/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/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/Problem03_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:42:31,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:42:31,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:42:31,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:42:31,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:42:31,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:42:31,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:42:31,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:42:31,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:42:31,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:42:31,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:42:31,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:42:31,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:42:31,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:42:31,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:42:31,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:42:31,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:42:31,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:42:31,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:42:31,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:42:31,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:42:31,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:42:31,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:42:31,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:42:31,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:42:31,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:42:31,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:42:31,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:42:31,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:42:31,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:42:31,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:42:31,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:42:31,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:42:31,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:42:31,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:42:31,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:42:31,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:42:31,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:42:31,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:42:31,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:42:31,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:42:31,724 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 [2019-11-07 01:42:31,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:42:31,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:42:31,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:42:31,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:42:31,743 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:42:31,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:42:31,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:42:31,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:42:31,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:42:31,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:42:31,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:42:31,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:42:31,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:42:31,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:42:31,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:42:31,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:42:31,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:42:31,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:42:31,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:42:31,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:42:31,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:42:31,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:42:31,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:42:31,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:42:31,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:42:31,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:42:31,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:42:31,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:42:31,748 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 [2019-11-07 01:42:32,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:42:32,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:42:32,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:42:32,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:42:32,077 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:42:32,078 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label48.c [2019-11-07 01:42:32,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e98373ca/93fcac12e0cc47acac2145d4c9a505a3/FLAGa685eb36f [2019-11-07 01:42:32,791 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:42:32,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label48.c [2019-11-07 01:42:32,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e98373ca/93fcac12e0cc47acac2145d4c9a505a3/FLAGa685eb36f [2019-11-07 01:42:32,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e98373ca/93fcac12e0cc47acac2145d4c9a505a3 [2019-11-07 01:42:32,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:42:32,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:42:32,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:42:32,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:42:32,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:42:32,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:32" (1/1) ... [2019-11-07 01:42:32,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c1dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:32, skipping insertion in model container [2019-11-07 01:42:32,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:32" (1/1) ... [2019-11-07 01:42:32,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:42:33,075 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:42:33,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:42:33,954 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:42:34,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:42:34,362 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:42:34,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34 WrapperNode [2019-11-07 01:42:34,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:42:34,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:42:34,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:42:34,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:42:34,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... [2019-11-07 01:42:34,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:42:34,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:42:34,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:42:34,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:42:34,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:42:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:42:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:42:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:42:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:42:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:42:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:42:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:42:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:42:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:42:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:42:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:42:37,847 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:42:37,847 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:42:37,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:37 BoogieIcfgContainer [2019-11-07 01:42:37,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:42:37,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:42:37,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:42:37,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:42:37,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:32" (1/3) ... [2019-11-07 01:42:37,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39480e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:37, skipping insertion in model container [2019-11-07 01:42:37,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34" (2/3) ... [2019-11-07 01:42:37,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39480e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:37, skipping insertion in model container [2019-11-07 01:42:37,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:37" (3/3) ... [2019-11-07 01:42:37,858 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label48.c [2019-11-07 01:42:37,868 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:42:37,877 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:42:37,889 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:42:37,917 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:42:37,917 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:42:37,918 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:42:37,918 