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_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:43:16,147 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-15 01:43:16,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:43:16,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:43:16,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:43:16,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:43:16,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:43:16,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:43:16,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:43:16,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:43:16,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:43:16,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:43:16,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:43:16,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:43:16,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:43:16,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:43:16,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:43:16,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:43:16,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:43:16,223 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:43:16,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:43:16,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:43:16,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:43:16,225 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:43:16,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:43:16,225 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:43:16,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:43:16,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:43:16,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:43:16,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:43:16,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:43:16,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:43:16,227 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:43:16,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:43:16,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:43:16,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:43:16,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:43:16,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:43:16,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:43:16,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:43:16,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:43:16,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:43:16,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:43:16,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:43:16,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:43:16,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:43:16,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:43:16,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:43:16,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:43:16,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:43:16,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:43:16,568 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:43:16,568 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:43:16,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2019-10-15 01:43:16,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5b2e934/48e38b48b209410c9873483f30fdd47c/FLAGfb3d3abcc [2019-10-15 01:43:17,199 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:43:17,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2019-10-15 01:43:17,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5b2e934/48e38b48b209410c9873483f30fdd47c/FLAGfb3d3abcc [2019-10-15 01:43:17,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5b2e934/48e38b48b209410c9873483f30fdd47c [2019-10-15 01:43:17,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:43:17,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:43:17,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:43:17,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:43:17,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:43:17,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:17" (1/1) ... [2019-10-15 01:43:17,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134703a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:17, skipping insertion in model container [2019-10-15 01:43:17,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:17" (1/1) ... [2019-10-15 01:43:17,546 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:43:17,603 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:43:18,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:43:18,140 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:43:18,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:43:18,280 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:43:18,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18 WrapperNode [2019-10-15 01:43:18,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:43:18,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:43:18,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:43:18,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:43:18,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... [2019-10-15 01:43:18,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:43:18,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:43:18,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:43:18,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:43:18,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:43:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:43:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:43:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:43:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:43:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:43:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:43:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:43:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:43:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:43:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:43:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:43:20,477 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:43:20,477 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:43:20,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:20 BoogieIcfgContainer [2019-10-15 01:43:20,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:43:20,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:43:20,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:43:20,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:43:20,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:43:17" (1/3) ... [2019-10-15 01:43:20,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:20, skipping insertion in model container [2019-10-15 01:43:20,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:18" (2/3) ... [2019-10-15 01:43:20,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:20, skipping insertion in model container [2019-10-15 01:43:20,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:20" (3/3) ... [2019-10-15 01:43:20,487 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label57.c [2019-10-15 01:43:20,497 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:43:20,505 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:43:20,516 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:43:20,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:43:20,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:43:20,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:43:20,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:43:20,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:43:20,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:43:20,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:43:20,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:43:20,562 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 01:43:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 01:43:20,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:20,573 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:20,575 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:20,580 INFO L82 PathProgramCache]: Analyzing trace with hash -219367881, now seen corresponding path program 1 times [2019-10-15 01:43:20,588 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:20,588 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070312964] [2019-10-15 01:43:20,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:20,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:20,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:20,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070312964] [2019-10-15 01:43:20,985 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:20,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:43:20,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780197987] [2019-10-15 01:43:20,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:20,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:21,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:21,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:21,014 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-15 01:43:21,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:21,588 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-15 01:43:21,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:21,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-15 01:43:21,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:21,607 INFO L225 Difference]: With dead ends: 273 [2019-10-15 01:43:21,608 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 01:43:21,614 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 01:43:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-15 01:43:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-15 01:43:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 317 transitions. [2019-10-15 01:43:21,694 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 317 transitions. Word has length 86 [2019-10-15 01:43:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:21,697 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 317 transitions. [2019-10-15 01:43:21,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 317 transitions. [2019-10-15 01:43:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-15 01:43:21,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:21,714 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:21,715 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:21,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:21,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2133060918, now seen corresponding path program 1 times [2019-10-15 01:43:21,716 