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/Problem12_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:15:26,518 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:15:26,520 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:15:26,535 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:15:26,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:15:26,537 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:15:26,541 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:15:26,543 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:15:26,546 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:15:26,546 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:15:26,548 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:15:26,549 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:15:26,550 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:15:26,550 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:15:26,552 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:15:26,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:15:26,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:15:26,555 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:15:26,557 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:15:26,559 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:15:26,560 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:15:26,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:15:26,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:15:26,563 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:15:26,563 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:15:26,564 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:15:26,565 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:15:26,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:15:26,567 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:15:26,568 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:15:26,568 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:15:26,569 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:15:26,569 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:15:26,569 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:15:26,570 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:15:26,571 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:15:26,571 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 14:15:26,595 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:15:26,595 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:15:26,596 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:15:26,597 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:15:26,597 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:15:26,597 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:15:26,597 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:15:26,598 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:15:26,598 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:15:26,598 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:15:26,598 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:15:26,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:15:26,599 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:15:26,599 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:15:26,601 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:15:26,602 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:15:26,602 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:15:26,602 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:15:26,602 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:15:26,603 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:15:26,603 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:15:26,603 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:15:26,603 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:15:26,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:15:26,604 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:15:26,604 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:15:26,604 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:15:26,604 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:15:26,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:15:26,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:15:26,605 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:15:26,605 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:15:26,605 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:15:26,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:15:26,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:15:26,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:15:26,684 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:15:26,686 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:15:26,687 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label59_true-unreach-call.c [2018-07-24 14:15:27,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b0e2997/31fbf5f67a7649d8856bf006a55a10f3/FLAGcff74e590 [2018-07-24 14:15:27,531 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:15:27,532 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label59_true-unreach-call.c [2018-07-24 14:15:27,569 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b0e2997/31fbf5f67a7649d8856bf006a55a10f3/FLAGcff74e590 [2018-07-24 14:15:27,587 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b0e2997/31fbf5f67a7649d8856bf006a55a10f3 [2018-07-24 14:15:27,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:15:27,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:15:27,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:15:27,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:15:27,612 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:15:27,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:15:27" (1/1) ... [2018-07-24 14:15:27,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cca5ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:27, skipping insertion in model container [2018-07-24 14:15:27,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:15:27" (1/1) ... [2018-07-24 14:15:28,022 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:15:29,176 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:15:29,194 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:15:29,907 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:15:30,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30 WrapperNode [2018-07-24 14:15:30,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:15:30,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:15:30,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:15:30,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:15:30,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:30,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:30,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:15:30,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:15:30,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:15:30,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:15:31,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (1/1) ... [2018-07-24 14:15:31,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:15:31,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:15:31,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:15:31,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:15:31,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (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 14:15:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:15:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:15:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:15:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:15:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:15:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:15:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:15:41,835 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:15:41,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:15:41 BoogieIcfgContainer [2018-07-24 14:15:41,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:15:41,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:15:41,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:15:41,840 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:15:41,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:15:27" (1/3) ... [2018-07-24 14:15:41,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f63650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:15:41, skipping insertion in model container [2018-07-24 14:15:41,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:30" (2/3) ... [2018-07-24 