/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/systemc/toy1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 06:05:39,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 06:05:39,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 06:05:39,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 06:05:39,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 06:05:39,932 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 06:05:39,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 06:05:39,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 06:05:39,934 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 06:05:39,934 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 06:05:39,934 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 06:05:39,935 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 06:05:39,935 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 06:05:39,935 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 06:05:39,935 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 06:05:39,935 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 06:05:39,935 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 06:05:39,936 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 06:05:39,936 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 06:05:39,936 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 06:05:39,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 06:05:39,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 06:05:39,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 06:05:39,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 06:05:39,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 06:05:39,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 06:05:39,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 06:05:39,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 06:05:39,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 06:05:39,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 06:05:39,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 06:05:39,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 06:05:39,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 06:05:39,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 06:05:39,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 06:05:39,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 06:05:39,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 06:05:39,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 06:05:39,940 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 06:05:39,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 06:05:39,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 06:05:39,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 06:05:39,941 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 06:05:40,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 06:05:40,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 06:05:40,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 06:05:40,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 06:05:40,267 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 06:05:40,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/toy1.cil.c [2019-11-24 06:05:40,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e6f21c4f/9a333382edbe4d36a247efde71aa81a2/FLAG818a81599 [2019-11-24 06:05:40,819 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 06:05:40,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/toy1.cil.c [2019-11-24 06:05:40,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e6f21c4f/9a333382edbe4d36a247efde71aa81a2/FLAG818a81599 [2019-11-24 06:05:41,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e6f21c4f/9a333382edbe4d36a247efde71aa81a2 [2019-11-24 06:05:41,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 06:05:41,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 06:05:41,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 06:05:41,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 06:05:41,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 06:05:41,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449a522b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41, skipping insertion in model container [2019-11-24 06:05:41,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 06:05:41,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 06:05:41,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 06:05:41,524 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 06:05:41,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 06:05:41,674 INFO L208 MainTranslator]: Completed translation [2019-11-24 06:05:41,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41 WrapperNode [2019-11-24 06:05:41,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 06:05:41,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 06:05:41,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 06:05:41,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 06:05:41,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 06:05:41,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 06:05:41,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 06:05:41,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 06:05:41,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (1/1) ... [2019-11-24 06:05:41,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 06:05:41,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 06:05:41,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 06:05:41,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 06:05:41,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (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 [2019-11-24 06:05:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 06:05:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 06:05:43,396 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 06:05:43,396 INFO L284 CfgBuilder]: Removed 28 assume(true) statements. [2019-11-24 06:05:43,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:05:43 BoogieIcfgContainer [2019-11-24 06:05:43,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 06:05:43,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 06:05:43,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 06:05:43,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 06:05:43,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 06:05:41" (1/3) ... [2019-11-24 06:05:43,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df2c7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 06:05:43, skipping insertion in model container [2019-11-24 06:05:43,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:05:41" (2/3) ... [2019-11-24 06:05:43,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df2c7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 06:05:43, skipping insertion in model container [2019-11-24 06:05:43,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:05:43" (3/3) ... [2019-11-24 06:05:43,405 INFO L109 eAbstractionObserver]: Analyzing ICFG toy1.cil.c [2019-11-24 06:05:43,415 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 06:05:43,423 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 06:05:43,435 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 06:05:43,463 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 06:05:43,464 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 06:05:43,464 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 06:05:43,464 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 06:05:43,464 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 06:05:43,465 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 06:05:43,465 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 06:05:43,465 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 06:05:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-24 06:05:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 06:05:43,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:05:43,485 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:05:43,485 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:05:43,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:05:43,490 INFO L82 PathProgramCache]: Analyzing trace with hash 771554450, now seen corresponding path program 1 times [2019-11-24 06:05:43,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:05:43,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773419432] [2019-11-24 06:05:43,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:05:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:43,732 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773419432] [2019-11-24 06:05:43,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:05:43,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 06:05:43,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120377006] [2019-11-24 06:05:43,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:05:43,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:05:43,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:05:43,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:43,759 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2019-11-24 06:05:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:05:43,840 INFO L93 Difference]: Finished difference Result 115 states and 185 transitions. [2019-11-24 06:05:43,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:05:43,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-24 06:05:43,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:05:43,856 INFO L225 Difference]: With dead ends: 115 [2019-11-24 06:05:43,857 INFO L226 Difference]: Without dead ends: 68 [2019-11-24 06:05:43,861 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-24 06:05:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2019-11-24 06:05:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-24 06:05:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 101 transitions. [2019-11-24 06:05:43,910 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 101 transitions. Word has length 14 [2019-11-24 06:05:43,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:05:43,911 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 101 transitions. [2019-11-24 06:05:43,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:05:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 101 transitions. [2019-11-24 06:05:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-24 06:05:43,913 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:05:43,913 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:05:43,913 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:05:43,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:05:43,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1883485327, now seen corresponding path program 1 times [2019-11-24 06:05:43,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:05:43,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930462698] [2019-11-24 06:05:43,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:05:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:44,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930462698] [2019-11-24 06:05:44,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:05:44,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:05:44,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147336587] [2019-11-24 06:05:44,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:05:44,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:05:44,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:05:44,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:44,015 INFO L87 Difference]: Start difference. First operand 67 states and 101 transitions. Second operand 3 states. [2019-11-24 06:05:44,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:05:44,084 INFO L93 Difference]: Finished difference Result 122 states and 189 transitions. [2019-11-24 06:05:44,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:05:44,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-24 06:05:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:05:44,088 INFO L225 Difference]: With dead ends: 122 [2019-11-24 06:05:44,089 INFO L226 Difference]: Without dead ends: 84 [2019-11-24 06:05:44,091 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-24 06:05:44,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77. [2019-11-24 06:05:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-24 06:05:44,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2019-11-24 06:05:44,114 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 117 transitions. Word has length 22 [2019-11-24 06:05:44,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:05:44,114 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 117 transitions. [2019-11-24 06:05:44,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:05:44,115 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 117 transitions. [2019-11-24 06:05:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-24 06:05:44,118 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:05:44,118 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:05:44,119 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:05:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:05:44,121 INFO L82 PathProgramCache]: Analyzing trace with hash -21642274, now seen corresponding path program 1 times [2019-11-24 06:05:44,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:05:44,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425622642] [2019-11-24 06:05:44,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:05:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:44,231 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425622642] [2019-11-24 06:05:44,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:05:44,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:05:44,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276993230] [2019-11-24 06:05:44,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 06:05:44,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:05:44,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 06:05:44,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 06:05:44,233 INFO L87 Difference]: Start difference. First operand 77 states and 117 transitions. Second operand 4 states. [2019-11-24 06:05:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:05:44,319 INFO L93 Difference]: Finished difference Result 216 states and 334 transitions. [2019-11-24 06:05:44,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 06:05:44,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-24 06:05:44,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:05:44,321 INFO L225 Difference]: With dead ends: 216 [2019-11-24 06:05:44,321 INFO L226 Difference]: Without dead ends: 143 [2019-11-24 06:05:44,322 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 06:05:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-24 06:05:44,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 115. [2019-11-24 06:05:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-24 06:05:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 176 transitions. [2019-11-24 06:05:44,344 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 176 transitions. Word has length 26 [2019-11-24 06:05:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:05:44,344 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 176 transitions. [2019-11-24 06:05:44,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 06:05:44,345 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 176 transitions. [2019-11-24 06:05:44,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-24 06:05:44,347 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:05:44,347 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-24 06:05:44,348 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:05:44,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:05:44,349 INFO L82 PathProgramCache]: Analyzing trace with hash 433405894, now seen corresponding path program 1 times [2019-11-24 06:05:44,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:05:44,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908293803] [2019-11-24 06:05:44,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:05:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:44,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908293803] [2019-11-24 