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/Problem02_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:41:11,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:41:11,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:41:11,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:41:11,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:41:11,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:41:11,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:41:11,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:41:11,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:41:11,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:41:11,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:41:11,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:41:11,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:41:11,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:41:11,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:41:11,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:41:11,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:41:11,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:41:11,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:41:11,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:41:11,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:41:11,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:41:11,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:41:11,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:41:11,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:41:11,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:41:11,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:41:11,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:41:11,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:41:11,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:41:11,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:41:11,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:41:11,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:41:11,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:41:11,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:41:11,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:41:11,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:41:11,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:41:11,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:41:11,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:41:11,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:41:11,763 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 01:41:11,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:41:11,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:41:11,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:41:11,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:41:11,780 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:41:11,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:41:11,780 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:41:11,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:41:11,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:41:11,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:41:11,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:41:11,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:41:11,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:41:11,782 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:41:11,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:41:11,782 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:41:11,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:41:11,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:41:11,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:41:11,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:41:11,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:41:11,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:41:11,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:41:11,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:41:11,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:41:11,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:41:11,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:41:11,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:41:11,785 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 01:41:12,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:41:12,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:41:12,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:41:12,155 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:41:12,156 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:41:12,156 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2019-10-15 01:41:12,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e134e07/46aed7666f4d48899d70cea141b3d2cf/FLAGc63d08103 [2019-10-15 01:41:12,828 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:41:12,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2019-10-15 01:41:12,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e134e07/46aed7666f4d48899d70cea141b3d2cf/FLAGc63d08103 [2019-10-15 01:41:13,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e134e07/46aed7666f4d48899d70cea141b3d2cf [2019-10-15 01:41:13,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:41:13,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:41:13,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:41:13,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:41:13,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:41:13,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335c57fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13, skipping insertion in model container [2019-10-15 01:41:13,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,118 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:41:13,176 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:41:13,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:41:13,676 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:41:13,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:41:13,832 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:41:13,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13 WrapperNode [2019-10-15 01:41:13,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:41:13,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:41:13,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:41:13,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:41:13,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (1/1) ... [2019-10-15 01:41:13,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:41:13,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:41:13,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:41:13,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:41:13,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (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 01:41:14,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:41:14,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:41:14,063 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:41:14,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:41:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:41:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:41:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:41:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:41:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:41:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:41:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:41:16,172 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:41:16,172 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:41:16,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:41:16 BoogieIcfgContainer [2019-10-15 01:41:16,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:41:16,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:41:16,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:41:16,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:41:16,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:41:13" (1/3) ... [2019-10-15 01:41:16,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42af28f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:41:16, skipping insertion in model container [2019-10-15 01:41:16,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:13" (2/3) ... [2019-10-15 01:41:16,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42af28f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:41:16, skipping insertion in model container [2019-10-15 01:41:16,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:41:16" (3/3) ... [2019-10-15 