java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 16:33:18,575 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 16:33:18,578 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 16:33:18,590 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 16:33:18,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 16:33:18,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 16:33:18,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 16:33:18,595 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 16:33:18,597 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 16:33:18,597 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 16:33:18,598 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 16:33:18,599 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 16:33:18,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 16:33:18,600 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 16:33:18,603 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 16:33:18,606 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 16:33:18,608 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 16:33:18,613 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 16:33:18,615 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 16:33:18,622 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 16:33:18,623 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 16:33:18,624 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 16:33:18,631 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 16:33:18,631 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 16:33:18,631 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 16:33:18,635 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 16:33:18,636 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 16:33:18,636 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 16:33:18,637 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 16:33:18,638 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 16:33:18,638 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 16:33:18,639 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 16:33:18,639 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 16:33:18,644 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 16:33:18,646 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 16:33:18,646 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 16:33:18,648 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 16:33:18,672 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 16:33:18,672 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 16:33:18,673 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 16:33:18,673 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 16:33:18,673 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 16:33:18,674 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 16:33:18,674 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 16:33:18,674 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 16:33:18,674 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 16:33:18,674 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 16:33:18,675 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 16:33:18,675 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 16:33:18,676 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 16:33:18,676 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 16:33:18,676 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 16:33:18,676 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 16:33:18,676 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 16:33:18,677 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 16:33:18,677 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 16:33:18,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 16:33:18,677 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 16:33:18,677 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 16:33:18,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 16:33:18,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 16:33:18,678 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 16:33:18,678 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 16:33:18,678 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 16:33:18,679 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 16:33:18,679 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 16:33:18,679 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 16:33:18,679 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 16:33:18,679 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 16:33:18,680 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 16:33:18,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 16:33:18,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 16:33:18,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 16:33:18,781 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 16:33:18,781 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 16:33:18,782 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label49_true-unreach-call.c [2018-09-14 16:33:19,140 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3281cdca/a808efc82134426e81a527b48cd48178/FLAGc71c5a81d [2018-09-14 16:33:19,704 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 16:33:19,705 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label49_true-unreach-call.c [2018-09-14 16:33:19,764 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3281cdca/a808efc82134426e81a527b48cd48178/FLAGc71c5a81d [2018-09-14 16:33:19,784 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3281cdca/a808efc82134426e81a527b48cd48178 [2018-09-14 16:33:19,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 16:33:19,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 16:33:19,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 16:33:19,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 16:33:19,814 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 16:33:19,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:33:19" (1/1) ... [2018-09-14 16:33:19,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4c6457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:19, skipping insertion in model container [2018-09-14 16:33:19,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:33:19" (1/1) ... [2018-09-14 16:33:19,833 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 16:33:21,863 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:33:21,889 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 16:33:22,988 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:33:23,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23 WrapperNode [2018-09-14 16:33:23,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 16:33:23,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 16:33:23,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 16:33:23,226 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 16:33:23,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:23,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:23,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 16:33:23,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 16:33:23,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 16:33:23,644 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 16:33:24,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... [2018-09-14 16:33:24,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 16:33:24,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 16:33:24,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 16:33:24,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 16:33:24,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 16:33:24,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 16:33:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 16:33:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 16:33:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 16:33:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 16:33:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 16:33:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 16:33:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 16:33:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 16:33:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 16:33:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 16:33:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 16:33:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 16:33:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 16:33:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 16:33:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 16:33:36,531 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 16:33:36,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:33:36 BoogieIcfgContainer [2018-09-14 16:33:36,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 16:33:36,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 16:33:36,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 16:33:36,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 16:33:36,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 04:33:19" (1/3) ... [2018-09-14 16:33:36,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dc7113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:33:36, skipping insertion in model container [2018-09-14 16:33:36,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:33:23" (2/3) ... [2018-09-14 