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/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:02:58,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:02:58,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:02:58,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:02:58,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:02:58,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:02:58,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:02:58,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:02:58,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:02:58,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:02:58,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:02:58,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:02:58,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:02:58,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:02:58,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:02:58,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:02:58,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:02:58,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:02:58,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:02:58,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:02:58,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:02:58,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:02:58,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:02:58,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:02:58,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:02:58,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:02:58,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:02:58,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:02:58,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:02:58,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:02:58,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:02:58,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:02:58,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:02:58,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:02:58,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:02:58,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:02:58,299 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 03:02:58,321 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:02:58,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:02:58,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:02:58,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:02:58,325 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:02:58,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:02:58,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:02:58,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:02:58,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:02:58,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:02:58,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:02:58,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:02:58,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:02:58,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:02:58,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:02:58,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:02:58,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:02:58,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:02:58,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:02:58,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:02:58,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:02:58,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:02:58,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:02:58,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:02:58,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:02:58,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:02:58,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:02:58,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:02:58,332 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 03:02:58,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:02:58,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:02:58,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:02:58,677 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:02:58,677 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:02:58,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-10-15 03:02:58,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7c0c7bc/ff614cf38dfb4c39a4695b71547c94e4/FLAGb41c9daf5 [2019-10-15 03:02:59,228 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:02:59,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-10-15 03:02:59,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7c0c7bc/ff614cf38dfb4c39a4695b71547c94e4/FLAGb41c9daf5 [2019-10-15 03:02:59,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7c0c7bc/ff614cf38dfb4c39a4695b71547c94e4 [2019-10-15 03:02:59,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:02:59,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:02:59,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:59,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:02:59,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:02:59,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:59" (1/1) ... [2019-10-15 03:02:59,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516e4b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:59, skipping insertion in model container [2019-10-15 03:02:59,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:59" (1/1) ... [2019-10-15 03:02:59,604 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:02:59,629 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:03:00,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:00,006 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:03:00,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:00,044 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:03:00,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00 WrapperNode [2019-10-15 03:03:00,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:00,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:03:00,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:03:00,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:03:00,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (1/1) ... [2019-10-15 03:03:00,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:03:00,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:03:00,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:03:00,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:03:00,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (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 03:03:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:03:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:03:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:03:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:03:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:03:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:03:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:03:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:03:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:03:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:03:00,454 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:03:00,454 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 03:03:00,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:00 BoogieIcfgContainer [2019-10-15 03:03:00,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:03:00,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:03:00,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:03:00,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:03:00,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:02:59" (1/3) ... [2019-10-15 03:03:00,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c7e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:00, skipping insertion in model container [2019-10-15 03:03:00,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:00" (2/3) ... [2019-10-15 03:03:00,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c7e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:00, skipping insertion in model container [2019-10-15 03:03:00,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:00" (3/3) ... [2019-10-15 03:03:00,464 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2019-10-15 03:03:00,476 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:03:00,489 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:03:00,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:03:00,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:03:00,542 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:03:00,542 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:03:00,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:03:00,543 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:03:00,543 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:03:00,543 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:03:00,544 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:03:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-15 03:03:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:03:00,577 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:00,578 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:00,580 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:00,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:00,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2057132807, now seen corresponding path program 1 times [2019-10-15 03:03:00,598 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:00,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107070321] [2019-10-15 03:03:00,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:00,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:00,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:00,952 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 03:03:00,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107070321] [2019-10-15 03:03:00,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:03:00,955 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:03:00,955 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867702158] [2019-10-15 03:03:00,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:03:00,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:00,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:03:00,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:03:00,976 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-10-15 03:03:01,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:01,234 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2019-10-15 03:03:01,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:03:01,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-15 03:03:01,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:01,250 INFO L225 Difference]: With dead ends: 31 [2019-10-15 03:03:01,251 INFO L226 Difference]: Without dead ends: 13 [2019-10-15 03:03:01,258 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:03:01,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-15 03:03:01,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-15 03:03:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-15 03:03:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-15 03:03:01,301 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-15 03:03:01,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:01,301 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-15 03:03:01,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:03:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-15 03:03:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 03:03:01,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:01,303 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:01,303 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:01,304 INFO L82 PathProgramCache]: Analyzing trace with hash -655331726, now seen corresponding path program 1 times [2019-10-15 03:03:01,304 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:01,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165953493] [2019-10-15 03:03:01,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:01,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:01,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:01,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165953493] [2019-10-15 03:03:01,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462100072] [2019-10-15 03:03:01,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:01,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-15 