java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:39:17,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:39:17,718 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:39:17,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:39:17,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:39:17,737 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:39:17,739 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:39:17,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:39:17,743 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:39:17,744 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:39:17,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:39:17,747 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:39:17,748 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:39:17,749 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:39:17,753 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:39:17,754 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:39:17,755 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:39:17,758 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:39:17,768 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:39:17,770 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:39:17,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:39:17,776 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:39:17,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 17:39:17,793 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:39:17,793 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:39:17,794 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:39:17,795 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:39:17,797 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:39:17,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:39:17,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:39:17,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:39:17,829 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:39:17,829 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:39:17,830 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:39:17,830 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:39:17,830 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:39:17,830 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:39:17,831 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:39:17,831 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:39:17,832 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:39:17,832 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:39:17,833 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:39:17,834 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:39:17,834 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:39:17,834 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:39:17,834 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:39:17,836 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:39:17,836 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:39:17,836 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:39:17,836 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:39:17,836 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:39:17,837 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:39:17,837 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:39:17,837 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:39:17,837 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:39:17,837 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:39:17,838 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:39:17,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:39:17,838 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:39:17,838 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:39:17,838 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:39:17,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:39:17,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:39:17,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:39:17,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:39:17,929 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:39:17,929 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-09-14 17:39:18,280 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ce54120/dfefcbe461d046ba8dde0d1a79d24c08/FLAG5f2807e38 [2018-09-14 17:39:18,538 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:39:18,539 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-09-14 17:39:18,555 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ce54120/dfefcbe461d046ba8dde0d1a79d24c08/FLAG5f2807e38 [2018-09-14 17:39:18,579 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ce54120/dfefcbe461d046ba8dde0d1a79d24c08 [2018-09-14 17:39:18,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:39:18,595 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:39:18,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:39:18,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:39:18,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:39:18,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:39:18" (1/1) ... [2018-09-14 17:39:18,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746fe49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:18, skipping insertion in model container [2018-09-14 17:39:18,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:39:18" (1/1) ... [2018-09-14 17:39:18,620 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:39:19,172 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:39:19,190 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:39:19,375 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:39:19,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19 WrapperNode [2018-09-14 17:39:19,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:39:19,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:39:19,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:39:19,430 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:39:19,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:39:19,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:39:19,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:39:19,556 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:39:19,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (1/1) ... [2018-09-14 17:39:19,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:39:19,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:39:19,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:39:19,880 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:39:19,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (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 [2018-09-14 17:39:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:39:19,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:39:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:39:19,948 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:39:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:39:19,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:39:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:39:19,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:39:23,615 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:39:23,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:39:23 BoogieIcfgContainer [2018-09-14 17:39:23,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:39:23,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:39:23,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:39:23,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:39:23,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:39:18" (1/3) ... [2018-09-14 17:39:23,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142f888e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:39:23, skipping insertion in model container [2018-09-14 17:39:23,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:39:19" (2/3) ... [2018-09-14 17:39:23,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142f888e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:39:23, skipping insertion in model container [2018-09-14 17:39:23,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:39:23" (3/3) ... [2018-09-14 17:39:23,624 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23_true-unreach-call_false-termination.c [2018-09-14 17:39:23,634 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:39:23,644 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:39:23,693 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:39:23,694 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:39:23,695 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:39:23,695 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:39:23,695 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:39:23,695 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:39:23,696 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:39:23,696 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:39:23,696 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:39:23,722 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-14 17:39:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-14 17:39:23,731 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:23,732 INFO L376 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] [2018-09-14 17:39:23,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:23,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1395557711, now seen corresponding path program 1 times [2018-09-14 17:39:23,742 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:23,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:23,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:23,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:23,790 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:24,163 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:39:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:24,271 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:39:24,271 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:39:24,272 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:39:24,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:39:24,295 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:39:24,295 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:39:24,298 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-09-14 17:39:26,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:26,154 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-09-14 17:39:26,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:39:26,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-09-14 17:39:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:26,177 INFO L225 Difference]: With dead ends: 691 [2018-09-14 17:39:26,178 