01:41:16,191 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label04.c [2019-10-15 01:41:16,204 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:41:16,214 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:41:16,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:41:16,257 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:41:16,258 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:41:16,258 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:41:16,258 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:41:16,258 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:41:16,258 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:41:16,259 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:41:16,259 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:41:16,294 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 01:41:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 01:41:16,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:16,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:41:16,307 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:16,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:16,312 INFO L82 PathProgramCache]: Analyzing trace with hash -219364041, now seen corresponding path program 1 times [2019-10-15 01:41:16,319 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:16,320 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293251063] [2019-10-15 01:41:16,320 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:16,320 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:16,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:16,726 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 01:41:16,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293251063] [2019-10-15 01:41:16,728 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:41:16,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:41:16,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830946128] [2019-10-15 01:41:16,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:41:16,736 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:16,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:41:16,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:16,753 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-15 01:41:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:17,384 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-15 01:41:17,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:41:17,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-15 01:41:17,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:17,414 INFO L225 Difference]: With dead ends: 273 [2019-10-15 01:41:17,414 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 01:41:17,421 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 01:41:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 01:41:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-15 01:41:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-15 01:41:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 327 transitions. [2019-10-15 01:41:17,533 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 327 transitions. Word has length 86 [2019-10-15 01:41:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:17,534 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 327 transitions. [2019-10-15 01:41:17,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:41:17,535 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 327 transitions. [2019-10-15 01:41:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-15 01:41:17,547 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:17,547 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:41:17,547 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:17,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:17,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1874059378, now seen corresponding path program 1 times [2019-10-15 01:41:17,548 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:17,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306035065] [2019-10-15 01:41:17,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:17,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:17,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:17,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306035065] [2019-10-15 01:41:17,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:41:17,696 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:41:17,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809039991] [2019-10-15 01:41:17,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:41:17,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:17,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:41:17,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:41:17,699 INFO L87 Difference]: Start difference. First operand 175 states and 327 transitions. Second operand 6 states. [2019-10-15 01:41:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:18,418 INFO L93 Difference]: Finished difference Result 547 states and 1064 transitions. [2019-10-15 01:41:18,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:41:18,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2019-10-15 01:41:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:18,425 INFO L225 Difference]: With dead ends: 547 [2019-10-15 01:41:18,425 INFO L226 Difference]: Without dead ends: 377 [2019-10-15 01:41:18,428 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 01:41:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-15 01:41:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 355. [2019-10-15 01:41:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-15 01:41:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 641 transitions. [2019-10-15 01:41:18,485 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 641 transitions. Word has length 101 [2019-10-15 01:41:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:18,485 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 641 transitions. [2019-10-15 01:41:18,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:41:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 641 transitions. [2019-10-15 01:41:18,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 01:41:18,489 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:18,489 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:18,489 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:18,490 INFO L82 PathProgramCache]: Analyzing trace with hash -852391129, now seen corresponding path program 1 times [2019-10-15 01:41:18,490 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:18,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317539384] [2019-10-15 01:41:18,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:18,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:18,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:18,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317539384] [2019-10-15 01:41:18,678 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:41:18,678 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:41:18,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543700053] [2019-10-15 01:41:18,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:41:18,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:18,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:41:18,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:41:18,685 INFO L87 Difference]: Start difference. First operand 355 states and 641 transitions. Second operand 4 states. [2019-10-15 01:41:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:19,442 INFO L93 Difference]: Finished difference Result 1307 states and 2498 transitions. [2019-10-15 01:41:19,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:41:19,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2019-10-15 01:41:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:19,459 INFO L225 Difference]: With dead ends: 1307 [2019-10-15 01:41:19,459 INFO L226 Difference]: Without dead ends: 957 [2019-10-15 01:41:19,464 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:41:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2019-10-15 01:41:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2019-10-15 01:41:19,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2019-10-15 01:41:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1604 transitions. [2019-10-15 01:41:19,559 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1604 transitions. Word has length 112 [2019-10-15 01:41:19,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:19,560 INFO L462 AbstractCegarLoop]: Abstraction has 957 states and 1604 transitions. [2019-10-15 