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/Problem01_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:40:36,394 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-15 01:40:36,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:40:36,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:40:36,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:40:36,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:40:36,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:40:36,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:40:36,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:40:36,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:40:36,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:40:36,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:40:36,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:40:36,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:40:36,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:40:36,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:40:36,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:40:36,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:40:36,474 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 01:40:36,494 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:40:36,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:40:36,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:40:36,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:40:36,497 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:40:36,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:40:36,497 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:40:36,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:40:36,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:40:36,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:40:36,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:40:36,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:40:36,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:40:36,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:40:36,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:40:36,500 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:40:36,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:40:36,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:40:36,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:40:36,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:40:36,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:40:36,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:40:36,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:40:36,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:40:36,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:40:36,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:40:36,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:40:36,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:40:36,503 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 01:40:36,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:40:36,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:40:36,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:40:36,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:40:36,797 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:40:36,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label48.c [2019-10-15 01:40:36,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc77cf9e4/c0914116165a416991dada53e9b84c78/FLAG49ed40262 [2019-10-15 01:40:37,382 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:40:37,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label48.c [2019-10-15 01:40:37,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc77cf9e4/c0914116165a416991dada53e9b84c78/FLAG49ed40262 [2019-10-15 01:40:37,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc77cf9e4/c0914116165a416991dada53e9b84c78 [2019-10-15 01:40:37,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:40:37,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:40:37,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:37,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:40:37,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:40:37,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:37" (1/1) ... [2019-10-15 01:40:37,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2b11d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:37, skipping insertion in model container [2019-10-15 01:40:37,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:37" (1/1) ... [2019-10-15 01:40:37,703 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:40:37,754 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:40:38,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:38,274 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:40:38,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:38,432 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:40:38,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38 WrapperNode [2019-10-15 01:40:38,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:38,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:40:38,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:40:38,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:40:38,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:40:38,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:40:38,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:40:38,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:40:38,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (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 01:40:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:40:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:40:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:40:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:40:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:40:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:40:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:40:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:40:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:40:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:40:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:40:40,432 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:40:40,432 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:40:40,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:40 BoogieIcfgContainer [2019-10-15 01:40:40,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:40:40,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:40:40,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:40:40,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:40:40,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:40:37" (1/3) ... [2019-10-15 01:40:40,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4e482b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:40, skipping insertion in model container [2019-10-15 01:40:40,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (2/3) ... [2019-10-15 01:40:40,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4e482b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:40, skipping insertion in model container [2019-10-15 01:40:40,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:40" (3/3) ... [2019-10-15 01:40:40,442 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2019-10-15 01:40:40,452 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:40:40,461 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:40:40,473 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:40:40,498 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:40:40,498 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:40:40,498 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:40:40,499 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:40:40,499 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:40:40,499 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:40:40,499 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:40:40,499 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:40:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-15 01:40:40,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 01:40:40,543 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:40,544 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] [2019-10-15 01:40:40,546 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:40,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:40,552 INFO L82 PathProgramCache]: Analyzing trace with hash 826823780, now seen corresponding path program 1 times [2019-10-15 01:40:40,561 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:40,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242904919] [2019-10-15 01:40:40,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:40,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:40,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:40,961 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 01:40:40,962 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242904919] [2019-10-15 01:40:40,963 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:40,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:40,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571704369] [2019-10-15 