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:42:37,918 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:42:37,918 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:42:37,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:42:37,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:42:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-11-07 01:42:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-11-07 01:42:37,956 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:42:37,957 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:42:37,959 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:42:37,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:42:37,965 INFO L82 PathProgramCache]: Analyzing trace with hash 136473894, now seen corresponding path program 1 times [2019-11-07 01:42:37,975 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:42:37,975 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311405295] [2019-11-07 01:42:37,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:42:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:42:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:38,862 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311405295] [2019-11-07 01:42:38,863 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:42:38,863 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 01:42:38,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730979552] [2019-11-07 01:42:38,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:42:38,871 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:42:38,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:42:38,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:42:38,889 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 4 states. [2019-11-07 01:42:40,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:42:40,585 INFO L93 Difference]: Finished difference Result 613 states and 1182 transitions. [2019-11-07 01:42:40,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 01:42:40,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2019-11-07 01:42:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:42:40,652 INFO L225 Difference]: With dead ends: 613 [2019-11-07 01:42:40,652 INFO L226 Difference]: Without dead ends: 448 [2019-11-07 01:42:40,667 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:42:40,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-11-07 01:42:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 301. [2019-11-07 01:42:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-11-07 01:42:40,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 547 transitions. [2019-11-07 01:42:40,861 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 547 transitions. Word has length 149 [2019-11-07 01:42:40,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:42:40,868 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 547 transitions. [2019-11-07 01:42:40,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:42:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 547 transitions. [2019-11-07 01:42:40,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-11-07 01:42:40,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:42:40,892 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:42:40,893 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:42:40,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:42:40,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1532428014, now seen corresponding path program 1 times [2019-11-07 01:42:40,894 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:42:40,902 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033050979] [2019-11-07 01:42:40,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:42:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:42:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:41,177 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033050979] [2019-11-07 01:42:41,177 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:42:41,177 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:42:41,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704417897] [2019-11-07 01:42:41,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:42:41,183 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:42:41,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:42:41,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:42:41,183 INFO L87 Difference]: Start difference. First operand 301 states and 547 transitions. Second operand 3 states. [2019-11-07 01:42:42,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:42:42,172 INFO L93 Difference]: Finished difference Result 891 states and 1642 transitions. [2019-11-07 01:42:42,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:42:42,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-11-07 01:42:42,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:42:42,182 INFO L225 Difference]: With dead ends: 891 [2019-11-07 01:42:42,183 INFO L226 Difference]: Without dead ends: 595 [2019-11-07 01:42:42,185 INFO L630 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 [2019-11-07 01:42:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2019-11-07 01:42:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2019-11-07 01:42:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-11-07 01:42:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 993 transitions. [2019-11-07 01:42:42,211 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 993 transitions. Word has length 161 [2019-11-07 01:42:42,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:42:42,212 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 993 transitions. [2019-11-07 01:42:42,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:42:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 993 transitions. [2019-11-07 01:42:42,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 01:42:42,215 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:42:42,215 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:42:42,215 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:42:42,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:42:42,216 INFO L82 PathProgramCache]: Analyzing trace with hash -478374162, now seen corresponding path program 1 times [2019-11-07 01:42:42,216 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:42:42,216 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386021975] [2019-11-07 01:42:42,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:42:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:42:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:42,413 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386021975] [2019-11-07 01:42:42,413 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:42:42,414 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:42:42,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069356960] [2019-11-07 01:42:42,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:42:42,415 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:42:42,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:42:42,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:42:42,416 INFO L87 Difference]: Start difference. First operand 595 states and 993 transitions. Second operand 3 states. [2019-11-07 01:42:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:42:43,543 INFO L93 Difference]: Finished difference Result 1773 states and 3010 transitions. [2019-11-07 01:42:43,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:42:43,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-11-07 01:42:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:42:43,552 INFO L225 Difference]: With dead ends: 1773 [2019-11-07 01:42:43,553 INFO L226 Difference]: Without dead ends: 1183 [2019-11-07 01:42:43,555 INFO L630 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 [2019-11-07 01:42:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-11-07 01:42:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2019-11-07 01:42:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-11-07 01:42:43,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1957 transitions. [2019-11-07 01:42:43,597 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1957 transitions. Word has length 163 [2019-11-07 01:42:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:42:43,598 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1957 transitions. [2019-11-07 01:42:43,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:42:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1957 transitions. [2019-11-07 01:42:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-07 01:42:43,604 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:42:43,604 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:42:43,605 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:42:43,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:42:43,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1566267949, now seen corresponding path program 1 times [2019-11-07 01:42:43,605 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:42:43,606 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444318627] [2019-11-07 01:42:43,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:42:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:42:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:43,719 