/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/product-lines/minepump_spec2_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:24:23,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:24:23,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:24:23,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 05:24:23,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:24:23,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:24:23,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:24:23,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:24:23,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:24:23,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:24:23,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:24:23,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:24:23,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:24:23,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:24:23,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:24:23,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:24:23,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:24:23,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:24:23,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:24:23,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:24:23,076 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 05:24:23,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:24:23,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:24:23,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:24:23,092 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:24:23,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:24:23,093 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:24:23,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:24:23,093 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:24:23,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:24:23,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:24:23,094 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:24:23,094 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:24:23,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:24:23,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:24:23,094 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:24:23,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:24:23,095 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:24:23,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:24:23,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:24:23,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:24:23,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:24:23,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:24:23,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:24:23,097 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:24:23,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:24:23,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:24:23,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:24:23,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:24:23,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:24:23,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:24:23,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:24:23,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:24:23,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:24:23,099 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:24:23,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:24:23,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:24:23,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:24:23,100 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:24:23,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:24:23,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:24:23,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:24:23,386 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:24:23,386 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:24:23,387 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-11-24 05:24:23,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e4a6e7af/6ec0f57ca98642d7b3eeae9e8f0e1ba6/FLAG8c9196834 [2019-11-24 05:24:24,039 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:24:24,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-11-24 05:24:24,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e4a6e7af/6ec0f57ca98642d7b3eeae9e8f0e1ba6/FLAG8c9196834 [2019-11-24 05:24:24,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e4a6e7af/6ec0f57ca98642d7b3eeae9e8f0e1ba6 [2019-11-24 05:24:24,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:24:24,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:24:24,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:24:24,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:24:24,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:24:24,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:24:24" (1/1) ... [2019-11-24 05:24:24,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164a32c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:24, skipping insertion in model container [2019-11-24 05:24:24,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:24:24" (1/1) ... [2019-11-24 05:24:24,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:24:24,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:24:24,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:24:24,861 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:24:24,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:24:25,017 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:24:25,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25 WrapperNode [2019-11-24 05:24:25,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:24:25,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:24:25,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:24:25,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:24:25,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:24:25,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:24:25,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:24:25,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:24:25,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:24:25,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:24:25,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:24:25,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:24:25,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (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 05:24:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:24:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:24:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:24:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:24:27,804 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:24:27,805 INFO L284 CfgBuilder]: Removed 200 assume(true) statements. [2019-11-24 05:24:27,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:24:27 BoogieIcfgContainer [2019-11-24 05:24:27,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:24:27,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:24:27,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:24:27,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:24:27,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:24:24" (1/3) ... [2019-11-24 05:24:27,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b523afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:24:27, skipping insertion in model container [2019-11-24 05:24:27,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (2/3) ... [2019-11-24 05:24:27,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b523afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:24:27, skipping insertion in model container [2019-11-24 05:24:27,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:24:27" (3/3) ... [2019-11-24 05:24:27,814 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-11-24 05:24:27,824 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:24:27,832 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:24:27,843 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:24:27,869 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:24:27,869 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:24:27,869 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:24:27,870 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:24:27,870 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:24:27,870 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:24:27,870 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:24:27,871 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:24:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:24:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:24:27,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:27,891 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:27,892 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash -769456304, now seen corresponding path program 1 times [2019-11-24 05:24:27,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:27,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590032265] [2019-11-24 05:24:27,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:28,216 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 05:24:28,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590032265] [2019-11-24 05:24:28,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:24:28,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:24:28,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227250544] [2019-11-24 05:24:28,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:24:28,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:28,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:24:28,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:24:28,242 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-24 05:24:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:28,333 INFO L93 Difference]: Finished difference Result 68 states and 105 transitions. [2019-11-24 05:24:28,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:24:28,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:24:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:28,346 INFO L225 Difference]: With dead ends: 68 [2019-11-24 05:24:28,347 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 05:24:28,350 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 05:24:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 05:24:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 05:24:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 05:24:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-24 05:24:28,391 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-24 05:24:28,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:28,392 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-24 05:24:28,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:24:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-24 05:24:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:24:28,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:28,393 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-24 05:24:28,393 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:28,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1805380527, now seen corresponding path program 1 times [2019-11-24 05:24:28,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:28,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025984274] [2019-11-24 05:24:28,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:24:28,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025984274] [2019-11-24 05:24:28,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284914615] [2019-11-24 05:24:28,986 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 05:24:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:29,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-24 05:24:29,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:24:29,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 05:24:29,333 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:24:29,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 05:24:29,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 05:24:29,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [7] total 12 [2019-11-24 05:24:29,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190888437] [2019-11-24 05:24:29,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 05:24:29,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:29,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 05:24:29,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-11-24 05:24:29,605 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 7 states. [2019-11-24 05:24:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:29,884 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2019-11-24 05:24:29,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-24 05:24:29,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-24 05:24:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:29,887 INFO L225 Difference]: With dead ends: 117 [2019-11-24 05:24:29,888 INFO L226 Difference]: Without dead ends: 79 [2019-11-24 05:24:29,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-11-24 05:24:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-24 05:24:29,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2019-11-24 05:24:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-24 05:24:29,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2019-11-24 05:24:29,908 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 13 [2019-11-24 05:24:29,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:29,908 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2019-11-24 05:24:29,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 05:24:29,908 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2019-11-24 05:24:29,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 05:24:29,913 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:29,913 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:30,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:24:30,117 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:30,117 INFO L82 PathProgramCache]: Analyzing trace with hash 2003904761, now seen corresponding path program 1 times [2019-11-24 05:24:30,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:30,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416049531] [2019-11-24 05:24:30,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:24:30,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416049531] [2019-11-24 05:24:30,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359602736] [2019-11-24 05:24:30,550 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 05:24:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:30,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-24 05:24:30,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:24:30,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:30,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:30,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:30,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:30,808 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:30,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,255 WARN L192 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 77 [2019-11-24 05:24:31,457 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-11-24 05:24:31,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,505 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,531 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,632 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 05:24:31,710 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:24:31,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,839 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,935 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,935 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,936 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,936 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,937 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,113 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2019-11-24 05:24:32,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 05:24:32,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 05:24:32,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,269 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,318 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-24 05:24:32,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:24:32,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [141645413] [2019-11-24 05:24:32,397 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:24:32,398 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:24:32,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:24:32,416 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:24:32,416 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:24:43,129 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:24:44,795 WARN L192 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:24:44,920 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:24:45,553 WARN L192 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 605 [2019-11-24 05:24:46,727 WARN L192 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 706 [2019-11-24 05:24:58,095 WARN L192 SmtUtils]: Spent 8.32 s on a formula simplification. DAG size of input: 1438 DAG size of output: 1182 [2019-11-24 05:25:20,936 WARN L192 SmtUtils]: Spent 10.11 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1144