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_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:39:42,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:39:42,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:39:42,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:39:42,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:39:42,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:39:42,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:39:42,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:39:42,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:39:42,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:39:42,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:39:42,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:39:42,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:39:42,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:39:42,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:39:42,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:39:42,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:39:42,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:39:42,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:39:42,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:39:42,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:39:42,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:39:42,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:39:42,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:39:42,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:39:42,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:39:42,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:39:42,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:39:42,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:39:42,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:39:42,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:39:42,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:39:42,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:39:42,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:39:42,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:39:42,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:39:42,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:39:42,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:39:42,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:39:42,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:39:42,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:39:42,487 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 01:39:42,515 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:39:42,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:39:42,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:39:42,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:39:42,518 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:39:42,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:39:42,519 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:39:42,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:39:42,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:39:42,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:39:42,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:39:42,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:39:42,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:39:42,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:39:42,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:39:42,522 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:39:42,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:39:42,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:39:42,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:39:42,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:39:42,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:39:42,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:39:42,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:39:42,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:39:42,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:39:42,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:39:42,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:39:42,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:39:42,525 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 01:39:42,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:39:42,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:39:42,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:39:42,831 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:39:42,832 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:39:42,833 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20.c [2019-10-15 01:39:42,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4042f863e/dc57d6859c5f4e9fafc5d3778e601a55/FLAG84d1937b7 [2019-10-15 01:39:43,460 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:39:43,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label20.c [2019-10-15 01:39:43,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4042f863e/dc57d6859c5f4e9fafc5d3778e601a55/FLAG84d1937b7 [2019-10-15 01:39:43,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4042f863e/dc57d6859c5f4e9fafc5d3778e601a55 [2019-10-15 01:39:43,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:39:43,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:39:43,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:39:43,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:39:43,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:39:43,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:39:43" (1/1) ... [2019-10-15 01:39:43,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a725cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:43, skipping insertion in model container [2019-10-15 01:39:43,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:39:43" (1/1) ... [2019-10-15 01:39:43,787 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:39:43,858 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:39:44,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:39:44,458 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:39:44,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:39:44,615 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:39:44,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44 WrapperNode [2019-10-15 01:39:44,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:39:44,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:39:44,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:39:44,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:39:44,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (1/1) ... [2019-10-15 01:39:44,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:39:44,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:39:44,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:39:44,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:39:44,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (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 01:39:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:39:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:39:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:39:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:39:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:39:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:39:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:39:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:39:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:39:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:39:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:39:46,819 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:39:46,821 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:39:46,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:39:46 BoogieIcfgContainer [2019-10-15 01:39:46,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:39:46,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:39:46,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:39:46,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:39:46,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:39:43" (1/3) ... [2019-10-15 01:39:46,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7346b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:39:46, skipping insertion in model container [2019-10-15 01:39:46,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:44" (2/3) ... [2019-10-15 01:39:46,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7346b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:39:46, skipping insertion in model container [2019-10-15 01:39:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:39:46" (3/3) ... [2019-10-15 01:39:46,831 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label20.c [2019-10-15 01:39:46,841 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:39:46,850 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:39:46,862 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:39:46,888 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:39:46,889 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:39:46,889 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:39:46,889 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:39:46,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:39:46,890 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:39:46,890 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:39:46,890 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:39:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-15 01:39:46,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 01:39:46,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:46,922 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 01:39:46,924 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:46,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:46,930 INFO L82 PathProgramCache]: Analyzing trace with hash 826139497, now seen corresponding path program 1 times [2019-10-15 01:39:46,940 