INFO L226 Difference]: Without dead ends: 434 [2018-09-14 17:39:26,188 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:39:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-09-14 17:39:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-09-14 17:39:26,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-14 17:39:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-09-14 17:39:26,283 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 39 [2018-09-14 17:39:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:39:26,283 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-09-14 17:39:26,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:39:26,284 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-09-14 17:39:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-14 17:39:26,290 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:26,291 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:39:26,291 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:26,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1621257519, now seen corresponding path program 1 times [2018-09-14 17:39:26,292 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:26,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:26,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:26,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:26,293 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:26,582 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:39:26,583 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:39:26,583 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:39:26,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:39:26,586 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:39:26,586 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:39:26,586 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-09-14 17:39:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:28,644 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-09-14 17:39:28,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:39:28,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-09-14 17:39:28,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:28,653 INFO L225 Difference]: With dead ends: 1062 [2018-09-14 17:39:28,654 INFO L226 Difference]: Without dead ends: 634 [2018-09-14 17:39:28,656 INFO L604 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 [2018-09-14 17:39:28,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-09-14 17:39:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-09-14 17:39:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-09-14 17:39:28,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-09-14 17:39:28,698 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 114 [2018-09-14 17:39:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:39:28,699 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-09-14 17:39:28,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:39:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-09-14 17:39:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-14 17:39:28,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:28,703 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:39:28,704 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:28,704 INFO L82 PathProgramCache]: Analyzing trace with hash -985362584, now seen corresponding path program 1 times [2018-09-14 17:39:28,704 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:28,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:28,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:28,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:28,706 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:29,170 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:39:29,170 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:39:29,170 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:39:29,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:39:29,171 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:39:29,172 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:39:29,172 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 6 states. [2018-09-14 17:39:33,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:33,943 INFO L93 Difference]: Finished difference Result 1819 states and 2988 transitions. [2018-09-14 17:39:33,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-14 17:39:33,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-09-14 17:39:33,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:33,953 INFO L225 Difference]: With dead ends: 1819 [2018-09-14 17:39:33,953 INFO L226 Difference]: Without dead ends: 1200 [2018-09-14 17:39:33,958 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:39:33,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2018-09-14 17:39:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1140. [2018-09-14 17:39:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2018-09-14 17:39:34,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1733 transitions. [2018-09-14 17:39:34,017 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1733 transitions. Word has length 123 [2018-09-14 17:39:34,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:39:34,018 INFO L480 AbstractCegarLoop]: Abstraction has 1140 states and 1733 transitions. [2018-09-14 17:39:34,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:39:34,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1733 transitions. [2018-09-14 17:39:34,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-14 17:39:34,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:34,038 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:39:34,038 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:34,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1921964902, now seen corresponding path program 1 times [2018-09-14 17:39:34,038 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:34,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:34,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:34,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:34,040 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:34,750 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:34,751 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:39:34,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:34,762 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:34,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:35,617 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-14 17:39:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 96 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:35,788 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:35,904 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-14 17:39:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 69 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:36,771 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:36,771 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:39:36,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:36,801 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:36,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 96 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:37,344 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:37,469 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-14 17:39:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 69 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:37,976 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:39:37,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8, 8, 8] total 26 [2018-09-14 17:39:37,977 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:39:37,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-14 17:39:37,979 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-14 17:39:37,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2018-09-14 17:39:37,980 INFO L87 Difference]: Start difference. First operand 1140 states and 1733 transitions. Second operand 15 states. [2018-09-14 17:39:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:45,117 INFO L93 Difference]: Finished difference Result 3259 states and 4983 transitions. [2018-09-14 17:39:45,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-14 17:39:45,118 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 208 [2018-09-14 17:39:45,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:45,130 INFO L225 Difference]: With dead ends: 3259 [2018-09-14 17:39:45,131 INFO L226 Difference]: Without dead ends: 1926 [2018-09-14 17:39:45,139 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 815 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2018-09-14 17:39:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2018-09-14 17:39:45,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1617. [2018-09-14 17:39:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1617 states. [2018-09-14 17:39:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2114 transitions. [2018-09-14 17:39:45,193 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2114 transitions. Word has length 208 [2018-09-14 17:39:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:39:45,194 INFO L480 AbstractCegarLoop]: Abstraction has 1617 states and 2114 transitions. [2018-09-14 17:39:45,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-14 17:39:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2114 transitions. [2018-09-14 17:39:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-14 17:39:45,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:45,199 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:39:45,199 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1530501453, now seen corresponding path program 1 times [2018-09-14 17:39:45,200 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:45,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:45,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:45,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:45,201 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:46,057 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 13 [2018-09-14 17:39:46,294 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-14 17:39:46,759 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-14 17:39:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 113 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:39:47,141 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:47,141 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:39:47,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:47,158 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:47,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-14 17:39:47,435 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:47,696 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 64 proven. 