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/Problem13_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:17:16,717 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:17:16,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:17:16,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:17:16,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:17:16,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:17:16,733 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:17:16,735 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:17:16,737 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:17:16,738 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:17:16,739 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:17:16,739 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:17:16,740 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:17:16,741 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:17:16,742 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:17:16,743 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:17:16,743 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:17:16,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:17:16,747 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:17:16,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:17:16,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:17:16,751 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:17:16,754 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:17:16,754 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:17:16,754 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:17:16,755 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:17:16,756 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:17:16,757 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:17:16,758 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:17:16,759 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:17:16,759 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:17:16,760 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:17:16,760 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:17:16,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:17:16,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:17:16,762 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:17:16,762 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 14:17:16,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:17:16,777 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:17:16,778 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:17:16,778 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:17:16,779 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:17:16,779 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:17:16,779 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:17:16,779 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:17:16,779 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:17:16,780 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:17:16,780 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:17:16,781 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:17:16,781 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:17:16,781 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:17:16,781 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:17:16,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:17:16,782 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:17:16,782 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:17:16,782 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:17:16,782 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:17:16,782 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:17:16,783 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:17:16,783 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:17:16,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:17:16,783 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:17:16,783 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:17:16,784 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:17:16,784 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:17:16,784 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:17:16,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:17:16,784 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:17:16,785 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:17:16,785 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:17:16,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:17:16,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:17:16,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:17:16,880 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:17:16,881 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:17:16,882 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-07-24 14:17:17,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47dce9c73/6f314131668d48ac8c53d5b340583c28/FLAG284cf5c52 [2018-07-24 14:17:17,735 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:17:17,736 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-07-24 14:17:17,782 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47dce9c73/6f314131668d48ac8c53d5b340583c28/FLAG284cf5c52 [2018-07-24 14:17:17,807 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47dce9c73/6f314131668d48ac8c53d5b340583c28 [2018-07-24 14:17:17,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:17:17,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:17:17,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:17:17,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:17:17,838 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:17:17,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:17:17" (1/1) ... [2018-07-24 14:17:17,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a5721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:17, skipping insertion in model container [2018-07-24 14:17:17,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:17:17" (1/1) ... [2018-07-24 14:17:18,246 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:17:19,425 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:17:19,444 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:17:20,456 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:17:20,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20 WrapperNode [2018-07-24 14:17:20,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:17:20,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:17:20,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:17:20,860 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:17:20,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:20,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:21,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:17:21,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:17:21,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:17:21,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:17:22,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (1/1) ... [2018-07-24 14:17:22,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:17:22,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:17:22,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:17:22,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:17:22,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (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 14:17:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:17:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:17:22,517 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 14:17:22,517 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 14:17:22,517 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 14:17:22,517 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 14:17:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:17:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:17:22,518 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 14:17:22,518 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 14:17:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:17:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:17:22,519 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 14:17:22,519 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 14:17:36,316 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:17:36,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:17:36 BoogieIcfgContainer [2018-07-24 