/usr/bin/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_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:39:02,241 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-07 01:39:02,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:39:02,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:39:02,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:39:02,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:39:02,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:39:02,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:39:02,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:39:02,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:39:02,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:39:02,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:39:02,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:39:02,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:39:02,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 01:39:02,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:39:02,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:39:02,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:39:02,325 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 [2019-11-07 01:39:02,354 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:39:02,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:39:02,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:39:02,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:39:02,355 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:39:02,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:39:02,356 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:39:02,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:39:02,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:39:02,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:39:02,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:39:02,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:39:02,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:39:02,357 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:39:02,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:39:02,357 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:39:02,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:39:02,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:39:02,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:39:02,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:39:02,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:39:02,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:39:02,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:39:02,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:39:02,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:39:02,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:39:02,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:39:02,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:39:02,365 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 [2019-11-07 01:39:02,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:39:02,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:39:02,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:39:02,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:39:02,684 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:39:02,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31.c [2019-11-07 01:39:02,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203859cf4/3f707aba79ea4764a59a75a4dff47250/FLAG2d39d5675 [2019-11-07 01:39:03,298 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:39:03,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label31.c [2019-11-07 01:39:03,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203859cf4/3f707aba79ea4764a59a75a4dff47250/FLAG2d39d5675 [2019-11-07 01:39:03,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203859cf4/3f707aba79ea4764a59a75a4dff47250 [2019-11-07 01:39:03,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:39:03,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:39:03,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:39:03,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:39:03,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:39:03,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:03" (1/1) ... [2019-11-07 01:39:03,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120a0594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:03, skipping insertion in model container [2019-11-07 01:39:03,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:03" (1/1) ... [2019-11-07 01:39:03,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:39:03,647 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:39:04,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:39:04,180 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:39:04,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:39:04,284 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:39:04,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04 WrapperNode [2019-11-07 01:39:04,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:39:04,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:39:04,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:39:04,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:39:04,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (1/1) ... [2019-11-07 01:39:04,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:39:04,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:39:04,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:39:04,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:39:04,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (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 [2019-11-07 01:39:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:39:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:39:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:39:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:39:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:39:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:39:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:39:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:39:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:39:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:39:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:39:06,400 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:39:06,401 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:39:06,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:39:06 BoogieIcfgContainer [2019-11-07 01:39:06,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:39:06,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:39:06,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:39:06,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:39:06,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:39:03" (1/3) ... [2019-11-07 01:39:06,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a546b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:39:06, skipping insertion in model container [2019-11-07 01:39:06,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:04" (2/3) ... [2019-11-07 01:39:06,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a546b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:39:06, skipping insertion in model container [2019-11-07 01:39:06,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:39:06" (3/3) ... [2019-11-07 01:39:06,411 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2019-11-07 01:39:06,421 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:39:06,429 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:39:06,441 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:39:06,467 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:39:06,468 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:39:06,468 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:39:06,468 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:39:06,469 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:39:06,469 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:39:06,469 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:39:06,469 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:39:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-07 01:39:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-07 01:39:06,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:39:06,505 INFO L410 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] [2019-11-07 01:39:06,507 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:39:06,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:39:06,514 INFO L82 PathProgramCache]: Analyzing trace with hash -219361481, now seen corresponding path program 1 times [2019-11-07 01:39:06,524 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:39:06,524 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273700284] [2019-11-07 01:39:06,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:39:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:39:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:06,977 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273700284] [2019-11-07 01:39:06,978 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:39:06,978 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:39:06,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150399460] [2019-11-07 01:39:06,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:39:06,990 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:39:07,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:39:07,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:39:07,008 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-11-07 01:39:07,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:39:07,627 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-11-07 01:39:07,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:39:07,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-11-07 01:39:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:39:07,658 INFO L225 Difference]: With dead ends: 273 [2019-11-07 01:39:07,659 INFO L226 Difference]: Without dead ends: 175 [2019-11-07 01:39:07,665 INFO L630 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 [2019-11-07 01:39:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-07 01:39:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-11-07 01:39:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-07 01:39:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 317 transitions. [2019-11-07 01:39:07,740 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 317 transitions. Word has length 86 [2019-11-07 01:39:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:39:07,742 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 317 transitions. [2019-11-07 01:39:07,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:39:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 317 transitions. [2019-11-07 01:39:07,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-07 01:39:07,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:39:07,748 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2019-11-07 01:39:07,749 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:39:07,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:39:07,749 INFO L82 PathProgramCache]: Analyzing trace with hash -11024921, now seen corresponding path program 1 times [2019-11-07 01:39:07,750 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:39:07,750 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529595858] [2019-11-07 