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/Problem15_label19_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:55:00,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:55:00,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:55:00,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:55:00,607 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:55:00,608 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:55:00,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:55:00,612 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:55:00,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:55:00,615 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:55:00,616 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:55:00,616 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:55:00,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:55:00,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:55:00,619 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:55:00,620 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:55:00,621 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:55:00,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:55:00,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:55:00,631 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:55:00,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:55:00,637 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:55:00,643 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:55:00,654 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:55:00,655 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:55:00,656 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:55:00,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:55:00,659 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 [2018-09-18 11:55:00,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:55:00,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:55:00,688 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:55:00,688 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:55:00,688 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:55:00,689 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:55:00,689 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:55:00,689 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:55:00,689 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:55:00,689 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:55:00,690 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:55:00,690 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:55:00,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:55:00,691 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:55:00,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:55:00,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:55:00,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:55:00,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:55:00,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:55:00,692 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:55:00,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:55:00,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:55:00,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:55:00,693 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:55:00,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:55:00,693 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:55:00,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:55:00,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:55:00,694 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:55:00,694 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:55:00,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:55:00,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:55:00,694 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:55:00,695 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:55:00,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:55:00,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:55:00,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:55:00,786 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:55:00,787 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:55:00,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label19_true-unreach-call.c [2018-09-18 11:55:01,137 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/598d6b490/9a84e19c3efe4bd28a847b751d9650ee/FLAG55818944e [2018-09-18 11:55:01,568 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:55:01,569 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label19_true-unreach-call.c [2018-09-18 11:55:01,596 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/598d6b490/9a84e19c3efe4bd28a847b751d9650ee/FLAG55818944e [2018-09-18 11:55:01,619 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/598d6b490/9a84e19c3efe4bd28a847b751d9650ee [2018-09-18 11:55:01,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:55:01,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:55:01,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:55:01,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:55:01,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:55:01,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:55:01" (1/1) ... [2018-09-18 11:55:01,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41037b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:01, skipping insertion in model container [2018-09-18 11:55:01,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:55:01" (1/1) ... [2018-09-18 11:55:01,669 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:55:02,459 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:55:02,482 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:55:02,764 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:55:02,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02 WrapperNode [2018-09-18 11:55:02,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:55:02,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:55:02,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:55:02,902 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:55:02,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:02,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:55:03,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:55:03,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:55:03,152 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:55:03,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (1/1) ... [2018-09-18 11:55:03,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:55:03,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:55:03,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:55:03,778 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:55:03,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (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 [2018-09-18 11:55:03,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:55:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:55:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:55:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:55:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:55:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:55:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:55:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:55:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:55:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:55:11,750 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:55:11,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:55:11 BoogieIcfgContainer [2018-09-18 11:55:11,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:55:11,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:55:11,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:55:11,756 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:55:11,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:55:01" (1/3) ... [2018-09-18 11:55:11,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f633cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:55:11, skipping insertion in model container [2018-09-18 