16:33:36,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dc7113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:33:36, skipping insertion in model container [2018-09-14 16:33:36,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:33:36" (3/3) ... [2018-09-14 16:33:36,539 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label49_true-unreach-call.c [2018-09-14 16:33:36,549 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 16:33:36,559 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 16:33:36,631 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 16:33:36,632 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 16:33:36,632 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 16:33:36,632 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 16:33:36,632 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 16:33:36,632 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 16:33:36,633 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 16:33:36,633 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 16:33:36,633 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 16:33:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states. [2018-09-14 16:33:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2018-09-14 16:33:36,766 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:33:36,768 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:33:36,769 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:33:36,775 INFO L82 PathProgramCache]: Analyzing trace with hash -519315369, now seen corresponding path program 1 times [2018-09-14 16:33:36,778 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:33:36,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:33:36,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:33:36,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:33:36,832 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:33:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:33:38,989 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:33:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:33:40,456 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:33:40,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 16:33:40,456 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:33:40,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:33:40,479 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:33:40,479 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:33:40,482 INFO L87 Difference]: Start difference. First operand 1316 states. Second operand 3 states. [2018-09-14 16:33:49,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:33:49,023 INFO L93 Difference]: Finished difference Result 3736 states and 7002 transitions. [2018-09-14 16:33:49,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:33:49,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1005 [2018-09-14 16:33:49,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:33:49,076 INFO L225 Difference]: With dead ends: 3736 [2018-09-14 16:33:49,076 INFO L226 Difference]: Without dead ends: 2418 [2018-09-14 16:33:49,089 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:33:49,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2018-09-14 16:33:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2366. [2018-09-14 16:33:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2366 states. [2018-09-14 16:33:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 4373 transitions. [2018-09-14 16:33:49,247 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 4373 transitions. Word has length 1005 [2018-09-14 16:33:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:33:49,250 INFO L480 AbstractCegarLoop]: Abstraction has 2366 states and 4373 transitions. [2018-09-14 16:33:49,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:33:49,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 4373 transitions. [2018-09-14 16:33:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2018-09-14 16:33:49,292 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:33:49,293 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:33:49,293 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:33:49,294 INFO L82 PathProgramCache]: Analyzing trace with hash 95472191, now seen corresponding path program 1 times [2018-09-14 16:33:49,294 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:33:49,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:33:49,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:33:49,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:33:49,296 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:33:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:33:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:33:51,636 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:33:51,636 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 16:33:51,637 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:33:51,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:33:51,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:33:51,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:33:51,641 INFO L87 Difference]: Start difference. First operand 2366 states and 4373 transitions. Second operand 3 states. [2018-09-14 16:34:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:34:01,048 INFO L93 Difference]: Finished difference Result 6831 states and 12833 transitions. [2018-09-14 16:34:01,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:34:01,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1018 [2018-09-14 16:34:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:34:01,079 INFO L225 Difference]: With dead ends: 6831 [2018-09-14 16:34:01,079 INFO L226 Difference]: Without dead ends: 4471 [2018-09-14 16:34:01,086 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:34:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4471 states. [2018-09-14 16:34:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4471 to 4456. [2018-09-14 16:34:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4456 states. [2018-09-14 16:34:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 7691 transitions. [2018-09-14 16:34:01,191 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 7691 transitions. Word has length 1018 [2018-09-14 16:34:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:34:01,194 INFO L480 AbstractCegarLoop]: Abstraction has 4456 states and 7691 transitions. [2018-09-14 16:34:01,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:34:01,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 7691 transitions. [2018-09-14 16:34:01,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2018-09-14 16:34:01,224 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:34:01,225 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:34:01,225 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:34:01,226 INFO L82 PathProgramCache]: Analyzing trace with hash -731965203, now seen corresponding path program 1 times [2018-09-14 16:34:01,226 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:34:01,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:34:01,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:34:01,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:34:01,228 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:34:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:34:01,730 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:34:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:34:02,398 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:34:02,399 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:34:02,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:34:02,413 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:34:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:34:03,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:34:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-14 16:34:04,491 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:34:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:34:05,119 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:34:05,120 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-14 16:34:05,120 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:34:05,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:34:05,122 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:34:05,122 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:34:05,122 INFO L87 Difference]: Start difference. First operand 4456 states and 7691 transitions. Second operand 5 states. [2018-09-14 16:34:06,205 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2018-09-14 16:34:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:34:18,505 INFO L93 Difference]: Finished difference Result 13241 states and 23431 transitions. [2018-09-14 16:34:18,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:34:18,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1038 [2018-09-14 16:34:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:34:18,555 INFO L225 Difference]: With dead ends: 13241 [2018-09-14 16:34:18,556 INFO L226 Difference]: Without dead ends: 8791 [2018-09-14 16:34:18,571 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2084 GetRequests, 2070 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-09-14 16:34:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8791 states. [2018-09-14 16:34:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8791 to 8656. [2018-09-14 