79 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:39:47,718 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:39:47,718 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 13 [2018-09-14 17:39:47,718 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:39:47,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:39:47,719 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:39:47,719 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:39:47,719 INFO L87 Difference]: Start difference. First operand 1617 states and 2114 transitions. Second operand 5 states. [2018-09-14 17:39:49,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:49,925 INFO L93 Difference]: Finished difference Result 6361 states and 8359 transitions. [2018-09-14 17:39:49,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:39:49,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2018-09-14 17:39:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:49,950 INFO L225 Difference]: With dead ends: 6361 [2018-09-14 17:39:49,950 INFO L226 Difference]: Without dead ends: 4750 [2018-09-14 17:39:49,962 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 462 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-14 17:39:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2018-09-14 17:39:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 4632. [2018-09-14 17:39:50,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2018-09-14 17:39:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 5729 transitions. [2018-09-14 17:39:50,083 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 5729 transitions. Word has length 233 [2018-09-14 17:39:50,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:39:50,083 INFO L480 AbstractCegarLoop]: Abstraction has 4632 states and 5729 transitions. [2018-09-14 17:39:50,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:39:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 5729 transitions. [2018-09-14 17:39:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-09-14 17:39:50,091 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:50,091 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:39:50,092 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:50,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1076420551, now seen corresponding path program 1 times [2018-09-14 17:39:50,092 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:50,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:50,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:50,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:50,093 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:39:50,619 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:50,619 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:39:50,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:50,627 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:50,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:50,875 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:39:50,876 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:51,065 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-09-14 17:39:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:39:51,288 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:51,288 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:39:51,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:51,310 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:51,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 261 proven. 6 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:39:51,663 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:39:52,074 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:39:52,074 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 8 [2018-09-14 17:39:52,075 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:39:52,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-14 17:39:52,076 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-14 17:39:52,076 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:39:52,076 INFO L87 Difference]: Start difference. First operand 4632 states and 5729 transitions. Second operand 7 states. [2018-09-14 17:39:55,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:39:55,128 INFO L93 Difference]: Finished difference Result 12523 states and 15946 transitions. [2018-09-14 17:39:55,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-14 17:39:55,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2018-09-14 17:39:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:39:55,170 INFO L225 Difference]: With dead ends: 12523 [2018-09-14 17:39:55,170 INFO L226 Difference]: Without dead ends: 7897 [2018-09-14 17:39:55,199 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1395 GetRequests, 1373 SyntacticMatches, 11 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:39:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2018-09-14 17:39:55,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7693. [2018-09-14 17:39:55,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7693 states. [2018-09-14 17:39:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7693 states to 7693 states and 9152 transitions. [2018-09-14 17:39:55,395 INFO L78 Accepts]: Start accepts. Automaton has 7693 states and 9152 transitions. Word has length 344 [2018-09-14 17:39:55,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:39:55,396 INFO L480 AbstractCegarLoop]: Abstraction has 7693 states and 9152 transitions. [2018-09-14 17:39:55,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-14 17:39:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7693 states and 9152 transitions. [2018-09-14 17:39:55,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-09-14 17:39:55,413 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:39:55,414 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:39:55,414 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:39:55,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1614805097, now seen corresponding path program 1 times [2018-09-14 17:39:55,415 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:39:55,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:55,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:55,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:39:55,416 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:39:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 417 proven. 160 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-09-14 17:39:56,498 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:56,498 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:39:56,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:56,509 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:56,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:57,005 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-14 17:39:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-14 17:39:57,326 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:57,467 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-14 17:39:57,610 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-14 17:39:57,803 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-14 17:39:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-14 17:39:58,183 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:39:58,183 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:39:58,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:39:58,200 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:39:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:39:58,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:39:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 230 proven. 156 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-14 17:39:58,743 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:39:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 149 proven. 237 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-14 17:39:59,392 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:39:59,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 8, 8] total 16 [2018-09-14 17:39:59,393 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:39:59,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-14 17:39:59,394 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-14 17:39:59,394 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-09-14 17:39:59,394 INFO L87 Difference]: Start difference. First operand 7693 states and 9152 transitions. Second operand 13 states. [2018-09-14 17:40:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:40:03,407 INFO L93 Difference]: Finished difference Result 15956 states and 19426 transitions. [2018-09-14 17:40:03,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-14 17:40:03,407 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 429 [2018-09-14 17:40:03,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:40:03,453 INFO L225 Difference]: With dead ends: 15956 [2018-09-14 17:40:03,454 INFO L226 Difference]: Without dead ends: 8066 [2018-09-14 17:40:03,493 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1744 GetRequests, 1706 SyntacticMatches, 15 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2018-09-14 17:40:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states. [2018-09-14 17:40:03,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 7470. [2018-09-14 17:40:03,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2018-09-14 17:40:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 8725 transitions. [2018-09-14 17:40:03,694 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 8725 transitions. Word has length 429 [2018-09-14 17:40:03,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:40:03,695 INFO L480 AbstractCegarLoop]: Abstraction has 7470 states and 8725 transitions. [2018-09-14 17:40:03,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-14 17:40:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 8725 transitions. [2018-09-14 17:40:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2018-09-14 17:40:03,713 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:40:03,713 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:40:03,714 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:40:03,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1217933949, now seen corresponding path program 2 times [2018-09-14 17:40:03,714 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:40:03,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:03,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:03,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:03,715 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:40:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 404 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:40:04,965 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:04,965 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:40:04,973 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-14 17:40:04,973 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-14 17:40:05,094 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-14 17:40:05,094 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-14 17:40:05,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:05,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:05,977 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:05,977 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:40:05,994 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-14 17:40:05,994 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-14 17:40:06,260 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-14 17:40:06,260 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-14 17:40:06,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 380 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:06,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:07,481 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 131 proven. 