java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:40:47,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:40:47,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:40:47,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:40:47,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:40:47,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:40:47,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:40:47,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:40:47,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:40:47,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:40:47,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:40:47,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:40:47,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:40:47,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:40:47,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:40:47,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:40:47,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:40:47,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:40:47,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:40:47,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:40:47,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:40:47,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:40:47,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:40:47,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:40:47,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:40:47,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:40:47,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:40:47,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:40:47,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:40:47,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:40:47,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:40:47,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:40:47,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:40:47,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:40:47,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:40:47,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:40:47,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:40:47,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:40:47,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:40:47,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:40:47,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:40:47,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:40:47,509 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:40:47,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:40:47,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:40:47,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:40:47,511 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:40:47,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:40:47,511 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:40:47,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:40:47,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:40:47,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:40:47,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:40:47,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:40:47,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:40:47,513 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:40:47,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:40:47,513 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:40:47,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:40:47,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:40:47,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:40:47,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:40:47,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:40:47,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:40:47,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:40:47,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:40:47,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:40:47,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:40:47,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:40:47,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:40:47,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:40:47,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:40:47,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:40:47,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:40:47,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:40:47,805 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:40:47,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2019-10-15 01:40:47,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8600ad9dd/73750fcb62264afb8801619a63fb8bf5/FLAGa844c94e9 [2019-10-15 01:40:48,440 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:40:48,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2019-10-15 01:40:48,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8600ad9dd/73750fcb62264afb8801619a63fb8bf5/FLAGa844c94e9 [2019-10-15 01:40:48,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8600ad9dd/73750fcb62264afb8801619a63fb8bf5 [2019-10-15 01:40:48,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:40:48,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:40:48,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:48,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:40:48,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:40:48,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:48" (1/1) ... [2019-10-15 01:40:48,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b11530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:48, skipping insertion in model container [2019-10-15 01:40:48,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:48" (1/1) ... [2019-10-15 01:40:48,725 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:40:48,775 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:40:49,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:49,305 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:40:49,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:49,436 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:40:49,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49 WrapperNode [2019-10-15 01:40:49,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:49,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:40:49,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:40:49,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:40:49,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (1/1) ... [2019-10-15 01:40:49,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:40:49,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:40:49,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:40:49,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:40:49,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (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 [2019-10-15 01:40:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:40:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:40:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:40:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:40:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:40:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:40:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:40:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:40:51,620 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:40:51,621 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:40:51,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:51 BoogieIcfgContainer [2019-10-15 