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/Problem12_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:25:50,731 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:25:50,733 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:25:50,747 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:25:50,748 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:25:50,749 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:25:50,750 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:25:50,752 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:25:50,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:25:50,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:25:50,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:25:50,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:25:50,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:25:50,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:25:50,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:25:50,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:25:50,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:25:50,762 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:25:50,764 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:25:50,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:25:50,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:25:50,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:25:50,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:25:50,770 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:25:50,770 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:25:50,771 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:25:50,772 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:25:50,773 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:25:50,774 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:25:50,775 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:25:50,776 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:25:50,776 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:25:50,777 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:25:50,777 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:25:50,778 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:25:50,779 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:25:50,779 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 17:25:50,797 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:25:50,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:25:50,798 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:25:50,799 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:25:50,799 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:25:50,799 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:25:50,799 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:25:50,799 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:25:50,800 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:25:50,800 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:25:50,800 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:25:50,800 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:25:50,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:25:50,801 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:25:50,801 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:25:50,801 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:25:50,801 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:25:50,802 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:25:50,802 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:25:50,802 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:25:50,802 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:25:50,802 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:25:50,803 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:25:50,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:25:50,803 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:25:50,804 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:25:50,805 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:25:50,805 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:25:50,805 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:25:50,805 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:25:50,806 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:25:50,806 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:25:50,806 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:25:50,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:25:50,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:25:50,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:25:50,892 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:25:50,893 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:25:50,893 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label54_true-unreach-call.c [2018-09-14 17:25:51,252 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafcecf12/217a2a002f51480fa7ecd84790ac05a7/FLAGf6cd3711b [2018-09-14 17:25:51,701 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:25:51,702 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label54_true-unreach-call.c [2018-09-14 17:25:51,730 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafcecf12/217a2a002f51480fa7ecd84790ac05a7/FLAGf6cd3711b [2018-09-14 17:25:51,747 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafcecf12/217a2a002f51480fa7ecd84790ac05a7 [2018-09-14 17:25:51,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:25:51,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:25:51,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:25:51,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:25:51,772 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:25:51,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:25:51" (1/1) ... [2018-09-14 17:25:51,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca53d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:51, skipping insertion in model container [2018-09-14 17:25:51,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:25:51" (1/1) ... [2018-09-14 17:25:51,789 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:25:53,097 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:25:53,117 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:25:53,739 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:25:53,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53 WrapperNode [2018-09-14 17:25:53,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:25:53,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:25:53,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:25:53,994 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:25:54,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:54,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:54,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:25:54,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:25:54,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:25:54,279 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:25:54,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:54,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:54,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:54,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:55,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:55,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:55,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (1/1) ... [2018-09-14 17:25:55,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:25:55,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:25:55,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:25:55,343 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:25:55,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (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 17:25:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:25:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:25:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:25:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:25:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:25:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:25:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:25:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:25:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:25:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:25:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:25:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:25:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:25:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:26:07,079 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:26:07,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:26:07 BoogieIcfgContainer [2018-09-14 17:26:07,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:26:07,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:26:07,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:26:07,086 