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/eca-rers2012/Problem02_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:43:13,330 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-15 01:43:13,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:43:13,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:43:13,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:43:13,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:43:13,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:43:13,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:43:13,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:43:13,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:43:13,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:43:13,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:43:13,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:43:13,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:43:13,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:43:13,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:43:13,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:43:13,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:43:13,399 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 01:43:13,413 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:43:13,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:43:13,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:43:13,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:43:13,415 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:43:13,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:43:13,416 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:43:13,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:43:13,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:43:13,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:43:13,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:43:13,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:43:13,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:43:13,417 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:43:13,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:43:13,417 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:43:13,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:43:13,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:43:13,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:43:13,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:43:13,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:43:13,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:43:13,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:43:13,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:43:13,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:43:13,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:43:13,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:43:13,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:43:13,420 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 01:43:13,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:43:13,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:43:13,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:43:13,744 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:43:13,745 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:43:13,746 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2019-10-15 01:43:13,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585c4e680/b8cfd2c92b6842a6b4fa0b7b27cf12a8/FLAGec609d0c7 [2019-10-15 01:43:14,399 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:43:14,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2019-10-15 01:43:14,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585c4e680/b8cfd2c92b6842a6b4fa0b7b27cf12a8/FLAGec609d0c7 [2019-10-15 01:43:14,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585c4e680/b8cfd2c92b6842a6b4fa0b7b27cf12a8 [2019-10-15 01:43:14,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:43:14,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:43:14,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:43:14,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:43:14,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:43:14,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:14" (1/1) ... [2019-10-15 01:43:14,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c0bab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:14, skipping insertion in model container [2019-10-15 01:43:14,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:14" (1/1) ... [2019-10-15 01:43:14,707 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:43:14,761 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:43:15,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:43:15,246 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:43:15,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:43:15,367 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:43:15,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15 WrapperNode [2019-10-15 01:43:15,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:43:15,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:43:15,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:43:15,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:43:15,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (1/1) ... [2019-10-15 01:43:15,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:43:15,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:43:15,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:43:15,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:43:15,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (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 01:43:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:43:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:43:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:43:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:43:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:43:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:43:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:43:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:43:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:43:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:43:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:43:17,611 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:43:17,611 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:43:17,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:17 BoogieIcfgContainer [2019-10-15 01:43:17,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:43:17,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:43:17,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:43:17,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:43:17,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:43:14" (1/3) ... [2019-10-15 01:43:17,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d16bdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:17, skipping insertion in model container [2019-10-15 01:43:17,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:15" (2/3) ... [2019-10-15 01:43:17,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d16bdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:17, skipping insertion in model container [2019-10-15 01:43:17,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:17" (3/3) ... [2019-10-15 01:43:17,630 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2019-10-15 01:43:17,643 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:43:17,655 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:43:17,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:43:17,701 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:43:17,701 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:43:17,701 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:43:17,702 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:43:17,702 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:43:17,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:43:17,702 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:43:17,702 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:43:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 01:43:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 01:43:17,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:17,756 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:17,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:17,765 INFO L82 PathProgramCache]: Analyzing trace with hash 989882550, now seen corresponding path program 1 times [2019-10-15 01:43:17,775 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:17,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274219778] [2019-10-15 