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:21,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773722000] [2019-10-15 01:43:21,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:21,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:21,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:21,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773722000] [2019-10-15 01:43:21,971 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:21,971 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:43:21,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638638678] [2019-10-15 01:43:21,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:21,974 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:21,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:21,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:21,975 INFO L87 Difference]: Start difference. First operand 175 states and 317 transitions. Second operand 3 states. [2019-10-15 01:43:22,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:22,352 INFO L93 Difference]: Finished difference Result 513 states and 950 transitions. [2019-10-15 01:43:22,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:22,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-15 01:43:22,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:22,359 INFO L225 Difference]: With dead ends: 513 [2019-10-15 01:43:22,359 INFO L226 Difference]: Without dead ends: 343 [2019-10-15 01:43:22,361 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:22,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-15 01:43:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-15 01:43:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 01:43:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 603 transitions. [2019-10-15 01:43:22,403 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 603 transitions. Word has length 99 [2019-10-15 01:43:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:22,403 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 603 transitions. [2019-10-15 01:43:22,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 603 transitions. [2019-10-15 01:43:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-15 01:43:22,407 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:22,408 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:43:22,408 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:22,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:22,412 INFO L82 PathProgramCache]: Analyzing trace with hash 29488385, now seen corresponding path program 1 times [2019-10-15 01:43:22,412 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:22,413 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337508267] [2019-10-15 01:43:22,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:22,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:22,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:43:22,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337508267] [2019-10-15 01:43:22,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944658222] [2019-10-15 01:43:22,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:43:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:22,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:43:22,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:43:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:22,883 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:43:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:22,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1901647310] [2019-10-15 01:43:23,057 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-15 01:43:23,058 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:43:23,064 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:43:23,071 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:43:23,072 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:43:23,417 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-15 01:43:26,254 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 86 for LOIs [2019-10-15 01:43:31,317 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 01:43:31,345 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-10-15 01:43:31,428 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-10-15 01:43:31,536 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-10-15 01:43:31,558 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 01:43:31,786 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-10-15 01:43:32,067 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-10-15 01:43:32,346 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-10-15 01:43:32,670 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2019-10-15 01:43:32,932 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2019-10-15 01:43:33,166 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2019-10-15 01:43:33,422 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-10-15 01:43:34,005 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2019-10-15 01:43:34,627 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 82 [2019-10-15 01:43:34,872 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2019-10-15 01:43:39,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:43:39,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 5, 5] total 21 [2019-10-15 01:43:39,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825754110] [2019-10-15 01:43:39,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:43:39,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:39,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:43:39,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:43:39,665 INFO L87 Difference]: Start difference. First operand 343 states and 603 transitions. Second operand 13 states. [2019-10-15 01:43:39,981 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-10-15 01:43:40,356 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2019-10-15 01:43:40,760 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 99 [2019-10-15 01:43:41,178 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 96 [2019-10-15 01:43:41,522 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-10-15 01:43:41,897 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 95 [2019-10-15 01:43:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:44,517 INFO L93 Difference]: Finished difference Result 863 states and 1495 transitions. [2019-10-15 01:43:44,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:43:44,517 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 169 [2019-10-15 01:43:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:44,522 INFO L225 Difference]: With dead ends: 863 [2019-10-15 01:43:44,522 INFO L226 Difference]: Without dead ends: 525 [2019-10-15 01:43:44,525 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 356 SyntacticMatches, 140 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2019-10-15 01:43:44,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2019-10-15 01:43:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 522. [2019-10-15 01:43:44,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2019-10-15 01:43:44,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 798 transitions. [2019-10-15 01:43:44,565 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 798 transitions. Word has length 169 [2019-10-15 01:43:44,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:44,566 INFO L462 AbstractCegarLoop]: Abstraction has 522 states and 798 transitions. [2019-10-15 01:43:44,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:43:44,566 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 798 transitions. [2019-10-15 01:43:44,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 01:43:44,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:44,569 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:43:44,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:43:44,774 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:44,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:44,775 INFO L82 PathProgramCache]: Analyzing trace with hash -641555946, now seen corresponding path program 1 times [2019-10-15 01:43:44,775 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:44,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019948863] [2019-10-15 01:43:44,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:44,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:44,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 88 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:43:44,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019948863] [2019-10-15 01:43:44,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892054896] [2019-10-15 01:43:44,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:43:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:45,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:43:45,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:43:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:43:45,211 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:43:45,307 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:43:45,307 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1379746001] [2019-10-15 01:43:45,311 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-15 01:43:45,311 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:43:45,312 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:43:45,313 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:43:45,313 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:43:45,420 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-15 01:43:46,509 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 84 for LOIs [2019-10-15 01:43:48,287 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-10-15 01:43:48,299 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-10-15 01:43:48,327 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-10-15 01:43:48,367 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-10-15 01:43:48,379 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 01:43:48,603 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-10-15 01:43:48,899 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-10-15 01:43:49,564 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 101 [2019-10-15 01:43:49,837 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2019-10-15 01:43:50,112 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-10-15 01:43:50,350 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2019-10-15 01:43:50,606 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2019-10-15 01:43:50,829 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-10-15 01:43:51,101 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2019-10-15 01:43:51,420 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 76