java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:43:25,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:43:25,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:43:25,659 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:43:25,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:43:25,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:43:25,662 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:43:25,664 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:43:25,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:43:25,666 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:43:25,667 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:43:25,667 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:43:25,668 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:43:25,669 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:43:25,670 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:43:25,671 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:43:25,672 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:43:25,674 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:43:25,676 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:43:25,677 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:43:25,678 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:43:25,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:43:25,682 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:43:25,682 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:43:25,683 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:43:25,683 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:43:25,684 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:43:25,685 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:43:25,686 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:43:25,687 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:43:25,687 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:43:25,688 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:43:25,689 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:43:25,690 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:43:25,691 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:43:25,691 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:43:25,692 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 [2018-07-24 11:43:25,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:43:25,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:43:25,722 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:43:25,722 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:43:25,722 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:43:25,722 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:43:25,722 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:43:25,723 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:43:25,723 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:43:25,723 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:43:25,723 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:43:25,724 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:43:25,724 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:43:25,725 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:43:25,725 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:43:25,726 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:43:25,726 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:43:25,726 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:43:25,726 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:43:25,726 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:43:25,727 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:43:25,727 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:43:25,727 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:43:25,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:43:25,727 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:43:25,728 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:43:25,728 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:43:25,728 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:43:25,728 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:43:25,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:43:25,730 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:43:25,730 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:43:25,730 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:43:25,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:43:25,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:43:25,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:43:25,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:43:25,819 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:43:25,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c [2018-07-24 11:43:26,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0043abe03/c054f492434a40a2a0183f019f9686f6/FLAG5d4a3813e [2018-07-24 11:43:26,451 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:43:26,452 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c [2018-07-24 11:43:26,472 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0043abe03/c054f492434a40a2a0183f019f9686f6/FLAG5d4a3813e [2018-07-24 11:43:26,491 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0043abe03/c054f492434a40a2a0183f019f9686f6 [2018-07-24 11:43:26,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:43:26,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:43:26,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:43:26,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:43:26,515 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:43:26,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:43:26" (1/1) ... [2018-07-24 11:43:26,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3433fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:26, skipping insertion in model container [2018-07-24 11:43:26,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:43:26" (1/1) ... [2018-07-24 11:43:26,764 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:43:27,083 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:43:27,098 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:43:27,220 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:43:27,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27 WrapperNode [2018-07-24 11:43:27,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:43:27,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:43:27,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:43:27,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:43:27,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:43:27,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:43:27,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:43:27,373 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:43:27,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (1/1) ... [2018-07-24 11:43:27,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:43:27,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:43:27,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:43:27,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:43:27,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (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 [2018-07-24 11:43:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:43:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:43:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:43:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:43:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:43:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:43:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:43:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:43:32,009 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:43:32,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:43:32 BoogieIcfgContainer [2018-07-24 11:43:32,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:43:32,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:43:32,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:43:32,015 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:43:32,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:43:26" (1/3) ... [2018-07-24 11:43:32,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ab0352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:43:32, skipping insertion in model container [2018-07-24 11:43:32,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:43:27" (2/3) ... [2018-07-24 11:43:32,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ab0352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:43:32, skipping insertion in model container [2018-07-24 11:43:32,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:43:32" (3/3) ... [2018-07-24 11:43:32,019 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label24_false-unreach-call.c [2018-07-24 11:43:32,028 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:43:32,037 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:43:32,094 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:43:32,095 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:43:32,095 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:43:32,095 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:43:32,095 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:43:32,096 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:43:32,096 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:43:32,096 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:43:32,096 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:43:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-24 11:43:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 11:43:32,136 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:32,137 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:32,138 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:32,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1460094049, now seen corresponding path program 1 times [2018-07-24 11:43:32,146 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:32,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:32,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:32,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:32,199 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:32,548 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:43:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:43:32,662 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:43:32,663 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:43:32,663 