01:43:17,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:17,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:17,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:18,260 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 01:43:18,261 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274219778] [2019-10-15 01:43:18,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:18,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:43:18,263 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884695934] [2019-10-15 01:43:18,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:18,269 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:18,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:18,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:18,288 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-15 01:43:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:18,841 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-15 01:43:18,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:18,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-15 01:43:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:18,859 INFO L225 Difference]: With dead ends: 273 [2019-10-15 01:43:18,860 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 01:43:18,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 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 01:43:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 01:43:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-15 01:43:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-15 01:43:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 312 transitions. [2019-10-15 01:43:18,964 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 312 transitions. Word has length 86 [2019-10-15 01:43:18,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:18,965 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 312 transitions. [2019-10-15 01:43:18,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 312 transitions. [2019-10-15 01:43:18,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:43:18,979 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:18,980 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:18,980 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:18,982 INFO L82 PathProgramCache]: Analyzing trace with hash -260139973, now seen corresponding path program 1 times [2019-10-15 01:43:18,982 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:18,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081242420] [2019-10-15 01:43:18,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:18,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:18,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:19,180 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081242420] [2019-10-15 01:43:19,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:19,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:43:19,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663275653] [2019-10-15 01:43:19,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:19,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:19,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:19,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:19,185 INFO L87 Difference]: Start difference. First operand 175 states and 312 transitions. Second operand 3 states. [2019-10-15 01:43:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:19,601 INFO L93 Difference]: Finished difference Result 513 states and 937 transitions. [2019-10-15 01:43:19,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:19,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-15 01:43:19,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:19,607 INFO L225 Difference]: With dead ends: 513 [2019-10-15 01:43:19,608 INFO L226 Difference]: Without dead ends: 343 [2019-10-15 01:43:19,610 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 01:43:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-15 01:43:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-15 01:43:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 01:43:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 580 transitions. [2019-10-15 01:43:19,643 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 580 transitions. Word has length 94 [2019-10-15 01:43:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:19,646 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 580 transitions. [2019-10-15 01:43:19,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:19,646 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 580 transitions. [2019-10-15 01:43:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-15 01:43:19,649 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:19,649 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:19,652 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:19,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:19,652 INFO L82 PathProgramCache]: Analyzing trace with hash 731901255, now seen corresponding path program 1 times [2019-10-15 01:43:19,653 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:19,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242771156] [2019-10-15 01:43:19,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:19,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:19,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:19,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242771156] [2019-10-15 01:43:19,832 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:19,832 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:43:19,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404840225] [2019-10-15 01:43:19,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:43:19,833 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:19,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:43:19,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:43:19,834 INFO L87 Difference]: Start difference. First operand 343 states and 580 transitions. Second operand 4 states. [2019-10-15 01:43:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:20,608 INFO L93 Difference]: Finished difference Result 1353 states and 2401 transitions. [2019-10-15 01:43:20,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:43:20,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2019-10-15 01:43:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:20,619 INFO L225 Difference]: With dead ends: 1353 [2019-10-15 01:43:20,619 INFO L226 Difference]: Without dead ends: 1015 [2019-10-15 01:43:20,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:43:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2019-10-15 01:43:20,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2019-10-15 01:43:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-10-15 01:43:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1575 transitions. [2019-10-15 01:43:20,707 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1575 transitions. Word has length 100 [2019-10-15 01:43:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:20,708 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 1575 transitions. [2019-10-15 01:43:20,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:43:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1575 transitions. [2019-10-15 01:43:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-15 01:43:20,713 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:20,713 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:20,713 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1551389941, now seen corresponding path program 1 times [2019-10-15 01:43:20,714 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:20,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19478549] [2019-10-15 01:43:20,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:20,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:20,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:20,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19478549] [2019-10-15 01:43:20,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547785642] [2019-10-15 01:43:20,839 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 01:43:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:21,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:43:21,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:43:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:21,146 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:43:21,258 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:21,258 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1262329157] [2019-10-15 01:43:21,314 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-15 01:43:21,314 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:43:21,324 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:43:21,334 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:43:21,335 