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/Problem16_label01_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:14:52,529 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:14:52,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:14:52,549 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:14:52,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:14:52,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:14:52,554 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:14:52,556 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:14:52,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:14:52,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:14:52,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:14:52,562 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:14:52,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:14:52,564 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:14:52,567 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:14:52,568 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:14:52,569 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:14:52,580 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:14:52,584 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:14:52,586 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:14:52,590 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:14:52,591 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:14:52,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:14:52,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:14:52,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:14:52,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:14:52,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:14:52,601 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:14:52,601 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:14:52,606 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:14:52,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:14:52,607 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:14:52,607 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:14:52,607 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:14:52,608 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:14:52,610 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:14:52,610 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 12:14:52,637 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:14:52,637 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:14:52,639 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:14:52,639 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:14:52,639 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:14:52,640 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:14:52,640 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:14:52,640 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:14:52,641 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:14:52,641 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:14:52,641 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:14:52,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:14:52,642 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:14:52,642 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:14:52,643 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:14:52,643 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:14:52,643 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:14:52,643 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:14:52,645 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:14:52,645 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:14:52,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:14:52,645 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:14:52,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:14:52,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:14:52,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:14:52,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:14:52,646 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:14:52,647 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:14:52,647 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:14:52,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:14:52,647 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:14:52,647 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:14:52,647 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:14:52,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:14:52,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:14:52,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:14:52,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:14:52,739 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:14:52,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label01_false-unreach-call.c [2018-07-24 12:14:53,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41125e99/ab299cb7b35a4c37988012f66fcad158/FLAG7561aff94 [2018-07-24 12:14:53,465 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:14:53,466 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label01_false-unreach-call.c [2018-07-24 12:14:53,490 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41125e99/ab299cb7b35a4c37988012f66fcad158/FLAG7561aff94 [2018-07-24 12:14:53,509 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41125e99/ab299cb7b35a4c37988012f66fcad158 [2018-07-24 12:14:53,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:14:53,523 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:14:53,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:14:53,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:14:53,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:14:53,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:14:53" (1/1) ... [2018-07-24 12:14:53,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762c7a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:53, skipping insertion in model container [2018-07-24 12:14:53,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:14:53" (1/1) ... [2018-07-24 12:14:53,822 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:14:54,442 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:14:54,462 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:14:54,760 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:14:54,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54 WrapperNode [2018-07-24 12:14:54,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:14:54,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:14:54,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:14:54,857 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:14:54,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:54,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:14:55,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:14:55,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:14:55,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:14:55,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (1/1) ... [2018-07-24 12:14:55,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:14:55,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:14:55,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:14:55,590 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:14:55,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (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 12:14:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:14:55,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:14:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:14:55,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:14:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:14:55,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:14:55,672 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_output2 [2018-07-24 12:14:55,672 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_output2 [2018-07-24 12:14:55,672 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 12:14:55,673 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 12:15:02,802 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:15:02,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:15:02 BoogieIcfgContainer [2018-07-24 12:15:02,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:15:02,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:15:02,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:15:02,807 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:15:02,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:14:53" (1/3) ... [2018-07-24 12:15:02,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c3b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:15:02, skipping