14:15:41,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f63650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:15:41, skipping insertion in model container [2018-07-24 14:15:41,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:15:41" (3/3) ... [2018-07-24 14:15:41,844 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label59_true-unreach-call.c [2018-07-24 14:15:41,854 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:15:41,865 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:15:41,924 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:15:41,925 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:15:41,925 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:15:41,925 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:15:41,925 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:15:41,925 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:15:41,925 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:15:41,926 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:15:41,926 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:15:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 14:15:41,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-24 14:15:41,983 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:41,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:15:41,984 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:15:41,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1030733601, now seen corresponding path program 1 times [2018-07-24 14:15:41,991 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:42,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:42,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:42,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:42,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:42,519 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 14:15:42,521 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:15:42,522 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:15:42,522 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:42,528 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:15:42,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:15:42,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:15:42,547 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-24 14:15:50,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:50,854 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-24 14:15:50,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:15:50,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-07-24 14:15:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:50,902 INFO L225 Difference]: With dead ends: 2446 [2018-07-24 14:15:50,902 INFO L226 Difference]: Without dead ends: 1604 [2018-07-24 14:15:50,913 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 14:15:50,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-24 14:15:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-24 14:15:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 14:15:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3014 transitions. [2018-07-24 14:15:51,099 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3014 transitions. Word has length 51 [2018-07-24 14:15:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:51,100 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 3014 transitions. [2018-07-24 14:15:51,100 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:15:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3014 transitions. [2018-07-24 14:15:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-24 14:15:51,107 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:51,108 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, 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 14:15:51,108 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:15:51,108 INFO L82 PathProgramCache]: Analyzing trace with hash -521904398, now seen corresponding path program 1 times [2018-07-24 14:15:51,109 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:51,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:51,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:51,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:51,111 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:15:51,479 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:15:51,479 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:15:51,480 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:51,482 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:51,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:51,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:15:51,483 INFO L87 Difference]: Start difference. First operand 1604 states and 3014 transitions. Second operand 5 states. [2018-07-24 14:16:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:04,031 INFO L93 Difference]: Finished difference Result 4873 states and 9168 transitions. [2018-07-24 14:16:04,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:16:04,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-07-24 14:16:04,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:04,058 INFO L225 Difference]: With dead ends: 4873 [2018-07-24 14:16:04,058 INFO L226 Difference]: Without dead ends: 3275 [2018-07-24 14:16:04,064 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:16:04,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-07-24 14:16:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-07-24 14:16:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-07-24 14:16:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5443 transitions. [2018-07-24 14:16:04,207 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5443 transitions. Word has length 121 [2018-07-24 14:16:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:04,209 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5443 transitions. [2018-07-24 14:16:04,209 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:16:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5443 transitions. [2018-07-24 14:16:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-24 14:16:04,220 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:04,221 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, 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 14:16:04,221 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:04,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1181018850, now seen corresponding path program 1 times [2018-07-24 14:16:04,222 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:04,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:04,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:04,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:04,223 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:04,514 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:16:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:04,628 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:04,629 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 14:16:04,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:04,644 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:04,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:04,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:05,191 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:05,213 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:16:05,214 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 14:16:05,214 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:05,219 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:16:05,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:16:05,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:16:05,221 INFO L87 Difference]: Start difference. First operand 3241 states and 5443 transitions. Second operand 3 states. [2018-07-24 14:16:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:11,449 INFO L93 Difference]: Finished difference Result 9583 states and 16328 transitions. [2018-07-24 14:16:11,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:16:11,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2018-07-24 14:16:11,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:11,479 INFO L225 Difference]: With dead ends: 9583 [2018-07-24 14:16:11,479 INFO L226 Difference]: Without dead ends: 4757 [2018-07-24 14:16:11,497 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 253 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:16:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2018-07-24 14:16:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4757. [2018-07-24 14:16:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4757 states. [2018-07-24 14:16:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6798 