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:43:21,737 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 87 for LOIs [2019-10-15 01:43:23,893 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 83 for LOIs [2019-10-15 01:43:26,164 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 22 [2019-10-15 01:43:26,229 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 43 [2019-10-15 01:43:26,417 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 43 [2019-10-15 01:43:26,608 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-10-15 01:43:26,625 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 01:43:26,892 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-10-15 01:43:27,161 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-10-15 01:43:27,534 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-10-15 01:43:27,808 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2019-10-15 01:43:28,230 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2019-10-15 01:43:28,492 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-10-15 01:43:28,715 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-10-15 01:43:28,958 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2019-10-15 01:43:29,198 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-10-15 01:43:29,904 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2019-10-15 01:43:30,796 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2019-10-15 01:43:33,529 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 01:43:33,530 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 12] total 22 [2019-10-15 01:43:33,530 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689534058] [2019-10-15 01:43:33,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 01:43:33,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:33,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 01:43:33,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:43:33,533 INFO L87 Difference]: Start difference. First operand 1015 states and 1575 transitions. Second operand 22 states. [2019-10-15 01:43:33,835 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-10-15 01:43:34,239 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2019-10-15 01:43:34,664 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 101 [2019-10-15 01:43:35,141 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 95 [2019-10-15 01:43:35,490 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-10-15 01:43:35,857 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 95 [2019-10-15 01:43:36,355 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2019-10-15 01:43:36,927 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2019-10-15 01:43:37,268 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-10-15 01:43:37,575 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-10-15 01:43:37,751 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-10-15 01:43:37,911 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-10-15 01:43:38,372 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-10-15 01:43:38,577 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-10-15 01:43:39,844 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-10-15 01:43:43,040 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-10-15 01:43:44,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:44,504 INFO L93 Difference]: Finished difference Result 2675 states and 4292 transitions. [2019-10-15 01:43:44,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-10-15 01:43:44,505 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 117 [2019-10-15 01:43:44,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:44,520 INFO L225 Difference]: With dead ends: 2675 [2019-10-15 01:43:44,520 INFO L226 Difference]: Without dead ends: 1665 [2019-10-15 01:43:44,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 259 SyntacticMatches, 87 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2403 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=671, Invalid=3235, Unknown=0, NotChecked=0, Total=3906 [2019-10-15 01:43:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2019-10-15 01:43:44,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1622. [2019-10-15 01:43:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1622 states. [2019-10-15 01:43:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2384 transitions. [2019-10-15 01:43:44,638 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2384 transitions. Word has length 117 [2019-10-15 01:43:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:44,639 INFO L462 AbstractCegarLoop]: Abstraction has 1622 states and 2384 transitions. [2019-10-15 01:43:44,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 01:43:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2384 transitions. [2019-10-15 01:43:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 01:43:44,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:44,645 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:44,858 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:43:44,859 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:44,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:44,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1595820013, now seen corresponding path program 1 times [2019-10-15 01:43:44,859 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:44,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220340681] [2019-10-15 01:43:44,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:44,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:44,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:45,193 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:45,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220340681] [2019-10-15 01:43:45,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143358122] [2019-10-15 01:43:45,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 01:43:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:45,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:43:45,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:43:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:43:45,379 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:43:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:43:45,416 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:43:45,416 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2019-10-15 01:43:45,416 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119728956] [2019-10-15 01:43:45,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:45,417 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:45,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:45,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:43:45,418 INFO L87 Difference]: Start difference. First operand 1622 states and 2384 transitions. Second operand 3 states. [2019-10-15 01:43:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:45,883 INFO L93 Difference]: Finished difference Result 3394 states and 5133 transitions. [2019-10-15 01:43:45,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:45,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-15 01:43:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:45,890 INFO L225 Difference]: With dead ends: 3394 [2019-10-15 01:43:45,891 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:43:45,899 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 243 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:43:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:43:45,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:43:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:43:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:43:45,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2019-10-15 01:43:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:45,900 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:43:45,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:43:45,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:43:46,113 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:43:46,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:43:46,621 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2019-10-15 01:43:47,201 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 32 [2019-10-15 01:43:47,551 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 94 [2019-10-15 01:43:47,846 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 94 [2019-10-15 01:43:47,850 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2019-10-15 01:43:47,850 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:43:47,850 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-10-15 01:43:47,850 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-10-15 01:43:47,850 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-10-15 01:43:47,850 