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:46,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751212326] [2019-10-15 01:39:46,941 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:46,941 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:46,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:47,397 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 01:39:47,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751212326] [2019-10-15 01:39:47,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:39:47,399 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:39:47,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779171594] [2019-10-15 01:39:47,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:39:47,406 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:47,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:39:47,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:39:47,422 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-10-15 01:39:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:47,947 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-10-15 01:39:47,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:39:47,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-15 01:39:47,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:47,975 INFO L225 Difference]: With dead ends: 246 [2019-10-15 01:39:47,975 INFO L226 Difference]: Without dead ends: 157 [2019-10-15 01:39:47,982 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 01:39:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-15 01:39:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-15 01:39:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:39:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-10-15 01:39:48,088 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-10-15 01:39:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:48,089 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-10-15 01:39:48,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:39:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-10-15 01:39:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-15 01:39:48,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:48,099 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:39:48,099 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:48,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:48,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1196347136, now seen corresponding path program 1 times [2019-10-15 01:39:48,102 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:48,102 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937812639] [2019-10-15 01:39:48,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:48,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:48,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:48,307 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937812639] [2019-10-15 01:39:48,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:39:48,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:39:48,308 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862475610] [2019-10-15 01:39:48,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:39:48,311 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:48,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:39:48,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:39:48,313 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-10-15 01:39:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:48,897 INFO L93 Difference]: Finished difference Result 402 states and 725 transitions. [2019-10-15 01:39:48,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:39:48,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-15 01:39:48,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:48,902 INFO L225 Difference]: With dead ends: 402 [2019-10-15 01:39:48,903 INFO L226 Difference]: Without dead ends: 250 [2019-10-15 01:39:48,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 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 01:39:48,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-15 01:39:48,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 238. [2019-10-15 01:39:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-15 01:39:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 407 transitions. [2019-10-15 01:39:48,933 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 407 transitions. Word has length 87 [2019-10-15 01:39:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:48,934 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 407 transitions. [2019-10-15 01:39:48,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:39:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 407 transitions. [2019-10-15 01:39:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 01:39:48,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:48,937 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-10-15 01:39:48,937 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:48,938 INFO L82 PathProgramCache]: Analyzing trace with hash -2129368740, now seen corresponding path program 1 times [2019-10-15 01:39:48,938 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:48,938 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134890753] [2019-10-15 01:39:48,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:48,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:48,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:49,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134890753] [2019-10-15 01:39:49,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:39:49,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:39:49,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031740480] [2019-10-15 01:39:49,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:39:49,107 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:49,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:39:49,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:39:49,107 INFO L87 Difference]: Start difference. First operand 238 states and 407 transitions. Second operand 3 states. [2019-10-15 01:39:49,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:49,507 INFO L93 Difference]: Finished difference Result 700 states and 1242 transitions. [2019-10-15 01:39:49,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:39:49,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-10-15 01:39:49,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:49,515 INFO L225 Difference]: With dead ends: 700 [2019-10-15 01:39:49,515 INFO L226 Difference]: Without dead ends: 467 [2019-10-15 01:39:49,517 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 01:39:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-10-15 01:39:49,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2019-10-15 01:39:49,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-15 01:39:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 737 transitions. [2019-10-15 01:39:49,563 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 737 transitions. Word has length 88 [2019-10-15 01:39:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:49,564 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 737 transitions. [2019-10-15 01:39:49,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:39:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 737 transitions. [2019-10-15 01:39:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:39:49,570 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:49,570 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 01:39:49,571 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:49,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:49,571 INFO L82 PathProgramCache]: Analyzing trace with hash 579114448, now seen corresponding path program 1 times [2019-10-15 01:39:49,571 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:49,572 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504292124] [2019-10-15 01:39:49,572 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:49,572 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:49,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:49,654 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 01:39:49,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504292124] [2019-10-15 01:39:49,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:39:49,655 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:39:49,655 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946386415] [2019-10-15 01:39:49,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:39:49,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:49,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:39:49,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:39:49,656 INFO L87 Difference]: Start difference. First operand 467 states and 737 transitions. Second operand 3 states. [2019-10-15 01:39:50,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:50,087 INFO L93 Difference]: Finished difference Result 1235 states and 2049 transitions. [2019-10-15 01:39:50,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:39:50,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-15 01:39:50,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:50,094 INFO L225 Difference]: With dead ends: 1235 [2019-10-15 01:39:50,094 INFO L226 Difference]: Without dead ends: 773 [2019-10-15 01:39:50,097 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 01:39:50,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-10-15 01:39:50,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 696. [2019-10-15 01:39:50,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2019-10-15 01:39:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1128 transitions. [2019-10-15 01:39:50,145 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1128 transitions. Word has length 94 [2019-10-15 01:39:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:50,146 INFO L462 AbstractCegarLoop]: Abstraction has 696 states and 1128 transitions. [2019-10-15 01:39:50,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:39:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1128 