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:32,673 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:43:32,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:43:32,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:43:32,692 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-07-24 11:43:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:34,416 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-07-24 11:43:34,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:43:34,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-07-24 11:43:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:34,437 INFO L225 Difference]: With dead ends: 574 [2018-07-24 11:43:34,437 INFO L226 Difference]: Without dead ends: 356 [2018-07-24 11:43:34,445 INFO L573 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 [2018-07-24 11:43:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-07-24 11:43:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-07-24 11:43:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-24 11:43:34,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-07-24 11:43:34,533 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 21 [2018-07-24 11:43:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:34,534 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-07-24 11:43:34,534 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:43:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-07-24 11:43:34,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-24 11:43:34,541 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:34,541 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:34,541 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:34,542 INFO L82 PathProgramCache]: Analyzing trace with hash 384476691, now seen corresponding path program 1 times [2018-07-24 11:43:34,542 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:34,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:34,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:34,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:34,545 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:34,911 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:43:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:43:34,975 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:43:34,976 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:43:34,976 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:34,978 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:43:34,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:43:34,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:43:34,979 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-07-24 11:43:37,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:37,426 INFO L93 Difference]: Finished difference Result 998 states and 1753 transitions. [2018-07-24 11:43:37,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:43:37,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-24 11:43:37,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:37,433 INFO L225 Difference]: With dead ends: 998 [2018-07-24 11:43:37,434 INFO L226 Difference]: Without dead ends: 648 [2018-07-24 11:43:37,437 INFO L573 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 [2018-07-24 11:43:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2018-07-24 11:43:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 639. [2018-07-24 11:43:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2018-07-24 11:43:37,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 994 transitions. [2018-07-24 11:43:37,486 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 994 transitions. Word has length 104 [2018-07-24 11:43:37,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:37,486 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 994 transitions. [2018-07-24 11:43:37,487 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:43:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 994 transitions. [2018-07-24 11:43:37,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-24 11:43:37,493 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:37,493 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:37,493 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:37,494 INFO L82 PathProgramCache]: Analyzing trace with hash 93224755, now seen corresponding path program 1 times [2018-07-24 11:43:37,494 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:37,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:37,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:37,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:37,495 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:43:37,763 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:43:37,763 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:43:37,764 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:37,764 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:43:37,765 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:43:37,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:43:37,765 INFO L87 Difference]: Start difference. First operand 639 states and 994 transitions. Second operand 6 states. [2018-07-24 11:43:40,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:40,496 INFO L93 Difference]: Finished difference Result 1567 states and 2516 transitions. [2018-07-24 11:43:40,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:43:40,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-07-24 11:43:40,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:40,507 INFO L225 Difference]: With dead ends: 1567 [2018-07-24 11:43:40,507 INFO L226 Difference]: Without dead ends: 934 [2018-07-24 11:43:40,511 INFO L573 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 [2018-07-24 11:43:40,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2018-07-24 11:43:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 918. [2018-07-24 11:43:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2018-07-24 11:43:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1356 transitions. [2018-07-24 11:43:40,572 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1356 transitions. Word has length 120 [2018-07-24 11:43:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:40,573 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1356 transitions. [2018-07-24 11:43:40,573 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:43:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1356 transitions. [2018-07-24 11:43:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-24 11:43:40,587 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:40,589 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:40,590 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:40,590 INFO L82 PathProgramCache]: Analyzing trace with hash 640306623, now seen corresponding path program 1 times [2018-07-24 11:43:40,590 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:40,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:40,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:40,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:40,592 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:43:40,994 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:43:40,995 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:43:40,995 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:40,996 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:43:40,996 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:43:40,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:43:40,997 INFO L87 Difference]: Start difference. First operand 918 states and 1356 transitions. Second operand 5 states. [2018-07-24 11:43:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:44,416 INFO L93 Difference]: Finished difference Result 3237 states and 4897 transitions. [2018-07-24 11:43:44,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:43:44,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2018-07-24 11:43:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:44,435 INFO L225 Difference]: With dead ends: 3237 [2018-07-24 11:43:44,435 INFO L226 Difference]: Without dead ends: 2325 [2018-07-24 11:43:44,442 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:43:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2018-07-24 11:43:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2280. [2018-07-24 11:43:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2280 states. [2018-07-24 11:43:44,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3224 transitions. [2018-07-24 11:43:44,528 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3224 transitions. Word has length 142 [2018-07-24 11:43:44,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:44,529 INFO L471 AbstractCegarLoop]: Abstraction has 2280 states and 3224 transitions. [2018-07-24 11:43:44,529 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:43:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3224 transitions. [2018-07-24 11:43:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-24 11:43:44,533 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:44,534 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:44,534 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:44,534 INFO L82 PathProgramCache]: Analyzing trace with hash 574883043, now seen corresponding path program 1 times [2018-07-24 11:43:44,534 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:44,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:44,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:44,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:44,536 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:44,768 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:43:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:43:44,996 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:43:44,996 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:43:44,996 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:44,997 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:43:44,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:43:44,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:43:44,998 INFO L87 Difference]: Start difference. First operand 2280 states and 3224 transitions. Second operand 6 states. [2018-07-24 11:43:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:46,412 INFO L93 Difference]: Finished difference Result 4928 states and 7279 transitions. [2018-07-24 11:43:46,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:43:46,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-07-24 