transitions. [2018-07-24 14:16:11,628 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6798 transitions. Word has length 127 [2018-07-24 14:16:11,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:11,632 INFO L471 AbstractCegarLoop]: Abstraction has 4757 states and 6798 transitions. [2018-07-24 14:16:11,632 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:16:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6798 transitions. [2018-07-24 14:16:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-24 14:16:11,635 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:11,636 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, 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] [2018-07-24 14:16:11,636 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:11,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1311721769, now seen corresponding path program 1 times [2018-07-24 14:16:11,636 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:11,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:11,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:11,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:11,638 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:11,956 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:16:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:12,114 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:16:12,114 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:16:12,114 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:12,115 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:16:12,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:16:12,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:16:12,116 INFO L87 Difference]: Start difference. First operand 4757 states and 6798 transitions. Second operand 6 states. [2018-07-24 14:16:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:22,478 INFO L93 Difference]: Finished difference Result 19007 states and 28122 transitions. [2018-07-24 14:16:22,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:16:22,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-07-24 14:16:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:22,561 INFO L225 Difference]: With dead ends: 19007 [2018-07-24 14:16:22,561 INFO L226 Difference]: Without dead ends: 14256 [2018-07-24 14:16:22,594 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:16:22,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14256 states. [2018-07-24 14:16:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14256 to 14137. [2018-07-24 14:16:22,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14137 states. [2018-07-24 14:16:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14137 states to 14137 states and 18817 transitions. [2018-07-24 14:16:22,967 INFO L78 Accepts]: Start accepts. Automaton has 14137 states and 18817 transitions. Word has length 136 [2018-07-24 14:16:22,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:22,968 INFO L471 AbstractCegarLoop]: Abstraction has 14137 states and 18817 transitions. [2018-07-24 14:16:22,968 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:16:22,969 INFO L276 IsEmpty]: Start isEmpty. Operand 14137 states and 18817 transitions. [2018-07-24 14:16:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-24 14:16:22,973 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:22,973 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, 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] [2018-07-24 14:16:22,974 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash 606697909, now seen corresponding path program 1 times [2018-07-24 14:16:22,974 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:22,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:22,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:22,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:22,975 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:23,697 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:16:23,698 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:16:23,698 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:23,700 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:16:23,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:16:23,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:16:23,701 INFO L87 Difference]: Start difference. First operand 14137 states and 18817 transitions. Second operand 6 states. [2018-07-24 14:16:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:48,621 INFO L93 Difference]: Finished difference Result 57438 states and 86463 transitions. [2018-07-24 14:16:48,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 14:16:48,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-07-24 14:16:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:48,886 INFO L225 Difference]: With dead ends: 57438 [2018-07-24 14:16:48,887 INFO L226 Difference]: Without dead ends: 43307 [2018-07-24 14:16:49,022 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:16:49,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43307 states. [2018-07-24 14:16:49,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43307 to 43012. [2018-07-24 14:16:49,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43012 states. [2018-07-24 14:16:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43012 states to 43012 states and 57150 transitions. [2018-07-24 14:16:50,098 INFO L78 Accepts]: Start accepts. Automaton has 43012 states and 57150 transitions. Word has length 158 [2018-07-24 14:16:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:50,098 INFO L471 AbstractCegarLoop]: Abstraction has 43012 states and 57150 transitions. [2018-07-24 14:16:50,098 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:16:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 43012 states and 57150 transitions. [2018-07-24 14:16:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-24 14:16:50,103 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:50,104 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, 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] [2018-07-24 14:16:50,104 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:50,104 INFO L82 PathProgramCache]: Analyzing trace with hash -855087470, now seen corresponding path program 1 times [2018-07-24 14:16:50,104 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:50,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:50,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:50,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:50,107 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:50,681 WARN L169 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-07-24 14:16:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:50,766 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:50,766 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 14:16:50,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:50,774 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:50,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:51,519 WARN L169 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 20 [2018-07-24 14:16:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:51,684 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:51,931 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:16:51,931 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 14:16:51,931 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:51,932 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:16:51,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:16:51,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:16:51,933 INFO L87 Difference]: Start difference. First operand 43012 states and 57150 transitions. Second operand 3 states. [2018-07-24 14:17:03,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:03,320 INFO L93 Difference]: Finished difference Result 104385 states and 142291 transitions. [2018-07-24 14:17:03,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:17:03,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2018-07-24 14:17:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:03,546 INFO L225 Difference]: With dead ends: 104385 [2018-07-24 14:17:03,546 INFO L226 Difference]: Without dead ends: 61379 [2018-07-24 14:17:03,653 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:17:03,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61379 states. [2018-07-24 14:17:04,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61379 to 61359. [2018-07-24 14:17:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61359 states. [2018-07-24 14:17:05,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61359 states to 61359 states and 79838 