/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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:29:29,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:29:29,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:29:29,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:29:29,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:29:29,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:29:29,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:29:29,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:29:29,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:29:29,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:29:29,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:29:29,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:29:29,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:29:29,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:29:29,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:29:29,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:29:30,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:29:30,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:29:30,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:29:30,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:29:30,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:29:30,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:29:30,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:29:30,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:29:30,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:29:30,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:29:30,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:29:30,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:29:30,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:29:30,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:29:30,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:29:30,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:29:30,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:29:30,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:29:30,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:29:30,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:29:30,029 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 05:29:30,043 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:29:30,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:29:30,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:29:30,045 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:29:30,045 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:29:30,045 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:29:30,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:29:30,046 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:29:30,046 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:29:30,046 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:29:30,046 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:29:30,046 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:29:30,047 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:29:30,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:29:30,047 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:29:30,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:29:30,048 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:29:30,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:29:30,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:29:30,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:29:30,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:29:30,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:29:30,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:29:30,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:29:30,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:29:30,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:29:30,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:29:30,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:29:30,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:29:30,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:29:30,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:29:30,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:29:30,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:29:30,052 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:29:30,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:29:30,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:29:30,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:29:30,053 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:29:30,339 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:29:30,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:29:30,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:29:30,356 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:29:30,357 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:29:30,357 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-11-24 05:29:30,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be31c620/45378f3274814d099aa820cbe4d7d4bb/FLAG799b36fe2 [2019-11-24 05:29:30,995 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:29:30,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-11-24 05:29:31,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be31c620/45378f3274814d099aa820cbe4d7d4bb/FLAG799b36fe2 [2019-11-24 05:29:31,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be31c620/45378f3274814d099aa820cbe4d7d4bb [2019-11-24 05:29:31,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:29:31,334 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:29:31,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:29:31,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:29:31,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:29:31,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:31,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac184fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31, skipping insertion in model container [2019-11-24 05:29:31,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:31,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:29:31,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:29:31,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:29:31,840 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:29:31,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:29:31,978 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:29:31,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31 WrapperNode [2019-11-24 05:29:31,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:29:31,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:29:31,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:29:31,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:29:31,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:29:32,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:29:32,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:29:32,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:29:32,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (1/1) ... [2019-11-24 05:29:32,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:29:32,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:29:32,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:29:32,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:29:32,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (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 05:29:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:29:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:29:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:29:32,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:29:34,426 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:29:34,427 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-24 05:29:34,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:29:34 BoogieIcfgContainer [2019-11-24 05:29:34,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:29:34,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:29:34,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:29:34,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:29:34,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:29:31" (1/3) ... [2019-11-24 05:29:34,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38affe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:29:34, skipping insertion in model container [2019-11-24 05:29:34,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:31" (2/3) ... [2019-11-24 05:29:34,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38affe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:29:34, skipping insertion in model container [2019-11-24 05:29:34,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:29:34" (3/3) ... [2019-11-24 05:29:34,442 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-11-24 05:29:34,451 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:29:34,459 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:29:34,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:29:34,498 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:29:34,499 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:29:34,499 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:29:34,499 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:29:34,500 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:29:34,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:29:34,500 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:29:34,500 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:29:34,518 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-24 05:29:34,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:29:34,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:29:34,529 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:29:34,529 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:29:34,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:29:34,536 INFO L82 PathProgramCache]: Analyzing trace with hash -116929046, now seen corresponding path program 1 times [2019-11-24 05:29:34,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:29:34,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193796538] [2019-11-24 05:29:34,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:29:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:34,881 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 05:29:34,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193796538] [2019-11-24 05:29:34,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:29:34,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:29:34,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235687467] [2019-11-24 05:29:34,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:29:34,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:29:34,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:29:34,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:29:34,905 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-24 05:29:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:29:34,926 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-24 05:29:34,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:29:34,927 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-24 05:29:34,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:29:34,935 INFO L225 Difference]: With dead ends: 44 [2019-11-24 05:29:34,935 INFO L226 Difference]: Without dead ends: 21 [2019-11-24 05:29:34,939 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:29:34,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-24 05:29:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-24 05:29:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-24 05:29:34,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-24 05:29:34,975 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-24 05:29:34,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:29:34,976 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-24 05:29:34,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:29:34,976 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-24 05:29:34,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:29:34,976 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:29:34,977 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:29:34,977 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:29:34,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:29:34,977 INFO L82 PathProgramCache]: Analyzing trace with hash -690717636, now seen corresponding path program 1 times [2019-11-24 05:29:34,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:29:34,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152783789] [2019-11-24 05:29:34,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:29:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:35,219 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 05:29:35,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152783789] [2019-11-24 05:29:35,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:29:35,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 05:29:35,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256504497] [2019-11-24 05:29:35,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 05:29:35,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:29:35,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 05:29:35,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-24 05:29:35,224 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2019-11-24 05:29:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:29:35,433 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2019-11-24 05:29:35,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 05:29:35,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-24 05:29:35,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:29:35,435 INFO L225 Difference]: With dead ends: 57 [2019-11-24 05:29:35,435 INFO L226 Difference]: Without dead ends: 51 [2019-11-24 05:29:35,436 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 05:29:35,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-24 05:29:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2019-11-24 05:29:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-24 05:29:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-24 05:29:35,446 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2019-11-24 05:29:35,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:29:35,446 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-24 05:29:35,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 05:29:35,447 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-24 05:29:35,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-24 05:29:35,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:29:35,448 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:29:35,448 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:29:35,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:29:35,449 INFO L82 PathProgramCache]: Analyzing trace with hash -386003696, now seen corresponding path program 1 times [2019-11-24 05:29:35,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:29:35,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437490934] [2019-11-24 05:29:35,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:29:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:35,752 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 05:29:35,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437490934] [2019-11-24 05:29:35,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672816848] [2019-11-24 05:29:35,755 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 05:29:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:35,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-24 05:29:35,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:29:36,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,387 WARN L192 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 58 [2019-11-24 05:29:36,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,642 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,645 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,708 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,714 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,798 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,840 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:36,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,182 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 10 [2019-11-24 05:29:37,185 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 05:29:37,185 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:29:37,216 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 05:29:37,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:37,414 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 05:29:37,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [981992022] [2019-11-24 05:29:37,455 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-24 05:29:37,455 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:29:37,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:29:37,469 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:29:37,469 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:29:46,616 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 05:29:48,177 WARN L192 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:29:48,309 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 05:29:49,057 WARN L192 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 587 [2019-11-24 05:29:50,212 WARN L192 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-11-24 05:29:58,452 WARN L192 SmtUtils]: Spent 6.50 s on a formula simplification. DAG size of input: 1080 DAG size of output: 956 [2019-11-24 05:30:26,356 WARN L192 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 939 DAG size of output: 923