11:55:11,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:55:02" (2/3) ... [2018-09-18 11:55:11,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f633cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:55:11, skipping insertion in model container [2018-09-18 11:55:11,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:55:11" (3/3) ... [2018-09-18 11:55:11,762 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label19_true-unreach-call.c [2018-09-18 11:55:11,772 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:55:11,784 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:55:11,840 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:55:11,841 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:55:11,841 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:55:11,841 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:55:11,842 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:55:11,842 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:55:11,842 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:55:11,842 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:55:11,842 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:55:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-18 11:55:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-18 11:55:11,889 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:11,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:55:11,893 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:11,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1227807684, now seen corresponding path program 1 times [2018-09-18 11:55:11,902 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:11,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:11,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:11,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:11,958 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:12,465 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-18 11:55:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:12,489 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:55:12,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:55:12,490 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:12,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:55:12,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:55:12,514 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:55:12,517 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-09-18 11:55:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:20,198 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-09-18 11:55:20,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:55:20,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-09-18 11:55:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:20,228 INFO L225 Difference]: With dead ends: 1558 [2018-09-18 11:55:20,228 INFO L226 Difference]: Without dead ends: 1114 [2018-09-18 11:55:20,239 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:55:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-09-18 11:55:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-09-18 11:55:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-09-18 11:55:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-09-18 11:55:20,351 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 52 [2018-09-18 11:55:20,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:20,352 INFO L480 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-09-18 11:55:20,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:55:20,352 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-09-18 11:55:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-18 11:55:20,360 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:20,360 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, 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] [2018-09-18 11:55:20,360 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:20,361 INFO L82 PathProgramCache]: Analyzing trace with hash -773066201, now seen corresponding path program 1 times [2018-09-18 11:55:20,361 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:20,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:20,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:20,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:20,362 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:20,680 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:55:20,681 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:55:20,681 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:20,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:55:20,683 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:55:20,683 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:55:20,683 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 5 states. [2018-09-18 11:55:34,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:34,096 INFO L93 Difference]: Finished difference Result 2506 states and 4577 transitions. [2018-09-18 11:55:34,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:55:34,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-09-18 11:55:34,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:34,113 INFO L225 Difference]: With dead ends: 2506 [2018-09-18 11:55:34,114 INFO L226 Difference]: Without dead ends: 1753 [2018-09-18 11:55:34,119 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:55:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2018-09-18 11:55:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1733. [2018-09-18 11:55:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-09-18 11:55:34,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 3007 transitions. [2018-09-18 11:55:34,214 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 3007 transitions. Word has length 122 [2018-09-18 11:55:34,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:34,215 INFO L480 AbstractCegarLoop]: Abstraction has 1733 states and 3007 transitions. [2018-09-18 11:55:34,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:55:34,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 3007 transitions. [2018-09-18 11:55:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-18 11:55:34,222 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:34,222 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, 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] [2018-09-18 11:55:34,223 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:34,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1495807734, now seen corresponding path program 1 times [2018-09-18 11:55:34,223 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:34,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:34,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:34,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:34,225 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:34,431 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:55:34,431 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:55:34,431 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:34,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:55:34,432 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:55:34,432 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:55:34,433 INFO L87 Difference]: Start difference. First operand 1733 states and 3007 transitions. Second operand 6 states. [2018-09-18 11:55:50,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:50,905 INFO L93 Difference]: Finished difference Result 5661 states and 10509 transitions. [2018-09-18 11:55:50,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 11:55:50,906 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-09-18 11:55:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:50,942 INFO L225 Difference]: With dead ends: 5661 [2018-09-18 11:55:50,942 INFO L226 Difference]: Without dead ends: 3934 [2018-09-18 11:55:50,966 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:55:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2018-09-18 11:55:51,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3824. [2018-09-18 11:55:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3824 states. [2018-09-18 11:55:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5808 