03:03:01,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:01,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:01,665 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:01,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1885062098] [2019-10-15 03:03:01,871 INFO L162 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-10-15 03:03:01,872 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:01,879 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:01,889 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:01,890 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:02,063 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-10-15 03:03:02,527 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-15 03:03:02,533 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:02,670 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 27 [2019-10-15 03:03:03,387 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:03:03,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 9] total 21 [2019-10-15 03:03:03,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638320805] [2019-10-15 03:03:03,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:03:03,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:03,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:03:03,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:03:03,401 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 21 states. [2019-10-15 03:03:04,092 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2019-10-15 03:03:04,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:04,985 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-10-15 03:03:04,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 03:03:04,986 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 12 [2019-10-15 03:03:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:04,987 INFO L225 Difference]: With dead ends: 23 [2019-10-15 03:03:04,987 INFO L226 Difference]: Without dead ends: 16 [2019-10-15 03:03:04,990 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=354, Invalid=978, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 03:03:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-15 03:03:04,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-15 03:03:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-15 03:03:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-15 03:03:04,996 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-10-15 03:03:04,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:04,996 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-15 03:03:04,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:03:04,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-15 03:03:04,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 03:03:04,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:04,998 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:05,207 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:05,208 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:05,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:05,209 INFO L82 PathProgramCache]: Analyzing trace with hash 8150471, now seen corresponding path program 2 times [2019-10-15 03:03:05,209 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:05,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887476243] [2019-10-15 03:03:05,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:05,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:05,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 03:03:05,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887476243] [2019-10-15 03:03:05,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665763025] [2019-10-15 03:03:05,397 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:05,438 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-15 03:03:05,439 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:03:05,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-15 03:03:05,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:05,586 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:05,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1030770851] [2019-10-15 03:03:05,729 INFO L162 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-10-15 03:03:05,729 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:05,730 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:05,731 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:05,732 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:05,773 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-10-15 03:03:06,041 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-15 03:03:06,047 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:06,587 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:03:06,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9, 9] total 28 [2019-10-15 03:03:06,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342276557] [2019-10-15 03:03:06,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:03:06,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:06,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:03:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:03:06,590 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 28 states. [2019-10-15 03:03:07,504 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2019-10-15 03:03:07,778 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2019-10-15 03:03:07,932 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2019-10-15 03:03:07,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:07,934 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-10-15 03:03:07,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:03:07,934 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 15 [2019-10-15 03:03:07,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:07,934 INFO L225 Difference]: With dead ends: 19 [2019-10-15 03:03:07,935 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:03:07,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 03:03:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:03:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:03:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:03:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:03:07,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-15 03:03:07,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:07,938 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:03:07,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:03:07,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:03:07,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:03:08,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:08,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:03:08,388 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 26 [2019-10-15 03:03:08,392 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_72~0)| ~__return_72~0)) [2019-10-15 03:03:08,392 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:08,392 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:08,392 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 ~__return_72~0) (= ~__return_main~0 0) (<= ~__return_72~0 0)) [2019-10-15 03:03:08,392 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:03:08,393 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:03:08,393 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 65) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (= |old(~__return_72~0)| ~__return_72~0) (not (= |old(~__return_72~0)| 0))) [2019-10-15 03:03:08,393 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 65) no Hoare annotation was computed. [2019-10-15 03:03:08,394 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2019-10-15 03:03:08,394 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-10-15 03:03:08,395 INFO L443 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2019-10-15 03:03:08,395 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2019-10-15 03:03:08,395 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2019-10-15 03:03:08,395 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 65) no Hoare annotation was computed. [2019-10-15 03:03:08,395 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2019-10-15 03:03:08,395 INFO L439 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (let ((.cse1 (+ main_~main__i~0 main_~main__y~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0))) (and (<= 0 main_~main__i~0) (<= main_~main__j~0 2147483647) (<= main_~main__i~0 2147483647) (<= .cse0 .cse1) (<= main_~main__x~0 2147483647) (<= .cse1 .cse0) (<= 0 main_~main__j~0) (= |old(~__return_72~0)| ~__return_72~0) (<= main_~main__y~0 2147483647))) (not (= |old(~__return_72~0)| 0))) [2019-10-15 03:03:08,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:03:08 BoogieIcfgContainer [2019-10-15 03:03:08,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:03:08,429 INFO L168 Benchmark]: Toolchain (without parser) took 8849.06 ms. Allocated memory was 135.8 MB in the beginning and 296.7 MB in the end (delta: 161.0 MB). Free memory was 100.9 MB in the beginning and 163.4 MB in the end (delta: -62.6 MB). Peak memory consumption was 98.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,432 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.41 ms. Allocated memory is still 135.8 MB. Free memory was 100.7 MB in the beginning and 91.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,434 INFO L168 Benchmark]: Boogie Preprocessor took 113.99 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 91.1 MB in the beginning and 178.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,435 INFO L168 Benchmark]: RCFGBuilder took 295.40 ms. Allocated memory is still 199.8 MB. Free memory was 178.0 MB in the beginning and 165.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,436 INFO L168 Benchmark]: TraceAbstraction took 7968.93 ms. Allocated memory was 199.8 MB in the beginning and 296.7 MB in the end (delta: 97.0 MB). Free memory was 165.3 MB in the beginning and 163.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,439 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 462.41 ms. Allocated memory is still 135.8 MB. Free memory was 100.7 MB in the beginning and 91.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.99 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 91.1 MB in the beginning and 178.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 295.40 ms. Allocated memory is still 199.8 MB. Free memory was 178.0 MB in the beginning and 165.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7968.93 ms. Allocated memory was 199.8 MB in the beginning and 296.7 MB in the end (delta: 97.0 MB). Free memory was 165.3 MB in the beginning and 163.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 25]: Loop Invariant Derived loop invariant: (!(0 == __return_main) || ((((((((0 <= main__i && main__j <= 2147483647) && main__i <= 2147483647) && main__j + main__x <= main__i + main__y) && main__x <= 2147483647) && main__i + main__y <= main__j + main__x) && 0 <= main__j) && \old(__return_72) == __return_72) && main__y <= 2147483647)) || !(\old(__return_72) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 7.8s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 29 SDtfs, 172 SDslu, 102 SDs, 0 SdLazy, 197 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 4.8s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 75 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 359 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 6270 SizeOfPredicates, 16 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 3/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 982, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 42, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 24, TOOLS_POST_TIME[ms]: 27, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 12, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 7, TOOLS_QUANTIFIERELIM_APPLICATIONS: 36, TOOLS_QUANTIFIERELIM_TIME[ms]: 28, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 5, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 48, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 38, DOMAIN_JOIN_TIME[ms]: 631, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 180, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 19, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 14, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 430, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 430, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 41, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 41, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 20, DAG_COMPRESSION_PROCESSED_NODES: 142, DAG_COMPRESSION_RETAINED_NODES: 78, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...