01:39:07,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:39:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:39:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:07,914 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529595858] [2019-11-07 01:39:07,914 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:39:07,914 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:39:07,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935760696] [2019-11-07 01:39:07,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:39:07,917 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:39:07,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:39:07,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:39:07,917 INFO L87 Difference]: Start difference. First operand 175 states and 317 transitions. Second operand 6 states. [2019-11-07 01:39:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:39:08,521 INFO L93 Difference]: Finished difference Result 531 states and 984 transitions. [2019-11-07 01:39:08,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:39:08,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-11-07 01:39:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:39:08,527 INFO L225 Difference]: With dead ends: 531 [2019-11-07 01:39:08,527 INFO L226 Difference]: Without dead ends: 361 [2019-11-07 01:39:08,530 INFO L630 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 [2019-11-07 01:39:08,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-11-07 01:39:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 355. [2019-11-07 01:39:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-11-07 01:39:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 626 transitions. [2019-11-07 01:39:08,589 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 626 transitions. Word has length 104 [2019-11-07 01:39:08,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:39:08,590 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 626 transitions. [2019-11-07 01:39:08,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:39:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 626 transitions. [2019-11-07 01:39:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-07 01:39:08,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:39:08,595 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2019-11-07 01:39:08,595 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:39:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:39:08,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1798887124, now seen corresponding path program 1 times [2019-11-07 01:39:08,596 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:39:08,596 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864608348] [2019-11-07 01:39:08,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:39:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:39:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:08,678 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864608348] [2019-11-07 01:39:08,678 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861787267] [2019-11-07 01:39:08,678 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 [2019-11-07 01:39:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:39:08,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:39:08,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:39:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:08,903 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:39:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:08,990 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [128807212] [2019-11-07 01:39:09,021 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-11-07 01:39:09,022 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:39:09,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:39:09,043 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:39:09,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:39:09,252 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 87 for LOIs [2019-11-07 01:39:10,368 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 87 for LOIs [2019-11-07 01:39:14,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2019-11-07 01:39:14,192 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5748 conjuctions. This might take some time... [2019-11-07 01:39:14,342 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2019-11-07 01:39:14,439 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5748 conjuctions. This might take some time... [2019-11-07 01:39:14,632 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2019-11-07 01:39:14,688 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5748 conjuctions. This might take some time... [2019-11-07 01:39:16,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-11-07 01:39:16,738 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 01:39:17,147 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2019-11-07 01:39:18,118 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 98 [2019-11-07 01:39:19,303 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 148 DAG size of output: 102 [2019-11-07 01:39:19,584 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2019-11-07 01:39:19,825 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2019-11-07 01:39:20,063 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-11-07 01:39:20,361 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-11-07 01:39:20,698 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2019-11-07 01:39:21,020 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2019-11-07 01:39:21,403 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-11-07 01:39:25,534 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 01:39:25,534 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6, 5, 5] total 22 [2019-11-07 01:39:25,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397575260] [2019-11-07 01:39:25,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 01:39:25,537 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:39:25,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 01:39:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-11-07 01:39:25,538 INFO L87 Difference]: Start difference. First operand 355 states and 626 transitions. Second operand 14 states. [2019-11-07 01:39:25,737 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-07 01:39:26,127 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2019-11-07 01:39:26,772 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2019-11-07 01:39:27,515 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 95 [2019-11-07 01:39:27,843 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-11-07 01:39:28,175 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 93 [2019-11-07 01:39:31,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:39:31,094 INFO L93 Difference]: Finished difference Result 890 states and 1557 transitions. [2019-11-07 01:39:31,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 01:39:31,095 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 112 [2019-11-07 01:39:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:39:31,098 INFO L225 Difference]: With dead ends: 890 [2019-11-07 01:39:31,098 INFO L226 Difference]: Without dead ends: 540 [2019-11-07 01:39:31,104 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 237 SyntacticMatches, 84 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1651 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2019-11-07 01:39:31,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-11-07 01:39:31,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 532. [2019-11-07 01:39:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2019-11-07 01:39:31,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 819 transitions. [2019-11-07 01:39:31,147 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 819 transitions. Word has length 112 [2019-11-07 01:39:31,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:39:31,147 INFO L462 AbstractCegarLoop]: Abstraction has 532 states and 819 transitions. [2019-11-07 01:39:31,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 01:39:31,148 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 819 transitions. [2019-11-07 01:39:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-07 01:39:31,153 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:39:31,153 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:39:31,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:39:31,364 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:39:31,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:39:31,365 INFO L82 PathProgramCache]: Analyzing trace with hash -478264390, now seen corresponding path program 1 times [2019-11-07 01:39:31,365 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:39:31,365 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75206797] [2019-11-07 01:39:31,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:39:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:39:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:31,603 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75206797] [2019-11-07 01:39:31,603 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059979817] [2019-11-07 01:39:31,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:39:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:39:31,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:39:31,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:39:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:31,748 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:39:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:39:31,807 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1777477529] [2019-11-07 01:39:31,811 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-11-07 01:39:31,811 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:39:31,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:39:31,812 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:39:31,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:39:31,877 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 85 for LOIs [2019-11-07 01:39:32,786 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 87 for LOIs [2019-11-07 01:39:35,626 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2019-11-07 01:39:35,673 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5748 conjuctions. This might take some time... [2019-11-07 01:39:35,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2019-11-07 01:39:35,871 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5748 conjuctions. This might take some time... [2019-11-07 01:39:36,115 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2019-11-07 01:39:36,192 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5748 conjuctions. This might take some time... [2019-11-07 01:39:38,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-11-07 01:39:38,594 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 01:39:38,895 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-11-07 01:39:39,199 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-11-07 01:39:39,524 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2019-11-07 01:39:39,822 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2019-11-07 01:39:40,068 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2019-11-07 01:39:40,316 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-11-07 01:39:40,657 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2019-11-07 01:39:41,023 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-11-07 01:39:41,428 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-11-07 01:39:42,102 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76