/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:21:17,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:21:17,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:21:17,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:21:17,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:21:17,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:21:17,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:21:17,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:21:17,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:21:17,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:21:17,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:21:17,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:21:17,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:21:17,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:21:17,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:21:17,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:21:17,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:21:17,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:21:17,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:21:17,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:21:17,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:21:17,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:21:17,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:21:17,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:21:17,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:21:17,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:21:17,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:21:17,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:21:17,191 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 05:21:17,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:21:17,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:21:17,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:21:17,212 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:21:17,212 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:21:17,212 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:21:17,212 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:21:17,213 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:21:17,213 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:21:17,213 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:21:17,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:21:17,213 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:21:17,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:21:17,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:21:17,214 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:21:17,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:21:17,215 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:21:17,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:21:17,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:21:17,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:21:17,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:21:17,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:21:17,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:21:17,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:21:17,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:21:17,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:21:17,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:21:17,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:21:17,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:21:17,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:21:17,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:21:17,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:21:17,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:21:17,218 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:21:17,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:21:17,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:21:17,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:21:17,219 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:21:17,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:21:17,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:21:17,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:21:17,515 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:21:17,515 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:21:17,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2019-11-24 05:21:17,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73ecbd40/2b9d8c3661ba4549a83692b7e08ac010/FLAG1c528130f [2019-11-24 05:21:18,063 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:21:18,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2019-11-24 05:21:18,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73ecbd40/2b9d8c3661ba4549a83692b7e08ac010/FLAG1c528130f [2019-11-24 05:21:18,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73ecbd40/2b9d8c3661ba4549a83692b7e08ac010 [2019-11-24 05:21:18,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:21:18,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:21:18,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:21:18,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:21:18,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:21:18,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:21:18" (1/1) ... [2019-11-24 05:21:18,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce60c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:18, skipping insertion in model container [2019-11-24 05:21:18,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:21:18" (1/1) ... [2019-11-24 05:21:18,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:21:18,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:21:18,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:21:18,900 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:21:19,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:21:19,042 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:21:19,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19 WrapperNode [2019-11-24 05:21:19,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:21:19,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:21:19,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:21:19,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:21:19,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:21:19,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:21:19,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:21:19,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:21:19,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (1/1) ... [2019-11-24 05:21:19,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:21:19,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:21:19,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:21:19,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:21:19,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (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 05:21:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:21:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:21:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:21:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:21:21,789 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:21:21,790 INFO L284 CfgBuilder]: Removed 198 assume(true) statements. [2019-11-24 05:21:21,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:21:21 BoogieIcfgContainer [2019-11-24 05:21:21,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:21:21,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:21:21,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:21:21,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:21:21,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:21:18" (1/3) ... [2019-11-24 05:21:21,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41180da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:21:21, skipping insertion in model container [2019-11-24 05:21:21,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:21:19" (2/3) ... [2019-11-24 05:21:21,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41180da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:21:21, skipping insertion in model container [2019-11-24 05:21:21,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:21:21" (3/3) ... [2019-11-24 05:21:21,805 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2019-11-24 05:21:21,815 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:21:21,823 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:21:21,836 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:21:21,867 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:21:21,868 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:21:21,868 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:21:21,868 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:21:21,868 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:21:21,868 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:21:21,869 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:21:21,869 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:21:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:21:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:21:21,894 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:21:21,896 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:21:21,896 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:21:21,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:21:21,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1745423153, now seen corresponding path program 1 times [2019-11-24 05:21:21,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:21:21,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369389650] [2019-11-24 