01:40:40,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:40,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:40,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:40,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:40,987 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-10-15 01:40:41,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:41,526 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-10-15 01:40:41,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:41,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-15 01:40:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:41,552 INFO L225 Difference]: With dead ends: 246 [2019-10-15 01:40:41,552 INFO L226 Difference]: Without dead ends: 157 [2019-10-15 01:40:41,558 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 01:40:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-15 01:40:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-15 01:40:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:40:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 291 transitions. [2019-10-15 01:40:41,670 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 291 transitions. Word has length 77 [2019-10-15 01:40:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:41,671 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 291 transitions. [2019-10-15 01:40:41,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 291 transitions. [2019-10-15 01:40:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:40:41,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:41,680 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:40:41,680 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:41,681 INFO L82 PathProgramCache]: Analyzing trace with hash 579798731, now seen corresponding path program 1 times [2019-10-15 01:40:41,682 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:41,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809947954] [2019-10-15 01:40:41,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:41,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:41,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:41,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809947954] [2019-10-15 01:40:41,922 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:41,922 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:40:41,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544903362] [2019-10-15 01:40:41,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:40:41,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:41,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:40:41,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:40:41,925 INFO L87 Difference]: Start difference. First operand 157 states and 291 transitions. Second operand 4 states. [2019-10-15 01:40:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:42,625 INFO L93 Difference]: Finished difference Result 534 states and 1025 transitions. [2019-10-15 01:40:42,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:40:42,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-10-15 01:40:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:42,630 INFO L225 Difference]: With dead ends: 534 [2019-10-15 01:40:42,631 INFO L226 Difference]: Without dead ends: 382 [2019-10-15 01:40:42,633 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 01:40:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-15 01:40:42,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 307. [2019-10-15 01:40:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2019-10-15 01:40:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 535 transitions. [2019-10-15 01:40:42,658 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 535 transitions. Word has length 94 [2019-10-15 01:40:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:42,659 INFO L462 AbstractCegarLoop]: Abstraction has 307 states and 535 transitions. [2019-10-15 01:40:42,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:40:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 535 transitions. [2019-10-15 01:40:42,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-15 01:40:42,662 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:42,663 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:40:42,663 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:42,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1740714549, now seen corresponding path program 1 times [2019-10-15 01:40:42,664 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:42,664 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053869535] [2019-10-15 01:40:42,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:42,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:42,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:42,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053869535] [2019-10-15 01:40:42,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:42,772 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:42,772 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986462765] [2019-10-15 01:40:42,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:42,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:42,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:42,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:42,774 INFO L87 Difference]: Start difference. First operand 307 states and 535 transitions. Second operand 3 states. [2019-10-15 01:40:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:43,196 INFO L93 Difference]: Finished difference Result 909 states and 1630 transitions. [2019-10-15 01:40:43,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:43,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2019-10-15 01:40:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:43,202 INFO L225 Difference]: With dead ends: 909 [2019-10-15 01:40:43,202 INFO L226 Difference]: Without dead ends: 607 [2019-10-15 01:40:43,205 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 01:40:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2019-10-15 01:40:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 457. [2019-10-15 01:40:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-15 01:40:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 740 transitions. [2019-10-15 01:40:43,240 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 740 transitions. Word has length 111 [2019-10-15 01:40:43,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:43,241 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 740 transitions. [2019-10-15 01:40:43,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:43,241 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 740 transitions. [2019-10-15 01:40:43,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 01:40:43,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:43,247 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:40:43,247 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:43,248 INFO L82 PathProgramCache]: Analyzing trace with hash 315256707, now seen corresponding path program 1 times [2019-10-15 01:40:43,248 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:43,248 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055043724] [2019-10-15 01:40:43,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:43,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:43,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:43,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055043724] [2019-10-15 01:40:43,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:43,427 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:43,427 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323215037] [2019-10-15 01:40:43,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:43,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:43,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:43,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:43,429 INFO L87 Difference]: Start difference. First operand 457 states and 740 transitions. Second operand 6 states. [2019-10-15 01:40:43,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:43,987 INFO L93 Difference]: Finished difference Result 1245 states and 2039 transitions. [2019-10-15 01:40:43,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:43,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2019-10-15 01:40:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:43,994 INFO L225 Difference]: With dead ends: 1245 [2019-10-15 01:40:43,995 INFO L226 Difference]: Without dead ends: 793 [2019-10-15 01:40:43,998 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-15 01:40:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 706. [2019-10-15 01:40:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-15 01:40:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1058 transitions. [2019-10-15 01:40:44,052 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1058 transitions. Word has length 147 [2019-10-15 01:40:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:44,053 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 1058 transitions. [2019-10-15 01:40:44,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1058 transitions. [2019-10-15 01:40:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:40:44,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:44,061 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:40:44,061 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:44,061 INFO L82 PathProgramCache]: Analyzing trace with