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/Problem15_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:55:11,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:55:11,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:55:11,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:55:11,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:55:11,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:55:11,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:55:11,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:55:11,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:55:11,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:55:11,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:55:11,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:55:11,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:55:11,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:55:11,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:55:11,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:55:11,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:55:11,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:55:11,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:55:11,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:55:11,647 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 01:55:11,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:55:11,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:55:11,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:55:11,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:55:11,665 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:55:11,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:55:11,665 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:55:11,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:55:11,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:55:11,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:55:11,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:55:11,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:55:11,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:55:11,666 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:55:11,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:55:11,667 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:55:11,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:55:11,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:55:11,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:55:11,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:55:11,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:55:11,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:55:11,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:55:11,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:55:11,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:55:11,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:55:11,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:55:11,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:55:11,670 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 01:55:11,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:55:11,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:55:11,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:55:11,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:55:11,961 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:55:11,961 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label54.c [2019-10-15 01:55:12,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63c3da58/d7d53d6844fa44448c87d1baabff201b/FLAG3f5184d83 [2019-10-15 01:55:12,731 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:55:12,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label54.c [2019-10-15 01:55:12,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63c3da58/d7d53d6844fa44448c87d1baabff201b/FLAG3f5184d83 [2019-10-15 01:55:12,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63c3da58/d7d53d6844fa44448c87d1baabff201b [2019-10-15 01:55:12,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:55:12,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:55:12,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:55:12,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:55:12,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:55:12,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:55:12" (1/1) ... [2019-10-15 01:55:12,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a425a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:12, skipping insertion in model container [2019-10-15 01:55:12,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:55:12" (1/1) ... [2019-10-15 01:55:12,917 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:55:12,998 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:55:13,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:55:13,958 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:55:14,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:55:14,284 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:55:14,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14 WrapperNode [2019-10-15 01:55:14,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:55:14,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:55:14,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:55:14,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:55:14,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (1/1) ... [2019-10-15 01:55:14,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:55:14,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:55:14,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:55:14,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:55:14,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (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 01:55:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:55:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:55:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:55:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-15 01:55:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:55:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:55:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-15 01:55:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:55:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:55:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:55:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:55:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:55:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:55:24,340 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:55:24,340 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:55:24,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:55:24 BoogieIcfgContainer [2019-10-15 01:55:24,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:55:24,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:55:24,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:55:24,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:55:24,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:55:12" (1/3) ... [2019-10-15 01:55:24,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d28905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:55:24, skipping insertion in model container [2019-10-15 01:55:24,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:55:14" (2/3) ... [2019-10-15 01:55:24,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d28905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:55:24, skipping insertion in model container [2019-10-15 01:55:24,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:55:24" (3/3) ... [2019-10-15 01:55:24,352 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label54.c [2019-10-15 01:55:24,364 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:55:24,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:55:24,383 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:55:24,413 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:55:24,414 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:55:24,414 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:55:24,414 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:55:24,414 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:55:24,414 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:55:24,414 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:55:24,414 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:55:24,441 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2019-10-15 01:55:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 01:55:24,448 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:55:24,449 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:55:24,451 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:55:24,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:55:24,457 INFO L82 PathProgramCache]: Analyzing trace with hash 648049517, now seen corresponding path program 1 times [2019-10-15 01:55:24,467 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:55:24,467 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414819414] [2019-10-15 01:55:24,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:24,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:24,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:55:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:55:24,746 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 01:55:24,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414819414] [2019-10-15 01:55:24,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:55:24,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:55:24,749 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297525980] [2019-10-15 01:55:24,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:55:24,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:55:24,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:55:24,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:55:24,771 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 3 states. [2019-10-15 01:55:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:55:27,451 INFO L93 Difference]: Finished difference Result 720 states and 1390 transitions. [2019-10-15 01:55:27,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:55:27,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-15 01:55:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:55:27,481 INFO L225 Difference]: With dead ends: 720 [2019-10-15 01:55:27,481 INFO L226 Difference]: Without dead ends: 473 [2019-10-15 01:55:27,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 3 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 01:55:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-15 01:55:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2019-10-15 01:55:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-15 01:55:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 883 transitions. [2019-10-15 01:55:27,625 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 883 transitions. Word has length 11 [2019-10-15 01:55:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:55:27,627 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 883 transitions. [2019-10-15 01:55:27,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:55:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 883 transitions. [2019-10-15 01:55:27,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 01:55:27,631 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:55:27,631 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] [2019-10-15 01:55:27,632 