255 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:07,483 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:40:07,484 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5, 5, 8, 8] total 30 [2018-09-14 17:40:07,484 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:40:07,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-14 17:40:07,485 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-14 17:40:07,486 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2018-09-14 17:40:07,489 INFO L87 Difference]: Start difference. First operand 7470 states and 8725 transitions. Second operand 21 states. [2018-09-14 17:40:09,011 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2018-09-14 17:40:17,763 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2018-09-14 17:40:19,464 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-09-14 17:40:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:40:22,408 INFO L93 Difference]: Finished difference Result 16025 states and 19696 transitions. [2018-09-14 17:40:22,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-09-14 17:40:22,409 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 455 [2018-09-14 17:40:22,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:40:22,446 INFO L225 Difference]: With dead ends: 16025 [2018-09-14 17:40:22,446 INFO L226 Difference]: Without dead ends: 8561 [2018-09-14 17:40:22,469 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1950 GetRequests, 1856 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2467 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1549, Invalid=6823, Unknown=0, NotChecked=0, Total=8372 [2018-09-14 17:40:22,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8561 states. [2018-09-14 17:40:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8561 to 6693. [2018-09-14 17:40:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6693 states. [2018-09-14 17:40:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 7769 transitions. [2018-09-14 17:40:22,626 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 7769 transitions. Word has length 455 [2018-09-14 17:40:22,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:40:22,627 INFO L480 AbstractCegarLoop]: Abstraction has 6693 states and 7769 transitions. [2018-09-14 17:40:22,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-14 17:40:22,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 7769 transitions. [2018-09-14 17:40:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2018-09-14 17:40:22,644 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:40:22,645 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-14 17:40:22,645 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:40:22,645 INFO L82 PathProgramCache]: Analyzing trace with hash -2143547836, now seen corresponding path program 1 times [2018-09-14 17:40:22,646 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:40:22,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:22,646 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-14 17:40:22,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:22,647 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:40:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:23,080 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-14 17:40:23,443 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2018-09-14 17:40:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 299 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:40:24,215 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:24,215 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:40:24,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:24,224 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:24,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:24,716 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:24,839 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-14 17:40:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:25,578 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:25,578 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:40:25,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:25,656 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:25,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 380 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:26,292 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 131 proven. 255 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-14 17:40:27,246 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:40:27,247 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5, 5, 8, 8] total 34 [2018-09-14 17:40:27,247 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:40:27,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-14 17:40:27,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-14 17:40:27,249 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=983, Unknown=0, NotChecked=0, Total=1122 [2018-09-14 17:40:27,249 INFO L87 Difference]: Start difference. First operand 6693 states and 7769 transitions. Second operand 21 states. [2018-09-14 17:40:37,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:40:37,420 INFO L93 Difference]: Finished difference Result 17062 states and 19978 transitions. [2018-09-14 17:40:37,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-14 17:40:37,421 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 518 [2018-09-14 17:40:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:40:37,450 INFO L225 Difference]: With dead ends: 17062 [2018-09-14 17:40:37,450 INFO L226 Difference]: Without dead ends: 10375 [2018-09-14 17:40:37,470 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2149 GetRequests, 2082 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=837, Invalid=3719, Unknown=0, NotChecked=0, Total=4556 [2018-09-14 17:40:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2018-09-14 17:40:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 10009. [2018-09-14 17:40:37,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10009 states. [2018-09-14 17:40:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10009 states to 10009 states and 11089 transitions. [2018-09-14 17:40:37,646 INFO L78 Accepts]: Start accepts. Automaton has 10009 states and 11089 transitions. Word has length 518 [2018-09-14 17:40:37,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:40:37,647 INFO L480 AbstractCegarLoop]: Abstraction has 10009 states and 11089 transitions. [2018-09-14 17:40:37,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-14 17:40:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 10009 states and 11089 transitions. [2018-09-14 17:40:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2018-09-14 17:40:37,660 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:40:37,660 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:40:37,661 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:40:37,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1329608886, now seen corresponding path program 1 times [2018-09-14 17:40:37,661 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:40:37,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:37,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:37,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:37,662 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:40:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 515 proven. 83 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-09-14 17:40:38,228 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:38,228 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:40:38,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:38,236 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:38,382 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 803 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-09-14 17:40:38,603 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 515 proven. 83 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-09-14 17:40:39,021 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:39,021 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:40:39,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:39,037 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:39,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 803 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-09-14 17:40:39,576 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 515 proven. 