java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-regression/test16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:48:27,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:48:27,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:48:27,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:48:27,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:48:27,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:48:27,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:48:27,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:48:27,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:48:27,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:48:27,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:48:27,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:48:27,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:48:27,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:48:27,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:48:27,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:48:27,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:48:27,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:48:27,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:48:27,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:48:27,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:48:27,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:48:27,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:48:27,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:48:27,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 12:48:27,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:48:27,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:48:27,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:48:27,877 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 [2019-10-07 12:48:27,891 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:48:27,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:48:27,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:48:27,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:48:27,893 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:48:27,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:48:27,894 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:48:27,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:48:27,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:48:27,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:48:27,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:48:27,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:48:27,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:48:27,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:48:27,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:48:27,895 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:48:27,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:48:27,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:48:27,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:48:27,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:48:27,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:48:27,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:27,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:48:27,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:48:27,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:48:27,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:48:27,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:48:27,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:48:27,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 12:48:28,184 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:28,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:28,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:28,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:28,204 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:28,205 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c [2019-10-07 12:48:28,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b846ce15/4610fb1dc34f41b2afc4d66555a1b4e3/FLAGaf6849050 [2019-10-07 12:48:28,709 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:28,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test16.c [2019-10-07 12:48:28,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b846ce15/4610fb1dc34f41b2afc4d66555a1b4e3/FLAGaf6849050 [2019-10-07 12:48:29,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b846ce15/4610fb1dc34f41b2afc4d66555a1b4e3 [2019-10-07 12:48:29,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:29,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:29,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:29,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:29,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:29,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da11249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29, skipping insertion in model container [2019-10-07 12:48:29,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,124 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:29,141 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:29,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:29,438 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:29,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:29,474 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:29,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29 WrapperNode [2019-10-07 12:48:29,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:29,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:29,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:29,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:29,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... [2019-10-07 12:48:29,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:29,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:29,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:29,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:29,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-10-07 12:48:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-10-07 12:48:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:48:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:48:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:48:29,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:29,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:30,013 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:30,014 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:30,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:30 BoogieIcfgContainer [2019-10-07 12:48:30,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:30,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:30,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:30,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:30,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:29" (1/3) ... [2019-10-07 12:48:30,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3763745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:30, skipping insertion in model container [2019-10-07 12:48:30,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:29" (2/3) ... [2019-10-07 12:48:30,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3763745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:30, skipping insertion in model container [2019-10-07 12:48:30,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:30" (3/3) ... [2019-10-07 12:48:30,047 INFO L109 eAbstractionObserver]: Analyzing ICFG test16.c [2019-10-07 12:48:30,061 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:30,071 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:30,088 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:30,141 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:30,142 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:30,142 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:30,142 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:30,142 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:30,143 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:30,143 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:30,143 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:30,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-07 12:48:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-07 12:48:30,170 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:30,171 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:30,174 INFO L410 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:30,181 INFO L82 PathProgramCache]: Analyzing trace with hash 775688179, now seen corresponding path program 1 times [2019-10-07 12:48:30,192 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:30,192 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:30,192 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:30,193 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:30,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 12:48:30,493 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:30,494 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:30,494 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 12:48:30,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 12:48:30,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 12:48:30,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 12:48:30,523 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-10-07 12:48:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:30,720 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-07 12:48:30,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 12:48:30,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-07 12:48:30,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:30,736 INFO L225 Difference]: With dead ends: 22 [2019-10-07 12:48:30,736 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:30,745 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-07 12:48:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:30,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:30,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:30,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-10-07 12:48:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:30,786 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:30,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 12:48:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:30,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:30,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:30,931 INFO L443 ceAbstractionStarter]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-07 12:48:30,931 INFO L443 ceAbstractionStarter]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2019-10-07 12:48:30,932 INFO L446 ceAbstractionStarter]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2019-10-07 12:48:30,933 INFO L443 ceAbstractionStarter]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2019-10-07 12:48:30,933 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|) (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)))) [2019-10-07 12:48:30,934 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-07 12:48:30,934 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:30,934 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:30,935 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:30,935 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) [2019-10-07 12:48:30,936 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:30,936 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:30,936 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 17 28) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|)) (not (= (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|) (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|)))) [2019-10-07 12:48:30,939 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|)) (not (= (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|) (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|)))) [2019-10-07 12:48:30,940 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-10-07 12:48:30,940 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 28) no Hoare annotation was computed. [2019-10-07 12:48:30,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:30,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:30 BoogieIcfgContainer [2019-10-07 12:48:30,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:30,994 INFO L168 Benchmark]: Toolchain (without parser) took 1887.24 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 122.0 MB in the end (delta: -21.0 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:30,996 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 12:48:30,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.13 ms. Allocated memory is still 144.2 MB. Free memory was 100.8 MB in the beginning and 90.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:31,004 INFO L168 Benchmark]: Boogie Preprocessor took 141.00 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 90.9 MB in the beginning and 179.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:31,005 INFO L168 Benchmark]: RCFGBuilder took 399.77 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 165.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:31,008 INFO L168 Benchmark]: TraceAbstraction took 959.77 ms. Allocated memory is still 201.9 MB. Free memory was 164.9 MB in the beginning and 122.0 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:31,021 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 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.13 ms. Allocated memory is still 144.2 MB. Free memory was 100.8 MB in the beginning and 90.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.00 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 90.9 MB in the beginning and 179.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.77 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 165.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 959.77 ms. Allocated memory is still 201.9 MB. Free memory was 164.9 MB in the beginning and 122.0 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 [2019-10-07 12:48:31,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 12:48:31,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (a == b || !(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a])) || !(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 14 SDs, 0 SdLazy, 13 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 101 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...