transitions. [2018-09-18 11:55:51,127 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5808 transitions. Word has length 123 [2018-09-18 11:55:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:51,128 INFO L480 AbstractCegarLoop]: Abstraction has 3824 states and 5808 transitions. [2018-09-18 11:55:51,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:55:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5808 transitions. [2018-09-18 11:55:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-18 11:55:51,130 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:51,131 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, 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] [2018-09-18 11:55:51,131 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1360707218, now seen corresponding path program 1 times [2018-09-18 11:55:51,131 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:51,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:51,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:51,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:51,133 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:51,415 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:55:51,415 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:55:51,415 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:51,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:55:51,416 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:55:51,416 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:55:51,417 INFO L87 Difference]: Start difference. First operand 3824 states and 5808 transitions. Second operand 6 states. [2018-09-18 11:55:58,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:58,448 INFO L93 Difference]: Finished difference Result 10749 states and 17634 transitions. [2018-09-18 11:55:58,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:55:58,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-09-18 11:55:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:58,498 INFO L225 Difference]: With dead ends: 10749 [2018-09-18 11:55:58,498 INFO L226 Difference]: Without dead ends: 7240 [2018-09-18 11:55:58,535 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:55:58,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2018-09-18 11:55:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7187. [2018-09-18 11:55:58,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7187 states. [2018-09-18 11:55:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7187 states to 7187 states and 10426 transitions. [2018-09-18 11:55:58,749 INFO L78 Accepts]: Start accepts. Automaton has 7187 states and 10426 transitions. Word has length 127 [2018-09-18 11:55:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:58,749 INFO L480 AbstractCegarLoop]: Abstraction has 7187 states and 10426 transitions. [2018-09-18 11:55:58,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:55:58,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7187 states and 10426 transitions. [2018-09-18 11:55:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-09-18 11:55:58,754 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:58,754 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, 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] [2018-09-18 11:55:58,754 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:58,755 INFO L82 PathProgramCache]: Analyzing trace with hash -507052443, now seen corresponding path program 1 times [2018-09-18 11:55:58,755 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:58,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:58,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:58,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:58,757 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:59,029 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:59,029 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 [2018-09-18 11:55:59,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:59,039 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:59,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:03,343 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:03,665 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-18 11:56:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:03,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:56:03,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 11 [2018-09-18 11:56:03,872 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:56:03,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:56:03,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:56:03,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-09-18 11:56:03,875 INFO L87 Difference]: Start difference. First operand 7187 states and 10426 transitions. Second operand 3 states. [2018-09-18 11:56:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:08,070 INFO L93 Difference]: Finished difference Result 17971 states and 27267 transitions. [2018-09-18 11:56:08,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:56:08,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2018-09-18 11:56:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:08,151 INFO L225 Difference]: With dead ends: 17971 [2018-09-18 11:56:08,151 INFO L226 Difference]: Without dead ends: 11099 [2018-09-18 11:56:08,235 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 292 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-09-18 11:56:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2018-09-18 11:56:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 11095. [2018-09-18 11:56:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11095 states. [2018-09-18 11:56:08,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11095 states to 11095 states and 15397 transitions. [2018-09-18 11:56:08,562 INFO L78 Accepts]: Start accepts. Automaton has 11095 states and 15397 transitions. Word has length 148 [2018-09-18 11:56:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:08,562 INFO L480 AbstractCegarLoop]: Abstraction has 11095 states and 15397 transitions. [2018-09-18 11:56:08,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:56:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11095 states and 15397 transitions. [2018-09-18 11:56:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-18 11:56:08,571 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:08,571 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:56:08,572 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:08,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1797896167, now seen corresponding path program 1 times [2018-09-18 11:56:08,572 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:08,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:08,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:08,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:08,573 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:09,211 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-09-18 11:56:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:09,728 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:09,728 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:56:09,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:09,745 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:09,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:10,123 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:11,307 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:56:11,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-09-18 11:56:11,308 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:56:11,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:56:11,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:56:11,309 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:56:11,309 INFO L87 Difference]: Start difference. First operand 11095 states and 15397 transitions. Second operand 5 states. [2018-09-18 11:56:23,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:23,327 INFO L93 Difference]: Finished difference Result 24344 states and 35157 transitions. [2018-09-18 11:56:23,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:56:23,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 