83 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-09-14 17:40:39,896 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:40:39,896 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-14 17:40:39,896 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:40:39,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-14 17:40:39,898 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-14 17:40:39,898 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:40:39,898 INFO L87 Difference]: Start difference. First operand 10009 states and 11089 transitions. Second operand 7 states. [2018-09-14 17:40:43,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:40:43,087 INFO L93 Difference]: Finished difference Result 29243 states and 36086 transitions. [2018-09-14 17:40:43,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-14 17:40:43,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 577 [2018-09-14 17:40:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:40:43,183 INFO L225 Difference]: With dead ends: 29243 [2018-09-14 17:40:43,183 INFO L226 Difference]: Without dead ends: 19265 [2018-09-14 17:40:43,252 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2324 GetRequests, 2309 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-09-14 17:40:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19265 states. [2018-09-14 17:40:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19265 to 18760. [2018-09-14 17:40:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18760 states. [2018-09-14 17:40:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18760 states to 18760 states and 21010 transitions. [2018-09-14 17:40:43,731 INFO L78 Accepts]: Start accepts. Automaton has 18760 states and 21010 transitions. Word has length 577 [2018-09-14 17:40:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:40:43,732 INFO L480 AbstractCegarLoop]: Abstraction has 18760 states and 21010 transitions. [2018-09-14 17:40:43,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-14 17:40:43,733 INFO L276 IsEmpty]: Start isEmpty. Operand 18760 states and 21010 transitions. [2018-09-14 17:40:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2018-09-14 17:40:43,748 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:40:43,748 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:40:43,749 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:40:43,749 INFO L82 PathProgramCache]: Analyzing trace with hash -43365718, now seen corresponding path program 1 times [2018-09-14 17:40:43,749 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:40:43,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:43,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:43,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:43,750 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:40:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:45,045 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-14 17:40:45,312 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-14 17:40:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 677 proven. 306 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2018-09-14 17:40:46,152 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:46,153 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:40:46,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:46,160 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:46,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-14 17:40:46,700 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-14 17:40:47,498 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:47,498 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:40:47,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:47,513 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:47,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:40:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 602 proven. 10 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-14 17:40:48,363 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:40:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 197 proven. 415 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-14 17:40:49,724 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:40:49,725 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 8, 8] total 28 [2018-09-14 17:40:49,725 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:40:49,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-14 17:40:49,726 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-14 17:40:49,726 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-09-14 17:40:49,727 INFO L87 Difference]: Start difference. First operand 18760 states and 21010 transitions. Second operand 17 states. [2018-09-14 17:40:53,726 WARN L178 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 22 [2018-09-14 17:40:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:40:57,842 INFO L93 Difference]: Finished difference Result 37981 states and 44034 transitions. [2018-09-14 17:40:57,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-14 17:40:57,842 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 618 [2018-09-14 17:40:57,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:40:57,915 INFO L225 Difference]: With dead ends: 37981 [2018-09-14 17:40:57,915 INFO L226 Difference]: Without dead ends: 18532 [2018-09-14 17:40:57,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2555 GetRequests, 2477 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1421 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1093, Invalid=4019, Unknown=0, NotChecked=0, Total=5112 [2018-09-14 17:40:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18532 states. [2018-09-14 17:40:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18532 to 18090. [2018-09-14 17:40:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18090 states. [2018-09-14 17:40:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18090 states to 18090 states and 19944 transitions. [2018-09-14 17:40:58,353 INFO L78 Accepts]: Start accepts. Automaton has 18090 states and 19944 transitions. Word has length 618 [2018-09-14 17:40:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:40:58,354 INFO L480 AbstractCegarLoop]: Abstraction has 18090 states and 19944 transitions. [2018-09-14 17:40:58,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-14 17:40:58,354 INFO L276 IsEmpty]: Start isEmpty. Operand 18090 states and 19944 transitions. [2018-09-14 17:40:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2018-09-14 17:40:58,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:40:58,450 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:40:58,451 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:40:58,451 INFO L82 PathProgramCache]: Analyzing trace with hash 466271528, now seen corresponding path program 1 times [2018-09-14 17:40:58,451 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:40:58,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:58,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:58,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:40:58,452 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:40:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 770 proven. 260 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2018-09-14 17:40:59,617 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:40:59,617 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:40:59,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:40:59,626 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:40:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:40:59,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2018-09-14 17:41:00,378 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 770 proven. 260 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2018-09-14 17:41:00,908 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:00,908 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:41:00,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:00,925 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:01,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2018-09-14 17:41:02,023 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 770 proven. 260 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2018-09-14 17:41:02,605 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:41:02,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-14 17:41:02,606 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:41:02,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-14 17:41:02,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-14 17:41:02,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:41:02,608 INFO L87 Difference]: Start difference. First operand 18090 states and 19944 transitions. Second operand 7 states. [2018-09-14 17:41:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:41:04,612 INFO L93 Difference]: Finished difference Result 37917 states and 42024 transitions. [2018-09-14 17:41:04,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:41:04,613 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 983 [2018-09-14 17:41:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:41:04,661 INFO L225 Difference]: With dead ends: 37917 [2018-09-14 17:41:04,661 INFO L226 Difference]: Without dead ends: 19858 [2018-09-14 17:41:04,709 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3948 GetRequests, 3933 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-09-14 17:41:04,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19858 states. [2018-09-14 17:41:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19858 to 19399. [2018-09-14 17:41:04,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19399 states. [2018-09-14 17:41:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19399 states to 19399 states and 21162 transitions. [2018-09-14 17:41:05,018 INFO L78 Accepts]: Start accepts. Automaton has 19399 states and 21162 transitions. Word has length 983 [2018-09-14 17:41:05,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:41:05,019 INFO L480 AbstractCegarLoop]: Abstraction has 19399 states and 21162 transitions. [2018-09-14 17:41:05,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-14 17:41:05,019 INFO L276 IsEmpty]: Start isEmpty. Operand 19399 states and 21162 transitions. [2018-09-14 17:41:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2018-09-14 17:41:05,058 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:41:05,058 INFO L376 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:41:05,059 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:41:05,059 INFO L82 PathProgramCache]: Analyzing trace with hash 864278556, now seen corresponding path program 1 times [2018-09-14 17:41:05,059 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:41:05,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:05,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:05,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:05,060 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:41:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 631 proven. 224 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-09-14 17:41:06,761 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:06,761 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:41:06,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:06,784 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:07,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 2037 proven. 2 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2018-09-14 17:41:07,475 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 631 proven. 224 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-09-14 17:41:08,099 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:08,099 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:41:08,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:08,115 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:08,669 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 2037 proven. 