019-09-20 12:58:49,797 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-20 12:58:49,797 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-20 12:58:49,798 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:58:49,798 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-20 12:58:49,798 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-20 12:58:49,798 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:58:49,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:58:49 BoogieIcfgContainer [2019-09-20 12:58:49,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:58:49,818 INFO L168 Benchmark]: Toolchain (without parser) took 1381.31 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 86.9 MB in the beginning and 128.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:49,819 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:58:49,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.67 ms. Allocated memory is still 130.5 MB. Free memory was 86.7 MB in the beginning and 77.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:49,821 INFO L168 Benchmark]: Boogie Preprocessor took 116.63 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 77.0 MB in the beginning and 175.0 MB in the end (delta: -98.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:49,822 INFO L168 Benchmark]: RCFGBuilder took 221.80 ms. Allocated memory is still 198.2 MB. Free memory was 175.0 MB in the beginning and 163.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:49,823 INFO L168 Benchmark]: TraceAbstraction took 797.13 ms. Allocated memory is still 198.2 MB. Free memory was 163.2 MB in the beginning and 128.2 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:49,828 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.67 ms. Allocated memory is still 130.5 MB. Free memory was 86.7 MB in the beginning and 77.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.63 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 77.0 MB in the beginning and 175.0 MB in the end (delta: -98.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 221.80 ms. Allocated memory is still 198.2 MB. Free memory was 175.0 MB in the beginning and 163.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 797.13 ms. Allocated memory is still 198.2 MB. Free memory was 163.2 MB in the beginning and 128.2 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (4294967296 * (y / 4294967296) + z <= y + 4294967296 * (z / 4294967296) && y + 4294967296 * (z / 4294967296) < 4294967296 * (y / 4294967296) + z + 1) && z / 4294967296 <= y / 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 7 SDslu, 29 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 83 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...