220 [2018-09-18 11:56:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:23,410 INFO L225 Difference]: With dead ends: 24344 [2018-09-18 11:56:23,411 INFO L226 Difference]: Without dead ends: 13563 [2018-09-18 11:56:23,466 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 436 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:56:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13563 states. [2018-09-18 11:56:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13563 to 13339. [2018-09-18 11:56:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13339 states. [2018-09-18 11:56:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13339 states to 13339 states and 18507 transitions. [2018-09-18 11:56:23,975 INFO L78 Accepts]: Start accepts. Automaton has 13339 states and 18507 transitions. Word has length 220 [2018-09-18 11:56:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:23,975 INFO L480 AbstractCegarLoop]: Abstraction has 13339 states and 18507 transitions. [2018-09-18 11:56:23,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:56:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 13339 states and 18507 transitions. [2018-09-18 11:56:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-09-18 11:56:24,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:24,002 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:56:24,003 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:24,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1909686646, now seen corresponding path program 1 times [2018-09-18 11:56:24,003 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:24,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:24,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:24,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:24,004 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 91 proven. 89 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-18 11:56:24,694 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:24,694 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 [2018-09-18 11:56:24,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:24,714 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:24,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:25,046 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-18 11:56:25,046 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-18 11:56:25,427 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:56:25,427 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-18 11:56:25,427 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:56:25,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:56:25,428 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:56:25,428 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:56:25,430 INFO L87 Difference]: Start difference. First operand 13339 states and 18507 transitions. Second operand 5 states. [2018-09-18 11:56:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:32,090 INFO L93 Difference]: Finished difference Result 28547 states and 40888 transitions. [2018-09-18 11:56:32,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:56:32,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2018-09-18 11:56:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:32,141 INFO L225 Difference]: With dead ends: 28547 [2018-09-18 11:56:32,141 INFO L226 Difference]: Without dead ends: 10758 [2018-09-18 11:56:32,376 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 552 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:56:32,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10758 states. [2018-09-18 11:56:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10758 to 8459. [2018-09-18 11:56:32,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8459 states. [2018-09-18 11:56:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8459 states to 8459 states and 10313 transitions. [2018-09-18 11:56:32,604 INFO L78 Accepts]: Start accepts. Automaton has 8459 states and 10313 transitions. Word has length 277 [2018-09-18 11:56:32,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:32,605 INFO L480 AbstractCegarLoop]: Abstraction has 8459 states and 10313 transitions. [2018-09-18 11:56:32,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:56:32,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8459 states and 10313 transitions. [2018-09-18 11:56:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-09-18 11:56:32,612 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:32,612 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:56:32,612 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:32,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2141796424, now seen corresponding path program 1 times [2018-09-18 11:56:32,613 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:32,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:32,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:32,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:32,614 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:33,334 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-09-18 11:56:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:33,658 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:33,658 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 [2018-09-18 11:56:33,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:33,667 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:33,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:40,076 WARN L178 SmtUtils]: Spent 6.11 s on a formula simplification that was a NOOP. DAG size: 38 [2018-09-18 11:56:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:40,233 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:43,832 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:56:43,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-09-18 11:56:43,833 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:56:43,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:56:43,834 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:56:43,834 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2018-09-18 11:56:43,834 INFO L87 Difference]: Start difference. First operand 8459 states and 10313 transitions. Second operand 6 states. [2018-09-18 11:57:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:57:22,258 INFO L93 Difference]: Finished difference Result 21403 states and 27023 transitions. [2018-09-18 11:57:22,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:57:22,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 290 [2018-09-18 11:57:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:57:22,308 INFO L225 Difference]: With dead ends: 21403 [2018-09-18 11:57:22,309 INFO L226 Difference]: Without dead ends: 12940 [2018-09-18 11:57:22,333 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 575 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2018-09-18 11:57:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12940 states. [2018-09-18 11:57:22,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12940 to 11708. [2018-09-18 11:57:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11708 states. [2018-09-18 11:57:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11708 states to 11708 states and 14901 transitions. [2018-09-18 11:57:22,605 INFO L78 Accepts]: Start accepts. Automaton has 11708 states and 14901 transitions. Word has length 290 [2018-09-18 11:57:22,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:57:22,606 INFO L480 AbstractCegarLoop]: Abstraction has 11708 states and 14901 transitions. [2018-09-18 11:57:22,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:57:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 11708 states and 14901 transitions. [2018-09-18 11:57:22,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-09-18 11:57:22,620 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:57:22,621 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:57:22,621 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:57:22,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1530309236, now seen corresponding path program 1 times [2018-09-18 11:57:22,621 