hash -757791698, now seen corresponding path program 1 times [2019-10-15 01:40:44,062 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:44,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265881863] [2019-10-15 01:40:44,062 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:44,062 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:44,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:40:44,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265881863] [2019-10-15 01:40:44,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:44,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:44,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944225729] [2019-10-15 01:40:44,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:44,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:44,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:44,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:44,215 INFO L87 Difference]: Start difference. First operand 706 states and 1058 transitions. Second operand 3 states. [2019-10-15 01:40:44,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:44,617 INFO L93 Difference]: Finished difference Result 1863 states and 2844 transitions. [2019-10-15 01:40:44,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:44,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-15 01:40:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:44,619 INFO L225 Difference]: With dead ends: 1863 [2019-10-15 01:40:44,619 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:40:44,623 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 01:40:44,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:40:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:40:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:40:44,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:40:44,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2019-10-15 01:40:44,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:44,625 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:40:44,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:44,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:40:44,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:40:44,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:40:44,976 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2019-10-15 01:40:45,021 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~a8~0 |old(~a8~0)|) [2019-10-15 01:40:45,021 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-15 01:40:45,022 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-15 01:40:45,023 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-15 01:40:45,024 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-15 01:40:45,024 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:45,024 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-15 01:40:45,024 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-15 01:40:45,024 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-10-15 01:40:45,024 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-15 01:40:45,025 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:45,026 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:45,027 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-15 01:40:45,027 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-15 01:40:45,027 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-15 01:40:45,027 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 539) no Hoare annotation was computed. [2019-10-15 01:40:45,027 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-15 01:40:45,027 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-15 01:40:45,028 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-15 01:40:45,029 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-15 01:40:45,029 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-15 01:40:45,029 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-15 01:40:45,029 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-15 01:40:45,029 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= 14 |old(~a8~0)|)) (.cse4 (= 5 |old(~a16~0)|)) (.cse1 (not (= 1 |old(~a7~0)|))) (.cse5 (not (= 4 |old(~a16~0)|))) (.cse6 (not (= ~a20~0 1))) (.cse0 (= ~a8~0 |old(~a8~0)|)) (.cse3 (= 13 |old(~a8~0)|)) (.cse7 (= 1 |old(~a20~0)|))) (and (or (and (= 1 ~a7~0) .cse0) .cse1) (or .cse0 .cse2 .cse3) (or (and .cse0 (not (= ~a16~0 5))) .cse4 .cse2) (or (and (= ~a16~0 4) .cse0) .cse5) (or .cse6 (or .cse4 .cse1) .cse7) (or .cse5 .cse6 .cse7) (or (and .cse6 .cse0) .cse3 .cse7))) [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-15 01:40:45,030 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-15 01:40:45,031 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:40:45,032 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= 14 ~a8~0)) (not (= ~a8~0 13))) [2019-10-15 01:40:45,033 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:40:45,033 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:40:45,033 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= ~a8~0 |old(~a8~0)|) (= 14 |old(~a8~0)|) (= 13 |old(~a8~0)|)) [2019-10-15 01:40:45,033 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-10-15 01:40:45,033 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (not (= 14 ~a8~0))) (.cse1 (not (= ~a8~0 13)))) (or (= 1 ~a7~0) (and .cse0 .cse1) (and .cse0 (not (= ~a16~0 5))) (= ~a16~0 4) (= 14 |old(~a8~0)|) (= 13 |old(~a8~0)|) (and (not (= ~a20~0 1)) .cse1))) [2019-10-15 01:40:45,033 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-10-15 01:40:45,033 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-15 01:40:45,034 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= 14 ~a8~0))) (.cse1 (not (= ~a8~0 13)))) (or (= 1 ~a7~0) (and .cse0 .cse1) (and .cse0 (not (= ~a16~0 5))) (= ~a16~0 4) (= 14 |old(~a8~0)|) (= 13 |old(~a8~0)|) (and (not (= ~a20~0 1)) .cse1))) [2019-10-15 01:40:45,034 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-10-15 01:40:45,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:40:45 BoogieIcfgContainer [2019-10-15 01:40:45,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:40:45,053 INFO L168 Benchmark]: Toolchain (without parser) took 7364.11 ms. Allocated memory was 146.8 MB in the beginning and 319.8 MB in the end (delta: 173.0 MB). Free memory was 102.8 MB in the beginning and 146.5 MB in the end (delta: -43.7 MB). Peak memory consumption was 129.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:45,056 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:40:45,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.09 ms. Allocated memory was 146.8 MB in the beginning and 207.1 MB in the end (delta: 60.3 MB). Free memory was 102.4 MB in the beginning and 172.8 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:45,057 INFO L168 Benchmark]: Boogie Preprocessor took 99.98 ms. Allocated memory is still 207.1 MB. Free memory was 172.8 MB in the beginning and 167.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:45,062 INFO L168 Benchmark]: RCFGBuilder took 1900.38 ms. Allocated memory was 207.1 MB in the beginning and 249.0 MB in the end (delta: 41.9 MB). Free memory was 167.9 MB in the beginning and 204.0 MB in the end (delta: -36.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:45,063 INFO L168 Benchmark]: TraceAbstraction took 4614.73 ms. Allocated memory was 249.0 MB in the beginning and 319.8 MB in the end (delta: 70.8 MB). Free memory was 204.0 MB in the beginning and 146.5 MB in the end (delta: 57.5 MB). Peak memory consumption was 128.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:45,066 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.09 ms. Allocated memory was 146.8 MB in the beginning and 207.1 MB in the end (delta: 60.3 MB). Free memory was 102.4 MB in the beginning and 172.8 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.98 ms. Allocated memory is still 207.1 MB. Free memory was 172.8 MB in the beginning and 167.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1900.38 ms. Allocated memory was 207.1 MB in the beginning and 249.0 MB in the end (delta: 41.9 MB). Free memory was 167.9 MB in the beginning and 204.0 MB in the end (delta: -36.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4614.73 ms. Allocated memory was 249.0 MB in the beginning and 319.8 MB in the end (delta: 70.8 MB). Free memory was 204.0 MB in the beginning and 146.5 MB in the end (delta: 57.5 MB). Peak memory consumption was 128.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 539]: 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: 583]: Loop Invariant Derived loop invariant: (((((1 == a7 || (!(14 == a8) && !(a8 == 13))) || (!(14 == a8) && !(a16 == 5))) || a16 == 4) || 14 == \old(a8)) || 13 == \old(a8)) || (!(a20 == 1) && !(a8 == 13)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 512 SDtfs, 410 SDslu, 107 SDs, 0 SdLazy, 1588 SolverSat, 366 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 312 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 43 PreInvPairs, 73 NumberOfFragments, 196 HoareAnnotationTreeSize, 43 FomulaSimplifications, 929 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 444 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 591 NumberOfCodeBlocks, 591 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 228988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 206/206 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...