01:40:51,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:40:51,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:40:51,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:40:51,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:40:51,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:40:48" (1/3) ... [2019-10-15 01:40:51,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4162281c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:51, skipping insertion in model container [2019-10-15 01:40:51,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:49" (2/3) ... [2019-10-15 01:40:51,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4162281c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:51, skipping insertion in model container [2019-10-15 01:40:51,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:51" (3/3) ... [2019-10-15 01:40:51,630 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2019-10-15 01:40:51,640 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:40:51,648 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:40:51,659 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:40:51,684 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:40:51,685 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:40:51,685 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:40:51,685 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:40:51,685 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:40:51,686 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:40:51,686 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:40:51,686 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:40:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-15 01:40:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 01:40:51,716 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:51,717 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:51,719 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:51,724 INFO L82 PathProgramCache]: Analyzing trace with hash 826819940, now seen corresponding path program 1 times [2019-10-15 01:40:51,732 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:51,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282814707] [2019-10-15 01:40:51,733 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:51,733 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:51,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:52,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282814707] [2019-10-15 01:40:52,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:52,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:52,153 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198329903] [2019-10-15 01:40:52,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:52,161 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:52,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:52,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:52,182 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-10-15 01:40:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:52,751 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-10-15 01:40:52,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:52,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-15 01:40:52,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:52,769 INFO L225 Difference]: With dead ends: 246 [2019-10-15 01:40:52,769 INFO L226 Difference]: Without dead ends: 157 [2019-10-15 01:40:52,773 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-15 01:40:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-15 01:40:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:40:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 291 transitions. [2019-10-15 01:40:52,858 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 291 transitions. Word has length 77 [2019-10-15 01:40:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:52,860 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 291 transitions. [2019-10-15 01:40:52,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 291 transitions. [2019-10-15 01:40:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:40:52,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:52,869 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:52,870 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:52,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:52,870 INFO L82 PathProgramCache]: Analyzing trace with hash 579794891, now seen corresponding path program 1 times [2019-10-15 01:40:52,871 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:52,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378556308] [2019-10-15 01:40:52,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:52,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:52,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:53,061 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:53,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378556308] [2019-10-15 01:40:53,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:53,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:40:53,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168319614] [2019-10-15 01:40:53,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:40:53,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:53,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:40:53,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:40:53,065 INFO L87 Difference]: Start difference. First operand 157 states and 291 transitions. Second operand 4 states. [2019-10-15 01:40:53,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:53,743 INFO L93 Difference]: Finished difference Result 534 states and 1025 transitions. [2019-10-15 01:40:53,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:40:53,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-10-15 01:40:53,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:53,750 INFO L225 Difference]: With dead ends: 534 [2019-10-15 01:40:53,750 INFO L226 Difference]: Without dead ends: 382 [2019-10-15 01:40:53,752 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:40:53,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-15 01:40:53,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 307. [2019-10-15 01:40:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2019-10-15 01:40:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 535 transitions. [2019-10-15 01:40:53,781 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 535 transitions. Word has length 94 [2019-10-15 01:40:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:53,782 INFO L462 AbstractCegarLoop]: Abstraction has 307 states and 535 transitions. [2019-10-15 01:40:53,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:40:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 535 transitions. [2019-10-15 01:40:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-15 01:40:53,786 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:53,786 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:53,786 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:53,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:53,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1740718389, now seen corresponding path program 1 times [2019-10-15 01:40:53,787 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:53,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306073633] [2019-10-15 01:40:53,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:53,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:53,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:54,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306073633] [2019-10-15 01:40:54,017 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:54,018 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:54,018 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681027485] [2019-10-15 