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/Problem03_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:43:59,453 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-15 01:43:59,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:43:59,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:43:59,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:43:59,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:43:59,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:43:59,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:43:59,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:43:59,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:43:59,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:43:59,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:43:59,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:43:59,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:43:59,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:43:59,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:43:59,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:43:59,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:43:59,500 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 01:43:59,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:43:59,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:43:59,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:43:59,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:43:59,517 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:43:59,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:43:59,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:43:59,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:43:59,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:43:59,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:43:59,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:43:59,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:43:59,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:43:59,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:43:59,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:43:59,520 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:43:59,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:43:59,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:43:59,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:43:59,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:43:59,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:43:59,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:43:59,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:43:59,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:43:59,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:43:59,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:43:59,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:43:59,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:43:59,523 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 01:43:59,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:43:59,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:43:59,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:43:59,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:43:59,886 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:43:59,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label45.c [2019-10-15 01:43:59,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cadb3715/6792e1445d2849729046b509d384a7e3/FLAG6ab184b73 [2019-10-15 01:44:00,522 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:44:00,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label45.c [2019-10-15 01:44:00,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cadb3715/6792e1445d2849729046b509d384a7e3/FLAG6ab184b73 [2019-10-15 01:44:00,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cadb3715/6792e1445d2849729046b509d384a7e3 [2019-10-15 01:44:00,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:44:00,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:44:00,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:44:00,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:44:00,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:44:00,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:44:00" (1/1) ... [2019-10-15 01:44:00,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52da3fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:00, skipping insertion in model container [2019-10-15 01:44:00,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:44:00" (1/1) ... [2019-10-15 01:44:00,803 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:44:00,880 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:44:01,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:44:01,672 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:44:01,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:44:01,930 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:44:01,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01 WrapperNode [2019-10-15 01:44:01,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:44:01,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:44:01,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:44:01,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:44:01,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:01,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:01,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:01,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:02,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:02,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:02,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (1/1) ... [2019-10-15 01:44:02,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:44:02,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:44:02,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:44:02,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:44:02,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (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 01:44:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:44:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:44:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:44:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:44:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:44:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:44:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:44:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:44:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:44:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:44:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:44:05,205 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:44:05,206 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:44:05,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:44:05 BoogieIcfgContainer [2019-10-15 01:44:05,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:44:05,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:44:05,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:44:05,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:44:05,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:44:00" (1/3) ... [2019-10-15 01:44:05,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26adcff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:44:05, skipping insertion in model container [2019-10-15 01:44:05,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:44:01" (2/3) ... [2019-10-15 01:44:05,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26adcff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:44:05, skipping insertion in model container [2019-10-15 01:44:05,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:44:05" (3/3) ... [2019-10-15 01:44:05,229 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label45.c [2019-10-15 01:44:05,241 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:44:05,253 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:44:05,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:44:05,301 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:44:05,301 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:44:05,302 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:44:05,302 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:44:05,303 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:44:05,303 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:44:05,303 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:44:05,303 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:44:05,334 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-10-15 01:44:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 01:44:05,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:44:05,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:05,357 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:44:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:44:05,363 INFO L82 PathProgramCache]: Analyzing trace with hash 135743160, now seen corresponding path program 1 times [2019-10-15 01:44:05,373 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:44:05,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327747156] [2019-10-15 01:44:05,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:05,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:05,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:44:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:44:06,245 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 01:44:06,246 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327747156] [2019-10-15 01:44:06,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:44:06,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:44:06,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165728065] [2019-10-15 01:44:06,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:44:06,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:44:06,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:44:06,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:44:06,270 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 4 states. [2019-10-15 01:44:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:44:07,864 INFO L93 Difference]: Finished difference Result 613 states and 1182 transitions. [2019-10-15 01:44:07,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:44:07,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2019-10-15 01:44:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:44:07,887 INFO L225 Difference]: With dead ends: 613 [2019-10-15 01:44:07,888 INFO L226 Difference]: Without dead ends: 448 [2019-10-15 01:44:07,892 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 01:44:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-15 01:44:07,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 301. [2019-10-15 01:44:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-15 01:44:07,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 575 transitions. [2019-10-15 01:44:07,966 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 575 transitions. Word has length 149 [2019-10-15 01:44:07,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:44:07,967 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 575 transitions. [2019-10-15 01:44:07,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:44:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 575 transitions. [2019-10-15 01:44:07,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:44:07,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:44:07,972 