11:43:46,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:46,444 INFO L225 Difference]: With dead ends: 4928 [2018-07-24 11:43:46,444 INFO L226 Difference]: Without dead ends: 2654 [2018-07-24 11:43:46,454 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:43:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2018-07-24 11:43:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2578. [2018-07-24 11:43:46,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2018-07-24 11:43:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3502 transitions. [2018-07-24 11:43:46,561 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3502 transitions. Word has length 144 [2018-07-24 11:43:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:46,562 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3502 transitions. [2018-07-24 11:43:46,562 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:43:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3502 transitions. [2018-07-24 11:43:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-24 11:43:46,573 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:46,573 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:46,574 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:46,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1292554636, now seen corresponding path program 1 times [2018-07-24 11:43:46,574 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:46,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:46,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:46,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:46,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 11:43:46,786 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:43:46,786 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:43:46,787 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:46,787 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:43:46,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:43:46,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:43:46,788 INFO L87 Difference]: Start difference. First operand 2578 states and 3502 transitions. Second operand 3 states. [2018-07-24 11:43:47,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:47,988 INFO L93 Difference]: Finished difference Result 5983 states and 8346 transitions. [2018-07-24 11:43:47,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:43:47,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-07-24 11:43:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:48,009 INFO L225 Difference]: With dead ends: 5983 [2018-07-24 11:43:48,010 INFO L226 Difference]: Without dead ends: 3411 [2018-07-24 11:43:48,027 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:43:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2018-07-24 11:43:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3411. [2018-07-24 11:43:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3411 states. [2018-07-24 11:43:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 4468 transitions. [2018-07-24 11:43:48,120 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 4468 transitions. Word has length 198 [2018-07-24 11:43:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:48,121 INFO L471 AbstractCegarLoop]: Abstraction has 3411 states and 4468 transitions. [2018-07-24 11:43:48,121 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:43:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 4468 transitions. [2018-07-24 11:43:48,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-24 11:43:48,133 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:48,133 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:48,134 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:48,134 INFO L82 PathProgramCache]: Analyzing trace with hash 536610725, now seen corresponding path program 1 times [2018-07-24 11:43:48,134 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:48,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:48,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:48,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:48,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 28 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:43:48,589 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:43:48,589 INFO L191 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 [2018-07-24 11:43:48,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:48,615 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:43:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:48,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:43:49,086 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:43:49,087 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:43:49,504 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-07-24 11:43:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 28 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:43:49,856 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:43:49,856 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 11:43:49,856 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:49,857 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:43:49,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:43:49,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:43:49,858 INFO L87 Difference]: Start difference. First operand 3411 states and 4468 transitions. Second operand 5 states. [2018-07-24 11:43:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:52,927 INFO L93 Difference]: Finished difference Result 8543 states and 11308 transitions. [2018-07-24 11:43:52,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:43:52,930 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2018-07-24 11:43:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:52,956 INFO L225 Difference]: With dead ends: 8543 [2018-07-24 11:43:52,957 INFO L226 Difference]: Without dead ends: 5138 [2018-07-24 11:43:52,978 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 399 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:43:52,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5138 states. [2018-07-24 11:43:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5138 to 4874. [2018-07-24 11:43:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4874 states. [2018-07-24 11:43:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 6168 transitions. [2018-07-24 11:43:53,104 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 6168 transitions. Word has length 201 [2018-07-24 11:43:53,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:53,105 INFO L471 AbstractCegarLoop]: Abstraction has 4874 states and 6168 transitions. [2018-07-24 11:43:53,105 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:43:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 6168 transitions. [2018-07-24 11:43:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-07-24 11:43:53,120 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:53,120 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:53,121 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:53,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1785646988, now seen corresponding path program 1 times [2018-07-24 11:43:53,121 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:53,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:53,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:53,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:53,122 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:53,386 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:43:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 28 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:43:53,820 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:43:53,821 INFO L191 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 [2018-07-24 11:43:53,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:53,836 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:43:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:53,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:43:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:43:54,395 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:43:55,021 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 28 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:43:55,043 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:43:55,044 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 11:43:55,044 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:43:55,044 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:43:55,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:43:55,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:43:55,045 INFO L87 Difference]: Start difference. First operand 4874 states and 6168 transitions. Second operand 5 states. [2018-07-24 11:43:57,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:43:57,798 INFO L93 Difference]: Finished difference Result 12233 states and 16189 transitions. [2018-07-24 11:43:57,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:43:57,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2018-07-24 11:43:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:43:57,834 INFO L225 Difference]: With dead ends: 12233 [2018-07-24 11:43:57,835 INFO L226 Difference]: Without dead ends: 7365 [2018-07-24 11:43:57,870 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 446 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 11:43:57,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2018-07-24 11:43:58,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 7308. [2018-07-24 11:43:58,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7308 states. [2018-07-24 11:43:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7308 states to 7308 states and 9090 transitions. [2018-07-24 11:43:58,031 INFO L78 Accepts]: Start accepts. Automaton has 7308 states and 9090 transitions. Word has length 226 [2018-07-24 11:43:58,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:43:58,031 INFO L471 AbstractCegarLoop]: Abstraction has 7308 states and 9090 transitions. [2018-07-24 11:43:58,031 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:43:58,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7308 states and 9090 transitions. [2018-07-24 11:43:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-07-24 11:43:58,054 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:43:58,055 INFO L353 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:43:58,055 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:43:58,055 INFO L82 PathProgramCache]: Analyzing trace with hash -354538144, now seen corresponding path program 1 times [2018-07-24 11:43:58,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:43:58,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:58,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:58,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:43:58,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:43:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:58,344 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:43:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 48 proven. 