01:41:19,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:41:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1604 transitions. [2019-10-15 01:41:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 01:41:19,571 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:19,572 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:19,572 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:19,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:19,573 INFO L82 PathProgramCache]: Analyzing trace with hash -398110547, now seen corresponding path program 1 times [2019-10-15 01:41:19,573 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:19,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066679012] [2019-10-15 01:41:19,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:19,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:19,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 69 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:41:19,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066679012] [2019-10-15 01:41:19,831 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494044889] [2019-10-15 01:41:19,831 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 01:41:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:19,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:41:19,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:41:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:41:20,058 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:41:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:41:20,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [295446190] [2019-10-15 01:41:20,247 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-15 01:41:20,248 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:41:20,255 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:41:20,264 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:41:20,265 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:41:20,612 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-15 01:41:22,876 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 83 for LOIs [2019-10-15 01:41:25,391 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 19 [2019-10-15 01:41:25,473 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2019-10-15 01:41:25,667 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2019-10-15 01:41:25,890 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-10-15 01:41:25,909 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 01:41:26,183 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-10-15 01:41:26,425 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-10-15 01:41:26,729 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-10-15 01:41:27,000 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2019-10-15 01:41:27,247 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 70 [2019-10-15 01:41:27,534 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-10-15 01:41:27,790 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-10-15 01:41:28,098 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2019-10-15 01:41:28,314 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-10-15 01:41:28,604 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2019-10-15 01:41:29,132 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2019-10-15 01:41:32,922 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 01:41:32,922 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 12] total 24 [2019-10-15 01:41:32,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095914728] [2019-10-15 01:41:32,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:41:32,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:32,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:41:32,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:41:32,927 INFO L87 Difference]: Start difference. First operand 957 states and 1604 transitions. Second operand 24 states. [2019-10-15 01:41:33,213 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-10-15 01:41:33,592 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2019-10-15 01:41:34,054 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2019-10-15 01:41:34,502 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 96 [2019-10-15 01:41:34,841 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-10-15 01:41:35,189 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 95 [2019-10-15 01:41:35,403 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-10-15 01:41:35,718 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-10-15 01:41:35,962 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-10-15 01:41:36,131 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-10-15 01:41:36,306 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-10-15 01:41:36,613 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2019-10-15 01:41:36,791 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-10-15 01:41:37,090 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2019-10-15 01:41:37,448 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-10-15 01:41:37,795 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-10-15 01:41:38,913 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-10-15 01:41:39,241 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-10-15 01:41:39,648 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-10-15 01:41:41,603 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-10-15 01:41:41,884 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-10-15 01:41:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:43,513 INFO L93 Difference]: Finished difference Result 2598 states and 4527 transitions. [2019-10-15 01:41:43,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-10-15 01:41:43,514 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 159 [2019-10-15 01:41:43,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:43,514 INFO L225 Difference]: With dead ends: 2598 [2019-10-15 01:41:43,514 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:41:43,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 365 SyntacticMatches, 121 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3191 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=707, Invalid=2833, Unknown=0, NotChecked=0, Total=3540 [2019-10-15 01:41:43,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:41:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:41:43,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:41:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:41:43,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2019-10-15 01:41:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:43,529 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:41:43,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 01:41:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:41:43,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:41:43,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:41:43,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:41:44,162 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-10-15 01:41:44,631 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 34 [2019-10-15 01:41:44,977 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 97 [2019-10-15 01:41:45,297 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 97 [2019-10-15 01:41:45,300 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2019-10-15 01:41:45,300 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:41:45,300 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-10-15 01:41:45,301 INFO L443 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-10-15 01:41:45,302 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-10-15 01:41:45,303 INFO L443 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-10-15 01:41:45,304 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-10-15 01:41:45,305 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-10-15 01:41:45,306 INFO L443 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-10-15 01:41:45,307 INFO L443 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-10-15 01:41:45,308 INFO L443 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-10-15 01:41:45,308 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-10-15 01:41:45,308 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|))) (.cse1 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 (not (= 7 |old(~a28~0)|)) .cse1) (or (= 7 |old(~a17~0)|) .cse1 .cse0) (or .cse0 (= |old(~a11~0)| |old(~a19~0)|) .cse1) (or .cse0 (= 8 |old(~a28~0)|) (= 9 |old(~a28~0)|) .cse1 (= 1 |old(~a25~0)|)))) [2019-10-15 01:41:45,308 INFO L443 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:41:45,308 