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:07,973 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:44:07,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:44:07,973 INFO L82 PathProgramCache]: Analyzing trace with hash -660775332, now seen corresponding path program 1 times [2019-10-15 01:44:07,973 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:44:07,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943845250] [2019-10-15 01:44:07,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:07,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:07,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:44:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:44:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:44:08,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943845250] [2019-10-15 01:44:08,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:44:08,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:44:08,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265449642] [2019-10-15 01:44:08,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:44:08,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:44:08,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:44:08,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:44:08,130 INFO L87 Difference]: Start difference. First operand 301 states and 575 transitions. Second operand 7 states. [2019-10-15 01:44:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:44:09,564 INFO L93 Difference]: Finished difference Result 945 states and 1893 transitions. [2019-10-15 01:44:09,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:44:09,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2019-10-15 01:44:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:44:09,573 INFO L225 Difference]: With dead ends: 945 [2019-10-15 01:44:09,574 INFO L226 Difference]: Without dead ends: 649 [2019-10-15 01:44:09,577 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:44:09,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2019-10-15 01:44:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 603. [2019-10-15 01:44:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-10-15 01:44:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 1146 transitions. [2019-10-15 01:44:09,664 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 1146 transitions. Word has length 165 [2019-10-15 01:44:09,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:44:09,665 INFO L462 AbstractCegarLoop]: Abstraction has 603 states and 1146 transitions. [2019-10-15 01:44:09,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:44:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 1146 transitions. [2019-10-15 01:44:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 01:44:09,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:44:09,678 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:09,678 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:44:09,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:44:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1768900429, now seen corresponding path program 1 times [2019-10-15 01:44:09,679 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:44:09,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450841945] [2019-10-15 01:44:09,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:09,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:09,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:44:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:44:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:44:09,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450841945] [2019-10-15 01:44:09,828 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:44:09,828 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:44:09,829 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250454634] [2019-10-15 01:44:09,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:44:09,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:44:09,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:44:09,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:44:09,831 INFO L87 Difference]: Start difference. First operand 603 states and 1146 transitions. Second operand 6 states. [2019-10-15 01:44:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:44:11,080 INFO L93 Difference]: Finished difference Result 1849 states and 3645 transitions. [2019-10-15 01:44:11,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:44:11,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2019-10-15 01:44:11,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:44:11,090 INFO L225 Difference]: With dead ends: 1849 [2019-10-15 01:44:11,090 INFO L226 Difference]: Without dead ends: 1251 [2019-10-15 01:44:11,093 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:44:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2019-10-15 01:44:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1225. [2019-10-15 01:44:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2019-10-15 01:44:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 2061 transitions. [2019-10-15 01:44:11,156 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 2061 transitions. Word has length 172 [2019-10-15 01:44:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:44:11,157 INFO L462 AbstractCegarLoop]: Abstraction has 1225 states and 2061 transitions. [2019-10-15 01:44:11,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:44:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 2061 transitions. [2019-10-15 01:44:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:44:11,162 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:44:11,163 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:11,163 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:44:11,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:44:11,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1875469752, now seen corresponding path program 1 times [2019-10-15 01:44:11,164 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:44:11,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191216971] [2019-10-15 01:44:11,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:11,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:44:11,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:44:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:44:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:44:11,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191216971] [2019-10-15 01:44:11,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633128979] [2019-10-15 01:44:11,484 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 01:44:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:44:11,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:44:11,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:44:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:44:11,883 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:44:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:44:12,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [345546169] [2019-10-15 01:44:12,067 INFO L162 IcfgInterpreter]: Started Sifa with 153 locations of interest [2019-10-15 01:44:12,068 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:44:12,075 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:44:12,082 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:44:12,083 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:44:12,393 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-15 01:44:12,884 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 206 for LOIs [2019-10-15 01:44:13,105 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2019-10-15 01:44:13,218 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2019-10-15 01:44:13,564 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-15 01:44:13,900 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-15 01:44:15,129 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 323 [2019-10-15 01:44:15,467 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 240 [2019-10-15 01:44:15,706 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2019-10-15 01:44:17,084 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 283 [2019-10-15 01:44:17,900 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2019-10-15 01:44:19,059 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 368 [2019-10-15 01:44:19,264 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 368 [2019-10-15 01:44:19,396 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2019-10-15 01:44:19,506 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2019-10-15 01:44:19,997 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2019-10-15 01:44:21,928 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 368 [2019-10-15 01:44:22,191 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2019-10-15 01:44:22,309 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 371 [2019-10-15 01:44:22,562 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 370 [2019-10-15 01:44:23,015 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 283 [2019-10-15 01:44:23,885 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 283 [2019-10-15 01:44:24,561 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 369 [2019-10-15 01:44:24,663 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 368 [2019-10-15 01:44:24,816 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2019-10-15 01:44:25,199 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 373 [2019-10-15 01:44:25,609 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 283 [2019-10-15 01:44:27,131 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 369 [2019-10-15 01:44:27,369 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2019-10-15 01:44:27,799 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 283 [2019-10-15 01:44:28,870 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 283 [2019-10-15 01:44:29,233 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 279 [2019-10-15 01:44:29,640 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 172 for LOIs [2019-10-15 01:44:30,239 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 125 [2019-10-15 01:44:30,386 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-10-15 01:44:30,510 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-10-15 01:44:30,851 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 140 [2019-10-15 01:44:31,026 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-10-15 01:44:31,583 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 140 [2019-10-15 01:44:31,792 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-10-15 01:44:31,974 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-15 01:44:32,624 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 141 [2019-10-15 01:44:32,806 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-10-15 01:44:32,998 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 175 [2019-10-15 01:44:33,381 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 141 [2019-10-15 01:44:33,567 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-10-15 01:44:33,770 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2019-10-15 01:44:35,008 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 141 [2019-10-15 01:44:35,191 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-10-15 01:44:35,383 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 182