/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_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:35:10,295 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-07 01:35:10,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:35:10,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:35:10,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:35:10,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:35:10,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:35:10,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:35:10,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:35:10,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:35:10,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:35:10,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:35:10,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:35:10,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:35:10,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 01:35:10,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:35:10,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:35:10,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:35:10,349 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 01:35:10,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:35:10,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:35:10,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:35:10,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:35:10,381 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:35:10,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:35:10,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:35:10,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:35:10,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:35:10,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:35:10,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:35:10,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:35:10,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:35:10,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:35:10,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:35:10,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:35:10,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:35:10,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:35:10,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:35:10,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:35:10,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:35:10,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:35:10,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:35:10,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:35:10,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:35:10,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:35:10,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:35:10,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:35:10,387 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 01:35:10,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:35:10,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:35:10,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:35:10,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:35:10,753 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:35:10,754 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label29.c [2019-11-07 01:35:10,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470883df8/4d72298949254d7997d9c949f43d1a71/FLAG2383ca7ff [2019-11-07 01:35:11,385 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:35:11,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label29.c [2019-11-07 01:35:11,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470883df8/4d72298949254d7997d9c949f43d1a71/FLAG2383ca7ff [2019-11-07 01:35:11,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470883df8/4d72298949254d7997d9c949f43d1a71 [2019-11-07 01:35:11,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:35:11,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:35:11,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:35:11,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:35:11,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:35:11,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:11" (1/1) ... [2019-11-07 01:35:11,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389c572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:11, skipping insertion in model container [2019-11-07 01:35:11,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:11" (1/1) ... [2019-11-07 01:35:11,763 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:35:11,882 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:35:12,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:35:12,617 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:35:12,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:35:12,721 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:35:12,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12 WrapperNode [2019-11-07 01:35:12,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:35:12,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:35:12,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:35:12,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:35:12,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (1/1) ... [2019-11-07 01:35:12,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:35:12,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:35:12,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:35:12,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:35:12,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (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 01:35:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:35:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:35:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:35:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:35:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:35:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:35:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:35:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:35:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:35:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:35:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:35:14,893 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:35:14,893 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:35:14,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:14 BoogieIcfgContainer [2019-11-07 01:35:14,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:35:14,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:35:14,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:35:14,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:35:14,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:35:11" (1/3) ... [2019-11-07 01:35:14,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783dbe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:14, skipping insertion in model container [2019-11-07 01:35:14,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:12" (2/3) ... [2019-11-07 01:35:14,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783dbe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:14, skipping insertion in model container [2019-11-07 01:35:14,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:14" (3/3) ... [2019-11-07 01:35:14,943 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label29.c [2019-11-07 01:35:14,959 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:35:14,971 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:35:14,982 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:35:15,016 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:35:15,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:35:15,017 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:35:15,017 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:35:15,017 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:35:15,017 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:35:15,017 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:35:15,018 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:35:15,049 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-11-07 01:35:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 01:35:15,060 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:15,061 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 01:35:15,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:15,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:15,069 INFO L82 PathProgramCache]: Analyzing trace with hash 826818660, now seen corresponding path program 1 times [2019-11-07 01:35:15,079 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:15,080 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326088506] [2019-11-07 01:35:15,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:15,596 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 01:35:15,597 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326088506] [2019-11-07 01:35:15,598 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:35:15,598 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:35:15,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179687996] [2019-11-07 01:35:15,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:35:15,607 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:15,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:35:15,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:35:15,625 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-07 01:35:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:16,129 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-11-07 01:35:16,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:35:16,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-11-07 01:35:16,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:16,158 INFO L225 Difference]: With dead ends: 246 [2019-11-07 01:35:16,158 INFO L226 Difference]: Without dead ends: 157 [2019-11-07 01:35:16,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:35:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-07 01:35:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-11-07 01:35:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-07 01:35:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-11-07 01:35:16,223 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-11-07 01:35:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:16,224 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-11-07 01:35:16,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:35:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-11-07 01:35:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-07 01:35:16,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:16,228 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 01:35:16,229 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:16,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1195667973, now seen corresponding path program 1 times [2019-11-07 01:35:16,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:16,230 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598138252] [2019-11-07 01:35:16,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:16,374 