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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:42:51,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:42:51,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:42:51,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:42:51,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:42:51,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:42:51,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:42:51,271 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 01:42:51,286 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:42:51,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:42:51,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:42:51,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:42:51,290 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:42:51,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:42:51,290 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:42:51,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:42:51,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:42:51,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:42:51,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:42:51,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:42:51,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:42:51,292 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:42:51,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:42:51,293 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:42:51,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:42:51,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:42:51,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:42:51,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:42:51,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:42:51,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:42:51,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:42:51,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:42:51,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:42:51,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:42:51,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:42:51,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:42:51,296 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 01:42:51,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:42:51,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:42:51,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:42:51,588 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:42:51,589 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:42:51,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2019-10-15 01:42:51,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e775d93d7/eb4d8135a48548ab8923a1027cec844f/FLAG8d48209ea [2019-10-15 01:42:52,218 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:42:52,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2019-10-15 01:42:52,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e775d93d7/eb4d8135a48548ab8923a1027cec844f/FLAG8d48209ea [2019-10-15 01:42:52,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e775d93d7/eb4d8135a48548ab8923a1027cec844f [2019-10-15 01:42:52,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:42:52,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:42:52,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:42:52,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:42:52,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:42:52,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:52" (1/1) ... [2019-10-15 01:42:52,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c32c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:52, skipping insertion in model container [2019-10-15 01:42:52,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:52" (1/1) ... [2019-10-15 01:42:52,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:42:52,560 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:42:53,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:42:53,009 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:42:53,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:42:53,157 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:42:53,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53 WrapperNode [2019-10-15 01:42:53,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:42:53,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:42:53,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:42:53,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:42:53,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (1/1) ... [2019-10-15 01:42:53,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:42:53,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:42:53,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:42:53,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:42:53,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (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 01:42:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:42:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:42:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:42:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:42:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:42:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:42:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:42:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:42:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:42:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:42:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:42:55,341 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:42:55,344 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:42:55,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:55 BoogieIcfgContainer [2019-10-15 01:42:55,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:42:55,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:42:55,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:42:55,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:42:55,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:42:52" (1/3) ... [2019-10-15 01:42:55,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dec9ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:55, skipping insertion in model container [2019-10-15 01:42:55,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:53" (2/3) ... [2019-10-15 01:42:55,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dec9ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:55, skipping insertion in model container [2019-10-15 01:42:55,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:55" (3/3) ... [2019-10-15 01:42:55,359 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2019-10-15 01:42:55,372 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:42:55,381 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:42:55,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:42:55,425 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:42:55,425 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:42:55,427 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:42:55,427 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:42:55,428 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:42:55,428 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:42:55,428 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:42:55,428 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:42:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 01:42:55,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 01:42:55,480 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:55,481 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 01:42:55,484 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:55,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:55,490 INFO L82 PathProgramCache]: Analyzing trace with hash -219363017, now seen corresponding path program 1 times [2019-10-15 01:42:55,501 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:55,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932282631] [2019-10-15 01:42:55,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:55,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:55,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:56,033 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 01:42:56,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932282631] [2019-10-15 01:42:56,035 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:42:56,036 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:42:56,036 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678700167] [2019-10-15 01:42:56,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:42:56,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:56,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:42:56,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:42:56,064 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-15 01:42:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:56,631 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-15 01:42:56,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:42:56,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-15 01:42:56,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:56,657 INFO L225 Difference]: With dead ends: 273 [2019-10-15 01:42:56,657 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 01:42:56,663 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 01:42:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 01:42:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-15 01:42:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-15 01:42:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 312 transitions. [2019-10-15 01:42:56,758 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 312 transitions. Word has length 86 [2019-10-15 01:42:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:56,759 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 312 transitions. [2019-10-15 01:42:56,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:42:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 312 transitions. [2019-10-15 01:42:56,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:42:56,764 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:56,765 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 01:42:56,765 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:56,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:56,766 INFO L82 PathProgramCache]: Analyzing trace with hash -701897796, now seen corresponding path program 1 times [2019-10-15 01:42:56,766 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:56,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897459735] [2019-10-15 01:42:56,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:56,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:56,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:56,954 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 