159 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 11:43:59,204 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:43:59,204 INFO L191 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 [2018-07-24 11:43:59,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:43:59,225 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:43:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:43:59,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:43:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:43:59,481 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:43:59,779 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 11:44:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 125 proven. 82 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 11:44:00,409 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:44:00,409 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:44:00,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:00,440 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:44:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:00,664 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:44:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:44:01,098 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:44:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 125 proven. 82 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 11:44:01,280 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:44:01,281 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 15 [2018-07-24 11:44:01,281 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:44:01,282 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 11:44:01,282 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 11:44:01,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-07-24 11:44:01,283 INFO L87 Difference]: Start difference. First operand 7308 states and 9090 transitions. Second operand 11 states. [2018-07-24 11:44:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:44:05,406 INFO L93 Difference]: Finished difference Result 19367 states and 25276 transitions. [2018-07-24 11:44:05,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 11:44:05,407 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 273 [2018-07-24 11:44:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:44:05,429 INFO L225 Difference]: With dead ends: 19367 [2018-07-24 11:44:05,429 INFO L226 Difference]: Without dead ends: 3334 [2018-07-24 11:44:05,486 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1093 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2018-07-24 11:44:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2018-07-24 11:44:05,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 2317. [2018-07-24 11:44:05,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2317 states. [2018-07-24 11:44:05,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2682 transitions. [2018-07-24 11:44:05,555 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2682 transitions. Word has length 273 [2018-07-24 11:44:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:44:05,555 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 2682 transitions. [2018-07-24 11:44:05,555 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 11:44:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2682 transitions. [2018-07-24 11:44:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-07-24 11:44:05,573 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:44:05,574 INFO L353 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:44:05,574 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:44:05,574 INFO L82 PathProgramCache]: Analyzing trace with hash -2129856920, now seen corresponding path program 1 times [2018-07-24 11:44:05,574 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:44:05,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:44:05,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:05,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:44:05,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:44:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:06,191 WARN L169 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-07-24 11:44:06,503 WARN L169 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-07-24 11:44:07,053 WARN L169 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-24 11:44:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 134 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 11:44:07,550 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:44:07,550 INFO L191 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 [2018-07-24 11:44:07,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:07,558 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:44:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:07,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:44:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:44:07,967 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:44:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 134 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 11:44:08,431 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:44:08,432 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:44:08,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:08,448 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:44:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:08,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:44:08,814 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:44:08,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:44:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 134 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 11:44:09,131 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:44:09,131 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 22 [2018-07-24 11:44:09,131 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:44:09,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-24 11:44:09,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-24 11:44:09,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2018-07-24 11:44:09,133 INFO L87 Difference]: Start difference. First operand 2317 states and 2682 transitions. Second operand 15 states. [2018-07-24 11:44:10,587 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 11:44:12,377 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2018-07-24 11:44:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:44:15,389 INFO L93 Difference]: Finished difference Result 4792 states and 5725 transitions. [2018-07-24 11:44:15,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-24 11:44:15,390 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 309 [2018-07-24 11:44:15,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:44:15,399 INFO L225 Difference]: With dead ends: 4792 [2018-07-24 11:44:15,400 INFO L226 Difference]: Without dead ends: 2625 [2018-07-24 11:44:15,404 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1317 GetRequests, 1258 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=823, Invalid=2717, Unknown=0, NotChecked=0, Total=3540 [2018-07-24 11:44:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2018-07-24 11:44:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2471. [2018-07-24 11:44:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2471 states. [2018-07-24 11:44:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 2815 transitions. [2018-07-24 11:44:15,466 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 2815 transitions. Word has length 309 [2018-07-24 11:44:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:44:15,467 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 2815 transitions. [2018-07-24 11:44:15,467 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-24 11:44:15,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 2815 transitions. [2018-07-24 11:44:15,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-07-24 11:44:15,475 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:44:15,475 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:44:15,476 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:44:15,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1096246056, now seen corresponding path program 1 times [2018-07-24 11:44:15,476 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:44:15,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:44:15,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:15,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:44:15,478 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:44:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 55 proven. 