insertion in model container [2018-07-24 12:15:02,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:14:54" (2/3) ... [2018-07-24 12:15:02,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c3b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:15:02, skipping insertion in model container [2018-07-24 12:15:02,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:15:02" (3/3) ... [2018-07-24 12:15:02,819 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label01_false-unreach-call.c [2018-07-24 12:15:02,832 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:15:02,845 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:15:02,902 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:15:02,903 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:15:02,903 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:15:02,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:15:02,904 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:15:02,904 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:15:02,904 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:15:02,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:15:02,904 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:15:02,948 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-24 12:15:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-24 12:15:02,963 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:15:02,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:15:02,964 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 12:15:02,970 INFO L82 PathProgramCache]: Analyzing trace with hash 778148547, now seen corresponding path program 1 times [2018-07-24 12:15:02,973 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:15:03,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:03,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:03,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:03,021 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:15:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:03,428 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:15:03,477 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 12:15:03,479 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:15:03,480 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:15:03,480 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:15:03,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:15:03,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:15:03,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:15:03,506 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-24 12:15:09,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:15:09,024 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-24 12:15:09,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:15:09,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-07-24 12:15:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:15:09,052 INFO L225 Difference]: With dead ends: 1156 [2018-07-24 12:15:09,053 INFO L226 Difference]: Without dead ends: 744 [2018-07-24 12:15:09,062 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 12:15:09,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-24 12:15:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-24 12:15:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-24 12:15:09,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-07-24 12:15:09,167 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 33 [2018-07-24 12:15:09,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:15:09,168 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-07-24 12:15:09,168 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:15:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-07-24 12:15:09,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 12:15:09,174 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:15:09,174 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:15:09,174 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 12:15:09,175 INFO L82 PathProgramCache]: Analyzing trace with hash -615675872, now seen corresponding path program 1 times [2018-07-24 12:15:09,175 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:15:09,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:09,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:09,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:09,177 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:15:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:15:09,521 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:15:09,521 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:15:09,522 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:15:09,524 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:15:09,524 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:15:09,524 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:15:09,525 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-07-24 12:15:16,720 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 12:15:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:15:27,393 INFO L93 Difference]: Finished difference Result 2959 states and 5492 transitions. [2018-07-24 12:15:27,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 12:15:27,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-07-24 12:15:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:15:27,422 INFO L225 Difference]: With dead ends: 2959 [2018-07-24 12:15:27,422 INFO L226 Difference]: Without dead ends: 2221 [2018-07-24 12:15:27,436 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:15:27,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-07-24 12:15:27,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2170. [2018-07-24 12:15:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2018-07-24 12:15:27,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3670 transitions. [2018-07-24 12:15:27,538 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3670 transitions. Word has length 109 [2018-07-24 12:15:27,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:15:27,539 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3670 transitions. [2018-07-24 12:15:27,539 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:15:27,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3670 transitions. [2018-07-24 12:15:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-07-24 12:15:27,557 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:15:27,561 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:15:27,561 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 12:15:27,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1121541077, now seen corresponding path program 1 times [2018-07-24 12:15:27,562 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:15:27,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:27,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:27,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:27,563 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:15:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:28,012 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:15:28,012 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:15:28,013 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 12:15:28,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:28,028 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:15:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:28,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:15:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:15:28,551 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:15:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:15:28,877 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:15:28,877 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 12:15:28,878 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:15:28,879 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:15:28,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:15:28,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:15:28,881 INFO L87 Difference]: Start difference. First operand 2170 states and 3670 transitions. Second operand 5 states. [2018-07-24 12:15:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:15:36,464 INFO L93 Difference]: Finished difference Result 9788 states and 17385 transitions. [2018-07-24 12:15:36,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:15:36,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 197 [2018-07-24 12:15:36,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:15:36,526 INFO L225 Difference]: With dead ends: 9788 [2018-07-24 12:15:36,526 INFO