/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_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:31:02,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:31:02,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:31:02,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:31:02,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:31:02,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:31:02,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:31:02,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:31:02,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:31:02,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:31:02,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:31:02,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:31:02,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:31:02,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:31:02,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:31:02,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:31:02,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:31:02,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:31:02,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:31:02,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:31:02,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:31:02,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:31:02,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:31:02,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:31:02,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:31:02,069 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 05:31:02,090 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:31:02,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:31:02,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:31:02,094 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:31:02,094 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:31:02,094 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:31:02,094 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:31:02,094 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:31:02,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:31:02,095 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:31:02,095 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:31:02,095 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:31:02,095 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:31:02,096 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:31:02,096 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:31:02,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:31:02,097 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:31:02,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:31:02,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:31:02,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:31:02,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:31:02,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:31:02,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:31:02,099 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:31:02,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:31:02,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:31:02,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:31:02,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:31:02,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:31:02,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:31:02,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:31:02,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:31:02,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:31:02,102 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:31:02,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:31:02,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:31:02,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:31:02,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:31:02,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:31:02,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:31:02,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:31:02,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:31:02,408 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:31:02,409 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-11-24 05:31:02,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116bf29b9/971a1443d93f4690b2059cb7054cc604/FLAG62d7b4276 [2019-11-24 05:31:02,955 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:31:02,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-11-24 05:31:02,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116bf29b9/971a1443d93f4690b2059cb7054cc604/FLAG62d7b4276 [2019-11-24 05:31:03,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116bf29b9/971a1443d93f4690b2059cb7054cc604 [2019-11-24 05:31:03,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:31:03,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:31:03,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:31:03,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:31:03,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:31:03,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f393570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03, skipping insertion in model container [2019-11-24 05:31:03,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:31:03,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:31:03,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:31:03,895 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:31:03,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:31:04,012 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:31:04,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04 WrapperNode [2019-11-24 05:31:04,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:31:04,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:31:04,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:31:04,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:31:04,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:31:04,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:31:04,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:31:04,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:31:04,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (1/1) ... [2019-11-24 05:31:04,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:31:04,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:31:04,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:31:04,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:31:04,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (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 05:31:04,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:31:04,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:31:04,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:31:04,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:31:07,075 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:31:07,076 INFO L284 CfgBuilder]: Removed 196 assume(true) statements. [2019-11-24 05:31:07,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:31:07 BoogieIcfgContainer [2019-11-24 05:31:07,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:31:07,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:31:07,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:31:07,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:31:07,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:31:03" (1/3) ... [2019-11-24 05:31:07,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53daed34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:31:07, skipping insertion in model container [2019-11-24 05:31:07,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:04" (2/3) ... [2019-11-24 05:31:07,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53daed34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:31:07, skipping insertion in model container [2019-11-24 05:31:07,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:31:07" (3/3) ... [2019-11-24 05:31:07,091 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2019-11-24 05:31:07,101 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:31:07,109 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:31:07,122 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:31:07,155 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:31:07,156 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:31:07,156 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:31:07,156 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:31:07,156 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:31:07,157 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:31:07,157 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:31:07,157 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:31:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-24 05:31:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:31:07,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:31:07,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:31:07,185 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:31:07,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:31:07,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1852524255, now seen corresponding path program 1 times [2019-11-24 05:31:07,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:31:07,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496029777] [2019-11-24 05:31:07,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:31:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:31:07,748 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 05:31:07,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496029777] [2019-11-24 05:31:07,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:31:07,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 05:31:07,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379881148] [2019-11-24 05:31:07,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 05:31:07,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:31:07,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 05:31:07,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-24 05:31:07,774 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-11-24 05:31:07,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:31:07,981 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-11-24 05:31:07,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 05:31:07,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-24 05:31:07,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:31:07,994 INFO L225 Difference]: With dead ends: 82 [2019-11-24 05:31:07,994 INFO L226 Difference]: Without dead ends: 51 [2019-11-24 05:31:07,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-24 05:31:08,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-24 05:31:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2019-11-24 05:31:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-24 05:31:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-24 05:31:08,040 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2019-11-24 05:31:08,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:31:08,041 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-24 05:31:08,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 05:31:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-24 05:31:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-24 05:31:08,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:31:08,042 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:31:08,042 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:31:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:31:08,043 INFO L82 PathProgramCache]: Analyzing trace with hash 976491054, now seen corresponding path program 1 times [2019-11-24 05:31:08,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:31:08,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978879981] [2019-11-24 05:31:08,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:31:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:31:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:08,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978879981] [2019-11-24 05:31:08,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756428538] [2019-11-24 05:31:08,356 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 05:31:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:31:08,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-24 05:31:08,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:31:08,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,063 WARN L192 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2019-11-24 05:31:09,189 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-24 05:31:09,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,400 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,507 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,584 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,593 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,594 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,647 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:09,886 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:31:09,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 05:31:10,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,066 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,079 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:10,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [36799595] [2019-11-24 05:31:10,173 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-24 05:31:10,173 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:31:10,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:31:10,189 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:31:10,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:31:20,074 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 05:31:21,586 WARN L192 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:31:21,718 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 05:31:23,338 WARN L192 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 891 DAG size of output: 822 [2019-11-24 05:31:31,419 WARN L192 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 921 DAG size of output: 919 [2019-11-24 05:32:11,547 WARN L192 SmtUtils]: Spent 32.10 s on a formula simplification. DAG size of input: 5407 DAG size of output: 2877