14:17:36,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:17:36,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:17:36,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:17:36,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:17:36,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:17:17" (1/3) ... [2018-07-24 14:17:36,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d50d769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:17:36, skipping insertion in model container [2018-07-24 14:17:36,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:20" (2/3) ... [2018-07-24 14:17:36,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d50d769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:17:36, skipping insertion in model container [2018-07-24 14:17:36,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:17:36" (3/3) ... [2018-07-24 14:17:36,324 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label13_true-unreach-call.c [2018-07-24 14:17:36,332 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:17:36,341 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:17:36,401 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:17:36,402 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:17:36,402 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:17:36,402 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:17:36,402 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:17:36,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:17:36,402 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:17:36,402 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:17:36,403 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:17:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:17:36,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-24 14:17:36,470 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:36,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:36,472 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 14:17:36,479 INFO L82 PathProgramCache]: Analyzing trace with hash -100649492, now seen corresponding path program 1 times [2018-07-24 14:17:36,482 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:36,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:36,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:36,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:36,537 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:36,988 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:17:37,096 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 14:17:37,099 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:37,099 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:17:37,100 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:37,106 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:17:37,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:17:37,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:37,127 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 14:17:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:49,422 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-07-24 14:17:49,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:17:49,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-07-24 14:17:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:49,462 INFO L225 Difference]: With dead ends: 3093 [2018-07-24 14:17:49,462 INFO L226 Difference]: Without dead ends: 1971 [2018-07-24 14:17:49,473 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 14:17:49,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-07-24 14:17:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-07-24 14:17:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-07-24 14:17:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-07-24 14:17:49,632 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 64 [2018-07-24 14:17:49,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:49,633 INFO L471 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-07-24 14:17:49,633 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-07-24 14:17:49,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-24 14:17:49,651 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:49,651 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, 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 14:17:49,652 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 14:17:49,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1481263410, now seen corresponding path program 1 times [2018-07-24 14:17:49,652 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:49,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:49,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:49,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:49,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:50,266 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:50,266 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 14:17:50,266 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:50,268 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 14:17:50,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 14:17:50,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:17:50,269 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 7 states. [2018-07-24 14:18:18,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:18,304 INFO L93 Difference]: Finished difference Result 7403 states and 13855 transitions. [2018-07-24 14:18:18,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 14:18:18,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2018-07-24 14:18:18,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:18,352 INFO L225 Difference]: With dead ends: 7403 [2018-07-24 14:18:18,353 INFO L226 Difference]: Without dead ends: 5452 [2018-07-24 14:18:18,364 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:18:18,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5452 states. [2018-07-24 14:18:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5452 to 5389. [2018-07-24 14:18:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5389 states. [2018-07-24 14:18:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 8260 transitions. [2018-07-24 14:18:18,664 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 8260 transitions. Word has length 147 [2018-07-24 14:18:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:18,665 INFO L471 AbstractCegarLoop]: Abstraction has 5389 states and 8260 transitions. [2018-07-24 14:18:18,665 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 14:18:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 8260 transitions. [2018-07-24 14:18:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-24 14:18:18,680 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:18,680 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, 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 14:18:18,680 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 14:18:18,680 INFO L82 PathProgramCache]: Analyzing trace with hash 830443648, now seen corresponding path program 1 times [2018-07-24 14:18:18,681 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:18,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:18,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:18,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:18,682 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:18:18,905 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:18,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:18:18,906 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:18,906 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:18:18,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:18:18,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:18:18,907 INFO L87 Difference]: Start difference. First operand 5389 states and 8260 transitions. Second operand 5 states. [2018-07-24 14:18:37,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:37,139 INFO L93 Difference]: Finished difference Result 15825 states and 25193 transitions. [2018-07-24 14:18:37,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:18:37,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2018-07-24 14:18:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:37,189 INFO L225 Difference]: With dead ends: 15825 [2018-07-24 14:18:37,189 INFO L226 Difference]: Without dead ends: 10442 [2018-07-24 14:18:37,217 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:18:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10442 states. [2018-07-24 14:18:37,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10442 to 10433. [2018-07-24 14:18:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10433 states. [2018-07-24 14:18:37,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10433 states to 10433 states and 