/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/Problem01_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:33:53,487 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-07 01:33:53,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:33:53,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:33:53,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:33:53,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:33:53,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:33:53,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:33:53,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:33:53,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:33:53,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:33:53,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:33:53,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:33:53,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:33:53,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 01:33:53,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:33:53,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:33:53,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:33:53,558 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 01:33:53,586 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:33:53,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:33:53,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:33:53,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:33:53,587 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:33:53,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:33:53,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:33:53,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:33:53,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:33:53,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:33:53,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:33:53,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:33:53,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:33:53,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:33:53,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:33:53,589 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:33:53,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:33:53,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:33:53,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:33:53,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:33:53,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:33:53,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:33:53,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:33:53,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:33:53,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:33:53,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:33:53,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:33:53,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:33:53,592 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 01:33:53,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:33:53,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:33:53,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:33:53,933 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:33:53,933 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:33:53,934 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2019-11-07 01:33:54,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2dd31a89/bed15a046fc543169d09686f0abd8b16/FLAG8228d8ca3 [2019-11-07 01:33:54,597 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:33:54,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2019-11-07 01:33:54,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2dd31a89/bed15a046fc543169d09686f0abd8b16/FLAG8228d8ca3 [2019-11-07 01:33:54,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2dd31a89/bed15a046fc543169d09686f0abd8b16 [2019-11-07 01:33:54,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:33:54,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:33:54,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:33:54,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:33:54,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:33:54,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:54" (1/1) ... [2019-11-07 01:33:54,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d184af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:54, skipping insertion in model container [2019-11-07 01:33:54,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:54" (1/1) ... [2019-11-07 01:33:54,984 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:33:55,067 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:33:55,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:33:55,565 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:33:55,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:33:55,699 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:33:55,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55 WrapperNode [2019-11-07 01:33:55,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:33:55,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:33:55,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:33:55,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:33:55,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (1/1) ... [2019-11-07 01:33:55,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:33:55,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:33:55,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:33:55,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:33:55,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (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 01:33:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:33:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:33:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:33:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:33:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:33:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:33:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:33:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:33:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:33:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:33:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:33:57,806 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:33:57,806 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:33:57,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:57 BoogieIcfgContainer [2019-11-07 01:33:57,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:33:57,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:33:57,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:33:57,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:33:57,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:33:54" (1/3) ... [2019-11-07 01:33:57,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4b3325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:57, skipping insertion in model container [2019-11-07 01:33:57,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:55" (2/3) ... [2019-11-07 01:33:57,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4b3325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:57, skipping insertion in model container [2019-11-07 01:33:57,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:57" (3/3) ... [2019-11-07 01:33:57,817 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label07.c [2019-11-07 01:33:57,830 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:33:57,839 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:33:57,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:33:57,877 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:33:57,878 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:33:57,878 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:33:57,878 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:33:57,878 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:33:57,878 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:33:57,879 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:33:57,879 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:33:57,900 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-11-07 01:33:57,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 01:33:57,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:57,911 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] [2019-11-07 01:33:57,913 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:57,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:57,919 INFO L82 PathProgramCache]: Analyzing trace with hash 826819428, now seen corresponding path program 1 times [2019-11-07 01:33:57,929 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:57,929 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672229760] [2019-11-07 01:33:57,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:58,349 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 01:33:58,349 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672229760] [2019-11-07 01:33:58,350 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:33:58,350 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:33:58,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877884918] [2019-11-07 01:33:58,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:33:58,358 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:33:58,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:33:58,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:33:58,377 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-07 01:33:58,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:33:58,884 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-11-07 01:33:58,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:33:58,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-11-07 01:33:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:33:58,912 INFO L225 Difference]: With dead ends: 246 [2019-11-07 01:33:58,912 INFO L226 Difference]: Without dead ends: 157 [2019-11-07 01:33:58,919 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:33:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-07 01:33:59,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-11-07 01:33:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-07 01:33:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 273 transitions. [2019-11-07 01:33:59,036 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 273 transitions. Word has length 77 [2019-11-07 01:33:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:33:59,038 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 273 transitions. [2019-11-07 01:33:59,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:33:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 273 transitions. [2019-11-07 01:33:59,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-07 01:33:59,048 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:59,048 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:33:59,049 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:59,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1195667205, now seen corresponding path program 1 times [2019-11-07 01:33:59,050 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:59,050 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010641670] [2019-11-07 01:33:59,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:59,207 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010641670] [2019-11-07 01:33:59,208 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:33:59,208 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:33:59,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757823300] [2019-11-07 01:33:59,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:33:59,211 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:33:59,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:33:59,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:33:59,212 INFO L87 Difference]: Start difference. First operand 157 states and 273 transitions. Second operand 6 states. [2019-11-07 01:33:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:33:59,796 INFO L93 Difference]: Finished difference Result 479 states and 861 transitions. [2019-11-07 01:33:59,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:33:59,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-11-07 01:33:59,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:33:59,804 INFO L225 Difference]: With dead ends: 479 [2019-11-07 01:33:59,804 INFO L226 Difference]: Without dead ends: 327 [2019-11-07 01:33:59,807 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 01:33:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-11-07 01:33:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 315. [2019-11-07 01:33:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-11-07 01:33:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 543 transitions. [2019-11-07 01:33:59,856 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 543 transitions. Word has length 87 [2019-11-07 01:33:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:33:59,856 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 543 transitions. [2019-11-07 01:33:59,857 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:33:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 