transitions. [2018-07-24 14:17:05,567 INFO L78 Accepts]: Start accepts. Automaton has 61359 states and 79838 transitions. Word has length 201 [2018-07-24 14:17:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:05,570 INFO L471 AbstractCegarLoop]: Abstraction has 61359 states and 79838 transitions. [2018-07-24 14:17:05,570 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:05,570 INFO L276 IsEmpty]: Start isEmpty. Operand 61359 states and 79838 transitions. [2018-07-24 14:17:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-07-24 14:17:05,575 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:05,576 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, 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] [2018-07-24 14:17:05,576 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:05,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2125614826, now seen corresponding path program 1 times [2018-07-24 14:17:05,577 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:05,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:05,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:05,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:05,578 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:05,868 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:17:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:05,938 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:05,938 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:17:05,939 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:05,939 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:17:05,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:17:05,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:17:05,940 INFO L87 Difference]: Start difference. First operand 61359 states and 79838 transitions. Second operand 6 states. [2018-07-24 14:17:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:14,574 INFO L93 Difference]: Finished difference Result 144862 states and 208059 transitions. [2018-07-24 14:17:14,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:17:14,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-07-24 14:17:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:14,912 INFO L225 Difference]: With dead ends: 144862 [2018-07-24 14:17:14,912 INFO L226 Difference]: Without dead ends: 83509 [2018-07-24 14:17:15,076 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:17:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83509 states. [2018-07-24 14:17:17,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83509 to 83070. [2018-07-24 14:17:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83070 states. [2018-07-24 14:17:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83070 states to 83070 states and 113191 transitions. [2018-07-24 14:17:17,565 INFO L78 Accepts]: Start accepts. Automaton has 83070 states and 113191 transitions. Word has length 219 [2018-07-24 14:17:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:17,566 INFO L471 AbstractCegarLoop]: Abstraction has 83070 states and 113191 transitions. [2018-07-24 14:17:17,566 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:17:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 83070 states and 113191 transitions. [2018-07-24 14:17:17,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-24 14:17:17,574 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:17,574 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:17,574 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:17,575 INFO L82 PathProgramCache]: Analyzing trace with hash 341290721, now seen corresponding path program 1 times [2018-07-24 14:17:17,575 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:17,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:17,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:17,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:17,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:17,865 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:17:17,931 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 88 proven. 84 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:17:17,931 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:17,931 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 14:17:17,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:17,939 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:18,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-07-24 14:17:18,174 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 88 proven. 84 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:17:18,528 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:17:18,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 14:17:18,528 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:18,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:17:18,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:17:18,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:17:18,530 INFO L87 Difference]: Start difference. First operand 83070 states and 113191 transitions. Second operand 5 states. [2018-07-24 14:17:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:30,104 INFO L93 Difference]: Finished difference Result 191178 states and 270304 transitions. [2018-07-24 14:17:30,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:17:30,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2018-07-24 14:17:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:30,516 INFO L225 Difference]: With dead ends: 191178 [2018-07-24 14:17:30,516 INFO L226 Difference]: Without dead ends: 108114 [2018-07-24 14:17:30,732 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 517 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:17:30,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108114 states. [2018-07-24 14:17:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108114 to 108036. [2018-07-24 14:17:33,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108036 states. [2018-07-24 14:17:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108036 states to 108036 states and 143299 transitions. [2018-07-24 14:17:33,411 INFO L78 Accepts]: Start accepts. Automaton has 108036 states and 143299 transitions. Word has length 261 [2018-07-24 14:17:33,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:33,411 INFO L471 AbstractCegarLoop]: Abstraction has 108036 states and 143299 transitions. [2018-07-24 14:17:33,412 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:17:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 108036 states and 143299 transitions. [2018-07-24 14:17:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-07-24 14:17:33,419 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:33,420 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:33,420 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:33,420 INFO L82 PathProgramCache]: Analyzing trace with hash 918011809, now seen corresponding path program 1 times [2018-07-24 14:17:33,420 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:33,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:33,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:33,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:33,421 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:33,694 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:33,695 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:17:33,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:33,702 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:33,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:34,002 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:34,143 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:34,143 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:17:34,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:34,160 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:34,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:34,464 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:34,650 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:17:34,650 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 11 [2018-07-24 14:17:34,650 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:17:34,651 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 14:17:34,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 14:17:34,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:17:34,653 INFO L87 Difference]: Start difference. First operand 108036 states and 143299 transitions. Second operand 8 states. [2018-07-24 14:17:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:49,249 INFO L93 Difference]: Finished difference Result 234744 states and 316319 transitions. [2018-07-24 