01:40:54,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:54,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:54,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:54,024 INFO L87 Difference]: Start difference. First operand 307 states and 535 transitions. Second operand 3 states. [2019-10-15 01:40:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:54,464 INFO L93 Difference]: Finished difference Result 909 states and 1630 transitions. [2019-10-15 01:40:54,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:54,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2019-10-15 01:40:54,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:54,473 INFO L225 Difference]: With dead ends: 909 [2019-10-15 01:40:54,473 INFO L226 Difference]: Without dead ends: 607 [2019-10-15 01:40:54,477 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2019-10-15 01:40:54,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 457. [2019-10-15 01:40:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-15 01:40:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 740 transitions. [2019-10-15 01:40:54,517 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 740 transitions. Word has length 111 [2019-10-15 01:40:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:54,521 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 740 transitions. [2019-10-15 01:40:54,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 740 transitions. [2019-10-15 01:40:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 01:40:54,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:54,532 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:54,532 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:54,532 INFO L82 PathProgramCache]: Analyzing trace with hash 315252867, now seen corresponding path program 1 times [2019-10-15 01:40:54,533 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:54,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850483189] [2019-10-15 01:40:54,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:54,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:54,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:54,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850483189] [2019-10-15 01:40:54,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:54,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:54,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082342135] [2019-10-15 01:40:54,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:54,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:54,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:54,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:54,754 INFO L87 Difference]: Start difference. First operand 457 states and 740 transitions. Second operand 6 states. [2019-10-15 01:40:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:55,390 INFO L93 Difference]: Finished difference Result 1245 states and 2039 transitions. [2019-10-15 01:40:55,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:55,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2019-10-15 01:40:55,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:55,397 INFO L225 Difference]: With dead ends: 1245 [2019-10-15 01:40:55,397 INFO L226 Difference]: Without dead ends: 793 [2019-10-15 01:40:55,400 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-15 01:40:55,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 706. [2019-10-15 01:40:55,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-15 01:40:55,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1058 transitions. [2019-10-15 01:40:55,463 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1058 transitions. Word has length 147 [2019-10-15 01:40:55,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:55,464 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 1058 transitions. [2019-10-15 01:40:55,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1058 transitions. [2019-10-15 01:40:55,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:40:55,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:55,468 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:55,469 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash -757795538, now seen corresponding path program 1 times [2019-10-15 01:40:55,470 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:55,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358214912] [2019-10-15 01:40:55,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:55,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:55,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:40:55,587 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358214912] [2019-10-15 01:40:55,587 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:55,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:55,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731904249] [2019-10-15 01:40:55,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:55,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:55,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:55,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:55,589 INFO L87 Difference]: Start difference. First operand 706 states and 1058 transitions. Second operand 3 states. [2019-10-15 01:40:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:56,093 INFO L93 Difference]: Finished difference Result 1863 states and 2844 transitions. [2019-10-15 01:40:56,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:56,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-15 01:40:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:56,095 INFO L225 Difference]: With dead ends: 1863 [2019-10-15 01:40:56,096 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:40:56,100 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:40:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:40:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:40:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:40:56,101 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2019-10-15 01:40:56,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:56,101 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:40:56,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:40:56,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:40:56,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:40:56,520 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2019-10-15 01:40:56,569 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~a8~0 |old(~a8~0)|) [2019-10-15 01:40:56,569 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:40:56,569 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-15 01:40:56,569 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-15 01:40:56,570 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-15 01:40:56,570 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-15 01:40:56,570 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-15 01:40:56,570 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-15 01:40:56,570 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-15 01:40:56,571 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-15 01:40:56,571 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-15 01:40:56,571 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-15 01:40:56,571 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-15 01:40:56,572 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-15 01:40:56,572 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-15 01:40:56,573 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-15 01:40:56,573 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-15 01:40:56,573 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-15 01:40:56,574 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 494) no Hoare annotation was computed. [2019-10-15 01:40:56,574 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-15 