L226 Difference]: Without dead ends: 7624 [2018-07-24 12:15:36,563 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 389 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:15:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7624 states. [2018-07-24 12:15:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7624 to 7555. [2018-07-24 12:15:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7555 states. [2018-07-24 12:15:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 11445 transitions. [2018-07-24 12:15:36,803 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 11445 transitions. Word has length 197 [2018-07-24 12:15:36,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:15:36,803 INFO L471 AbstractCegarLoop]: Abstraction has 7555 states and 11445 transitions. [2018-07-24 12:15:36,804 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:15:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 11445 transitions. [2018-07-24 12:15:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-07-24 12:15:36,808 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:15:36,808 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:15:36,809 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 12:15:36,809 INFO L82 PathProgramCache]: Analyzing trace with hash -761511687, now seen corresponding path program 1 times [2018-07-24 12:15:36,809 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:15:36,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:36,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:36,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:36,810 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:15:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:37,083 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:15:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 52 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:15:37,187 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:15:37,187 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 12:15:37,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:37,197 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:15:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:37,291 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:15:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:15:37,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:15:37,766 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-07-24 12:15:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 52 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:15:38,003 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:15:38,004 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 12:15:38,004 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:15:38,005 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:15:38,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:15:38,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:15:38,005 INFO L87 Difference]: Start difference. First operand 7555 states and 11445 transitions. Second operand 5 states. [2018-07-24 12:15:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:15:46,321 INFO L93 Difference]: Finished difference Result 20747 states and 32170 transitions. [2018-07-24 12:15:46,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:15:46,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2018-07-24 12:15:46,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:15:46,409 INFO L225 Difference]: With dead ends: 20747 [2018-07-24 12:15:46,410 INFO L226 Difference]: Without dead ends: 13198 [2018-07-24 12:15:46,478 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 392 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:15:46,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13198 states. [2018-07-24 12:15:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13198 to 13135. [2018-07-24 12:15:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13135 states. [2018-07-24 12:15:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13135 states to 13135 states and 19650 transitions. [2018-07-24 12:15:46,832 INFO L78 Accepts]: Start accepts. Automaton has 13135 states and 19650 transitions. Word has length 199 [2018-07-24 12:15:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:15:46,832 INFO L471 AbstractCegarLoop]: Abstraction has 13135 states and 19650 transitions. [2018-07-24 12:15:46,832 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:15:46,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13135 states and 19650 transitions. [2018-07-24 12:15:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-24 12:15:46,838 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:15:46,839 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:15:46,839 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 12:15:46,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1709322925, now seen corresponding path program 1 times [2018-07-24 12:15:46,839 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:15:46,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:46,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:46,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:46,841 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:15:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:47,151 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:15:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 53 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 12:15:47,744 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:15:47,744 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 12:15:47,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:47,756 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:15:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:47,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:15:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:15:48,084 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:15:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:15:48,259 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:15:48,259 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 12:15:48,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:48,285 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:15:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:48,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:15:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 12:15:48,616 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:15:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 12:15:48,749 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-07-24 12:15:48,750 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 13 [2018-07-24 12:15:48,750 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:15:48,750 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:15:48,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:15:48,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:15:48,751 INFO L87 Difference]: Start difference. First operand 13135 states and 19650 transitions. Second operand 5 states. [2018-07-24 12:15:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:15:54,962 INFO L93 Difference]: Finished difference Result 29038 states and 44862 transitions. [2018-07-24 12:15:54,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:15:54,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2018-07-24 12:15:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:15:55,046 INFO L225 Difference]: With dead ends: 29038 [2018-07-24 12:15:55,046 INFO L226 Difference]: Without dead ends: 15909 [2018-07-24 12:15:55,091 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 844 GetRequests, 826 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:15:55,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15909 states. [2018-07-24 12:15:55,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15909 to 15859. [2018-07-24 12:15:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15859 states. [2018-07-24 12:15:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15859 states to 15859 states and 21718 transitions. [2018-07-24 12:15:55,508 INFO L78 Accepts]: Start accepts. Automaton has 15859 states and 21718 transitions. Word has length 209 [2018-07-24 12:15:55,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:15:55,509 INFO L471 AbstractCegarLoop]: Abstraction has 15859 states and 21718 transitions. [2018-07-24 12:15:55,509 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:15:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 15859 states and 21718 transitions. [2018-07-24 12:15:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-07-24 