transitions. [2019-10-15 01:39:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-15 01:39:50,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:50,154 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, 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 01:39:50,155 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:50,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:50,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1131111488, now seen corresponding path program 1 times [2019-10-15 01:39:50,155 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:50,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486605724] [2019-10-15 01:39:50,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:50,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:50,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:50,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486605724] [2019-10-15 01:39:50,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:39:50,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:39:50,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030242711] [2019-10-15 01:39:50,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:39:50,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:50,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:39:50,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:39:50,353 INFO L87 Difference]: Start difference. First operand 696 states and 1128 transitions. Second operand 6 states. [2019-10-15 01:39:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:50,911 INFO L93 Difference]: Finished difference Result 1437 states and 2458 transitions. [2019-10-15 01:39:50,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:39:50,911 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-10-15 01:39:50,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:50,917 INFO L225 Difference]: With dead ends: 1437 [2019-10-15 01:39:50,918 INFO L226 Difference]: Without dead ends: 746 [2019-10-15 01:39:50,920 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 01:39:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-15 01:39:50,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 645. [2019-10-15 01:39:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2019-10-15 01:39:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 930 transitions. [2019-10-15 01:39:50,954 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 930 transitions. Word has length 102 [2019-10-15 01:39:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:50,955 INFO L462 AbstractCegarLoop]: Abstraction has 645 states and 930 transitions. [2019-10-15 01:39:50,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:39:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 930 transitions. [2019-10-15 01:39:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-15 01:39:50,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:50,961 INFO L380 BasicCegarLoop]: trace histogram [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, 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 01:39:50,961 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:50,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1833679291, now seen corresponding path program 1 times [2019-10-15 01:39:50,962 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:50,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128676374] [2019-10-15 01:39:50,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:50,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:50,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:51,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128676374] [2019-10-15 01:39:51,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264636491] [2019-10-15 01:39:51,047 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 [2019-10-15 01:39:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:51,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:39:51,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:39:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:39:51,315 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:39:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:39:51,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:39:51,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 9 [2019-10-15 01:39:51,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115705839] [2019-10-15 01:39:51,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:39:51,444 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:51,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:39:51,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:39:51,445 INFO L87 Difference]: Start difference. First operand 645 states and 930 transitions. Second operand 4 states. [2019-10-15 01:39:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:51,859 INFO L93 Difference]: Finished difference Result 1905 states and 2790 transitions. [2019-10-15 01:39:51,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:39:51,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-10-15 01:39:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:51,870 INFO L225 Difference]: With dead ends: 1905 [2019-10-15 01:39:51,870 INFO L226 Difference]: Without dead ends: 1265 [2019-10-15 01:39:51,873 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 215 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:39:51,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2019-10-15 01:39:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2019-10-15 01:39:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2019-10-15 01:39:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1814 transitions. [2019-10-15 01:39:51,942 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1814 transitions. Word has length 111 [2019-10-15 01:39:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:51,942 INFO L462 AbstractCegarLoop]: Abstraction has 1265 states and 1814 transitions. [2019-10-15 01:39:51,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:39:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1814 transitions. [2019-10-15 01:39:51,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-15 01:39:51,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:51,949 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:39:52,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:39:52,158 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:52,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1928830253, now seen corresponding path program 1 times [2019-10-15 01:39:52,159 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:52,159 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784285324] [2019-10-15 01:39:52,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:52,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:52,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:52,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784285324] [2019-10-15 01:39:52,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156798920] [2019-10-15 01:39:52,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:39:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:52,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:39:52,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:39:52,523 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:39:52,523 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:39:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:39:52,615 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:39:52,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-10-15 01:39:52,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392930158] [2019-10-15 01:39:52,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:39:52,616 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:52,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:39:52,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:39:52,617 INFO L87 Difference]: Start difference. First operand 1265 states and 1814 transitions. Second operand 3 states. [2019-10-15 01:39:52,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:52,948 INFO L93 Difference]: Finished difference Result 1719 states and 2530 transitions. [2019-10-15 01:39:52,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:39:52,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-15 01:39:52,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:52,961 INFO L225 Difference]: With dead ends: 1719 [2019-10-15 01:39:52,962 INFO L226 Difference]: Without dead ends: 1717 [2019-10-15 01:39:52,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:39:52,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2019-10-15 01:39:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1567. [2019-10-15 01:39:53,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2019-10-15 01:39:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2285 transitions. [2019-10-15 01:39:53,033 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2285 transitions. Word has length 113 [2019-10-15 01:39:53,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:39:53,033 INFO L462 AbstractCegarLoop]: Abstraction has 1567 states and 2285 transitions. [2019-10-15 01:39:53,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:39:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2285 transitions. [2019-10-15 01:39:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 01:39:53,039 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:53,040 INFO L380 BasicCegarLoop]: trace histogram [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, 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 01:39:53,252 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:39:53,253 INFO L410 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:53,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:53,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1955114107, now seen corresponding path program 1 times [2019-10-15 01:39:53,253 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:53,253 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169114691] [2019-10-15 