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:55:27,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:55:27,633 INFO L82 PathProgramCache]: Analyzing trace with hash -723212684, now seen corresponding path program 1 times [2019-10-15 01:55:27,633 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:55:27,633 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141637960] [2019-10-15 01:55:27,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:27,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:27,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:55:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:55:27,842 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 01:55:27,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141637960] [2019-10-15 01:55:27,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:55:27,843 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:55:27,843 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206760628] [2019-10-15 01:55:27,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:55:27,845 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:55:27,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:55:27,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:55:27,846 INFO L87 Difference]: Start difference. First operand 473 states and 883 transitions. Second operand 4 states. [2019-10-15 01:55:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:55:37,456 INFO L93 Difference]: Finished difference Result 1865 states and 3543 transitions. [2019-10-15 01:55:37,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:55:37,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-15 01:55:37,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:55:37,469 INFO L225 Difference]: With dead ends: 1865 [2019-10-15 01:55:37,470 INFO L226 Difference]: Without dead ends: 1397 [2019-10-15 01:55:37,472 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 01:55:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2019-10-15 01:55:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1387. [2019-10-15 01:55:37,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2019-10-15 01:55:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2326 transitions. [2019-10-15 01:55:37,530 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2326 transitions. Word has length 32 [2019-10-15 01:55:37,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:55:37,530 INFO L462 AbstractCegarLoop]: Abstraction has 1387 states and 2326 transitions. [2019-10-15 01:55:37,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:55:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2326 transitions. [2019-10-15 01:55:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-15 01:55:37,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:55:37,534 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] [2019-10-15 01:55:37,534 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:55:37,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:55:37,535 INFO L82 PathProgramCache]: Analyzing trace with hash -943048960, now seen corresponding path program 1 times [2019-10-15 01:55:37,535 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:55:37,536 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325003573] [2019-10-15 01:55:37,536 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:37,536 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:37,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:55:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:55:37,696 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 01:55:37,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325003573] [2019-10-15 01:55:37,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:55:37,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:55:37,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483943089] [2019-10-15 01:55:37,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:55:37,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:55:37,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:55:37,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:55:37,704 INFO L87 Difference]: Start difference. First operand 1387 states and 2326 transitions. Second operand 6 states. [2019-10-15 01:55:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:55:41,932 INFO L93 Difference]: Finished difference Result 3742 states and 6527 transitions. [2019-10-15 01:55:41,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:55:41,934 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-10-15 01:55:41,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:55:41,953 INFO L225 Difference]: With dead ends: 3742 [2019-10-15 01:55:41,954 INFO L226 Difference]: Without dead ends: 2360 [2019-10-15 01:55:41,958 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 01:55:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2019-10-15 01:55:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2306. [2019-10-15 01:55:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2306 states. [2019-10-15 01:55:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3772 transitions. [2019-10-15 01:55:42,048 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3772 transitions. Word has length 49 [2019-10-15 01:55:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:55:42,048 INFO L462 AbstractCegarLoop]: Abstraction has 2306 states and 3772 transitions. [2019-10-15 01:55:42,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:55:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3772 transitions. [2019-10-15 01:55:42,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 01:55:42,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:55:42,052 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] [2019-10-15 01:55:42,052 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:55:42,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:55:42,053 INFO L82 PathProgramCache]: Analyzing trace with hash -892161448, now seen corresponding path program 1 times [2019-10-15 01:55:42,053 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:55:42,053 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079276486] [2019-10-15 01:55:42,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:42,054 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:42,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:55:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:55:42,186 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 01:55:42,186 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079276486] [2019-10-15 01:55:42,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:55:42,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:55:42,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272747251] [2019-10-15 01:55:42,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:55:42,187 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:55:42,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:55:42,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:55:42,188 INFO L87 Difference]: Start difference. First operand 2306 states and 3772 transitions. Second operand 5 states. [2019-10-15 01:55:45,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:55:45,973 INFO L93 Difference]: Finished difference Result 5366 states and 9036 transitions. [2019-10-15 01:55:45,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:55:45,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-10-15 01:55:45,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:55:45,990 INFO L225 Difference]: With dead ends: 5366 [2019-10-15 01:55:45,990 INFO L226 Difference]: Without dead ends: 3065 [2019-10-15 01:55:45,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:55:45,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2019-10-15 01:55:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3040. [2019-10-15 01:55:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3040 states. [2019-10-15 01:55:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 4738 transitions. [2019-10-15 01:55:46,073 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 4738 transitions. Word has length 53 [2019-10-15 01:55:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:55:46,074 INFO L462 AbstractCegarLoop]: Abstraction has 3040 states and 4738 transitions. [2019-10-15 01:55:46,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:55:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 4738 transitions. [2019-10-15 01:55:46,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-15 01:55:46,077 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:55:46,077 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:55:46,077 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:55:46,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:55:46,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1442952264, now seen corresponding path program 1 times [2019-10-15 01:55:46,078 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:55:46,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671432097] [2019-10-15 01:55:46,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:46,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:55:46,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:55:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:55:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:55:46,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671432097] [2019-10-15 01:55:46,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980845288] [2019-10-15 01:55:46,175 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 01:55:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:55:46,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:55:46,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:55:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:55:46,354 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:55:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:55:46,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [753036405] [2019-10-15 01:55:46,494 INFO L162 IcfgInterpreter]: Started Sifa with 49 locations of interest [2019-10-15 01:55:46,495 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:55:46,501 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:55:46,513 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:55:46,514 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:55:46,749 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 56 for LOIs [2019-10-15 01:55:46,882 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 34 [2019-10-15 01:55:47,238 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5333 conjuctions. This might take some time... [2019-10-15 01:55:47,389 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 34 [2019-10-15 01:55:47,507 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5333 conjuctions. This might take some time... [2019-10-15 01:55:47,597 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2019-10-15 01:55:47,713 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5257 conjuctions. This might take some time... [2019-10-15 01:55:47,805 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2019-10-15 01:55:47,982 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5257 conjuctions. This might take some time... [2019-10-15 01:55:48,293 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2019-10-15 01:55:48,393 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5257 conjuctions. This might take some time... [2019-10-15 01:55:49,072 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 80 for LOIs [2019-10-15 01:55:49,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36