16:34:18,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8656 states. [2018-09-14 16:34:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8656 states to 8656 states and 14421 transitions. [2018-09-14 16:34:18,874 INFO L78 Accepts]: Start accepts. Automaton has 8656 states and 14421 transitions. Word has length 1038 [2018-09-14 16:34:18,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:34:18,875 INFO L480 AbstractCegarLoop]: Abstraction has 8656 states and 14421 transitions. [2018-09-14 16:34:18,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:34:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8656 states and 14421 transitions. [2018-09-14 16:34:18,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2018-09-14 16:34:18,926 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:34:18,927 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:34:18,928 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:34:18,928 INFO L82 PathProgramCache]: Analyzing trace with hash 579144709, now seen corresponding path program 1 times [2018-09-14 16:34:18,928 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:34:18,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:34:18,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:34:18,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:34:18,930 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:34:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:34:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 43 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:34:20,801 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:34:20,801 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:34:20,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:34:20,820 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:34:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:34:21,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:34:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-14 16:34:22,548 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:34:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-14 16:34:23,741 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:34:23,741 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:34:23,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:34:23,763 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:34:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:34:24,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:34:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-14 16:34:26,369 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:34:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-14 16:34:27,952 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:34:27,953 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 5, 5] total 20 [2018-09-14 16:34:27,953 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:34:27,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-14 16:34:27,955 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-14 16:34:27,956 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2018-09-14 16:34:27,956 INFO L87 Difference]: Start difference. First operand 8656 states and 14421 transitions. Second operand 12 states. [2018-09-14 16:35:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:35:12,578 INFO L93 Difference]: Finished difference Result 85764 states and 174978 transitions. [2018-09-14 16:35:12,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-09-14 16:35:12,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1051 [2018-09-14 16:35:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:35:13,118 INFO L225 Difference]: With dead ends: 85764 [2018-09-14 16:35:13,118 INFO L226 Difference]: Without dead ends: 77114 [2018-09-14 16:35:13,235 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4294 GetRequests, 4234 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=635, Invalid=3025, Unknown=0, NotChecked=0, Total=3660 [2018-09-14 16:35:13,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77114 states. [2018-09-14 16:35:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77114 to 76739. [2018-09-14 16:35:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76739 states. [2018-09-14 16:35:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76739 states to 76739 states and 137643 transitions. [2018-09-14 16:35:16,031 INFO L78 Accepts]: Start accepts. Automaton has 76739 states and 137643 transitions. Word has length 1051 [2018-09-14 16:35:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:35:16,032 INFO L480 AbstractCegarLoop]: Abstraction has 76739 states and 137643 transitions. [2018-09-14 16:35:16,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-14 16:35:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 76739 states and 137643 transitions. [2018-09-14 16:35:16,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2018-09-14 16:35:16,491 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:35:16,492 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:35:16,493 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:35:16,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1544314324, now seen corresponding path program 1 times [2018-09-14 16:35:16,494 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:35:16,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:35:16,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:35:16,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:35:16,495 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:35:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:35:16,924 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:35:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:35:18,338 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:35:18,338 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:35:18,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:35:18,352 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:35:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:35:18,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:35:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-14 16:35:19,935 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:35:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:35:21,803 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:35:21,804 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:35:21,804 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:35:21,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:35:21,806 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:35:21,806 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:35:21,806 INFO L87 Difference]: Start difference. First operand 76739 states and 137643 transitions. Second operand 5 states. [2018-09-14 16:35:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:35:33,655 INFO L93 Difference]: Finished difference Result 232406 states and 507412 transitions. [2018-09-14 16:35:33,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:35:33,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1050 [2018-09-14 16:35:33,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:35:34,813 INFO L225 Difference]: With dead ends: 232406 [2018-09-14 16:35:34,813 INFO L226 Difference]: Without dead ends: 155673 [2018-09-14 16:35:35,039 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2109 GetRequests, 2094 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:35:35,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155673 states. [2018-09-14 16:35:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155673 to 154388. [2018-09-14 16:35:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154388 states. [2018-09-14 16:35:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154388 states to 154388 states and 304159 transitions. [2018-09-14 16:35:41,683 INFO L78 Accepts]: Start accepts. Automaton has 154388 states and 304159 transitions. Word has length 1050 [2018-09-14 16:35:41,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:35:41,683 INFO L480 AbstractCegarLoop]: Abstraction has 154388 states and 304159 transitions. [2018-09-14 16:35:41,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:35:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 154388 states and 304159 transitions. [2018-09-14 16:35:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2018-09-14 16:35:42,520 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:35:42,521 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:35:42,522 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:35:42,522 INFO L82 PathProgramCache]: Analyzing trace with hash -2016303037, now seen corresponding path program 1 times [2018-09-14 16:35:42,523 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:35:42,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:35:42,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:35:42,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:35:42,524 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:35:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:35:43,773 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:35:46,367 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-14 16:35:46,367 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:35:46,367 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:35:46,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:35:46,376 