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/test_union.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:56:26,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:56:26,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:56:26,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:56:26,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:56:26,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:56:26,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:56:26,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:56:26,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:56:26,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:56:26,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:56:26,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:56:26,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:56:26,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:56:26,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:56:26,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:56:26,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:56:26,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:56:26,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:56:26,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:56:26,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:56:26,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:56:26,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:56:26,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:56:26,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 02:56:26,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:56:26,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:56:26,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:56:26,296 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 [2019-10-15 02:56:26,314 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:56:26,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:56:26,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:56:26,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:56:26,317 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:56:26,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:56:26,318 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:56:26,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:56:26,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:56:26,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:56:26,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:56:26,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:56:26,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:56:26,320 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:56:26,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:56:26,321 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:56:26,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:56:26,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:56:26,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:56:26,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:56:26,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:56:26,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:56:26,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:56:26,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:56:26,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:56:26,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:56:26,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:56:26,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:56:26,323 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 [2019-10-15 02:56:26,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:56:26,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:56:26,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:56:26,631 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:56:26,631 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:56:26,632 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union.i [2019-10-15 02:56:26,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa7d1dff5/391119f66c5a448daeecce4a2d83c4a8/FLAG2711b45ac [2019-10-15 02:56:27,180 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:56:27,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union.i [2019-10-15 02:56:27,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa7d1dff5/391119f66c5a448daeecce4a2d83c4a8/FLAG2711b45ac [2019-10-15 02:56:27,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa7d1dff5/391119f66c5a448daeecce4a2d83c4a8 [2019-10-15 02:56:27,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:56:27,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:56:27,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:56:27,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:56:27,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:56:27,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af7ade4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27, skipping insertion in model container [2019-10-15 02:56:27,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,562 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:56:27,578 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:56:27,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:56:27,761 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:56:27,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:56:27,801 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:56:27,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27 WrapperNode [2019-10-15 02:56:27,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:56:27,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:56:27,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:56:27,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:56:27,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (1/1) ... [2019-10-15 02:56:27,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:56:27,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:56:27,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:56:27,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:56:27,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (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 [2019-10-15 02:56:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:56:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:56:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-15 02:56:27,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:56:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:56:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-15 02:56:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:56:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:56:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:56:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:56:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:56:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:56:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:56:28,137 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:56:28,138 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:56:28,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:56:28 BoogieIcfgContainer [2019-10-15 02:56:28,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:56:28,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:56:28,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:56:28,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:56:28,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:56:27" (1/3) ... [2019-10-15 02:56:28,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733e113f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:56:28, skipping insertion in model container [2019-10-15 02:56:28,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:27" (2/3) ... [2019-10-15 02:56:28,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733e113f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:56:28, skipping insertion in model container [2019-10-15 02:56:28,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:56:28" (3/3) ... [2019-10-15 02:56:28,146 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union.i [2019-10-15 02:56:28,156 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:56:28,163 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:56:28,175 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:56:28,200 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:56:28,200 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:56:28,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:56:28,200 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:56:28,201 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:56:28,201 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:56:28,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:56:28,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:56:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-10-15 02:56:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-15 02:56:28,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:28,223 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:28,225 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash -113711847, now seen corresponding path program 1 times [2019-10-15 02:56:28,237 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:28,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278606509] [2019-10-15 02:56:28,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:28,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:28,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:28,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278606509] [2019-10-15 02:56:28,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:28,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:56:28,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060086447] [2019-10-15 02:56:28,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:56:28,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:28,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:56:28,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:56:28,474 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-10-15 02:56:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:28,556 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-10-15 02:56:28,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:56:28,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-15 02:56:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:28,566 INFO L225 Difference]: With dead ends: 18 [2019-10-15 02:56:28,566 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 02:56:28,570 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:56:28,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 02:56:28,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 02:56:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 02:56:28,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 02:56:28,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-10-15 02:56:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:28,601 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 02:56:28,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:56:28,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 02:56:28,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 02:56:28,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 02:56:28,673 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 02:56:28,673 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 02:56:28,674 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-15 02:56:28,674 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-10-15 02:56:28,674 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-10-15 02:56:28,675 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 02:56:28,675 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 02:56:28,675 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 02:56:28,675 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 02:56:28,675 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 23 31) the Hoare annotation is: true [2019-10-15 02:56:28,676 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-10-15 02:56:28,676 INFO L439 ceAbstractionStarter]: At program point L29-2(line 29) the Hoare annotation is: false [2019-10-15 02:56:28,676 INFO L443 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed. [2019-10-15 02:56:28,676 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 23 31) no Hoare annotation was computed. [2019-10-15 02:56:28,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:56:28 BoogieIcfgContainer [2019-10-15 02:56:28,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 02:56:28,686 INFO L168 Benchmark]: Toolchain (without parser) took 1134.41 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.8 MB in the beginning and 146.6 MB in the end (delta: -43.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:28,688 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 02:56:28,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.02 ms. Allocated memory is still 139.5 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:28,690 INFO L168 Benchmark]: Boogie Preprocessor took 102.07 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 93.2 MB in the beginning and 180.6 MB in the end (delta: -87.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:28,692 INFO L168 Benchmark]: RCFGBuilder took 234.73 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 169.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:28,693 INFO L168 Benchmark]: TraceAbstraction took 540.54 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 146.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:28,697 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.02 ms. Allocated memory is still 139.5 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.07 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 93.2 MB in the beginning and 180.6 MB in the end (delta: -87.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.73 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 169.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 540.54 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 146.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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...