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 01:35:16,375 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598138252] [2019-11-07 01:35:16,375 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:35:16,375 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:35:16,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134453069] [2019-11-07 01:35:16,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:35:16,379 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:16,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:35:16,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:35:16,380 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-11-07 01:35:17,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:17,015 INFO L93 Difference]: Finished difference Result 402 states and 725 transitions. [2019-11-07 01:35:17,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:35:17,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-11-07 01:35:17,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:17,022 INFO L225 Difference]: With dead ends: 402 [2019-11-07 01:35:17,022 INFO L226 Difference]: Without dead ends: 250 [2019-11-07 01:35:17,024 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 01:35:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-11-07 01:35:17,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 238. [2019-11-07 01:35:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-11-07 01:35:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 407 transitions. [2019-11-07 01:35:17,059 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 407 transitions. Word has length 87 [2019-11-07 01:35:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:17,059 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 407 transitions. [2019-11-07 01:35:17,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:35:17,060 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 407 transitions. [2019-11-07 01:35:17,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-07 01:35:17,064 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:17,065 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:35:17,065 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:17,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:17,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2128689577, now seen corresponding path program 1 times [2019-11-07 01:35:17,066 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:17,066 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166602729] [2019-11-07 01:35:17,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:17,246 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166602729] [2019-11-07 01:35:17,247 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:35:17,247 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:35:17,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938321226] [2019-11-07 01:35:17,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:35:17,250 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:17,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:35:17,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:35:17,251 INFO L87 Difference]: Start difference. First operand 238 states and 407 transitions. Second operand 3 states. [2019-11-07 01:35:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:17,777 INFO L93 Difference]: Finished difference Result 700 states and 1240 transitions. [2019-11-07 01:35:17,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:35:17,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-11-07 01:35:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:17,784 INFO L225 Difference]: With dead ends: 700 [2019-11-07 01:35:17,785 INFO L226 Difference]: Without dead ends: 467 [2019-11-07 01:35:17,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:35:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-11-07 01:35:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2019-11-07 01:35:17,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-11-07 01:35:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 779 transitions. [2019-11-07 01:35:17,833 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 779 transitions. Word has length 88 [2019-11-07 01:35:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:17,834 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 779 transitions. [2019-11-07 01:35:17,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:35:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 779 transitions. [2019-11-07 01:35:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-07 01:35:17,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:17,843 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:17,843 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:17,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:17,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1130432325, now seen corresponding path program 1 times [2019-11-07 01:35:17,844 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:17,844 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264898144] [2019-11-07 01:35:17,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:17,955 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:17,956 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264898144] [2019-11-07 01:35:17,956 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:35:17,957 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:35:17,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099161072] [2019-11-07 01:35:17,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:35:17,958 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:17,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:35:17,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:35:17,959 INFO L87 Difference]: Start difference. First operand 467 states and 779 transitions. Second operand 6 states. [2019-11-07 01:35:18,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:18,553 INFO L93 Difference]: Finished difference Result 1289 states and 2330 transitions. [2019-11-07 01:35:18,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:35:18,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-11-07 01:35:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:18,562 INFO L225 Difference]: With dead ends: 1289 [2019-11-07 01:35:18,562 INFO L226 Difference]: Without dead ends: 827 [2019-11-07 01:35:18,564 INFO L630 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 [2019-11-07 01:35:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-11-07 01:35:18,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 799. [2019-11-07 01:35:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2019-11-07 01:35:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1252 transitions. [2019-11-07 01:35:18,625 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1252 transitions. Word has length 102 [2019-11-07 01:35:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:18,625 INFO L462 AbstractCegarLoop]: Abstraction has 799 states and 1252 transitions. [2019-11-07 01:35:18,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:35:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1252 transitions. [2019-11-07 01:35:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-07 01:35:18,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:18,630 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:18,630 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:18,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1834358454, now seen corresponding path program 1 times [2019-11-07 01:35:18,631 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:18,631 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852954330] [2019-11-07 01:35:18,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:18,716 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:18,717 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852954330] [2019-11-07 01:35:18,717 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055449498] [2019-11-07 01:35:18,717 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 01:35:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:18,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-07 01:35:18,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:35:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 01:35:18,984 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:35:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 01:35:19,150 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:35:19,150 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 9 [2019-11-07 01:35:19,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227841047] [2019-11-07 01:35:19,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:35:19,152 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:19,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:35:19,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:35:19,155 INFO L87 Difference]: Start difference. First operand 799 states and 1252 transitions. Second operand 4 states. [2019-11-07 01:35:19,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:19,648 INFO L93 Difference]: Finished difference Result 2292 states and 3670 transitions. [2019-11-07 01:35:19,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 01:35:19,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-11-07 01:35:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:19,664 INFO L225 Difference]: With dead ends: 2292 [2019-11-07 01:35:19,664 INFO L226 Difference]: Without dead ends: 1498 [2019-11-07 01:35:19,667 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 215 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:35:19,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2019-11-07 01:35:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1269. [2019-11-07 01:35:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1269 states. [2019-11-07 01:35:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1975 transitions. [2019-11-07 01:35:19,750 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1975 transitions. Word has length 111 [2019-11-07 01:35:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:19,752 INFO L462 AbstractCegarLoop]: Abstraction has 1269 states and 1975 transitions. [2019-11-07 01:35:19,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:35:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1975 transitions. [2019-11-07 01:35:19,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-07 01:35:19,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:19,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:19,965 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:35:19,965 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1929509416, now seen corresponding path program 1 times [2019-11-07 01:35:19,966 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:19,966 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752945603] [2019-11-07 01:35:19,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:20,114 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752945603] [2019-11-07 01:35:20,114 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53220983] [2019-11-07 01:35:20,115 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 