06:05:44,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:05:44,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:05:44,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256219892] [2019-11-24 06:05:44,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:05:44,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:05:44,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:05:44,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:44,423 INFO L87 Difference]: Start difference. First operand 115 states and 176 transitions. Second operand 3 states. [2019-11-24 06:05:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:05:44,479 INFO L93 Difference]: Finished difference Result 249 states and 388 transitions. [2019-11-24 06:05:44,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:05:44,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-24 06:05:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:05:44,482 INFO L225 Difference]: With dead ends: 249 [2019-11-24 06:05:44,482 INFO L226 Difference]: Without dead ends: 175 [2019-11-24 06:05:44,483 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:44,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-24 06:05:44,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2019-11-24 06:05:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-24 06:05:44,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 262 transitions. [2019-11-24 06:05:44,499 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 262 transitions. Word has length 34 [2019-11-24 06:05:44,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:05:44,500 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 262 transitions. [2019-11-24 06:05:44,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:05:44,500 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 262 transitions. [2019-11-24 06:05:44,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-24 06:05:44,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:05:44,503 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2019-11-24 06:05:44,503 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:05:44,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:05:44,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1474793516, now seen corresponding path program 1 times [2019-11-24 06:05:44,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:05:44,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541311475] [2019-11-24 06:05:44,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:05:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-24 06:05:44,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541311475] [2019-11-24 06:05:44,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:05:44,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:05:44,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705055230] [2019-11-24 06:05:44,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:05:44,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:05:44,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:05:44,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:44,588 INFO L87 Difference]: Start difference. First operand 173 states and 262 transitions. Second operand 3 states. [2019-11-24 06:05:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:05:44,627 INFO L93 Difference]: Finished difference Result 179 states and 269 transitions. [2019-11-24 06:05:44,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:05:44,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-11-24 06:05:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:05:44,630 INFO L225 Difference]: With dead ends: 179 [2019-11-24 06:05:44,630 INFO L226 Difference]: Without dead ends: 177 [2019-11-24 06:05:44,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:05:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-11-24 06:05:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2019-11-24 06:05:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-24 06:05:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 264 transitions. [2019-11-24 06:05:44,660 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 264 transitions. Word has length 48 [2019-11-24 06:05:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:05:44,660 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 264 transitions. [2019-11-24 06:05:44,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:05:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 264 transitions. [2019-11-24 06:05:44,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-24 06:05:44,668 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:05:44,668 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2019-11-24 06:05:44,668 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:05:44,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:05:44,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1474791914, now seen corresponding path program 1 times [2019-11-24 06:05:44,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:05:44,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114314799] [2019-11-24 06:05:44,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:05:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:44,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114314799] [2019-11-24 06:05:44,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123351527] [2019-11-24 06:05:44,989 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 [2019-11-24 06:05:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:05:45,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-24 06:05:45,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 06:05:45,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:45,131 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:45,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:45,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:45,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:45,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:45,494 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2019-11-24 06:05:45,863 WARN L192 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2019-11-24 06:05:45,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-11-24 06:05:45,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-24 06:05:45,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:46,022 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 06:05:46,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 06:05:46,269 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,318 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,380 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,388 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,407 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,462 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,499 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,507 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,533 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,594 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,615 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:46,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,407 WARN L192 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 40 [2019-11-24 06:05:47,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,438 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 06:05:47,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:05:47,624 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 17 [2019-11-24 06:05:47,638 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:05:47,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [434771634] [2019-11-24 06:05:47,666 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2019-11-24 06:05:47,666 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 06:05:47,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 06:05:47,680 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 06:05:47,680 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 06:05:48,616 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 181 [2019-11-24 06:05:48,967 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 181 [2019-11-24 06:05:50,032 