01:40:56,574 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-15 01:40:56,574 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-15 01:40:56,575 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-15 01:40:56,575 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-15 01:40:56,575 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-15 01:40:56,575 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-15 01:40:56,577 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-15 01:40:56,577 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-15 01:40:56,577 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-15 01:40:56,577 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-15 01:40:56,577 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-15 01:40:56,578 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-15 01:40:56,578 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:56,578 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:56,578 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-15 01:40:56,582 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-15 01:40:56,582 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-15 01:40:56,582 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-15 01:40:56,582 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-15 01:40:56,583 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-15 01:40:56,583 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-15 01:40:56,583 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-15 01:40:56,587 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-15 01:40:56,587 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-15 01:40:56,588 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-15 01:40:56,589 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= 14 |old(~a8~0)|)) (.cse4 (= 5 |old(~a16~0)|)) (.cse1 (not (= 1 |old(~a7~0)|))) (.cse5 (not (= 4 |old(~a16~0)|))) (.cse6 (not (= ~a20~0 1))) (.cse0 (= ~a8~0 |old(~a8~0)|)) (.cse3 (= 13 |old(~a8~0)|)) (.cse7 (= 1 |old(~a20~0)|))) (and (or (and (= 1 ~a7~0) .cse0) .cse1) (or .cse0 .cse2 .cse3) (or (and .cse0 (not (= ~a16~0 5))) .cse4 .cse2) (or (and (= ~a16~0 4) .cse0) .cse5) (or .cse6 (or .cse4 .cse1) .cse7) (or .cse5 .cse6 .cse7) (or (and .cse6 .cse0) .cse3 .cse7))) [2019-10-15 01:40:56,589 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-15 01:40:56,589 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:56,589 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-15 01:40:56,589 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-15 01:40:56,589 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-15 01:40:56,589 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-15 01:40:56,590 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-15 01:40:56,590 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-15 01:40:56,590 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:56,590 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-15 01:40:56,590 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-15 01:40:56,593 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-15 01:40:56,593 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-15 01:40:56,594 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-15 01:40:56,595 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-15 01:40:56,595 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-15 01:40:56,595 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-15 01:40:56,595 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:40:56,595 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= 14 ~a8~0)) (not (= ~a8~0 13))) [2019-10-15 01:40:56,595 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:40:56,596 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:40:56,596 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= ~a8~0 |old(~a8~0)|) (= 14 |old(~a8~0)|) (= 13 |old(~a8~0)|)) [2019-10-15 01:40:56,596 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-10-15 01:40:56,596 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (not (= 14 ~a8~0))) (.cse1 (not (= ~a8~0 13)))) (or (= 1 ~a7~0) (and .cse0 .cse1) (and .cse0 (not (= ~a16~0 5))) (= ~a16~0 4) (= 14 |old(~a8~0)|) (= 13 |old(~a8~0)|) (and (not (= ~a20~0 1)) .cse1))) [2019-10-15 01:40:56,596 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-10-15 01:40:56,597 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-15 01:40:56,597 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= 14 ~a8~0))) (.cse1 (not (= ~a8~0 13)))) (or (= 1 ~a7~0) (and .cse0 .cse1) (and .cse0 (not (= ~a16~0 5))) (= ~a16~0 4) (= 14 |old(~a8~0)|) (= 13 |old(~a8~0)|) (and (not (= ~a20~0 1)) .cse1))) [2019-10-15 01:40:56,597 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-10-15 01:40:56,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:40:56 BoogieIcfgContainer [2019-10-15 01:40:56,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:40:56,622 INFO L168 Benchmark]: Toolchain (without parser) took 7914.73 ms. Allocated memory was 138.4 MB in the beginning and 329.8 MB in the end (delta: 191.4 MB). Free memory was 100.6 MB in the beginning and 204.0 MB in the end (delta: -103.4 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:56,623 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:40:56,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.12 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.1 MB in the beginning and 170.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:56,625 INFO L168 Benchmark]: Boogie Preprocessor took 139.74 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 165.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:56,626 INFO L168 Benchmark]: RCFGBuilder took 2044.30 ms. Allocated memory was 205.5 MB in the beginning and 251.1 MB in the end (delta: 45.6 MB). Free memory was 165.8 MB in the beginning and 217.5 MB in the end (delta: -51.7 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:56,627 INFO L168 Benchmark]: TraceAbstraction took 4996.95 ms. Allocated memory was 251.1 MB in the beginning and 329.8 MB in the end (delta: 78.6 MB). Free memory was 215.5 MB in the beginning and 204.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:56,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.12 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.1 MB in the beginning and 170.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.74 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 165.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2044.30 ms. Allocated memory was 205.5 MB in the beginning and 251.1 MB in the end (delta: 45.6 MB). Free memory was 165.8 MB in the beginning and 217.5 MB in the end (delta: -51.7 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4996.95 ms. Allocated memory was 251.1 MB in the beginning and 329.8 MB in the end (delta: 78.6 MB). Free memory was 215.5 MB in the beginning and 204.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 494]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((1 == a7 || (!(14 == a8) && !(a8 == 13))) || (!(14 == a8) && !(a16 == 5))) || a16 == 4) || 14 == \old(a8)) || 13 == \old(a8)) || (!(a20 == 1) && !(a8 == 13)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 512 SDtfs, 410 SDslu, 107 SDs, 0 SdLazy, 1588 SolverSat, 366 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 312 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 43 PreInvPairs, 73 NumberOfFragments, 196 HoareAnnotationTreeSize, 43 FomulaSimplifications, 929 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 444 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 591 NumberOfCodeBlocks, 591 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 228988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 206/206 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...