12:15:55,520 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:15:55,521 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:15:55,521 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 12:15:55,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1336186277, now seen corresponding path program 1 times [2018-07-24 12:15:55,521 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:15:55,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:55,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:55,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:15:55,523 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:15:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:55,871 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:15:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 52 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:15:56,466 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:15:56,466 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 12:15:56,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:15:56,492 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:15:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:15:56,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:15:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:15:57,054 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:15:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 52 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:15:57,391 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:15:57,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 12:15:57,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:15:57,392 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:15:57,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:15:57,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:15:57,393 INFO L87 Difference]: Start difference. First operand 15859 states and 21718 transitions. Second operand 5 states. [2018-07-24 12:16:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:16:01,326 INFO L93 Difference]: Finished difference Result 33167 states and 46333 transitions. [2018-07-24 12:16:01,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:16:01,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2018-07-24 12:16:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:16:01,401 INFO L225 Difference]: With dead ends: 33167 [2018-07-24 12:16:01,401 INFO L226 Difference]: Without dead ends: 17314 [2018-07-24 12:16:01,458 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 596 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:16:01,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17314 states. [2018-07-24 12:16:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17314 to 17219. [2018-07-24 12:16:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17219 states. [2018-07-24 12:16:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17219 states to 17219 states and 21700 transitions. [2018-07-24 12:16:01,820 INFO L78 Accepts]: Start accepts. Automaton has 17219 states and 21700 transitions. Word has length 301 [2018-07-24 12:16:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:16:01,820 INFO L471 AbstractCegarLoop]: Abstraction has 17219 states and 21700 transitions. [2018-07-24 12:16:01,820 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:16:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 17219 states and 21700 transitions. [2018-07-24 12:16:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-07-24 12:16:01,834 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:16:01,834 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:16:01,835 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 12:16:01,835 INFO L82 PathProgramCache]: Analyzing trace with hash -917177023, now seen corresponding path program 1 times [2018-07-24 12:16:01,835 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:16:01,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:16:01,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:16:01,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:16:01,836 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:16:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:16:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:16:02,708 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:16:02,708 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-24 12:16:02,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:16:02,718 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:16:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:16:02,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:16:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:16:03,023 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:16:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:16:03,234 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:16:03,234 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:16:03,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:16:03,253 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:16:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:16:03,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:16:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:16:03,906 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:16:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:16:04,769 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:16:04,770 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 14 [2018-07-24 12:16:04,770 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:16:04,771 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:16:04,772 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:16:04,772 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:16:04,772 INFO L87 Difference]: Start difference. First operand 17219 states and 21700 transitions. Second operand 9 states. [2018-07-24 12:16:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:16:14,397 INFO L93 Difference]: Finished difference Result 47575 states and 69749 transitions. [2018-07-24 12:16:14,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 12:16:14,400 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 395 [2018-07-24 12:16:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:16:14,615 INFO L225 Difference]: With dead ends: 47575 [2018-07-24 12:16:14,615 INFO L226 Difference]: Without dead ends: 30362 [2018-07-24 12:16:14,836 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1598 GetRequests, 1575 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2018-07-24 12:16:14,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30362 states. [2018-07-24 12:16:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30362 to 30325. [2018-07-24 12:16:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30325 states. [2018-07-24 12:16:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30325 states to 30325 states and 41054 transitions. [2018-07-24 12:16:15,982 INFO L78 Accepts]: Start accepts. Automaton has 30325 states and 41054 transitions. Word has length 395 [2018-07-24 12:16:15,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:16:15,983 INFO L471 AbstractCegarLoop]: Abstraction has 30325 states and 41054 transitions. [2018-07-24 12:16:15,983 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:16:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 30325 states and 41054 transitions. [2018-07-24 12:16:16,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-07-24 12:16:16,004 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:16:16,004 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:16:16,005 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 12:16:16,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1644446307, now seen corresponding path program 1 times [2018-07-24 12:16:16,005 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:16:16,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:16:16,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:16:16,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:16:16,006 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:16:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:16:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-07-24 12:16:16,690 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:16:16,690 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:16:16,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:16:16,701 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:16:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:16:16,837 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:16:17,273 WARN L169 