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:35:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:35:46,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:35:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:35:48,859 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:35:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:35:54,435 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:35:54,436 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-09-14 16:35:54,436 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:35:54,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:35:54,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:35:54,437 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-14 16:35:54,437 INFO L87 Difference]: Start difference. First operand 154388 states and 304159 transitions. Second operand 3 states. [2018-09-14 16:36:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:36:04,066 INFO L93 Difference]: Finished difference Result 384442 states and 795182 transitions. [2018-09-14 16:36:04,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:36:04,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1070 [2018-09-14 16:36:04,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:36:05,615 INFO L225 Difference]: With dead ends: 384442 [2018-09-14 16:36:05,615 INFO L226 Difference]: Without dead ends: 230060 [2018-09-14 16:36:05,992 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2150 GetRequests, 2134 SyntacticMatches, 13 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-14 16:36:06,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230060 states. [2018-09-14 16:36:12,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230060 to 229943. [2018-09-14 16:36:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229943 states. [2018-09-14 16:36:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229943 states to 229943 states and 449784 transitions. [2018-09-14 16:36:14,039 INFO L78 Accepts]: Start accepts. Automaton has 229943 states and 449784 transitions. Word has length 1070 [2018-09-14 16:36:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:36:14,040 INFO L480 AbstractCegarLoop]: Abstraction has 229943 states and 449784 transitions. [2018-09-14 16:36:14,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:36:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 229943 states and 449784 transitions. [2018-09-14 16:36:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2018-09-14 16:36:14,983 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:36:14,984 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:36:14,984 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:36:14,985 INFO L82 PathProgramCache]: Analyzing trace with hash 138560188, now seen corresponding path program 1 times [2018-09-14 16:36:14,985 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:36:14,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:36:14,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:36:14,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:36:14,986 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:36:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:36:15,747 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-14 16:36:16,061 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-14 16:36:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 127 proven. 48 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-14 16:36:18,305 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:36:18,305 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:36:18,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:36:18,314 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:36:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:36:18,813 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:36:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-09-14 16:36:25,212 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:36:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-09-14 16:36:26,254 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:36:26,255 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-14 16:36:26,255 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:36:26,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:36:26,256 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:36:26,256 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:36:26,256 INFO L87 Difference]: Start difference. First operand 229943 states and 449784 transitions. Second operand 3 states. [2018-09-14 16:36:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:36:39,310 INFO L93 Difference]: Finished difference Result 562400 states and 1189794 transitions. [2018-09-14 16:36:39,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:36:39,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1125 [2018-09-14 16:36:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:36:42,075 INFO L225 Difference]: With dead ends: 562400 [2018-09-14 16:36:42,076 INFO L226 Difference]: Without dead ends: 332463 [2018-09-14 16:36:42,661 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2256 GetRequests, 2244 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:36:42,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332463 states. Received shutdown request... [2018-09-14 16:36:43,711 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 16:36:43,717 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 16:36:43,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 04:36:43 BoogieIcfgContainer [2018-09-14 16:36:43,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 16:36:43,718 INFO L168 Benchmark]: Toolchain (without parser) took 203920.33 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -496.4 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-09-14 16:36:43,719 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 16:36:43,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3418.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 996.2 MB in the end (delta: 412.9 MB). Peak memory consumption was 412.9 MB. Max. memory is 7.1 GB. [2018-09-14 16:36:43,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 417.98 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 233.3 MB). Free memory was 996.2 MB in the beginning and 1.7 GB in the end (delta: -659.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2018-09-14 16:36:43,721 INFO L168 Benchmark]: Boogie Preprocessor took 1063.64 ms. Allocated memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: 495.5 MB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -458.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. [2018-09-14 16:36:43,722 INFO L168 Benchmark]: RCFGBuilder took 11823.74 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 415.2 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -157.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-14 16:36:43,723 INFO L168 Benchmark]: TraceAbstraction took 187184.63 ms. Allocated memory was 2.7 GB in the beginning and 5.0 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 364.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-14 16:36:43,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 3418.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 996.2 MB in the end (delta: 412.9 MB). Peak memory consumption was 412.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 417.98 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 233.3 MB). Free memory was 996.2 MB in the beginning and 1.7 GB in the end (delta: -659.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1063.64 ms. Allocated memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: 495.5 MB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -458.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11823.74 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 415.2 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -157.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 187184.63 ms. Allocated memory was 2.7 GB in the beginning and 5.0 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 364.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9462]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9462). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 1316 locations, 1 error locations. TIMEOUT Result, 187.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 117.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6426 SDtfs, 36019 SDslu, 4222 SDs, 0 SdLazy, 53882 SolverSat, 16948 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12910 GetRequests, 12785 SyntacticMatches, 34 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229943occurred in iteration=6, 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: 19.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 1979 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.2s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 13742 NumberOfCodeBlocks, 13742 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 20108 ConstructedInterpolants, 0 QuantifiedInterpolants, 39940440 SizeOfPredicates, 16 NumberOfNonLiveVariables, 14614 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 1196/1382 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/Problem06_label49_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_16-36-43-745.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem06_label49_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_16-36-43-745.csv Completed graceful shutdown