2 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2018-09-14 17:41:09,055 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 631 proven. 224 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-09-14 17:41:09,685 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:41:09,686 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 11 [2018-09-14 17:41:09,686 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:41:09,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-14 17:41:09,687 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-14 17:41:09,688 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:41:09,688 INFO L87 Difference]: Start difference. First operand 19399 states and 21162 transitions. Second operand 10 states. [2018-09-14 17:41:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:41:12,916 INFO L93 Difference]: Finished difference Result 40165 states and 44362 transitions. [2018-09-14 17:41:12,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-14 17:41:12,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1060 [2018-09-14 17:41:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:41:12,950 INFO L225 Difference]: With dead ends: 40165 [2018-09-14 17:41:12,951 INFO L226 Difference]: Without dead ends: 20797 [2018-09-14 17:41:12,989 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4272 GetRequests, 4246 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2018-09-14 17:41:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2018-09-14 17:41:13,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 20433. [2018-09-14 17:41:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20433 states. [2018-09-14 17:41:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20433 states to 20433 states and 21973 transitions. [2018-09-14 17:41:13,278 INFO L78 Accepts]: Start accepts. Automaton has 20433 states and 21973 transitions. Word has length 1060 [2018-09-14 17:41:13,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:41:13,279 INFO L480 AbstractCegarLoop]: Abstraction has 20433 states and 21973 transitions. [2018-09-14 17:41:13,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-14 17:41:13,279 INFO L276 IsEmpty]: Start isEmpty. Operand 20433 states and 21973 transitions. [2018-09-14 17:41:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2018-09-14 17:41:13,319 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:41:13,320 INFO L376 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:41:13,320 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:41:13,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1509170803, now seen corresponding path program 1 times [2018-09-14 17:41:13,320 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:41:13,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:13,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:13,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:13,322 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:41:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:14,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 1691 proven. 166 refuted. 0 times theorem prover too weak. 2009 trivial. 0 not checked. [2018-09-14 17:41:14,927 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:14,927 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:41:14,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:14,936 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:15,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:15,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 2286 proven. 6 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2018-09-14 17:41:15,880 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 1691 proven. 339 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2018-09-14 17:41:17,184 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:17,184 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:41:17,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:17,207 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:17,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 2286 proven. 6 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2018-09-14 17:41:18,451 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 1691 proven. 339 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2018-09-14 17:41:19,726 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:41:19,727 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 8] total 15 [2018-09-14 17:41:19,728 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:41:19,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:41:19,729 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:41:19,729 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-09-14 17:41:19,730 INFO L87 Difference]: Start difference. First operand 20433 states and 21973 transitions. Second operand 9 states. [2018-09-14 17:41:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:41:22,613 INFO L93 Difference]: Finished difference Result 45246 states and 48716 transitions. [2018-09-14 17:41:22,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-14 17:41:22,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1160 [2018-09-14 17:41:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:41:22,656 INFO L225 Difference]: With dead ends: 45246 [2018-09-14 17:41:22,656 INFO L226 Difference]: Without dead ends: 24844 [2018-09-14 17:41:22,686 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4656 GetRequests, 4636 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-09-14 17:41:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24844 states. [2018-09-14 17:41:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24844 to 24364. [2018-09-14 17:41:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24364 states. [2018-09-14 17:41:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 26217 transitions. [2018-09-14 17:41:23,014 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 26217 transitions. Word has length 1160 [2018-09-14 17:41:23,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:41:23,015 INFO L480 AbstractCegarLoop]: Abstraction has 24364 states and 26217 transitions. [2018-09-14 17:41:23,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:41:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 26217 transitions. [2018-09-14 17:41:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1423 [2018-09-14 17:41:23,034 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:41:23,035 INFO L376 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:41:23,035 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:41:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1958798091, now seen corresponding path program 1 times [2018-09-14 17:41:23,036 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:41:23,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:23,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:23,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:23,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:41:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:24,342 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-14 17:41:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1225 proven. 925 refuted. 0 times theorem prover too weak. 3843 trivial. 0 not checked. [2018-09-14 17:41:26,724 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:26,724 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:41:26,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:26,732 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:27,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2018-09-14 17:41:28,084 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:28,274 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-14 17:41:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2018-09-14 17:41:29,776 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:29,776 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:41:29,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:29,793 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:30,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1210 proven. 60 refuted. 0 times theorem prover too weak. 4723 trivial. 0 not checked. [2018-09-14 17:41:31,469 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2018-09-14 17:41:34,701 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:41:34,704 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 6, 5] total 24 [2018-09-14 17:41:34,704 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:41:34,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-14 17:41:34,706 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-14 17:41:34,706 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2018-09-14 17:41:34,707 INFO L87 Difference]: Start difference. First operand 24364 states and 26217 transitions. Second operand 17 states. [2018-09-14 17:41:35,184 WARN L178 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-09-14 17:41:42,839 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-09-14 17:41:43,097 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2018-09-14 17:41:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:41:44,627 INFO L93 Difference]: Finished difference Result 49151 states and 52913 transitions. [2018-09-14 17:41:44,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-09-14 17:41:44,628 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1422 [2018-09-14 17:41:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:41:44,681 INFO L225 Difference]: With dead ends: 49151 [2018-09-14 17:41:44,681 INFO L226 Difference]: Without dead ends: 24818 [2018-09-14 17:41:44,713 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5772 GetRequests, 5706 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=740, Invalid=3420, Unknown=0, NotChecked=0, Total=4160 [2018-09-14 17:41:44,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24818 states. [2018-09-14 17:41:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24818 to 24388. [2018-09-14 17:41:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24388 states. [2018-09-14 17:41:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24388 states to 24388 states and 26139 transitions. [2018-09-14 17:41:45,010 INFO L78 Accepts]: Start accepts. Automaton has 24388 states and 26139 transitions. Word has length 1422 [2018-09-14 17:41:45,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:41:45,011 INFO L480 AbstractCegarLoop]: Abstraction has 24388 states and 26139 transitions. [2018-09-14 17:41:45,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-14 17:41:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 24388 states and 26139 transitions. [2018-09-14 17:41:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1896 [2018-09-14 17:41:45,062 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:41:45,063 INFO L376 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:41:45,063 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:41:45,064 INFO L82 PathProgramCache]: Analyzing trace with hash -979324495, now seen corresponding path program 1 times [2018-09-14 17:41:45,064 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:41:45,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:45,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:45,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:41:45,065 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:41:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:46,070 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-14 17:41:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 1973 proven. 