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 180 [2019-11-24 06:05:50,238 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 180 [2019-11-24 06:05:50,366 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 172 [2019-11-24 06:05:50,855 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 270 [2019-11-24 06:05:51,152 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 270 [2019-11-24 06:05:51,383 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 232 [2019-11-24 06:05:51,760 WARN L192 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 301 [2019-11-24 06:05:52,116 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 300 [2019-11-24 06:05:52,330 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 185 [2019-11-24 06:05:52,455 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 185 [2019-11-24 06:05:52,758 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 245 [2019-11-24 06:05:52,920 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 245 [2019-11-24 06:05:53,046 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 233 [2019-11-24 06:05:53,342 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 280 [2019-11-24 06:05:53,706 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 271 [2019-11-24 06:05:54,108 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 190 [2019-11-24 06:05:54,601 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 254 [2019-11-24 06:05:54,753 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 254 [2019-11-24 06:05:54,867 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 239 [2019-11-24 06:05:55,059 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 319 [2019-11-24 06:05:55,332 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 317 [2019-11-24 06:05:55,502 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 190 [2019-11-24 06:05:55,643 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 190 [2019-11-24 06:05:56,687 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 189 [2019-11-24 06:05:56,798 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 189 [2019-11-24 06:05:57,093 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 245 [2019-11-24 06:05:57,219 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 245 [2019-11-24 06:05:57,431 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 289 [2019-11-24 06:05:57,656 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 293 [2019-11-24 06:05:58,074 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 276 [2019-11-24 06:05:58,190 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 276 [2019-11-24 06:05:58,418 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 330 [2019-11-24 06:05:58,563 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 330 [2019-11-24 06:05:58,738 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 330 [2019-11-24 06:05:58,871 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 330 [2019-11-24 06:05:59,013 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 330 [2019-11-24 06:05:59,186 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 330 [2019-11-24 06:05:59,365 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 272 [2019-11-24 06:05:59,513 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 272 [2019-11-24 06:05:59,741 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 272 [2019-11-24 06:05:59,883 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 272 [2019-11-24 06:06:00,680 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 06:06:00,912 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-11-24 06:06:02,971 WARN L192 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 233 DAG size of output: 143 [2019-11-24 06:06:06,195 WARN L192 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 328 DAG size of output: 188 [2019-11-24 06:06:07,859 WARN L192 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 329 DAG size of output: 112 [2019-11-24 06:06:09,640 WARN L192 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 327 DAG size of output: 116 [2019-11-24 06:06:11,566 WARN L192 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 211 DAG size of output: 117 [2019-11-24 06:06:12,391 WARN L192 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 102 [2019-11-24 06:06:14,075 WARN L192 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 201 DAG size of output: 120 [2019-11-24 06:06:19,655 WARN L192 SmtUtils]: Spent 5.30 s on a formula simplification. DAG size of input: 417 DAG size of output: 171 [2019-11-24 06:06:21,696 WARN L192 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 265 DAG size of output: 154 [2019-11-24 06:06:24,578 WARN L192 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 266 DAG size of output: 145 [2019-11-24 06:06:27,709 WARN L192 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 266 DAG size of output: 137 [2019-11-24 06:06:29,531 WARN L192 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 265 DAG size of output: 133 [2019-11-24 06:06:30,742 WARN L192 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 265 DAG size of output: 116 [2019-11-24 06:06:31,764 WARN L192 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 115 [2019-11-24 06:06:32,977 WARN L192 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 225 DAG size of output: 118 [2019-11-24 06:06:34,104 WARN L192 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 98 [2019-11-24 06:06:34,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-24 06:06:34,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [7, 10, 13] total 43 [2019-11-24 06:06:34,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285126782] [2019-11-24 06:06:34,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-24 06:06:34,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:06:34,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-24 06:06:34,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1429, Unknown=0, NotChecked=0, Total=1892 [2019-11-24 06:06:34,499 INFO L87 Difference]: Start difference. First operand 175 states and 264 transitions. Second operand 19 states. [2019-11-24 06:06:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:06:36,555 INFO L93 Difference]: Finished difference Result 409 states and 607 transitions. [2019-11-24 06:06:36,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-24 06:06:36,555 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2019-11-24 06:06:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:06:36,558 INFO L225 Difference]: With dead ends: 409 [2019-11-24 06:06:36,558 INFO L226 Difference]: Without dead ends: 239 [2019-11-24 06:06:36,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 99 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 35.8s TimeCoverageRelationStatistics Valid=463, Invalid=1429, Unknown=0, NotChecked=0, Total=1892 [2019-11-24 06:06:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-11-24 06:06:36,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 227. [2019-11-24 06:06:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-11-24 06:06:36,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 325 transitions. [2019-11-24 06:06:36,586 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 325 transitions. Word has length 48 [2019-11-24 06:06:36,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:06:36,586 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 325 transitions. [2019-11-24 06:06:36,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-24 06:06:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 325 transitions. [2019-11-24 06:06:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-24 06:06:36,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:06:36,588 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 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] [2019-11-24 06:06:36,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 06:06:36,791 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:06:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:06:36,792 INFO L82 PathProgramCache]: Analyzing trace with hash 993358859, now seen corresponding path program 1 times [2019-11-24 06:06:36,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:06:36,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642958747] [2019-11-24 