INFO L443 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-10-15 01:41:45,309 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-10-15 01:41:45,310 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-10-15 01:41:45,310 INFO L443 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-10-15 01:41:45,310 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-10-15 01:41:45,310 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-10-15 01:41:45,310 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-10-15 01:41:45,310 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-10-15 01:41:45,311 INFO L443 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-10-15 01:41:45,311 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-10-15 01:41:45,311 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-10-15 01:41:45,311 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-10-15 01:41:45,311 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 490) no Hoare annotation was computed. [2019-10-15 01:41:45,311 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-10-15 01:41:45,312 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-10-15 01:41:45,312 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-10-15 01:41:45,312 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-10-15 01:41:45,312 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-10-15 01:41:45,312 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:41:45,312 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 21 ~u~0) (<= 1 ~a21~0) (= 22 ~v~0) (<= 25 ~y~0) (= 3 ~c~0) (<= ~y~0 25) (= 24 ~x~0) (<= 23 ~w~0) (<= ~a21~0 1) (= 6 ~f~0) (= 26 ~z~0) (= 1 ~a~0) (= ~a11~0 0) (= 4 ~d~0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (<= ~w~0 23) (<= ~e~0 5) (<= 5 ~e~0)) [2019-10-15 01:41:45,312 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:41:45,313 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:41:45,313 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (not (<= 25 ~y~0)) (not (= 26 ~z~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0))) [2019-10-15 01:41:45,313 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (and (not (= ~a19~0 ~a11~0)) .cse0) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (and (= ~a28~0 7) .cse0) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (and (not (= ~a17~0 7)) .cse0) (not (<= 5 ~e~0)) (and (<= 10 ~a28~0) (not (= ~a25~0 1)) .cse0) (not (<= 1 ~a21~0)) (not (<= 25 ~y~0)) (not (= 26 ~z~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0)))) [2019-10-15 01:41:45,313 INFO L443 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:41:45,314 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:41:45,314 INFO L439 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (and (not (= ~a19~0 ~a11~0)) .cse0) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (and (= ~a28~0 7) .cse0) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (and (not (= ~a17~0 7)) .cse0) (not (<= 5 ~e~0)) (and (<= 10 ~a28~0) (not (= ~a25~0 1)) .cse0) (not (<= 1 ~a21~0)) (not (<= 25 ~y~0)) (not (= 26 ~z~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0)))) [2019-10-15 01:41:45,314 INFO L443 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2019-10-15 01:41:45,314 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-15 01:41:45,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:41:45 BoogieIcfgContainer [2019-10-15 01:41:45,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:41:45,345 INFO L168 Benchmark]: Toolchain (without parser) took 32244.31 ms. Allocated memory was 136.3 MB in the beginning and 809.5 MB in the end (delta: 673.2 MB). Free memory was 99.3 MB in the beginning and 551.7 MB in the end (delta: -452.4 MB). Peak memory consumption was 638.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:41:45,346 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 136.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:41:45,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.07 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 99.1 MB in the beginning and 169.1 MB in the end (delta: -70.0 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:41:45,347 INFO L168 Benchmark]: Boogie Preprocessor took 150.09 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 164.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:41:45,348 INFO L168 Benchmark]: RCFGBuilder took 2190.08 ms. Allocated memory was 202.4 MB in the beginning and 255.3 MB in the end (delta: 53.0 MB). Free memory was 164.0 MB in the beginning and 211.9 MB in the end (delta: -47.9 MB). Peak memory consumption was 118.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:41:45,349 INFO L168 Benchmark]: TraceAbstraction took 29166.87 ms. Allocated memory was 255.3 MB in the beginning and 809.5 MB in the end (delta: 554.2 MB). Free memory was 209.9 MB in the beginning and 551.7 MB in the end (delta: -341.8 MB). Peak memory consumption was 629.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:41:45,353 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 136.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.07 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 99.1 MB in the beginning and 169.1 MB in the end (delta: -70.0 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.09 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 164.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2190.08 ms. Allocated memory was 202.4 MB in the beginning and 255.3 MB in the end (delta: 53.0 MB). Free memory was 164.0 MB in the beginning and 211.9 MB in the end (delta: -47.9 MB). Peak memory consumption was 118.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29166.87 ms. Allocated memory was 255.3 MB in the beginning and 809.5 MB in the end (delta: 554.2 MB). Free memory was 209.9 MB in the beginning and 551.7 MB in the end (delta: -341.8 MB). Peak memory consumption was 629.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 490]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((!(\old(a19) <= 1) || !(7 == \old(a28))) || (!(a19 == a11) && a17 <= 8)) || !(4 == d)) || !(21 == u)) || !(e <= 5)) || !(\old(a11) <= 0)) || !(22 == v)) || !(1 == a)) || !(1 <= \old(a19))) || (a28 == 7 && a17 <= 8)) || !(0 <= \old(a11))) || !(a21 <= 1)) || !(23 <= w)) || !(0 == \old(a25))) || !(3 == c)) || !(w <= 23)) || (!(a17 == 7) && a17 <= 8)) || !(5 <= e)) || ((10 <= a28 && !(a25 == 1)) && a17 <= 8)) || !(1 <= a21)) || !(25 <= y)) || !(26 == z)) || !(y <= 25)) || !(24 == x)) || !(8 == \old(a17))) || !(6 == f) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 1 error locations. Result: SAFE, OverallTime: 29.0s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, HoareTripleCheckerStatistics: 103 SDtfs, 2520 SDslu, 123 SDs, 0 SdLazy, 4205 SolverSat, 988 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 374 SyntacticMatches, 122 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3195 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=957occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 22 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 52 PreInvPairs, 108 NumberOfFragments, 584 HoareAnnotationTreeSize, 52 FomulaSimplifications, 1920 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2665 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 247352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 475 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 282/302 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 5662, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 173, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 153, TOOLS_POST_TIME[ms]: 78, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME[ms]: 56, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME[ms]: 41, TOOLS_QUANTIFIERELIM_APPLICATIONS: 171, TOOLS_QUANTIFIERELIM_TIME[ms]: 112, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 13, FLUID_QUERY_TIME[ms]: 12, FLUID_QUERIES: 175, FLUID_YES_ANSWERS: 63, DOMAIN_JOIN_APPLICATIONS: 112, DOMAIN_JOIN_TIME[ms]: 4248, DOMAIN_ALPHA_APPLICATIONS: 63, DOMAIN_ALPHA_TIME[ms]: 941, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 79, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME[ms]: 25, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 927, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 926, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 403, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 402, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 15, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 71, DAG_COMPRESSION_PROCESSED_NODES: 3420, DAG_COMPRESSION_RETAINED_NODES: 212, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...