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2018-07-24 12:16:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-07-24 12:16:17,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:16:18,271 WARN L169 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 23 [2018-07-24 12:16:18,523 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2018-07-24 12:16:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-07-24 12:16:20,714 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:16:20,715 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:16:20,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:16:20,731 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:16:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:16:21,062 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:16:21,540 WARN L169 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-07-24 12:16:22,076 WARN L169 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 504 DAG size of output: 25 [2018-07-24 12:16:22,526 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-07-24 12:16:22,526 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:16:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-07-24 12:16:25,053 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:16:25,054 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6, 7, 6] total 14 [2018-07-24 12:16:25,054 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:16:25,055 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:16:25,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:16:25,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:16:25,056 INFO L87 Difference]: Start difference. First operand 30325 states and 41054 transitions. Second operand 9 states. [2018-07-24 12:16:25,929 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2018-07-24 12:17:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:17:19,703 INFO L93 Difference]: Finished difference Result 72148 states and 94033 transitions. [2018-07-24 12:17:19,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 12:17:19,704 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 457 [2018-07-24 12:17:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:17:19,848 INFO L225 Difference]: With dead ends: 72148 [2018-07-24 12:17:19,848 INFO L226 Difference]: Without dead ends: 41834 [2018-07-24 12:17:19,997 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1845 GetRequests, 1817 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2018-07-24 12:17:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41834 states. [2018-07-24 12:17:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41834 to 41696. [2018-07-24 12:17:20,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41696 states. [2018-07-24 12:17:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41696 states to 41696 states and 50337 transitions. [2018-07-24 12:17:20,673 INFO L78 Accepts]: Start accepts. Automaton has 41696 states and 50337 transitions. Word has length 457 [2018-07-24 12:17:20,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:17:20,674 INFO L471 AbstractCegarLoop]: Abstraction has 41696 states and 50337 transitions. [2018-07-24 12:17:20,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:17:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 41696 states and 50337 transitions. [2018-07-24 12:17:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2018-07-24 12:17:20,716 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:17:20,716 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:17:20,716 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 12:17:20,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1545104756, now seen corresponding path program 1 times [2018-07-24 12:17:20,717 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:17:20,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:17:20,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:17:20,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:17:20,718 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:17:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:17:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 298 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:17:22,560 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:17:22,560 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:17:22,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:17:22,568 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:17:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:17:22,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:17:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 147 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:17:24,378 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:17:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 57 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:17:25,820 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:17:25,821 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:17:25,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:17:25,835 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:17:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:17:26,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:17:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-07-24 12:17:27,215 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:17:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 55 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:17:30,694 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:17:30,695 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 7, 8] total 33 [2018-07-24 12:17:30,695 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:17:30,697 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-24 12:17:30,697 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-24 12:17:30,697 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=905, Unknown=0, NotChecked=0, Total=1056 [2018-07-24 12:17:30,697 INFO L87 Difference]: Start difference. First operand 41696 states and 50337 transitions. Second operand 18 states. [2018-07-24 12:17:39,717 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-07-24 12:17:40,005 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2018-07-24 12:17:42,852 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-07-24 12:17:43,015 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2018-07-24 12:17:43,683 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-07-24 12:17:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:17:48,990 INFO L93 Difference]: Finished difference Result 84008 states and 101634 transitions. [2018-07-24 12:17:48,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-24 12:17:48,990 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 546 [2018-07-24 12:17:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:17:49,149 INFO L225 Difference]: With dead ends: 84008 [2018-07-24 12:17:49,149 INFO L226 Difference]: Without dead ends: 42319 [2018-07-24 12:17:49,259 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2244 GetRequests, 2177 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=881, Invalid=3541, Unknown=0, NotChecked=0, Total=4422 [2018-07-24 12:17:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42319 states. [2018-07-24 12:17:49,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42319 to 42295. [2018-07-24 12:17:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42295 states. [2018-07-24 12:17:49,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42295 states to 42295 states and 50673 transitions. [2018-07-24 12:17:49,930 INFO L78 Accepts]: Start accepts. Automaton has 42295 states and 50673 transitions. Word has length 546 [2018-07-24 12:17:49,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:17:49,931 INFO L471 AbstractCegarLoop]: Abstraction has 42295 states and 50673 transitions. [2018-07-24 12:17:49,931 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-24 12:17:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 42295 states and 50673 transitions. [2018-07-24 12:17:49,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2018-07-24 12:17:49,949 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:17:49,950 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:17:49,950 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 12:17:49,951 INFO L82 PathProgramCache]: Analyzing trace with hash 607425306, now seen corresponding path program 1 times [2018-07-24 12:17:49,951 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:17:49,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:17:49,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:17:49,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:17:49,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:17:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:17:50,750 WARN L169 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 12:17:51,226 WARN L169 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-07-24 12:17:51,503 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-07-24 12:17:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 173 proven. 