15591 transitions. [2018-07-24 14:18:37,493 INFO L78 Accepts]: Start accepts. Automaton has 10433 states and 15591 transitions. Word has length 154 [2018-07-24 14:18:37,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:37,493 INFO L471 AbstractCegarLoop]: Abstraction has 10433 states and 15591 transitions. [2018-07-24 14:18:37,494 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:18:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand 10433 states and 15591 transitions. [2018-07-24 14:18:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-24 14:18:37,499 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:37,503 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, 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] [2018-07-24 14:18:37,503 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 14:18:37,504 INFO L82 PathProgramCache]: Analyzing trace with hash -991517960, now seen corresponding path program 1 times [2018-07-24 14:18:37,504 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:37,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:37,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:37,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:37,505 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:37,803 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:18:38,012 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:18:38,013 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:38,013 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:18:38,013 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:38,014 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:18:38,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:18:38,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:18:38,015 INFO L87 Difference]: Start difference. First operand 10433 states and 15591 transitions. Second operand 6 states. [2018-07-24 14:18:50,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:50,347 INFO L93 Difference]: Finished difference Result 29752 states and 47957 transitions. [2018-07-24 14:18:50,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:18:50,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-07-24 14:18:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:50,443 INFO L225 Difference]: With dead ends: 29752 [2018-07-24 14:18:50,443 INFO L226 Difference]: Without dead ends: 19325 [2018-07-24 14:18:50,487 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 14:18:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2018-07-24 14:18:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 19186. [2018-07-24 14:18:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19186 states. [2018-07-24 14:18:50,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19186 states to 19186 states and 28218 transitions. [2018-07-24 14:18:50,970 INFO L78 Accepts]: Start accepts. Automaton has 19186 states and 28218 transitions. Word has length 174 [2018-07-24 14:18:50,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:50,971 INFO L471 AbstractCegarLoop]: Abstraction has 19186 states and 28218 transitions. [2018-07-24 14:18:50,971 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:18:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 19186 states and 28218 transitions. [2018-07-24 14:18:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-24 14:18:50,981 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:50,982 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, 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, 1, 1, 1, 1, 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 14:18:50,982 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 14:18:50,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1104518048, now seen corresponding path program 1 times [2018-07-24 14:18:50,982 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:50,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:50,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:50,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:50,984 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:51,260 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:18:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 114 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:18:51,554 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:51,554 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 14:18:51,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:51,564 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:51,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-07-24 14:18:52,070 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 114 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:18:52,500 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:18:52,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-07-24 14:18:52,500 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:52,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:18:52,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:18:52,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:18:52,502 INFO L87 Difference]: Start difference. First operand 19186 states and 28218 transitions. Second operand 5 states. [2018-07-24 14:19:09,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:09,909 INFO L93 Difference]: Finished difference Result 55507 states and 87002 transitions. [2018-07-24 14:19:09,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:19:09,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2018-07-24 14:19:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:10,130 INFO L225 Difference]: With dead ends: 55507 [2018-07-24 14:19:10,131 INFO L226 Difference]: Without dead ends: 36327 [2018-07-24 14:19:10,260 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 471 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:19:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36327 states. [2018-07-24 14:19:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36327 to 35973. [2018-07-24 14:19:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35973 states. [2018-07-24 14:19:11,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35973 states to 35973 states and 50928 transitions. [2018-07-24 14:19:11,583 INFO L78 Accepts]: Start accepts. Automaton has 35973 states and 50928 transitions. Word has length 238 [2018-07-24 14:19:11,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:11,583 INFO L471 AbstractCegarLoop]: Abstraction has 35973 states and 50928 transitions. [2018-07-24 14:19:11,583 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:19:11,583 INFO L276 IsEmpty]: Start isEmpty. Operand 35973 states and 50928 transitions. [2018-07-24 14:19:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-07-24 14:19:11,601 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:11,601 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:11,602 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 14:19:11,602 INFO L82 PathProgramCache]: Analyzing trace with hash -2097067490, now seen corresponding path program 1 times [2018-07-24 14:19:11,602 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:11,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:11,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:11,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:11,603 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 191 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:19:12,799 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:12,799 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 14:19:12,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:12,810 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:12,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:13,010 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:13,141 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:19:13,141 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-07-24 14:19:13,141 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:13,142 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:19:13,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:19:13,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:19:13,143 INFO L87 Difference]: Start difference. First operand 35973 states and 50928 transitions. Second operand 3 states. [2018-07-24 14:19:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:20,772 INFO L93 Difference]: Finished difference Result 76009 states and 108439 transitions. [2018-07-24 14:19:20,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:19:20,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2018-07-24 