245 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:44:16,514 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:44:16,514 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:44:16,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:16,526 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:44:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:16,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:44:19,155 WARN L169 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 184 DAG size of output: 39 [2018-07-24 11:44:19,633 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 264 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:44:19,633 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:44:26,126 WARN L169 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 187 DAG size of output: 22 [2018-07-24 11:44:26,397 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-07-24 11:44:26,575 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2018-07-24 11:44:26,945 WARN L169 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2018-07-24 11:44:26,950 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,012 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,119 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,309 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,372 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,708 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,773 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,842 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:27,906 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,004 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,066 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,130 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,196 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,285 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,366 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,432 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,517 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,589 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,658 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,737 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:28,993 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:29,095 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:29,191 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:29,307 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:29,427 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:29,614 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:29,725 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:30,170 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:30,599 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:30,845 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:30,922 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,034 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,107 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,188 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,255 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,394 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,458 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,527 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,595 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,655 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,731 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,810 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,878 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:31,943 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,011 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,081 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,145 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,208 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,274 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,339 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,402 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,469 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,532 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,596 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,661 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,761 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,853 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:32,967 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,026 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,094 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,157 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,220 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,294 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,359 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,432 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,500 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,572 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,635 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,702 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,772 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,836 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,900 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:33,964 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,041 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,106 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,173 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,238 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,335 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,400 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,466 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,538 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,602 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,662 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,725 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,789 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,856 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:34,922 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:35,017 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:35,090 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:35,161 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:35,232 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:35,310 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:35,751 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,192 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,437 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,527 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,590 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,671 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,733 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,796 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,859 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,918 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:36,979 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:37,075 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:37,142 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:37,205 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:37,270 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:37,633 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 11:44:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 52 proven. 248 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:44:38,410 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:44:38,410 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:44:38,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:44:38,459 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:44:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:44:38,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:44:40,018 WARN L169 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 99 DAG size of output: 40 [2018-07-24 11:44:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 264 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:44:40,644 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:44:41,862 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 30 [2018-07-24 11:44:41,866 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-07-24 11:44:42,116 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2018-07-24 11:44:42,122 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 30 [2018-07-24 11:44:44,051 WARN L172 XnfTransformerHelper]: Simplifying disjunction of 573185 conjuctions. This might take some time... Received shutdown request... [2018-07-24 11:47:44,379 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 11:47:44,580 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:47:44,581 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:47:44,586 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:47:44,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:47:44 BoogieIcfgContainer [2018-07-24 11:47:44,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:47:44,588 INFO L168 Benchmark]: Toolchain (without parser) took 258082.87 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-24 11:47:44,589 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. [2018-07-24 11:47:44,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.59 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 11:47:44,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.10 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. [2018-07-24 11:47:44,591 INFO L168 Benchmark]: Boogie Preprocessor took 223.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -865.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-07-24 11:47:44,595 INFO L168 Benchmark]: RCFGBuilder took 4414.40 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: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 7.1 GB. [2018-07-24 11:47:44,596 INFO L168 Benchmark]: TraceAbstraction took 252575.60 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -323.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-24 11:47:44,609 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 761.59 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 103.10 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 223.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -865.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4414.40 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: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252575.60 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -323.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was analyzing trace of length 318 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 573185 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 252.5s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 29.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1039 SDtfs, 8283 SDslu, 1143 SDs, 0 SdLazy, 12490 SolverSat, 2676 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3361 GetRequests, 3210 SyntacticMatches, 21 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7308occurred in iteration=8, 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: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1638 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 3329 NumberOfCodeBlocks, 3329 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4898 ConstructedInterpolants, 0 QuantifiedInterpolants, 4423420 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2791 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 2848/3735 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/Problem10_label24_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-47-44-631.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label24_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-47-44-631.csv Completed graceful shutdown