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:26:07,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:25:51" (1/3) ... [2018-09-14 17:26:07,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f0535f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:26:07, skipping insertion in model container [2018-09-14 17:26:07,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:25:53" (2/3) ... [2018-09-14 17:26:07,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f0535f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:26:07, skipping insertion in model container [2018-09-14 17:26:07,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:26:07" (3/3) ... [2018-09-14 17:26:07,091 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label54_true-unreach-call.c [2018-09-14 17:26:07,101 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:26:07,115 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:26:07,191 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:26:07,191 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:26:07,192 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:26:07,192 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:26:07,192 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:26:07,192 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:26:07,192 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:26:07,193 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:26:07,193 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:26:07,230 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-14 17:26:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-14 17:26:07,239 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:26:07,240 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] [2018-09-14 17:26:07,241 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:26:07,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2139876300, now seen corresponding path program 1 times [2018-09-14 17:26:07,250 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:26:07,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:07,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:26:07,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:07,307 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:26:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:26:07,748 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:26:07,844 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 17:26:07,846 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:26:07,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:26:07,846 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:26:07,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:26:07,867 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:26:07,868 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:26:07,871 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-09-14 17:26:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:26:19,606 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-09-14 17:26:19,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:26:19,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-09-14 17:26:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:26:19,655 INFO L225 Difference]: With dead ends: 2446 [2018-09-14 17:26:19,656 INFO L226 Difference]: Without dead ends: 1604 [2018-09-14 17:26:19,673 INFO L604 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 [2018-09-14 17:26:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-09-14 17:26:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-09-14 17:26:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-14 17:26:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-09-14 17:26:19,887 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 40 [2018-09-14 17:26:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:26:19,888 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-09-14 17:26:19,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:26:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-09-14 17:26:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-14 17:26:19,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:26:19,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:26:19,901 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:26:19,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1482898002, now seen corresponding path program 1 times [2018-09-14 17:26:19,901 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:26:19,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:19,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:26:19,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:19,905 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:26:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:26:20,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:26:20,243 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:26:20,243 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:26:20,243 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:26:20,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:26:20,246 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:26:20,246 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:26:20,246 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-09-14 17:26:34,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:26:34,421 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-09-14 17:26:34,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:26:34,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-09-14 17:26:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:26:34,449 INFO L225 Difference]: With dead ends: 4818 [2018-09-14 17:26:34,449 INFO L226 Difference]: Without dead ends: 3220 [2018-09-14 17:26:34,455 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:26:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-09-14 17:26:34,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-09-14 17:26:34,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-09-14 17:26:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-09-14 17:26:34,552 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 114 [2018-09-14 17:26:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:26:34,553 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-09-14 17:26:34,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:26:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-09-14 17:26:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-09-14 17:26:34,557 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:26:34,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:26:34,559 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:26:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1633492773, now seen corresponding path program 1 times [2018-09-14 17:26:34,559 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:26:34,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:34,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:26:34,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:34,561 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:26:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:26:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:26:34,849 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:26:34,849 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:26:34,849 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:26:34,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:26:34,850 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:26:34,850 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:26:34,851 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-09-14 17:26:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:26:47,667 INFO L93 Difference]: Finished difference Result 11148 states and 19850 transitions. [2018-09-14 17:26:47,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:26:47,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-09-14 17:26:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:26:47,716 INFO L225 Difference]: With dead ends: 11148 [2018-09-14 17:26:47,716 INFO L226 Difference]: Without dead ends: 7968 [2018-09-14 17:26:47,732 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:26:47,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2018-09-14 17:26:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7924. [2018-09-14 17:26:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7924 states. [2018-09-14 17:26:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13424 transitions. [2018-09-14 17:26:47,932 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 13424 transitions. Word has length 119 [2018-09-14 17:26:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:26:47,934 INFO L480 AbstractCegarLoop]: Abstraction has 7924 states and 