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-10-15 01:43:47,851 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-10-15 01:43:47,852 INFO L443 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-10-15 01:43:47,853 INFO L443 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-10-15 01:43:47,854 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-10-15 01:43:47,855 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-10-15 01:43:47,856 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 541) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-10-15 01:43:47,857 INFO L443 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-10-15 01:43:47,858 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-10-15 01:43:47,858 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (= 1 |old(~a25~0)|)) (.cse1 (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)))) (and (or .cse0 (= 10 |old(~a28~0)|) .cse1) (or .cse1 .cse2 (not (<= |old(~a17~0)| 7))) (or .cse0 (not .cse2) .cse1) (or (= 1 |old(~a11~0)|) .cse1))) [2019-10-15 01:43:47,858 INFO L443 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-10-15 01:43:47,858 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-10-15 01:43:47,858 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-10-15 01:43:47,858 INFO L443 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-10-15 01:43:47,859 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-10-15 01:43:47,860 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-10-15 01:43:47,861 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-10-15 01:43:47,861 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:43:47,861 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 21 ~u~0) (<= 1 ~a21~0) (= 22 ~v~0) (<= 25 ~y~0) (= 3 ~c~0) (<= ~y~0 25) (= 24 ~x~0) (<= 23 ~w~0) (<= ~a21~0 1) (= 6 ~f~0) (= 26 ~z~0) (= 1 ~a~0) (= ~a11~0 0) (= 4 ~d~0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (<= ~w~0 23) (<= ~e~0 5) (<= 5 ~e~0)) [2019-10-15 01:43:47,861 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:43:47,861 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:43:47,861 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (not (= 3 ~c~0)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (not (= 26 ~z~0)) (not (<= 25 ~y~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0))) [2019-10-15 01:43:47,862 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= ~a25~0 1)) (.cse1 (<= ~a28~0 10))) (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (and (<= ~a17~0 7) (not .cse0)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 1 ~a11~0)) (not (= 0 |old(~a25~0)|)) (and .cse1 .cse0) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (and .cse1 (not (= ~a28~0 10))) (not (= 26 ~z~0)) (not (<= 25 ~y~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0)))) [2019-10-15 01:43:47,862 INFO L443 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:43:47,862 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:43:47,863 INFO L439 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= ~a25~0 1)) (.cse1 (<= ~a28~0 10))) (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (and (<= ~a17~0 7) (not .cse0)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 1 ~a11~0)) (not (= 0 |old(~a25~0)|)) (and .cse1 .cse0) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (and .cse1 (not (= ~a28~0 10))) (not (= 26 ~z~0)) (not (<= 25 ~y~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0)))) [2019-10-15 01:43:47,863 INFO L443 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2019-10-15 01:43:47,863 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-15 01:43:47,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:43:47 BoogieIcfgContainer [2019-10-15 01:43:47,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:43:47,887 INFO L168 Benchmark]: Toolchain (without parser) took 33197.13 ms. Allocated memory was 146.3 MB in the beginning and 758.1 MB in the end (delta: 611.8 MB). Free memory was 100.8 MB in the beginning and 620.5 MB in the end (delta: -519.8 MB). Peak memory consumption was 586.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:43:47,887 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:43:47,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.71 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 167.0 MB in the end (delta: -66.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:43:47,889 INFO L168 Benchmark]: Boogie Preprocessor took 100.85 ms. Allocated memory is still 203.9 MB. Free memory was 167.0 MB in the beginning and 162.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:43:47,890 INFO L168 Benchmark]: RCFGBuilder took 2143.23 ms. Allocated memory was 203.9 MB in the beginning and 249.0 MB in the end (delta: 45.1 MB). Free memory was 162.3 MB in the beginning and 195.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:43:47,891 INFO L168 Benchmark]: TraceAbstraction took 30269.84 ms. Allocated memory was 249.0 MB in the beginning and 758.1 MB in the end (delta: 509.1 MB). Free memory was 195.6 MB in the beginning and 620.5 MB in the end (delta: -424.9 MB). Peak memory consumption was 578.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:43:47,895 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.71 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 167.0 MB in the end (delta: -66.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.85 ms. Allocated memory is still 203.9 MB. Free memory was 167.0 MB in the beginning and 162.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2143.23 ms. Allocated memory was 203.9 MB in the beginning and 249.0 MB in the end (delta: 45.1 MB). Free memory was 162.3 MB in the beginning and 195.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30269.84 ms. Allocated memory was 249.0 MB in the beginning and 758.1 MB in the end (delta: 509.1 MB). Free memory was 195.6 MB in the beginning and 620.5 MB in the end (delta: -424.9 MB). Peak memory consumption was 578.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 541]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((!(\old(a19) <= 1) || !(7 == \old(a28))) || !(4 == d)) || !(21 == u)) || !(e <= 5)) || !(\old(a11) <= 0)) || !(22 == v)) || !(1 == a)) || !(1 <= \old(a19))) || (a17 <= 7 && !(a25 == 1))) || !(0 <= \old(a11))) || !(a21 <= 1)) || !(23 <= w)) || !(1 == a11)) || !(0 == \old(a25))) || (a28 <= 10 && a25 == 1)) || !(3 == c)) || !(w <= 23)) || !(5 <= e)) || !(1 <= a21)) || (a28 <= 10 && !(a28 == 10))) || !(26 == z)) || !(25 <= y)) || !(y <= 25)) || !(24 == x)) || !(8 == \old(a17))) || !(6 == f) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 1 error locations. Result: SAFE, OverallTime: 30.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, HoareTripleCheckerStatistics: 501 SDtfs, 1885 SDslu, 216 SDs, 0 SdLazy, 3919 SolverSat, 925 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 675 GetRequests, 511 SyntacticMatches, 91 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2420 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1622occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 43 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 63 PreInvPairs, 109 NumberOfFragments, 560 HoareAnnotationTreeSize, 63 FomulaSimplifications, 828 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2865 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 756 NumberOfCodeBlocks, 756 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 985 ConstructedInterpolants, 0 QuantifiedInterpolants, 285293 SizeOfPredicates, 2 NumberOfNonLiveVariables, 834 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 221/244 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 5312, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 135, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 115, TOOLS_POST_TIME[ms]: 54, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME[ms]: 53, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME[ms]: 71, TOOLS_QUANTIFIERELIM_APPLICATIONS: 134, TOOLS_QUANTIFIERELIM_TIME[ms]: 124, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 16, FLUID_QUERY_TIME[ms]: 15, FLUID_QUERIES: 137, FLUID_YES_ANSWERS: 46, DOMAIN_JOIN_APPLICATIONS: 109, DOMAIN_JOIN_TIME[ms]: 4049, DOMAIN_ALPHA_APPLICATIONS: 46, DOMAIN_ALPHA_TIME[ms]: 814, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 78, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 27, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 913, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 912, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 229, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 228, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 12, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 45, DAG_COMPRESSION_PROCESSED_NODES: 3307, DAG_COMPRESSION_RETAINED_NODES: 210, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...