05:21:21,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:21:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:22,347 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 05:21:22,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369389650] [2019-11-24 05:21:22,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:21:22,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:21:22,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768412934] [2019-11-24 05:21:22,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:21:22,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:21:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:21:22,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:21:22,374 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-24 05:21:22,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:21:22,460 INFO L93 Difference]: Finished difference Result 68 states and 105 transitions. [2019-11-24 05:21:22,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:21:22,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:21:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:21:22,474 INFO L225 Difference]: With dead ends: 68 [2019-11-24 05:21:22,474 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 05:21:22,478 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 05:21:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 05:21:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 05:21:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 05:21:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-24 05:21:22,519 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-24 05:21:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:21:22,519 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-24 05:21:22,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:21:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-24 05:21:22,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:21:22,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:21:22,521 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-24 05:21:22,521 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:21:22,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:21:22,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1724115923, now seen corresponding path program 1 times [2019-11-24 05:21:22,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:21:22,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579773669] [2019-11-24 05:21:22,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:21:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:21:23,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579773669] [2019-11-24 05:21:23,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444091862] [2019-11-24 05:21:23,011 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 05:21:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:23,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-24 05:21:23,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:21:23,262 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,580 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2019-11-24 05:21:23,801 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-11-24 05:21:23,808 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 05:21:23,809 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:21:23,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:23,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:24,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:24,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:24,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:24,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:24,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:21:24,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-24 05:21:24,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 8] total 14 [2019-11-24 05:21:24,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624314472] [2019-11-24 05:21:24,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 05:21:24,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:21:24,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 05:21:24,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-24 05:21:24,157 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 5 states. [2019-11-24 05:21:24,457 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-11-24 05:21:24,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:21:24,649 INFO L93 Difference]: Finished difference Result 101 states and 138 transitions. [2019-11-24 05:21:24,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 05:21:24,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-24 05:21:24,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:21:24,651 INFO L225 Difference]: With dead ends: 101 [2019-11-24 05:21:24,651 INFO L226 Difference]: Without dead ends: 63 [2019-11-24 05:21:24,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2019-11-24 05:21:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-24 05:21:24,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2019-11-24 05:21:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-24 05:21:24,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2019-11-24 05:21:24,669 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 13 [2019-11-24 05:21:24,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:21:24,669 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2019-11-24 05:21:24,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 05:21:24,669 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2019-11-24 05:21:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 05:21:24,671 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:21:24,671 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:21:24,884 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:21:24,885 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:21:24,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:21:24,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1495580882, now seen corresponding path program 1 times [2019-11-24 05:21:24,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:21:24,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398040936] [2019-11-24 05:21:24,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:21:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:25,496 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 05:21:25,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398040936] [2019-11-24 05:21:25,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341701938] [2019-11-24 05:21:25,498 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 05:21:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:25,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 53 conjunts are in the unsatisfiable core [2019-11-24 05:21:25,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:21:25,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:25,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:25,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:25,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:25,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:25,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,136 WARN L192 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2019-11-24 05:21:26,309 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-11-24 05:21:26,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:26,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,153 WARN L192 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 84 [2019-11-24 05:21:27,509 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-11-24 05:21:27,522 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 05:21:27,522 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:21:27,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,584 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,586 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,615 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,642 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,845 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 10 [2019-11-24 05:21:27,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 05:21:27,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2126052248] [2019-11-24 05:21:27,975 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:21:27,976 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:21:27,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:21:27,991 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:21:27,991 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:21:37,040 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:21:38,823 WARN L192 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:21:38,958 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:21:39,886 WARN L192 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 619 [2019-11-24 05:21:40,394 WARN L192 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 619 [2019-11-24 05:21:40,937 WARN L192 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 617 [2019-11-24 05:21:41,661 WARN L192 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-11-24 05:21:42,697 WARN L192 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 720 [2019-11-24 05:21:52,363 WARN L192 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 1135 DAG size of output: 922 [2019-11-24 05:21:57,990 WARN L192 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 1135 DAG size of output: 922 [2019-11-24 05:22:02,050 WARN L192 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 884 DAG size of output: 880 [2019-11-24 05:22:06,923 WARN L192 SmtUtils]: Spent 4.78 s on a formula simplification that was a NOOP. DAG size: 900 [2019-11-24 05:22:17,164 WARN L192 SmtUtils]: Spent 6.84 s on a formula simplification. DAG size of input: 903 DAG size of output: 902