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/ldv-regression/test17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:34:48,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:34:48,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:34:48,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:34:48,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:34:48,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:34:48,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:34:48,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:34:48,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:34:48,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:34:48,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:34:48,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:34:48,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:34:48,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:34:48,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:34:48,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:34:48,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:34:48,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:34:48,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:34:48,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:34:48,766 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 [2019-09-08 01:34:48,781 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:34:48,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:34:48,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:34:48,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:34:48,782 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:34:48,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:34:48,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:34:48,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:34:48,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:34:48,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:34:48,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:34:48,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:34:48,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:34:48,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:34:48,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:34:48,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:34:48,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:34:48,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:34:48,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:34:48,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:34:48,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:34:48,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:34:48,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:34:48,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:34:48,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:34:48,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:34:48,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:34:48,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:34:48,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:34:48,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:34:48,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:34:48,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:34:48,832 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:34:48,832 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:34:48,833 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test17.c [2019-09-08 01:34:48,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c59981b18/7489298f5a2f4556b549d544ef294217/FLAGbc8f7d5c4 [2019-09-08 01:34:49,308 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:34:49,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test17.c [2019-09-08 01:34:49,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c59981b18/7489298f5a2f4556b549d544ef294217/FLAGbc8f7d5c4 [2019-09-08 01:34:49,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c59981b18/7489298f5a2f4556b549d544ef294217 [2019-09-08 01:34:49,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:34:49,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:34:49,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:34:49,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:34:49,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:34:49,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:49,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e05795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49, skipping insertion in model container [2019-09-08 01:34:49,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:49,749 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:34:49,767 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:34:49,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:34:49,954 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:34:49,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:34:49,991 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:34:49,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49 WrapperNode [2019-09-08 01:34:49,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:34:49,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:34:49,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:34:49,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:34:50,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (1/1) ... [2019-09-08 01:34:50,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:34:50,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:34:50,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:34:50,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:34:50,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (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 [2019-09-08 01:34:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:34:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:34:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-09-08 01:34:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:34:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:34:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-09-08 01:34:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:34:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:34:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:34:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 01:34:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:34:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:34:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:34:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:34:50,379 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:34:50,379 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:34:50,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:34:50 BoogieIcfgContainer [2019-09-08 01:34:50,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:34:50,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:34:50,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:34:50,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:34:50,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:34:49" (1/3) ... [2019-09-08 01:34:50,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27748bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:34:50, skipping insertion in model container [2019-09-08 01:34:50,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:34:49" (2/3) ... [2019-09-08 01:34:50,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27748bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:34:50, skipping insertion in model container [2019-09-08 01:34:50,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:34:50" (3/3) ... [2019-09-08 01:34:50,389 INFO L109 eAbstractionObserver]: Analyzing ICFG test17.c [2019-09-08 01:34:50,400 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:34:50,408 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:34:50,428 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:34:50,482 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:34:50,483 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:34:50,483 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:34:50,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:34:50,484 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:34:50,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:34:50,484 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:34:50,484 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:34:50,484 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:34:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-08 01:34:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-09-08 01:34:50,511 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:34:50,512 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:34:50,516 INFO L418 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:34:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:34:50,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1534444928, now seen corresponding path program 1 times [2019-09-08 01:34:50,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:34:50,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:34:50,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:34:50,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:34:50,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:34:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:34:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:34:50,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:34:50,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:34:50,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:34:50,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:34:50,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:34:50,724 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-09-08 01:34:50,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:34:50,793 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-09-08 01:34:50,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:34:50,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-09-08 01:34:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:34:50,806 INFO L225 Difference]: With dead ends: 24 [2019-09-08 01:34:50,806 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 01:34:50,809 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:34:50,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 01:34:50,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 01:34:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 01:34:50,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 01:34:50,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-09-08 01:34:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:34:50,836 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 01:34:50,836 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:34:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 01:34:50,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 01:34:50,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 01:34:50,864 INFO L443 ceAbstractionStarter]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-09-08 01:34:50,864 INFO L443 ceAbstractionStarter]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2019-09-08 01:34:50,865 INFO L446 ceAbstractionStarter]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2019-09-08 01:34:50,865 INFO L443 ceAbstractionStarter]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2019-09-08 01:34:50,865 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |equal_#in~a.base| |equal_#in~b.base|)) (not (= |equal_#in~a.offset| |equal_#in~b.offset|))) [2019-09-08 01:34:50,866 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-09-08 01:34:50,866 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-08 01:34:50,866 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-08 01:34:50,866 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 01:34:50,866 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 01:34:50,867 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 01:34:50,867 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 01:34:50,867 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 01:34:50,867 INFO L443 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-09-08 01:34:50,867 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 19) the Hoare annotation is: true [2019-09-08 01:34:50,868 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 19) no Hoare annotation was computed. [2019-09-08 01:34:50,868 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 19) no Hoare annotation was computed. [2019-09-08 01:34:50,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:34:50 BoogieIcfgContainer [2019-09-08 01:34:50,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:34:50,890 INFO L168 Benchmark]: Toolchain (without parser) took 1154.48 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 87.2 MB in the beginning and 138.6 MB in the end (delta: -51.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:34:50,891 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:34:50,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.46 ms. Allocated memory is still 140.5 MB. Free memory was 87.0 MB in the beginning and 77.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:34:50,896 INFO L168 Benchmark]: Boogie Preprocessor took 124.01 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 77.6 MB in the beginning and 178.3 MB in the end (delta: -100.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:34:50,897 INFO L168 Benchmark]: RCFGBuilder took 264.43 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 165.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:34:50,898 INFO L168 Benchmark]: TraceAbstraction took 503.03 ms. Allocated memory is still 200.3 MB. Free memory was 165.2 MB in the beginning and 138.6 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:34:50,911 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.46 ms. Allocated memory is still 140.5 MB. Free memory was 87.0 MB in the beginning and 77.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.01 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 77.6 MB in the beginning and 178.3 MB in the end (delta: -100.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 264.43 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 165.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 503.03 ms. Allocated memory is still 200.3 MB. Free memory was 165.2 MB in the beginning and 138.6 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 4]: Loop Invariant Derived loop invariant: !(a == b) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 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...