14:19:20,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:20,910 INFO L225 Difference]: With dead ends: 76009 [2018-07-24 14:19:20,910 INFO L226 Difference]: Without dead ends: 40042 [2018-07-24 14:19:20,989 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 549 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:19:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40042 states. [2018-07-24 14:19:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40042 to 40028. [2018-07-24 14:19:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40028 states. [2018-07-24 14:19:21,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40028 states to 40028 states and 52291 transitions. [2018-07-24 14:19:21,681 INFO L78 Accepts]: Start accepts. Automaton has 40028 states and 52291 transitions. Word has length 275 [2018-07-24 14:19:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:21,683 INFO L471 AbstractCegarLoop]: Abstraction has 40028 states and 52291 transitions. [2018-07-24 14:19:21,683 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:19:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 40028 states and 52291 transitions. [2018-07-24 14:19:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-07-24 14:19:21,708 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:21,709 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, 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, 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] [2018-07-24 14:19:21,709 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 14:19:21,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1507674492, now seen corresponding path program 1 times [2018-07-24 14:19:21,710 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:21,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:21,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:21,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:21,711 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 253 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-24 14:19:22,178 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:22,179 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 14:19:22,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:22,186 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:22,326 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-07-24 14:19:22,445 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 253 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-24 14:19:22,649 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:22,649 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:19:22,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:22,666 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:22,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-07-24 14:19:23,117 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 253 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (5)] Exception during sending of exit command (exit): Broken pipe [2018-07-24 14:19:23,433 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:19:23,433 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 14:19:23,434 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:19:23,435 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:19:23,435 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:19:23,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:19:23,437 INFO L87 Difference]: Start difference. First operand 40028 states and 52291 transitions. Second operand 9 states. [2018-07-24 14:19:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:42,609 INFO L93 Difference]: Finished difference Result 103362 states and 162998 transitions. [2018-07-24 14:19:42,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 14:19:42,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 347 [2018-07-24 14:19:42,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:42,938 INFO L225 Difference]: With dead ends: 103362 [2018-07-24 14:19:42,938 INFO L226 Difference]: Without dead ends: 63340 [2018-07-24 14:19:43,063 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1410 GetRequests, 1387 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-07-24 14:19:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63340 states. [2018-07-24 14:19:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63340 to 62970. [2018-07-24 14:19:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62970 states. [2018-07-24 14:19:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62970 states to 62970 states and 92540 transitions. [2018-07-24 14:19:44,653 INFO L78 Accepts]: Start accepts. Automaton has 62970 states and 92540 transitions. Word has length 347 [2018-07-24 14:19:44,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:44,654 INFO L471 AbstractCegarLoop]: Abstraction has 62970 states and 92540 transitions. [2018-07-24 14:19:44,654 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:19:44,654 INFO L276 IsEmpty]: Start isEmpty. Operand 62970 states and 92540 transitions. [2018-07-24 14:19:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-07-24 14:19:44,705 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:44,706 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, 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, 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] [2018-07-24 14:19:44,706 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 14:19:44,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1863769152, now seen corresponding path program 1 times [2018-07-24 14:19:44,706 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:44,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:44,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:44,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:44,707 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:45,794 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:45,794 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:19:45,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:45,803 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:45,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:46,447 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:47,035 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:47,035 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:19:47,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:47,052 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:47,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:47,527 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:19:47,670 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:19:47,671 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-07-24 14:19:47,671 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:19:47,671 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:19:47,672 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:19:47,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-07-24 14:19:47,672 INFO L87 Difference]: Start difference. First operand 62970 states and 92540 transitions. Second operand 9 states. [2018-07-24 14:20:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:23,015 INFO L93 Difference]: Finished difference Result 199202 states and 359612 transitions. [2018-07-24 14:20:23,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-24 14:20:23,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 358 [2018-07-24 14:20:23,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:23,656 INFO L225 Difference]: With dead ends: 199202 [2018-07-24 14:20:23,657 INFO L226 Difference]: Without dead ends: 135430 [2018-07-24 14:20:23,922 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1494 GetRequests, 1450 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2018-07-24 14:20:24,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135430 states. [2018-07-24 14:20:26,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135430 to 133984. [2018-07-24 14:20:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133984 states. [2018-07-24 14:20:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133984 states to 133984 states and 175560 transitions. [2018-07-24 14:20:27,117 INFO L78 Accepts]: Start accepts. Automaton has 133984 states and 175560 transitions. Word has length 358 [2018-07-24 14:20:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:27,118 INFO L471 AbstractCegarLoop]: Abstraction has 133984 states and 175560 transitions. [2018-07-24 14:20:27,118 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:20:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 133984 states and 175560 transitions. [2018-07-24 