14:17:49,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 14:17:49,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 285 [2018-07-24 14:17:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:49,634 INFO L225 Difference]: With dead ends: 234744 [2018-07-24 14:17:49,634 INFO L226 Difference]: Without dead ends: 126714 [2018-07-24 14:17:49,841 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1150 GetRequests, 1132 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2018-07-24 14:17:49,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126714 states. [2018-07-24 14:17:52,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126714 to 125116. [2018-07-24 14:17:52,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125116 states. [2018-07-24 14:17:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125116 states to 125116 states and 161615 transitions. [2018-07-24 14:17:52,389 INFO L78 Accepts]: Start accepts. Automaton has 125116 states and 161615 transitions. Word has length 285 [2018-07-24 14:17:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:52,390 INFO L471 AbstractCegarLoop]: Abstraction has 125116 states and 161615 transitions. [2018-07-24 14:17:52,390 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 14:17:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 125116 states and 161615 transitions. [2018-07-24 14:17:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2018-07-24 14:17:52,405 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:52,405 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:52,405 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:52,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1089369579, now seen corresponding path program 1 times [2018-07-24 14:17:52,406 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:52,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:52,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:52,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:52,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:52,815 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:52,815 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) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:17:52,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:52,822 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:52,968 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:53,480 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:54,309 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:54,309 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 14:17:54,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:54,324 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:54,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:55,446 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:55,704 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:17:55,705 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 14:17:55,705 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:17:55,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:17:55,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:17:55,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:17:55,706 INFO L87 Difference]: Start difference. First operand 125116 states and 161615 transitions. Second operand 9 states. [2018-07-24 14:18:09,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:09,515 INFO L93 Difference]: Finished difference Result 291091 states and 414705 transitions. [2018-07-24 14:18:09,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 14:18:09,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 391 [2018-07-24 14:18:09,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:10,162 INFO L225 Difference]: With dead ends: 291091 [2018-07-24 14:18:10,162 INFO L226 Difference]: Without dead ends: 165981 [2018-07-24 14:18:10,534 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1579 GetRequests, 1558 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:18:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165981 states. [2018-07-24 14:18:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165981 to 164481. [2018-07-24 14:18:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164481 states. [2018-07-24 14:18:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164481 states to 164481 states and 214384 transitions. [2018-07-24 14:18:14,127 INFO L78 Accepts]: Start accepts. Automaton has 164481 states and 214384 transitions. Word has length 391 [2018-07-24 14:18:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:14,127 INFO L471 AbstractCegarLoop]: Abstraction has 164481 states and 214384 transitions. [2018-07-24 14:18:14,128 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:18:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand 164481 states and 214384 transitions. [2018-07-24 14:18:14,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2018-07-24 14:18:14,139 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:14,140 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:14,140 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:14,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1189143349, now seen corresponding path program 1 times [2018-07-24 14:18:14,141 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:14,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:14,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:14,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:14,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-07-24 14:18:14,510 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:14,510 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:18:14,510 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:14,511 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:18:14,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:18:14,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:18:14,513 INFO L87 Difference]: Start difference. First operand 164481 states and 214384 transitions. Second operand 4 states. [2018-07-24 14:18:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:30,821 INFO L93 Difference]: Finished difference Result 323627 states and 424785 transitions. [2018-07-24 14:18:30,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:18:30,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 407 [2018-07-24 14:18:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:31,221 INFO L225 Difference]: With dead ends: 323627 [2018-07-24 14:18:31,222 INFO L226 Difference]: Without dead ends: 159152 [2018-07-24 14:18:31,475 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:18:31,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159152 states. [2018-07-24 14:18:33,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159152 to 152111. [2018-07-24 14:18:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152111 states. [2018-07-24 14:18:34,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152111 states to 152111 states and 185182 transitions. [2018-07-24 14:18:34,173 INFO L78 Accepts]: Start accepts. Automaton has 152111 states and 185182 transitions. Word has length 407 [2018-07-24 14:18:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:34,174 INFO L471 AbstractCegarLoop]: Abstraction has 152111 states and 185182 transitions. [2018-07-24 14:18:34,174 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:18:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 152111 states and 185182 transitions. [2018-07-24 14:18:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-07-24 14:18:34,187 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:34,188 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:18:34,188 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:34,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1815580547, now seen corresponding path program 1 times [2018-07-24 14:18:34,188 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:34,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:34,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:34,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:34,190 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:34,724 WARN L169 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-07-24 14:18:35,142 WARN L169 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-24 14:18:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 132 proven. 213 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-07-24 14:18:35,524 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:35,524 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 14:18:35,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:35,532 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:35,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-07-24 14:18:35,892 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 132 proven. 