01:42:56,955 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897459735] [2019-10-15 01:42:56,956 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:42:56,956 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:42:56,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186799371] [2019-10-15 01:42:56,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:42:56,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:56,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:42:56,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:42:56,959 INFO L87 Difference]: Start difference. First operand 175 states and 312 transitions. Second operand 3 states. [2019-10-15 01:42:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:57,339 INFO L93 Difference]: Finished difference Result 513 states and 937 transitions. [2019-10-15 01:42:57,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:42:57,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-15 01:42:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:57,344 INFO L225 Difference]: With dead ends: 513 [2019-10-15 01:42:57,344 INFO L226 Difference]: Without dead ends: 343 [2019-10-15 01:42:57,346 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 01:42:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-15 01:42:57,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-15 01:42:57,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 01:42:57,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 575 transitions. [2019-10-15 01:42:57,370 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 575 transitions. Word has length 94 [2019-10-15 01:42:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:57,370 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 575 transitions. [2019-10-15 01:42:57,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:42:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 575 transitions. [2019-10-15 01:42:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-15 01:42:57,375 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:57,375 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:42:57,375 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:57,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1307301473, now seen corresponding path program 1 times [2019-10-15 01:42:57,376 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:57,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569897892] [2019-10-15 01:42:57,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:57,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:57,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:57,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569897892] [2019-10-15 01:42:57,461 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:42:57,461 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:42:57,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740422388] [2019-10-15 01:42:57,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:42:57,462 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:57,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:42:57,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:42:57,463 INFO L87 Difference]: Start difference. First operand 343 states and 575 transitions. Second operand 6 states. [2019-10-15 01:42:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:58,152 INFO L93 Difference]: Finished difference Result 1059 states and 1887 transitions. [2019-10-15 01:42:58,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:42:58,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-10-15 01:42:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:58,165 INFO L225 Difference]: With dead ends: 1059 [2019-10-15 01:42:58,165 INFO L226 Difference]: Without dead ends: 721 [2019-10-15 01:42:58,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 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 01:42:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-10-15 01:42:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 703. [2019-10-15 01:42:58,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-15 01:42:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1169 transitions. [2019-10-15 01:42:58,231 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1169 transitions. Word has length 108 [2019-10-15 01:42:58,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:58,232 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 1169 transitions. [2019-10-15 01:42:58,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:42:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1169 transitions. [2019-10-15 01:42:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 01:42:58,238 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:58,239 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:58,239 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:58,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:58,239 INFO L82 PathProgramCache]: Analyzing trace with hash -89307916, now seen corresponding path program 1 times [2019-10-15 01:42:58,240 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:58,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992652571] [2019-10-15 01:42:58,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:58,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:58,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:58,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992652571] [2019-10-15 01:42:58,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125777564] [2019-10-15 01:42:58,394 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 01:42:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:58,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:42:58,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:42:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:58,707 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:42:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:58,808 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1001804931] [2019-10-15 01:42:58,839 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-15 01:42:58,840 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:42:58,845 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:42:58,853 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:42:58,854 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:42:59,196 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-15 01:43:01,273 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 87 for LOIs [2019-10-15 01:43:10,420 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 24 [2019-10-15 01:43:10,578 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 13664 conjuctions. This might take some time... [2019-10-15 01:43:11,381 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2019-10-15 01:43:11,563 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 22288 conjuctions. This might take some time... [2019-10-15 01:43:12,653 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2019-10-15 01:43:12,794 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 22288 conjuctions. This might take some time... [2019-10-15 01:43:14,063 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-10-15 01:43:14,078 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 01:43:14,368 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-10-15 01:43:14,609 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-10-15 01:43:14,907 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-10-15 01:43:15,203 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2019-10-15 01:43:15,671 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 82 [2019-10-15 01:43:15,955 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-10-15 01:43:16,209 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2019-10-15 01:43:16,493 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2019-10-15 01:43:17,058 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2019-10-15 01:43:17,657 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 77 [2019-10-15 01:43:17,925 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-10-15 01:43:22,187 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 01:43:22,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 12] total 25 [2019-10-15 01:43:22,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757840439] [2019-10-15 01:43:22,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 01:43:22,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:22,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 01:43:22,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:43:22,191 INFO L87 Difference]: Start difference. First operand 703 states and 1169 transitions. Second operand 25 states. [2019-10-15 01:43:22,497 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-10-15 01:43:22,878 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 93 [2019-10-15 01:43:23,293 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2019-10-15 01:43:23,704 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 96 [2019-10-15 01:43:24,072 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-10-15 01:43:24,435 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-10-15 01:43:25,950 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-10-15 01:43:26,238 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-10-15 01:43:30,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:30,636 INFO L93 Difference]: Finished difference Result 2272 states and 4213 transitions. [2019-10-15 01:43:30,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:43:30,637 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127 [2019-10-15 01:43:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:30,640 INFO L225 Difference]: With dead ends: 2272 [2019-10-15 01:43:30,640 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:43:30,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 281 SyntacticMatches, 98 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2120 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=588, Invalid=1862, Unknown=0, NotChecked=0, Total=2450 [2019-10-15 01:43:30,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:43:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:43:30,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:43:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:43:30,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 127 [2019-10-15 01:43:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:30,654 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:43:30,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-15 01:43:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:43:30,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:43:30,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:43:30,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:43:31,076 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-10-15 01:43:31,340 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 87