13424 transitions. [2018-09-14 17:26:47,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:26:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 13424 transitions. [2018-09-14 17:26:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-14 17:26:47,937 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:26:47,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:26:47,938 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:26:47,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1525604427, now seen corresponding path program 1 times [2018-09-14 17:26:47,938 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:26:47,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:47,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:26:47,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:47,945 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:26:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:26:48,220 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:26:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:26:48,384 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:26:48,385 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:26:48,385 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:26:48,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:26:48,386 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:26:48,386 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:26:48,386 INFO L87 Difference]: Start difference. First operand 7924 states and 13424 transitions. Second operand 6 states. [2018-09-14 17:26:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:26:58,005 INFO L93 Difference]: Finished difference Result 22224 states and 38004 transitions. [2018-09-14 17:26:58,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:26:58,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-09-14 17:26:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:26:58,094 INFO L225 Difference]: With dead ends: 22224 [2018-09-14 17:26:58,094 INFO L226 Difference]: Without dead ends: 14306 [2018-09-14 17:26:58,132 INFO L604 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 [2018-09-14 17:26:58,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2018-09-14 17:26:58,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 14219. [2018-09-14 17:26:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-09-14 17:26:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 21550 transitions. [2018-09-14 17:26:58,469 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 21550 transitions. Word has length 127 [2018-09-14 17:26:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:26:58,470 INFO L480 AbstractCegarLoop]: Abstraction has 14219 states and 21550 transitions. [2018-09-14 17:26:58,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:26:58,470 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 21550 transitions. [2018-09-14 17:26:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-09-14 17:26:58,474 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:26:58,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:26:58,474 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:26:58,475 INFO L82 PathProgramCache]: Analyzing trace with hash -654123146, now seen corresponding path program 1 times [2018-09-14 17:26:58,475 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:26:58,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:58,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:26:58,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:26:58,476 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:26:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:26:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:26:58,956 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:26:58,956 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:26:58,956 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:26:58,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:26:58,957 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:26:58,958 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:26:58,958 INFO L87 Difference]: Start difference. First operand 14219 states and 21550 transitions. Second operand 6 states. [2018-09-14 17:27:25,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:27:25,960 INFO L93 Difference]: Finished difference Result 56456 states and 95980 transitions. [2018-09-14 17:27:25,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-14 17:27:25,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-09-14 17:27:25,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:27:26,195 INFO L225 Difference]: With dead ends: 56456 [2018-09-14 17:27:26,196 INFO L226 Difference]: Without dead ends: 42243 [2018-09-14 17:27:26,299 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:27:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42243 states. [2018-09-14 17:27:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42243 to 42003. [2018-09-14 17:27:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42003 states. [2018-09-14 17:27:27,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42003 states to 42003 states and 62984 transitions. [2018-09-14 17:27:27,423 INFO L78 Accepts]: Start accepts. Automaton has 42003 states and 62984 transitions. Word has length 144 [2018-09-14 17:27:27,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:27:27,424 INFO L480 AbstractCegarLoop]: Abstraction has 42003 states and 62984 transitions. [2018-09-14 17:27:27,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:27:27,424 INFO L276 IsEmpty]: Start isEmpty. Operand 42003 states and 62984 transitions. [2018-09-14 17:27:27,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-09-14 17:27:27,429 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:27:27,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:27,430 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:27:27,430 INFO L82 PathProgramCache]: Analyzing trace with hash -271525473, now seen corresponding path program 1 times [2018-09-14 17:27:27,431 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:27:27,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:27,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:27,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:27,432 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:27:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:27,709 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:27:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:27:28,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:27:28,105 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:27:28,105 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:27:28,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:27:28,106 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:27:28,106 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:27:28,107 INFO L87 Difference]: Start difference. First operand 42003 states and 62984 transitions. Second operand 6 states. [2018-09-14 17:27:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:27:40,467 INFO L93 Difference]: Finished difference Result 104625 states and 165922 transitions. [2018-09-14 17:27:40,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:27:40,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-09-14 17:27:40,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:27:40,731 INFO L225 Difference]: With dead ends: 104625 [2018-09-14 17:27:40,731 INFO L226 Difference]: Without dead ends: 62628 [2018-09-14 17:27:41,563 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:27:41,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62628 states. [2018-09-14 17:27:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62628 to 62383. [2018-09-14 17:27:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62383 states. [2018-09-14 17:27:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62383 states to 62383 states and 87807 transitions. [2018-09-14 17:27:42,796 INFO L78 Accepts]: Start accepts. Automaton has 62383 states and 87807 transitions. Word has length 165 [2018-09-14 17:27:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:27:42,796 INFO L480 AbstractCegarLoop]: Abstraction has 62383 states and 87807 transitions. [2018-09-14 17:27:42,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:27:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 62383 states and 87807 transitions. [2018-09-14 17:27:42,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-14 17:27:42,809 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:27:42,809 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:27:42,810 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:27:42,810 INFO L82 PathProgramCache]: Analyzing trace with hash 708461889, now seen corresponding path program 1 times [2018-09-14 17:27:42,810 