213 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-07-24 14:18:36,758 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:18:36,758 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 14:18:36,759 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:36,759 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:18:36,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:18:36,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:18:36,760 INFO L87 Difference]: Start difference. First operand 152111 states and 185182 transitions. Second operand 5 states. [2018-07-24 14:18:47,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:47,013 INFO L93 Difference]: Finished difference Result 316416 states and 374765 transitions. [2018-07-24 14:18:47,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 14:18:47,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 432 [2018-07-24 14:18:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:47,341 INFO L225 Difference]: With dead ends: 316416 [2018-07-24 14:18:47,341 INFO L226 Difference]: Without dead ends: 164311 [2018-07-24 14:18:47,571 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 860 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-07-24 14:18:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164311 states. [2018-07-24 14:18:49,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164311 to 160976. [2018-07-24 14:18:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160976 states. [2018-07-24 14:18:50,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160976 states to 160976 states and 184371 transitions. [2018-07-24 14:18:50,053 INFO L78 Accepts]: Start accepts. Automaton has 160976 states and 184371 transitions. Word has length 432 [2018-07-24 14:18:50,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:50,054 INFO L471 AbstractCegarLoop]: Abstraction has 160976 states and 184371 transitions. [2018-07-24 14:18:50,054 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:18:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 160976 states and 184371 transitions. [2018-07-24 14:18:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2018-07-24 14:18:50,068 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:50,069 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:18:50,069 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:50,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1815306420, now seen corresponding path program 1 times [2018-07-24 14:18:50,069 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:50,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:50,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:50,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:50,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 417 proven. 69 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-07-24 14:18:50,822 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:50,822 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:18:51,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:51,588 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:51,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 572 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-07-24 14:18:51,977 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 417 proven. 69 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-07-24 14:18:52,249 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:52,249 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 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:18:52,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:52,268 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:52,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 572 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-07-24 14:18:52,820 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 417 proven. 69 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-07-24 14:18:53,134 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:18:53,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-07-24 14:18:53,135 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:18:53,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:18:53,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:18:53,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:18:53,136 INFO L87 Difference]: Start difference. First operand 160976 states and 184371 transitions. Second operand 9 states. [2018-07-24 14:19:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:12,497 INFO L93 Difference]: Finished difference Result 411196 states and 494668 transitions. [2018-07-24 14:19:12,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 14:19:12,498 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 504 [2018-07-24 14:19:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:13,255 INFO L225 Difference]: With dead ends: 411196 [2018-07-24 14:19:13,255 INFO L226 Difference]: Without dead ends: 250994 [2018-07-24 14:19:13,593 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2034 GetRequests, 2011 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2018-07-24 14:19:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250994 states. Received shutdown request... [2018-07-24 14:19:14,910 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:19:14,915 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:19:14,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:19:14 BoogieIcfgContainer [2018-07-24 14:19:14,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:19:14,917 INFO L168 Benchmark]: Toolchain (without parser) took 227316.97 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-07-24 14:19:14,918 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 14:19:14,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2604.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:19:14,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 271.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:19:14,921 INFO L168 Benchmark]: Boogie Preprocessor took 867.21 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 915.4 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 14:19:14,922 INFO L168 Benchmark]: RCFGBuilder took 10489.62 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 159.4 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -141.7 MB). Peak memory consumption was 728.5 MB. Max. memory is 7.1 GB. [2018-07-24 14:19:14,923 INFO L168 Benchmark]: TraceAbstraction took 213079.01 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.4 GB). Free memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: -661.1 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-07-24 14:19:14,928 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 2604.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 271.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 867.21 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 915.4 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10489.62 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 159.4 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -141.7 MB). Peak memory consumption was 728.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213079.01 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.4 GB). Free memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: -661.1 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 144). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 174.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5447 SDtfs, 36531 SDslu, 2367 SDs, 0 SdLazy, 71576 SolverSat, 16154 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 128.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6890 GetRequests, 6750 SyntacticMatches, 27 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164481occurred in iteration=10, 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: 21.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 14459 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 6674 NumberOfCodeBlocks, 6674 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 10022 ConstructedInterpolants, 47 QuantifiedInterpolants, 12371215 SizeOfPredicates, 12 NumberOfNonLiveVariables, 5616 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 33 InterpolantComputations, 12 PerfectInterpolantSequences, 7169/8045 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/Problem12_label59_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-19-14-945.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label59_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-19-14-945.csv Completed graceful shutdown