06:06:36,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:06:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:06:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:06:37,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642958747] [2019-11-24 06:06:37,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662662444] [2019-11-24 06:06:37,509 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 [2019-11-24 06:06:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:06:37,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-24 06:06:37,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 06:06:37,911 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-11-24 06:06:38,349 WARN L192 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-11-24 06:06:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:06:38,507 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 06:06:40,016 WARN L192 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 230 DAG size of output: 121 [2019-11-24 06:06:40,677 WARN L192 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2019-11-24 06:06:42,537 WARN L192 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 35 [2019-11-24 06:06:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:06:42,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [6915255] [2019-11-24 06:06:42,670 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2019-11-24 06:06:42,670 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 06:06:42,671 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 06:06:42,671 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 06:06:42,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 06:06:43,658 WARN L192 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2019-11-24 06:06:44,010 WARN L192 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2019-11-24 06:06:44,332 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2019-11-24 06:06:44,671 WARN L192 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 274 [2019-11-24 06:06:45,158 WARN L192 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 273 [2019-11-24 06:06:45,313 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2019-11-24 06:06:45,424 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2019-11-24 06:06:45,841 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 323 [2019-11-24 06:06:46,178 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 323 [2019-11-24 06:06:46,478 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-11-24 06:06:48,814 WARN L192 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 941 DAG size of output: 576 [2019-11-24 06:06:50,169 WARN L192 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 941 DAG size of output: 576 [2019-11-24 06:06:50,935 WARN L192 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 511 DAG size of output: 443 [2019-11-24 06:06:51,387 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 155 [2019-11-24 06:06:51,532 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 155 [2019-11-24 06:06:51,724 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 219 [2019-11-24 06:06:51,883 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 219 [2019-11-24 06:06:52,295 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 270 [2019-11-24 06:06:52,474 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 270 [2019-11-24 06:06:52,619 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 257 [2019-11-24 06:06:52,911 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 306 [2019-11-24 06:06:53,177 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 290 [2019-11-24 06:06:53,319 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 173 [2019-11-24 06:06:53,463 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 173 [2019-11-24 06:06:53,780 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 311 [2019-11-24 06:06:54,059 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 311 [2019-11-24 06:06:54,263 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-11-24 06:06:54,995 WARN L192 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 476 DAG size of output: 377 [2019-11-24 06:06:55,480 WARN L192 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 476 DAG size of output: 377 [2019-11-24 06:06:55,804 WARN L192 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 350 [2019-11-24 06:06:56,172 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 289 [2019-11-24 06:06:56,473 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 264 [2019-11-24 06:06:56,848 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 207 [2019-11-24 06:06:56,950 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 207 [2019-11-24 06:06:57,302 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 276 [2019-11-24 06:06:57,495 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 276 [2019-11-24 06:06:57,708 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 261 [2019-11-24 06:06:57,957 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 288 [2019-11-24 06:06:58,242 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 280 [2019-11-24 06:06:58,680 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 298 [2019-11-24 06:06:58,874 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 298 [2019-11-24 06:06:59,064 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2019-11-24 06:06:59,766 WARN L192 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 499 DAG size of output: 406 [2019-11-24 06:07:00,243 WARN L192 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 499 DAG size of output: 406 [2019-11-24 06:07:00,601 WARN L192 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 372 [2019-11-24 06:07:00,955 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 247 [2019-11-24 06:07:01,100 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 247 [2019-11-24 06:07:01,235 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 233 [2019-11-24 06:07:01,708 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 260 [2019-11-24 06:07:01,893 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 260 [2019-11-24 06:07:02,042 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 250 [2019-11-24 06:07:02,300 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 283 [2019-11-24 06:07:02,474 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 283 [2019-11-24 06:07:02,648 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2019-11-24 06:07:02,943 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 329 [2019-11-24 06:07:03,242 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 324 [2019-11-24 06:07:03,849 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 347 [2019-11-24 06:07:04,170 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 347 [2019-11-24 06:07:04,529 WARN L192 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 347 [2019-11-24 06:07:05,233 WARN L192 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 435 [2019-11-24 06:07:05,754 WARN L192 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 435 [2019-11-24 06:07:06,159 WARN L192 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 402 [2019-11-24 06:07:06,659 WARN L192 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 452 [2019-11-24 06:07:07,144 WARN L192 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 452 [2019-11-24 06:07:07,637 WARN L192 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 452 [2019-11-24 06:07:08,186 WARN L192 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 452 [2019-11-24 06:07:08,664 WARN L192 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 452 [2019-11-24 06:07:09,156 WARN L192 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 452 [2019-11-24 06:07:09,630 WARN L192 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 357 [2019-11-24 06:07:10,069 WARN L192 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 357 [2019-11-24 06:07:10,386 WARN L192 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 321 [2019-11-24 06:07:10,826 WARN L192 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 357 [2019-11-24 06:07:11,267 WARN L192 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 357 [2019-11-24 06:07:11,542 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 321