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:27:42,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:42,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:42,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:42,811 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:27:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 66 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:27:43,054 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:27:43,055 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 17:27:43,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:43,072 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:27:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:43,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:27:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-09-14 17:27:43,406 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:27:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 66 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:27:43,927 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:27:43,928 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-14 17:27:43,928 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:27:43,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:27:43,929 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:27:43,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:27:43,930 INFO L87 Difference]: Start difference. First operand 62383 states and 87807 transitions. Second operand 5 states. [2018-09-14 17:27:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:27:55,150 INFO L93 Difference]: Finished difference Result 181178 states and 270886 transitions. [2018-09-14 17:27:55,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:27:55,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2018-09-14 17:27:55,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:27:55,859 INFO L225 Difference]: With dead ends: 181178 [2018-09-14 17:27:55,859 INFO L226 Difference]: Without dead ends: 118801 [2018-09-14 17:27:56,192 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:27:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118801 states. [2018-09-14 17:27:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118801 to 116036. [2018-09-14 17:27:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116036 states. [2018-09-14 17:28:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116036 states to 116036 states and 161011 transitions. [2018-09-14 17:28:00,137 INFO L78 Accepts]: Start accepts. Automaton has 116036 states and 161011 transitions. Word has length 199 [2018-09-14 17:28:00,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:28:00,137 INFO L480 AbstractCegarLoop]: Abstraction has 116036 states and 161011 transitions. [2018-09-14 17:28:00,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:28:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 116036 states and 161011 transitions. [2018-09-14 17:28:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-09-14 17:28:00,144 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:28:00,144 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:28:00,145 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:28:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1404633533, now seen corresponding path program 1 times [2018-09-14 17:28:00,145 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:28:00,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:00,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:00,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:00,147 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:28:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:00,696 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:28:00,696 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 17:28:00,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:00,713 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:28:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:00,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:28:01,222 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:01,222 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:28:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:01,857 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:28:01,858 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 17:28:01,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:01,874 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:28:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:02,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:28:02,203 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:02,203 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:28:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:02,517 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:28:02,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:28:02,517 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:28:02,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:28:02,519 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:28:02,519 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:28:02,519 INFO L87 Difference]: Start difference. First operand 116036 states and 161011 transitions. Second operand 9 states. [2018-09-14 17:28:23,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:23,216 INFO L93 Difference]: Finished difference Result 265846 states and 448323 transitions. [2018-09-14 17:28:23,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-14 17:28:23,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-09-14 17:28:23,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:24,153 INFO L225 Difference]: With dead ends: 265846 [2018-09-14 17:28:24,154 INFO L226 Difference]: Without dead ends: 127446 [2018-09-14 17:28:24,450 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 964 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-09-14 17:28:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127446 states. [2018-09-14 17:28:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127446 to 125316. [2018-09-14 17:28:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125316 states. [2018-09-14 17:28:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125316 states to 125316 states and 189874 transitions. [2018-09-14 17:28:29,796 INFO L78 Accepts]: Start accepts. Automaton has 125316 states and 189874 transitions. Word has length 241 [2018-09-14 17:28:29,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:28:29,796 INFO L480 AbstractCegarLoop]: Abstraction has 125316 states and 189874 transitions. [2018-09-14 17:28:29,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:28:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 125316 states and 189874 transitions. [2018-09-14 17:28:29,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-09-14 17:28:29,811 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:28:29,812 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:28:29,812 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:28:29,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1911097196, now seen corresponding path program 1 times [2018-09-14 17:28:29,813 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:28:29,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:29,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:29,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:29,814 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:28:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:30,425 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:28:30,425 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 17:28:30,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:30,441 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:28:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:30,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:28:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:30,850 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:28:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:31,018 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:28:31,018 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:28:31,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:31,037 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:28:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:31,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:28:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:31,317 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:28:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:31,479 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:28:31,479 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:28:31,479 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:28:31,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:28:31,480 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:28:31,480 