01:35:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:20,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:35:20,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:35:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:35:20,272 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:35:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:35:20,319 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 01:35:20,320 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-11-07 01:35:20,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831518473] [2019-11-07 01:35:20,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:35:20,321 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:20,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:35:20,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:35:20,327 INFO L87 Difference]: Start difference. First operand 1269 states and 1975 transitions. Second operand 3 states. [2019-11-07 01:35:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:20,751 INFO L93 Difference]: Finished difference Result 3453 states and 5538 transitions. [2019-11-07 01:35:20,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:35:20,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-11-07 01:35:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:20,769 INFO L225 Difference]: With dead ends: 3453 [2019-11-07 01:35:20,770 INFO L226 Difference]: Without dead ends: 2189 [2019-11-07 01:35:20,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 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 01:35:20,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2019-11-07 01:35:20,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2189. [2019-11-07 01:35:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2019-11-07 01:35:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 3322 transitions. [2019-11-07 01:35:20,879 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 3322 transitions. Word has length 113 [2019-11-07 01:35:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:20,880 INFO L462 AbstractCegarLoop]: Abstraction has 2189 states and 3322 transitions. [2019-11-07 01:35:20,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:35:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 3322 transitions. [2019-11-07 01:35:20,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-07 01:35:20,891 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:20,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:21,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:35:21,097 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:21,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:21,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1060655324, now seen corresponding path program 1 times [2019-11-07 01:35:21,098 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:21,098 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811620108] [2019-11-07 01:35:21,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:21,180 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811620108] [2019-11-07 01:35:21,180 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458866774] [2019-11-07 01:35:21,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:35:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:21,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:35:21,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:35:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:35:21,355 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:35:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:35:21,417 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 01:35:21,418 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2019-11-07 01:35:21,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804792549] [2019-11-07 01:35:21,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:35:21,420 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:21,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:35:21,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-07 01:35:21,421 INFO L87 Difference]: Start difference. First operand 2189 states and 3322 transitions. Second operand 4 states. [2019-11-07 01:35:22,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:22,191 INFO L93 Difference]: Finished difference Result 5129 states and 7808 transitions. [2019-11-07 01:35:22,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 01:35:22,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-11-07 01:35:22,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:22,209 INFO L225 Difference]: With dead ends: 5129 [2019-11-07 01:35:22,209 INFO L226 Difference]: Without dead ends: 3020 [2019-11-07 01:35:22,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-07 01:35:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2019-11-07 01:35:22,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2031. [2019-11-07 01:35:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2031 states. [2019-11-07 01:35:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2822 transitions. [2019-11-07 01:35:22,309 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2822 transitions. Word has length 119 [2019-11-07 01:35:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:22,309 INFO L462 AbstractCegarLoop]: Abstraction has 2031 states and 2822 transitions. [2019-11-07 01:35:22,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:35:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2822 transitions. [2019-11-07 01:35:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-11-07 01:35:22,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:22,317 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-07 01:35:22,528 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:35:22,528 INFO L410 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:22,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:22,529 INFO L82 PathProgramCache]: Analyzing trace with hash 705245009, now seen corresponding path program 1 times [2019-11-07 01:35:22,529 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:22,530 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687899385] [2019-11-07 01:35:22,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:22,654 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 61 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 01:35:22,655 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687899385] [2019-11-07 01:35:22,655 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314859430] [2019-11-07 01:35:22,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:35:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:22,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:35:22,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:35:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 01:35:22,824 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:35:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 61 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 01:35:22,913 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2092787613] [2019-11-07 01:35:22,958 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-11-07 01:35:22,958 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:35:22,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:35:22,970 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:35:22,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:35:23,110 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 98 for LOIs [2019-11-07 01:35:23,845 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 149 [2019-11-07 01:35:24,015 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 155 [2019-11-07 01:35:24,441 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 132 for LOIs [2019-11-07 01:35:24,779 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 135 [2019-11-07 01:35:24,973 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-11-07 01:35:25,261 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2019-11-07 01:35:25,433 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-07 01:35:25,773 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 141 [2019-11-07 01:35:26,062 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-07 01:35:26,425 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 141 [2019-11-07 01:35:26,582 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-07 01:35:26,894 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 140 [2019-11-07 01:35:27,036 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:27,626 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:27,835 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:28,108 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:28,221 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:28,397 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:28,500 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:28,895 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:29,212 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:29,412 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:29,900 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:30,034 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:30,309 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2019-11-07 01:35:30,418 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:30,641 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 140 [2019-11-07 01:35:30,863 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 140 [2019-11-07 01:35:31,081 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:31,184 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 01:35:31,389 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-11-07 01:35:31,838 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2019-11-07 01:35:32,082 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 139 [2019-11-07 01:35:32,448 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-07 01:35:32,601 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-07 01:35:32,778 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2019-11-07 01:35:33,009 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:33,222 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:33,478 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:34,339 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2019-11-07 01:35:34,699 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 139 [2019-11-07 01:35:34,997 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:35,203 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:35,414 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 139 [2019-11-07 01:35:35,673 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:35,885 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:36,157 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 139 [2019-11-07 01:35:36,291 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-11-07 01:35:36,423 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 139 [2019-11-07 01:35:36,675 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 138 [2019-11-07 01:35:37,655 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-11-07 01:35:39,360 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 137 [2019-11-07 01:35:41,750 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 31