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:57:22,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:22,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:22,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:22,623 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:57:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:23,036 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:57:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 85 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:57:23,685 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:57:23,685 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:57:23,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:23,695 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:57:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:23,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:57:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-18 11:57:23,924 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:57:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-18 11:57:24,243 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:57:24,244 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-09-18 11:57:24,244 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:57:24,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:57:24,245 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:57:24,245 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:57:24,245 INFO L87 Difference]: Start difference. First operand 11708 states and 14901 transitions. Second operand 3 states. [2018-09-18 11:57:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:57:27,426 INFO L93 Difference]: Finished difference Result 27661 states and 36371 transitions. [2018-09-18 11:57:27,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:57:27,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 439 [2018-09-18 11:57:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:57:27,490 INFO L225 Difference]: With dead ends: 27661 [2018-09-18 11:57:27,490 INFO L226 Difference]: Without dead ends: 16205 [2018-09-18 11:57:27,542 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 879 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:57:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16205 states. [2018-09-18 11:57:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16205 to 15534. [2018-09-18 11:57:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15534 states. [2018-09-18 11:57:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15534 states to 15534 states and 19320 transitions. [2018-09-18 11:57:27,860 INFO L78 Accepts]: Start accepts. Automaton has 15534 states and 19320 transitions. Word has length 439 [2018-09-18 11:57:27,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:57:27,861 INFO L480 AbstractCegarLoop]: Abstraction has 15534 states and 19320 transitions. [2018-09-18 11:57:27,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:57:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 15534 states and 19320 transitions. [2018-09-18 11:57:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2018-09-18 11:57:27,881 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:57:27,881 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:57:27,882 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:57:27,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1268873910, now seen corresponding path program 1 times [2018-09-18 11:57:27,882 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:57:27,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:27,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:27,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:27,883 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:57:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:28,631 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-18 11:57:28,871 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-18 11:57:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 141 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:57:29,905 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:57:29,905 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 [2018-09-18 11:57:29,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:29,913 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:57:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:30,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:58:56,657 WARN L178 SmtUtils]: Spent 1.36 m on a formula simplification. DAG size of input: 462 DAG size of output: 244 Received shutdown request... [2018-09-18 11:59:13,156 WARN L186 SmtUtils]: Removed 1 from assertion stack [2018-09-18 11:59:13,156 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 11:59:13,357 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:59:13,358 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:59:13,363 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:59:13,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:59:13 BoogieIcfgContainer [2018-09-18 11:59:13,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:59:13,364 INFO L168 Benchmark]: Toolchain (without parser) took 251729.64 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 339.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:59:13,366 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. [2018-09-18 11:59:13,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1261.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:59:13,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 250.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:59:13,368 INFO L168 Benchmark]: Boogie Preprocessor took 625.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 900.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:59:13,369 INFO L168 Benchmark]: RCFGBuilder took 7974.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 297.9 MB). Peak memory consumption was 297.9 MB. Max. memory is 7.1 GB. [2018-09-18 11:59:13,369 INFO L168 Benchmark]: TraceAbstraction took 241610.81 ms. Allocated memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: 593.0 MB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -550.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:59:13,376 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 1261.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 250.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 625.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 900.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7974.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 297.9 MB). Peak memory consumption was 297.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241610.81 ms. Allocated memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: 593.0 MB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -550.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 142). Cancelled while BasicCegarLoop was analyzing trace of length 476 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 257. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 241.5s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 110.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2368 SDtfs, 9867 SDslu, 1651 SDs, 0 SdLazy, 19099 SolverSat, 4414 SolverUnsat, 17 SolverUnknown, 0 SolverNotchecked, 101.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2829 GetRequests, 2746 SyntacticMatches, 13 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15534occurred in iteration=9, 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: 2.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 4968 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 3172 NumberOfCodeBlocks, 3172 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4527 ConstructedInterpolants, 291 QuantifiedInterpolants, 7943809 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2158 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 1279/1704 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label19_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-59-13-397.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label19_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-59-13-397.csv Completed graceful shutdown