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444318627] [2019-11-07 01:42:43,719 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:42:43,719 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:42:43,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495237957] [2019-11-07 01:42:43,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:42:43,720 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:42:43,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:42:43,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:42:43,721 INFO L87 Difference]: Start difference. First operand 1183 states and 1957 transitions. Second operand 6 states. [2019-11-07 01:42:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:42:45,269 INFO L93 Difference]: Finished difference Result 3663 states and 6809 transitions. [2019-11-07 01:42:45,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:42:45,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2019-11-07 01:42:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:42:45,295 INFO L225 Difference]: With dead ends: 3663 [2019-11-07 01:42:45,295 INFO L226 Difference]: Without dead ends: 2485 [2019-11-07 01:42:45,300 INFO L630 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 [2019-11-07 01:42:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2019-11-07 01:42:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2401. [2019-11-07 01:42:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2401 states. [2019-11-07 01:42:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 4059 transitions. [2019-11-07 01:42:45,415 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 4059 transitions. Word has length 166 [2019-11-07 01:42:45,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:42:45,418 INFO L462 AbstractCegarLoop]: Abstraction has 2401 states and 4059 transitions. [2019-11-07 01:42:45,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:42:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 4059 transitions. [2019-11-07 01:42:45,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-07 01:42:45,429 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:42:45,429 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:42:45,429 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:42:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:42:45,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1349581157, now seen corresponding path program 1 times [2019-11-07 01:42:45,430 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:42:45,430 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716769511] [2019-11-07 01:42:45,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:42:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:42:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:45,547 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716769511] [2019-11-07 01:42:45,547 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343870247] [2019-11-07 01:42:45,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:42:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:42:45,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:42:45,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:42:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:45,917 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:42:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:42:46,020 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2053637848] [2019-11-07 01:42:46,058 INFO L159 IcfgInterpreter]: Started Sifa with 153 locations of interest [2019-11-07 01:42:46,058 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:42:46,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:42:46,079 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:42:46,079 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:42:46,491 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 206 for LOIs [2019-11-07 01:42:47,999 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2019-11-07 01:42:48,163 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2019-11-07 01:42:48,379 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 219 [2019-11-07 01:42:48,519 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2019-11-07 01:42:48,971 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-11-07 01:42:49,231 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2019-11-07 01:42:49,658 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2019-11-07 01:42:49,932 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 377 [2019-11-07 01:42:50,300 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 377 [2019-11-07 01:42:50,462 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 166 for LOIs [2019-11-07 01:42:51,149 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 111 [2019-11-07 01:42:51,644 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 113 [2019-11-07 01:42:51,771 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-11-07 01:42:52,210 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 115 [2019-11-07 01:42:52,317 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:42:52,575 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:42:52,884 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:42:52,989 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:42:53,744 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 115 [2019-11-07 01:42:54,161 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:42:54,499 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:42:54,822 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:42:54,926 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:42:55,227 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:42:55,573 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:42:55,887 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:42:56,019 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:42:56,231 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:42:56,575 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 115 [2019-11-07 01:42:56,909 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:42:57,014 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:42:57,328 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:42:57,825 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:42:58,111 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:42:58,502 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:42:58,789 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:42:59,077 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:42:59,487 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 115 [2019-11-07 01:42:59,611 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:42:59,896 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:00,001 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:00,209 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:43:00,311 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:00,593 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:43:00,958 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:43:01,082 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:01,359 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:43:01,461 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:01,780 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 115 [2019-11-07 01:43:02,096 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:43:02,197 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:02,488 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:43:02,693 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:03,194 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:03,306 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:03,524 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:03,854 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:04,135 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:43:04,516 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115 [2019-11-07 01:43:04,820 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:05,118 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:43:05,640 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:05,743 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:05,996 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:43:06,331 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 115 [2019-11-07 01:43:06,705 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 115 [2019-11-07 01:43:06,983 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:43:07,267 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:43:07,583 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 115 [2019-11-07 01:43:07,689 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:07,936 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 115 [2019-11-07 01:43:08,041 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:08,244 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:43:08,552 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-11-07 01:43:08,657 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-07 01:43:08,890 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 115 [2019-11-07 01:43:09,334 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 115