01:39:53,253 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:53,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:53,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:53,376 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169114691] [2019-10-15 01:39:53,376 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987757995] [2019-10-15 01:39:53,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:39:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:53,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 01:39:53,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:39:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:53,488 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:39:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:53,588 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [762898216] [2019-10-15 01:39:53,621 INFO L162 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-10-15 01:39:53,622 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:39:53,629 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:39:53,638 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:39:53,639 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:39:53,943 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 96 for LOIs [2019-10-15 01:39:56,520 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 142 for LOIs [2019-10-15 01:39:56,948 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2019-10-15 01:39:57,167 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-15 01:39:57,353 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:39:57,463 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:39:57,583 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:39:57,917 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:39:58,081 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:39:58,494 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:39:58,683 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:39:58,854 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-15 01:39:59,185 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:39:59,339 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:39:59,522 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-15 01:40:00,199 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:00,353 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:00,539 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 01:40:00,791 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:00,946 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:01,108 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:01,361 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:01,515 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:01,686 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-15 01:40:02,327 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:02,481 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:02,644 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:02,869 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:03,039 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:03,211 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-15 01:40:03,815 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:04,019 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:04,187 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-10-15 01:40:04,465 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:04,622 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:04,789 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-15 01:40:05,072 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:05,228 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:05,389 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2019-10-15 01:40:05,622 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:05,776 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:05,948 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 01:40:06,209 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:06,363 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:06,525 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 01:40:06,763 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:06,917 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:07,084 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-10-15 01:40:07,344 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:07,498 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:07,660 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2019-10-15 01:40:07,898 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:08,050 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:08,233 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 01:40:08,486 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:08,638 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:08,797 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:09,019 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:09,173 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:09,333 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:09,567 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:09,718 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:09,879 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:10,099 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:10,251 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:10,411 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 01:40:10,656 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:10,807 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:10,968 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 01:40:11,190 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:11,342 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:11,505 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-15 01:40:11,761 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:11,916 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:12,080 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-15 01:40:12,379 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:12,531 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:12,695 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 01:40:12,943 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:13,098 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:13,280 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 01:40:13,805 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:13,963 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:14,122 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:14,339 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:14,495 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:14,657 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 01:40:14,903 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:15,055 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:15,216 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:15,434 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:15,589 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:15,766 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:15,981 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:16,132 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:16,295 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 01:40:16,550 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:16,701 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:16,860 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:17,079 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:17,232 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:17,391 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-15 01:40:17,599 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:17,745 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:17,900 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:18,108 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:18,254 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:18,426 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:18,633 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:18,786 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:18,942 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-15 01:40:19,163 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:19,309 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:19,590 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:19,736 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:19,896 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2019-10-15 01:40:20,139 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:20,285 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:20,438 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:20,665 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:20,813 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:20,966 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:21,178 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:21,336 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-15 01:40:21,490 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2019-10-15 01:40:21,677 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:21,804 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:21,940 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:22,126 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:22,253 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:22,388 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:22,575 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:22,708 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:22,841 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:23,026 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:23,153 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:23,291 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-15 01:40:23,503 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:23,631 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-15 01:40:23,768 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 185