183 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-24 12:17:52,380 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:17:52,380 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:17:52,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:17:52,389 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:17:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:17:52,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:17:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 417 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:17:52,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:17:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 173 proven. 183 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-24 12:17:53,408 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:17:53,408 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:17:53,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:17:53,424 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:17:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:17:53,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:17:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 417 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:17:54,008 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:17:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 173 proven. 183 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-24 12:17:54,335 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:17:54,335 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 25 [2018-07-24 12:17:54,335 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:17:54,337 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-24 12:17:54,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-24 12:17:54,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2018-07-24 12:17:54,338 INFO L87 Difference]: Start difference. First operand 42295 states and 50673 transitions. Second operand 16 states. [2018-07-24 12:18:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:18:09,448 INFO L93 Difference]: Finished difference Result 82389 states and 99997 transitions. [2018-07-24 12:18:09,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-24 12:18:09,448 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 549 [2018-07-24 12:18:09,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:18:09,535 INFO L225 Difference]: With dead ends: 82389 [2018-07-24 12:18:09,535 INFO L226 Difference]: Without dead ends: 30983 [2018-07-24 12:18:09,665 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2280 GetRequests, 2217 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=862, Invalid=3298, Unknown=0, NotChecked=0, Total=4160 [2018-07-24 12:18:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30983 states. [2018-07-24 12:18:10,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30983 to 29410. [2018-07-24 12:18:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29410 states. [2018-07-24 12:18:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29410 states to 29410 states and 32014 transitions. [2018-07-24 12:18:10,110 INFO L78 Accepts]: Start accepts. Automaton has 29410 states and 32014 transitions. Word has length 549 [2018-07-24 12:18:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:18:10,110 INFO L471 AbstractCegarLoop]: Abstraction has 29410 states and 32014 transitions. [2018-07-24 12:18:10,110 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-24 12:18:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 29410 states and 32014 transitions. [2018-07-24 12:18:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2018-07-24 12:18:10,118 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:18:10,118 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:10,118 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 12:18:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1438182554, now seen corresponding path program 1 times [2018-07-24 12:18:10,119 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:18:10,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:18:10,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:10,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:18:10,120 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:18:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 245 proven. 111 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-07-24 12:18:10,554 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:18:10,554 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:18:10,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:10,562 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:18:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:10,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:18:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 437 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:18:11,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:18:11,579 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 12:18:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 245 proven. 111 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-07-24 12:18:11,860 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:18:11,860 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:18:11,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:11,877 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:18:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:12,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:18:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 437 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-24 12:18:12,402 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:18:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 245 proven. 111 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-07-24 12:18:12,691 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:18:12,691 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 12:18:12,691 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:18:12,693 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:18:12,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:18:12,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:18:12,694 INFO L87 Difference]: Start difference. First operand 29410 states and 32014 transitions. Second operand 9 states. [2018-07-24 12:18:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:18:19,370 INFO L93 Difference]: Finished difference Result 61773 states and 69275 transitions. [2018-07-24 12:18:19,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-24 12:18:19,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 549 [2018-07-24 12:18:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:18:19,488 INFO L225 Difference]: With dead ends: 61773 [2018-07-24 12:18:19,489 INFO L226 Difference]: Without dead ends: 32031 [2018-07-24 12:18:19,571 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2224 GetRequests, 2199 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2018-07-24 12:18:19,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32031 states. [2018-07-24 12:18:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32031 to 32002. [2018-07-24 12:18:20,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32002 states. [2018-07-24 12:18:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32002 states to 32002 states and 35133 transitions. [2018-07-24 12:18:20,235 INFO L78 Accepts]: Start accepts. Automaton has 32002 states and 35133 transitions. Word has length 549 [2018-07-24 12:18:20,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:18:20,236 INFO L471 AbstractCegarLoop]: Abstraction has 32002 states and 35133 transitions. [2018-07-24 12:18:20,236 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:18:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 32002 states and 35133 transitions. [2018-07-24 12:18:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-07-24 12:18:20,242 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:18:20,243 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:18:20,243 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:18:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash 616038404, now