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:28:31,480 INFO L87 Difference]: Start difference. First operand 125316 states and 189874 transitions. Second operand 9 states. [2018-09-14 17:28:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:53,754 INFO L93 Difference]: Finished difference Result 307618 states and 636354 transitions. [2018-09-14 17:28:53,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:28:53,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 302 [2018-09-14 17:28:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:55,979 INFO L225 Difference]: With dead ends: 307618 [2018-09-14 17:28:55,980 INFO L226 Difference]: Without dead ends: 182313 [2018-09-14 17:28:56,337 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1224 GetRequests, 1203 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-14 17:28:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182313 states. [2018-09-14 17:29:07,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182313 to 179630. [2018-09-14 17:29:07,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179630 states. [2018-09-14 17:29:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179630 states to 179630 states and 334796 transitions. [2018-09-14 17:29:09,006 INFO L78 Accepts]: Start accepts. Automaton has 179630 states and 334796 transitions. Word has length 302 [2018-09-14 17:29:09,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:29:09,007 INFO L480 AbstractCegarLoop]: Abstraction has 179630 states and 334796 transitions. [2018-09-14 17:29:09,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:29:09,007 INFO L276 IsEmpty]: Start isEmpty. Operand 179630 states and 334796 transitions. [2018-09-14 17:29:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-09-14 17:29:09,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:29:09,045 INFO L376 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:09,045 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:29:09,045 INFO L82 PathProgramCache]: Analyzing trace with hash 487983759, now seen corresponding path program 1 times [2018-09-14 17:29:09,045 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:29:09,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:29:09,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:09,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:29:09,047 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:29:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:09,378 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:29:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 105 proven. 143 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-14 17:29:09,521 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:29:09,521 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 17:29:09,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:09,534 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:29:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:09,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:29:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-09-14 17:29:09,770 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:29:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 181 proven. 71 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-09-14 17:29:09,922 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:29:09,922 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:29:09,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:09,938 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:29:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:10,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:29:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-09-14 17:29:10,582 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:29:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 107 proven. 134 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-14 17:29:10,981 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 17:29:10,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 13 [2018-09-14 17:29:10,982 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:29:10,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:29:10,985 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:29:10,985 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:29:10,985 INFO L87 Difference]: Start difference. First operand 179630 states and 334796 transitions. Second operand 5 states. [2018-09-14 17:29:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:29:23,844 INFO L93 Difference]: Finished difference Result 364522 states and 746145 transitions. [2018-09-14 17:29:23,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:29:23,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2018-09-14 17:29:23,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:29:25,100 INFO L225 Difference]: With dead ends: 364522 [2018-09-14 17:29:25,101 INFO L226 Difference]: Without dead ends: 184938 [2018-09-14 17:29:26,988 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1356 GetRequests, 1335 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-09-14 17:29:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184938 states. [2018-09-14 17:29:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184938 to 184556. [2018-09-14 17:29:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184556 states. Received shutdown request... [2018-09-14 17:29:31,884 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:29:31,890 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:29:31,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:29:31 BoogieIcfgContainer [2018-09-14 17:29:31,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:29:31,891 INFO L168 Benchmark]: Toolchain (without parser) took 220131.79 ms. Allocated memory was 1.5 GB in the beginning and 5.2 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -295.9 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-09-14 17:29:31,892 INFO L168 Benchmark]: CDTParser took 0.49 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 17:29:31,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2228.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-14 17:29:31,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 284.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-14 17:29:31,895 INFO L168 Benchmark]: Boogie Preprocessor took 1063.40 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 925.9 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-14 17:29:31,897 INFO L168 Benchmark]: RCFGBuilder took 11737.77 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 645.9 MB). Peak memory consumption was 645.9 MB. Max. memory is 7.1 GB. [2018-09-14 17:29:31,897 INFO L168 Benchmark]: TraceAbstraction took 204807.67 ms. Allocated memory was 2.5 GB in the beginning and 5.2 GB in the end (delta: 2.7 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: -32.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-09-14 17:29:31,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 2228.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 284.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1063.40 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 925.9 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11737.77 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 645.9 MB). Peak memory consumption was 645.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204807.67 ms. Allocated memory was 2.5 GB in the beginning and 5.2 GB in the end (delta: 2.7 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: -32.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 111). Cancelled while ReachableStatesComputation was computing reachable states (184176 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 204.7s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 164.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1485 SDtfs, 35614 SDslu, 2042 SDs, 0 SdLazy, 68948 SolverSat, 14505 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 118.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4028 GetRequests, 3910 SyntacticMatches, 24 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179630occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 30.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 8228 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 3747 NumberOfCodeBlocks, 3747 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5682 ConstructedInterpolants, 0 QuantifiedInterpolants, 4569759 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3536 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 24 InterpolantComputations, 8 PerfectInterpolantSequences, 3312/3830 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label54_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-29-31-916.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label54_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-29-31-916.csv Completed graceful shutdown