533 refuted. 0 times theorem prover too weak. 7884 trivial. 0 not checked. [2018-09-14 17:41:48,201 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:48,201 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:41:48,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:48,209 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:48,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 4406 proven. 2 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2018-09-14 17:41:50,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 1994 proven. 260 refuted. 0 times theorem prover too weak. 8136 trivial. 0 not checked. [2018-09-14 17:41:52,920 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:41:52,920 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:41:52,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:41:52,939 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:41:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:41:53,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:41:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 4406 proven. 2 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2018-09-14 17:41:55,178 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:41:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 1994 proven. 260 refuted. 0 times theorem prover too weak. 8136 trivial. 0 not checked. [2018-09-14 17:41:57,156 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:41:57,157 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 12 [2018-09-14 17:41:57,157 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:41:57,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-14 17:41:57,160 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-14 17:41:57,160 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:41:57,160 INFO L87 Difference]: Start difference. First operand 24388 states and 26139 transitions. Second operand 11 states. [2018-09-14 17:42:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:42:00,915 INFO L93 Difference]: Finished difference Result 49079 states and 52751 transitions. [2018-09-14 17:42:00,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-14 17:42:00,916 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1895 [2018-09-14 17:42:00,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:42:00,924 INFO L225 Difference]: With dead ends: 49079 [2018-09-14 17:42:00,924 INFO L226 Difference]: Without dead ends: 4970 [2018-09-14 17:42:00,968 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7622 GetRequests, 7587 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=266, Invalid=726, Unknown=0, NotChecked=0, Total=992 [2018-09-14 17:42:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4970 states. [2018-09-14 17:42:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4970 to 4453. [2018-09-14 17:42:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4453 states. [2018-09-14 17:42:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 4594 transitions. [2018-09-14 17:42:01,019 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 4594 transitions. Word has length 1895 [2018-09-14 17:42:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:42:01,020 INFO L480 AbstractCegarLoop]: Abstraction has 4453 states and 4594 transitions. [2018-09-14 17:42:01,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-14 17:42:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 4594 transitions. [2018-09-14 17:42:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1972 [2018-09-14 17:42:01,047 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:42:01,048 INFO L376 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-09-14 17:42:01,048 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:42:01,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1907790058, now seen corresponding path program 1 times [2018-09-14 17:42:01,049 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:42:01,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:01,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:01,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:01,050 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:42:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11790 backedges. 1635 proven. 1439 refuted. 0 times theorem prover too weak. 8716 trivial. 0 not checked. [2018-09-14 17:42:05,015 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:42:05,015 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:42:05,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:05,024 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:42:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:05,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:42:27,311 WARN L178 SmtUtils]: Spent 12.67 s on a formula simplification. DAG size of input: 113 DAG size of output: 47 [2018-09-14 17:42:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11790 backedges. 5201 proven. 150 refuted. 0 times theorem prover too weak. 6439 trivial. 0 not checked. [2018-09-14 17:42:31,736 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:42:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11790 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 11268 trivial. 0 not checked. [2018-09-14 17:42:33,353 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:42:33,354 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [16, 11] total 25 [2018-09-14 17:42:33,354 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:42:33,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:42:33,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:42:33,356 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=498, Unknown=5, NotChecked=0, Total=600 [2018-09-14 17:42:33,356 INFO L87 Difference]: Start difference. First operand 4453 states and 4594 transitions. Second operand 3 states. [2018-09-14 17:42:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:42:33,924 INFO L93 Difference]: Finished difference Result 8381 states and 8659 transitions. [2018-09-14 17:42:33,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:42:33,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1971 [2018-09-14 17:42:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:42:33,926 INFO L225 Difference]: With dead ends: 8381 [2018-09-14 17:42:33,926 INFO L226 Difference]: Without dead ends: 0 [2018-09-14 17:42:33,934 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3959 GetRequests, 3933 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=97, Invalid=498, Unknown=5, NotChecked=0, Total=600 [2018-09-14 17:42:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-14 17:42:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-14 17:42:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-14 17:42:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-14 17:42:33,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1971 [2018-09-14 17:42:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:42:33,935 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-14 17:42:33,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:42:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-14 17:42:33,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-14 17:42:33,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-14 17:42:34,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:34,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:35,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:35,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:35,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:35,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,142 WARN L178 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 689 DAG size of output: 537 [2018-09-14 17:42:36,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,392 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:36,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:42:37,611 WARN L178 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 689 DAG size of output: 537 [2018-09-14 17:42:40,125 WARN L178 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 339 DAG size of output: 93 [2018-09-14 17:42:45,124 WARN L178 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 535 DAG size of output: 99 [2018-09-14 17:42:50,099 WARN L178 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 535 DAG size of output: 99 [2018-09-14 17:42:50,102 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2018-09-14 17:42:50,103 INFO L426 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-09-14 17:42:50,104 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-09-14 17:42:50,105 INFO L426 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-09-14 17:42:50,106 INFO L426 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-09-14 17:42:50,107 INFO L426 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,108 INFO L426 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,109 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,110 INFO L426 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L422 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse22 (+ |old(~a12~0)| 43))) (let ((.cse10 (= 10 ~a21~0)) (.cse18 (= 10 |old(~a21~0)|)) (.cse24 (= 1 |old(~a24~0)|)) (.cse1 (<= .cse22 0)) (.cse2 (= 5 |old(~a15~0)|)) (.cse13 (= 7 |old(~a21~0)|)) (.cse8 (= ~a12~0 |old(~a12~0)|)) (.cse16 (= ~a21~0 |old(~a21~0)|)) (.cse17 (= |old(~a15~0)| ~a15~0)) (.cse9 (= 1 ~a24~0)) (.cse5 (= 8 |old(~a15~0)|))) (let ((.cse6 (not .cse5)) (.cse12 (< 0 (+ |old(~a12~0)| 49))) (.cse7 (< 6 |old(~a21~0)|)) (.cse20 (not (= 8 |old(~a21~0)|))) (.cse21 (= 6 |old(~a21~0)|)) (.cse0 (and .cse8 .cse16 .cse17 .cse9)) (.cse14 (and .cse24 .cse1 .cse2 .cse13)) (.cse4 (= 6 |old(~a15~0)|)) (.cse19 (< 73282 |old(~a12~0)|)) (.cse15 (< 7 |old(~a15~0)|)) (.cse11 (not .cse18)) (.cse23 (and .cse8 .cse17 .cse9 .cse10)) (.cse3 (not .cse24))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse3 .cse6 .cse0 .cse7) (or (and .cse8 .cse9 (= 8 ~a15~0) .cse10) (or .cse11 .cse3 .cse6)) (or (or (or (or .cse12 (= 9 |old(~a15~0)|)) (not .cse13) .cse3) .cse2) .cse0) (or .cse14 .cse12 .cse4 .cse15 (and .cse8 (= ~a24~0 |old(~a24~0)|) .cse16 .cse17) (< 7 |old(~a21~0)|)) (or .cse1 (< 76 |old(~a12~0)|) .cse3 .cse18 .cse0) (or .cse0 .cse3 .cse19 .cse7 .cse15) (or .cse0 .cse3 (< 0 (+ |old(~a12~0)| 526767)) .cse5 .cse20) (or .cse21 .cse0 .cse2 .cse3 .cse15 .cse18) (or (or .cse11 .cse3 .cse4 (< 0 .cse22)) .cse23) (or .cse1 .cse3 .cse19 .cse0 .cse20) (or (not .cse21) .cse3 (not .cse2) .cse0) (or .cse0 .cse14 .cse3 .cse4 .cse19 .cse15) (or .cse11 .cse1 .cse23 .cse3 (< 11 |old(~a12~0)|)))))) [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,111 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-09-14 17:42:50,112 INFO L426 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-09-14 17:42:50,113 INFO L426 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-09-14 17:42:50,114 INFO L426 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-09-14 17:42:50,115 INFO L426 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-09-14 17:42:50,116 INFO L426 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-09-14 17:42:50,117 INFO L426 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-09-14 17:42:50,118 INFO L426 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,119 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-09-14 17:42:50,120 INFO L426 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-09-14 17:42:50,121 INFO L426 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-14 17:42:50,122 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-09-14 17:42:50,123 INFO L426 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-09-14 17:42:50,124 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-14 17:42:50,124 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-14 17:42:50,124 INFO L426 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-09-14 17:42:50,124 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-14 17:42:50,124 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a15~0 9)) (= 7 ~a21~0) (= 1 ~a24~0) (not (= 7 ~a15~0)) (<= (+ ~a12~0 49) 0) (not (= 5 ~a15~0)) (not (= ~a15~0 6))) [2018-09-14 17:42:50,124 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-14 17:42:50,124 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-14 17:42:50,124 INFO L422 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (= 5 |old(~a15~0)|) (< 0 (+ |old(~a12~0)| 49)) (= 6 |old(~a15~0)|) (= 9 |old(~a15~0)|) (not (= 7 |old(~a21~0)|)) (= 7 |old(~a15~0)|) (not (= 1 |old(~a24~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0) (= 1 ~a24~0))) [2018-09-14 17:42:50,125 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-09-14 17:42:50,125 INFO L422 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse16 (= 5 ~a15~0)) (.cse15 (= 6 ~a21~0)) (.cse1 (not (= ~a15~0 6)))) (let ((.cse9 (and (not (= ~a15~0 9)) .cse1)) (.cse4 (= 10 ~a21~0)) (.cse14 (not .cse15)) (.cse21 (= 7 ~a21~0)) (.cse8 (< 0 (+ ~a12~0 43))) (.cse6 (not .cse16)) (.cse5 (= 1 ~a24~0))) (let ((.cse12 (= ~a21~0 10)) (.cse10 (or (not .cse21) .cse8 .cse6 (not .cse5))) (.cse11 (<= ~a15~0 7)) (.cse18 (and .cse5 (<= ~a21~0 6))) (.cse13 (= ~a15~0 |old(~a15~0)|)) (.cse7 (not (= ~a15~0 8))) (.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse3 (<= ~a12~0 11)) (.cse17 (<= ~a12~0 73282)) (.cse19 (= ~a21~0 8)) (.cse20 (and .cse6 (and (and .cse9 (not .cse4) .cse5) .cse14))) (.cse2 (= 8 |old(~a15~0)|))) (or (and (and .cse0 .cse1) .cse2 .cse3 .cse4) (and (and .cse5 .cse6 .cse1) .cse7 .cse2 .cse8) (and (and .cse9 (<= ~a21~0 7) .cse10 (<= (+ ~a12~0 49) 0)) .cse11 .cse2) (not (= 7 |old(~a21~0)|)) (< 0 (+ |old(~a12~0)| 49)) (and (and .cse5 .cse12) .cse2 .cse13) (and .cse11 (and .cse5 .cse6 (not .cse12) .cse14) .cse2) (and .cse15 .cse0 .cse16) (= 9 |old(~a15~0)|) (not (= 1 |old(~a24~0)|)) (= 5 |old(~a15~0)|) (= 7 |old(~a15~0)|) (and .cse17 (and .cse9 .cse5 .cse10) .cse11 .cse2) (and .cse17 .cse18 .cse11 .cse2) (and .cse18 .cse2 .cse8 .cse13) (and .cse5 .cse19 (<= (+ ~a12~0 526767) 0) .cse7 .cse2) (and (and .cse0 .cse3) .cse2 .cse8) (and .cse17 .cse20 .cse19 .cse2 .cse8) (and (and (<= ~a12~0 76) .cse20) .cse2 .cse8) (= 6 |old(~a15~0)|) (and (= |old(~a15~0)| ~a15~0) (and (= ~a12~0 |old(~a12~0)|) .cse5 .cse21)))))) [2018-09-14 17:42:50,125 INFO L426 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-09-14 17:42:50,125 INFO L426 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-09-14 17:42:50,125 INFO L426 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-09-14 17:42:50,126 INFO L422 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse16 (= 5 ~a15~0)) (.cse15 (= 6 ~a21~0)) (.cse1 (not (= ~a15~0 6)))) (let ((.cse9 (and (not (= ~a15~0 9)) .cse1)) (.cse4 (= 10 ~a21~0)) (.cse14 (not .cse15)) (.cse21 (= 7 ~a21~0)) (.cse8 (< 0 (+ ~a12~0 43))) (.cse6 (not .cse16)) (.cse5 (= 1 ~a24~0))) (let ((.cse12 (= ~a21~0 10)) (.cse10 (or (not .cse21) .cse8 .cse6 (not .cse5))) (.cse11 (<= ~a15~0 7)) (.cse18 (and .cse5 (<= ~a21~0 6))) (.cse13 (= ~a15~0 |old(~a15~0)|)) (.cse7 (not (= ~a15~0 8))) (.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse3 (<= ~a12~0 11)) (.cse17 (<= ~a12~0 73282)) (.cse19 (= ~a21~0 8)) (.cse20 (and .cse6 (and (and .cse9 (not .cse4) .cse5) .cse14))) (.cse2 (= 8 |old(~a15~0)|))) (or (and (and .cse0 .cse1) .cse2 .cse3 .cse4) (and (and .cse5 .cse6 .cse1) .cse7 .cse2 .cse8) (and (and .cse9 (<= ~a21~0 7) .cse10 (<= (+ ~a12~0 49) 0)) .cse11 .cse2) (not (= 7 |old(~a21~0)|)) (< 0 (+ |old(~a12~0)| 49)) (and (and .cse5 .cse12) .cse2 .cse13) (and .cse11 (and .cse5 .cse6 (not .cse12) .cse14) .cse2) (and .cse15 .cse0 .cse16) (= 9 |old(~a15~0)|) (not (= 1 |old(~a24~0)|)) (= 5 |old(~a15~0)|) (= 7 |old(~a15~0)|) (and .cse17 (and .cse9 .cse5 .cse10) .cse11 .cse2) (and .cse17 .cse18 .cse11 .cse2) (and .cse18 .cse2 .cse8 .cse13) (and .cse5 .cse19 (<= (+ ~a12~0 526767) 0) .cse7 .cse2) (and (and .cse0 .cse3) .cse2 .cse8) (and .cse17 .cse20 .cse19 .cse2 .cse8) (and (and (<= ~a12~0 76) .cse20) .cse2 .cse8) (= 6 |old(~a15~0)|) (and (= |old(~a15~0)| ~a15~0) (and (= ~a12~0 |old(~a12~0)|) .cse5 .cse21)))))) [2018-09-14 17:42:50,126 INFO L426 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-09-14 17:42:50,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:42:50 BoogieIcfgContainer [2018-09-14 17:42:50,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:42:50,176 INFO L168 Benchmark]: Toolchain (without parser) took 211583.60 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-14 17:42:50,178 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:42:50,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:42:50,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-14 17:42:50,182 INFO L168 Benchmark]: Boogie Preprocessor took 323.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -852.5 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:42:50,183 INFO L168 Benchmark]: RCFGBuilder took 3736.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 129.2 MB). Peak memory consumption was 129.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:42:50,183 INFO L168 Benchmark]: TraceAbstraction took 206558.62 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-14 17:42:50,188 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 125.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 323.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -852.5 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3736.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 129.2 MB). Peak memory consumption was 129.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206558.62 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a24 == \old(a24) && !(a15 == 6)) && 8 == \old(a15)) && a12 <= 11) && 10 == a21) || (((((1 == a24 && !(5 == a15)) && !(a15 == 6)) && !(a15 == 8)) && 8 == \old(a15)) && 0 < a12 + 43)) || ((((((!(a15 == 9) && !(a15 == 6)) && a21 <= 7) && (((!(7 == a21) || 0 < a12 + 43) || !(5 == a15)) || !(1 == a24))) && a12 + 49 <= 0) && a15 <= 7) && 8 == \old(a15))) || !(7 == \old(a21))) || 0 < \old(a12) + 49) || (((1 == a24 && a21 == 10) && 8 == \old(a15)) && a15 == \old(a15))) || ((a15 <= 7 && ((1 == a24 && !(5 == a15)) && !(a21 == 10)) && !(6 == a21)) && 8 == \old(a15))) || ((6 == a21 && a24 == \old(a24)) && 5 == a15)) || 9 == \old(a15)) || !(1 == \old(a24))) || 5 == \old(a15)) || 7 == \old(a15)) || (((a12 <= 73282 && ((!(a15 == 9) && !(a15 == 6)) && 1 == a24) && (((!(7 == a21) || 0 < a12 + 43) || !(5 == a15)) || !(1 == a24))) && a15 <= 7) && 8 == \old(a15))) || (((a12 <= 73282 && 1 == a24 && a21 <= 6) && a15 <= 7) && 8 == \old(a15))) || ((((1 == a24 && a21 <= 6) && 8 == \old(a15)) && 0 < a12 + 43) && a15 == \old(a15))) || ((((1 == a24 && a21 == 8) && a12 + 526767 <= 0) && !(a15 == 8)) && 8 == \old(a15))) || (((a24 == \old(a24) && a12 <= 11) && 8 == \old(a15)) && 0 < a12 + 43)) || ((((a12 <= 73282 && !(5 == a15) && (((!(a15 == 9) && !(a15 == 6)) && !(10 == a21)) && 1 == a24) && !(6 == a21)) && a21 == 8) && 8 == \old(a15)) && 0 < a12 + 43)) || (((a12 <= 76 && !(5 == a15) && (((!(a15 == 9) && !(a15 == 6)) && !(10 == a21)) && 1 == a24) && !(6 == a21)) && 8 == \old(a15)) && 0 < a12 + 43)) || 6 == \old(a15)) || (\old(a15) == a15 && (a12 == \old(a12) && 1 == a24) && 7 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 206.4s OverallTime, 17 OverallIterations, 16 TraceHistogramMax, 84.9s AutomataDifference, 0.0s DeadEndRemovalTime, 16.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1775 SDtfs, 39761 SDslu, 4259 SDs, 0 SdLazy, 52253 SolverSat, 7417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43712 GetRequests, 43127 SyntacticMatches, 73 SemanticMatches, 512 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7406 ImplicationChecksByTransitivity, 51.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24388occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 6727 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 631 PreInvPairs, 817 NumberOfFragments, 1285 HoareAnnotationTreeSize, 631 FomulaSimplifications, 1513603 FormulaSimplificationTreeSizeReduction, 3.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 495051 FormulaSimplificationTreeSizeReductionInter, 12.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 8.2s SatisfiabilityAnalysisTime, 80.7s InterpolantComputationTime, 33691 NumberOfCodeBlocks, 33691 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 55164 ConstructedInterpolants, 47 QuantifiedInterpolants, 151405112 SizeOfPredicates, 69 NumberOfNonLiveVariables, 30731 ConjunctsInSsa, 368 ConjunctsInUnsatCore, 69 InterpolantComputations, 5 PerfectInterpolantSequences, 182799/191938 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-42-50-204.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-42-50-204.csv Received shutdown request...