543 transitions. [2019-11-07 01:33:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-07 01:33:59,865 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:59,865 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-11-07 01:33:59,865 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash -498201876, now seen corresponding path program 1 times [2019-11-07 01:33:59,866 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:59,866 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373634305] [2019-11-07 01:33:59,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:34:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:34:00,034 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373634305] [2019-11-07 01:34:00,035 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35070151] [2019-11-07 01:34:00,035 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 01:34:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:34:00,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:34:00,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:34:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:34:00,252 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:34:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:34:00,318 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 01:34:00,321 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-11-07 01:34:00,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266788136] [2019-11-07 01:34:00,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:34:00,324 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:34:00,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:34:00,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:34:00,325 INFO L87 Difference]: Start difference. First operand 315 states and 543 transitions. Second operand 3 states. [2019-11-07 01:34:00,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:34:00,745 INFO L93 Difference]: Finished difference Result 929 states and 1656 transitions. [2019-11-07 01:34:00,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:34:00,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2019-11-07 01:34:00,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:34:00,753 INFO L225 Difference]: With dead ends: 929 [2019-11-07 01:34:00,753 INFO L226 Difference]: Without dead ends: 619 [2019-11-07 01:34:00,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:34:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-11-07 01:34:00,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-11-07 01:34:00,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-11-07 01:34:00,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 1027 transitions. [2019-11-07 01:34:00,793 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 1027 transitions. Word has length 111 [2019-11-07 01:34:00,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:34:00,794 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 1027 transitions. [2019-11-07 01:34:00,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:34:00,794 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 1027 transitions. [2019-11-07 01:34:00,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 01:34:00,797 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:34:00,798 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:34:01,003 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:34:01,004 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:34:01,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:34:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash 528992882, now seen corresponding path program 1 times [2019-11-07 01:34:01,005 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:34:01,012 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951567716] [2019-11-07 01:34:01,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:34:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:34:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:34:01,304 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951567716] [2019-11-07 01:34:01,304 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644444286] [2019-11-07 01:34:01,304 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 01:34:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:34:01,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:34:01,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:34:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:34:01,490 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:34:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:34:01,585 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1592663713] [2019-11-07 01:34:01,616 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-11-07 01:34:01,616 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:34:01,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:34:01,630 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:34:01,630 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:34:01,823 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 100 for LOIs [2019-11-07 01:34:03,402 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 138 for LOIs [2019-11-07 01:34:03,753 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:34:03,939 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:34:04,246 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:34:04,408 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:34:04,738 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:34:04,955 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:34:05,245 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:34:05,517 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:34:05,895 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:06,091 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:06,657 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:06,832 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:07,140 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:07,330 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:07,536 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:07,739 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:08,186 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:08,328 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:08,551 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:08,681 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:09,100 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:09,383 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:09,743 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:09,983 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:10,239 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:10,380 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:10,559 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:10,682 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:10,873 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:11,052 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:11,225 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:11,349 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:11,640 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:11,780 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:34:11,989 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:12,107 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:12,281 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:12,402 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:12,580 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:12,718 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:12,907 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:13,043 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:13,231 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:13,366 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:13,539 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:13,668 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:13,899 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:14,026 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:14,236 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:14,374 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:14,578 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:14,775 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:14,987 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:15,124 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:15,485 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:15,728 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:15,967 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:16,173 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:16,569 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:16,692 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:16,856 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:16,976 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:17,215 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:17,368 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:17,559 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:17,681 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:17,897 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:18,078 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:34:18,229 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:18,342 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:18,495 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:18,613 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:18,801 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:18,914 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,070 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,189 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,358 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,473 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,627 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,741 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:19,910 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:20,024 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:34:20,164 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:20,266 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:20,403 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:20,504 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:20,882 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,013 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,195 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,297 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,588 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,705 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,870 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:21,989 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:22,170 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:22,313 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:22,495 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:22,614 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:22,780 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:22,900 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,063 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,181 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,346 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,464 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,632 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,789 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:23,951 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:24,069 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:24,236 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:24,354 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:24,507 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:24,621 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:24,798 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:24,911 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:25,067 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:25,180 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:25,351 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:25,463 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:25,654 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:25,849 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,116 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,229 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,384 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,498 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,648 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,759 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:26,899 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:27,061 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:27,315 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:27,522 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:27,819 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:28,019 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:28,038 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 34