14:20:27,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-07-24 14:20:27,171 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:27,172 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:27,172 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 14:20:27,172 INFO L82 PathProgramCache]: Analyzing trace with hash -955481493, now seen corresponding path program 1 times [2018-07-24 14:20:27,172 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:27,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:27,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:27,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:27,174 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:27,706 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:27,706 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:20:27,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:27,715 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:27,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:27,972 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:28,274 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:28,274 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:20:29,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:29,209 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:29,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:29,633 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:29,885 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:20:29,886 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 14:20:29,886 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:20:29,887 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:20:29,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:20:29,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:20:29,887 INFO L87 Difference]: Start difference. First operand 133984 states and 175560 transitions. Second operand 9 states. [2018-07-24 14:20:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:42,446 INFO L93 Difference]: Finished difference Result 246731 states and 340863 transitions. [2018-07-24 14:20:42,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 14:20:42,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 379 [2018-07-24 14:20:42,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:42,862 INFO L225 Difference]: With dead ends: 246731 [2018-07-24 14:20:42,862 INFO L226 Difference]: Without dead ends: 132105 [2018-07-24 14:20:43,068 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1529 GetRequests, 1509 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:20:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132105 states. [2018-07-24 14:20:45,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132105 to 131429. [2018-07-24 14:20:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131429 states. [2018-07-24 14:20:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131429 states to 131429 states and 164328 transitions. [2018-07-24 14:20:45,914 INFO L78 Accepts]: Start accepts. Automaton has 131429 states and 164328 transitions. Word has length 379 [2018-07-24 14:20:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:45,915 INFO L471 AbstractCegarLoop]: Abstraction has 131429 states and 164328 transitions. [2018-07-24 14:20:45,915 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:20:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 131429 states and 164328 transitions. [2018-07-24 14:20:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-07-24 14:20:45,947 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:45,947 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:45,948 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 14:20:45,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1056152729, now seen corresponding path program 1 times [2018-07-24 14:20:45,948 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:45,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:45,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:45,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:45,949 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 14:20:46,544 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:46,544 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:20:46,544 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:46,545 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:20:46,545 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:20:46,545 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:20:46,546 INFO L87 Difference]: Start difference. First operand 131429 states and 164328 transitions. Second operand 5 states. [2018-07-24 14:21:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:05,709 INFO L93 Difference]: Finished difference Result 320855 states and 413650 transitions. [2018-07-24 14:21:05,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 14:21:05,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 414 [2018-07-24 14:21:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:06,294 INFO L225 Difference]: With dead ends: 320855 [2018-07-24 14:21:06,294 INFO L226 Difference]: Without dead ends: 210431 [2018-07-24 14:21:06,458 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:21:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210431 states. Received shutdown request... [2018-07-24 14:21:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210431 to 208006. [2018-07-24 14:21:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208006 states. [2018-07-24 14:21:09,497 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:21:09,502 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:21:09,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:21:09 BoogieIcfgContainer [2018-07-24 14:21:09,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:21:09,504 INFO L168 Benchmark]: Toolchain (without parser) took 231682.12 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -173.4 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-24 14:21:09,505 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:21:09,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3032.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 349.8 MB). Peak memory consumption was 349.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:21:09,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 364.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:21:09,507 INFO L168 Benchmark]: Boogie Preprocessor took 1215.10 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:21:09,511 INFO L168 Benchmark]: RCFGBuilder took 13877.58 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 149.9 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 93.6 MB). Peak memory consumption was 741.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:21:09,512 INFO L168 Benchmark]: TraceAbstraction took 213185.58 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-07-24 14:21:09,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3032.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 349.8 MB). Peak memory consumption was 349.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 364.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1215.10 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13877.58 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 149.9 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 93.6 MB). Peak memory consumption was 741.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213185.58 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 213.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 185.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5839 SDtfs, 49436 SDslu, 6200 SDs, 0 SdLazy, 76860 SolverSat, 20292 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 151.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5518 GetRequests, 5379 SyntacticMatches, 17 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133984occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 13.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 3085 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 5231 NumberOfCodeBlocks, 5231 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 7886 ConstructedInterpolants, 0 QuantifiedInterpolants, 6636177 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4611 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 6467/6884 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/Problem13_label13_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-21-09-540.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label13_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-21-09-540.csv Completed graceful shutdown