seen corresponding path program 1 times [2018-07-24 12:18:20,244 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:18:20,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:18:20,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:20,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:18:20,245 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:18:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-07-24 12:18:20,796 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:18:20,796 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:18:20,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:20,804 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:18:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:20,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:18:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-07-24 12:18:21,454 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:18:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 55 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:18:22,678 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:18:22,678 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:18:22,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:22,695 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:18:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:23,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:18:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-07-24 12:18:23,354 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:18:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 55 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:18:24,323 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:18:24,323 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 8, 9] total 16 [2018-07-24 12:18:24,323 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:18:24,324 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 12:18:24,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 12:18:24,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2018-07-24 12:18:24,325 INFO L87 Difference]: Start difference. First operand 32002 states and 35133 transitions. Second operand 10 states. [2018-07-24 12:18:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:18:39,042 INFO L93 Difference]: Finished difference Result 32201 states and 35360 transitions. [2018-07-24 12:18:39,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 12:18:39,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 554 [2018-07-24 12:18:39,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:18:39,116 INFO L225 Difference]: With dead ends: 32201 [2018-07-24 12:18:39,116 INFO L226 Difference]: Without dead ends: 32170 [2018-07-24 12:18:39,136 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2235 GetRequests, 2200 SyntacticMatches, 12 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2018-07-24 12:18:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32170 states. [2018-07-24 12:18:39,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32170 to 32106. [2018-07-24 12:18:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32106 states. [2018-07-24 12:18:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32106 states to 32106 states and 35184 transitions. [2018-07-24 12:18:39,660 INFO L78 Accepts]: Start accepts. Automaton has 32106 states and 35184 transitions. Word has length 554 [2018-07-24 12:18:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:18:39,661 INFO L471 AbstractCegarLoop]: Abstraction has 32106 states and 35184 transitions. [2018-07-24 12:18:39,661 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 12:18:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 32106 states and 35184 transitions. [2018-07-24 12:18:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2018-07-24 12:18:39,669 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:18:39,670 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:39,670 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:18:39,671 INFO L82 PathProgramCache]: Analyzing trace with hash 690149290, now seen corresponding path program 1 times [2018-07-24 12:18:39,671 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:18:39,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:18:39,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:39,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:18:39,672 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:18:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 8 proven. 91 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2018-07-24 12:18:40,488 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:18:40,488 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:18:40,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:18:40,496 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:18:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:18:40,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-07-24 12:18:55,006 WARN L177 SmtUtils]: Removed 6 from assertion stack [2018-07-24 12:18:55,007 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 12:18:55,209 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:18:55,209 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:18:55,215 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:18:55,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:18:55 BoogieIcfgContainer [2018-07-24 12:18:55,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:18:55,216 INFO L168 Benchmark]: Toolchain (without parser) took 241694.34 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -639.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-07-24 12:18:55,217 INFO L168 Benchmark]: CDTParser took 0.27 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 12:18:55,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1330.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-07-24 12:18:55,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 229.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 12:18:55,219 INFO L168 Benchmark]: Boogie Preprocessor took 502.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 845.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -984.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-07-24 12:18:55,220 INFO L168 Benchmark]: RCFGBuilder took 7213.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 305.3 MB). Peak memory consumption was 305.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:18:55,220 INFO L168 Benchmark]: TraceAbstraction took 232411.49 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -76.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 12:18:55,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1330.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 229.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 502.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 845.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -984.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7213.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 305.3 MB). Peak memory consumption was 305.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232411.49 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -76.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 85). Cancelled while BasicCegarLoop was analyzing trace of length 718 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 128. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 232.3s OverallTime, 13 OverallIterations, 4 TraceHistogramMax, 170.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1381 SDtfs, 30929 SDslu, 3188 SDs, 0 SdLazy, 58926 SolverSat, 9504 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 143.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14705 GetRequests, 14393 SyntacticMatches, 46 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2613 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42295occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 2193 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 32.4s InterpolantComputationTime, 11313 NumberOfCodeBlocks, 11313 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 18482 ConstructedInterpolants, 54 QuantifiedInterpolants, 86584443 SizeOfPredicates, 36 NumberOfNonLiveVariables, 10499 ConjunctsInSsa, 221 ConjunctsInUnsatCore, 46 InterpolantComputations, 7 PerfectInterpolantSequences, 8529/11556 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/Problem16_label01_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-18-55-248.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label01_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-18-55-248.csv Completed graceful shutdown