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/Problem11_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:13:56,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:13:56,784 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:13:56,800 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:13:56,800 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:13:56,801 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:13:56,803 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:13:56,806 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:13:56,807 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:13:56,808 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:13:56,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:13:56,811 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:13:56,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:13:56,817 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:13:56,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:13:56,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:13:56,821 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:13:56,831 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:13:56,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:13:56,835 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:13:56,841 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:13:56,842 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:13:56,846 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:13:56,847 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:13:56,847 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:13:56,848 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:13:56,850 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:13:56,851 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:13:56,852 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:13:56,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:13:56,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:13:56,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:13:56,857 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:13:56,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:13:56,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:13:56,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:13:56,860 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 17:13:56,892 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:13:56,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:13:56,894 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:13:56,894 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:13:56,894 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:13:56,895 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:13:56,895 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:13:56,895 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:13:56,895 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:13:56,896 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:13:56,896 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:13:56,897 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:13:56,897 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:13:56,897 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:13:56,898 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:13:56,898 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:13:56,898 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:13:56,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:13:56,900 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:13:56,900 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:13:56,900 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:13:56,901 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:13:56,901 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:13:56,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:13:56,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:13:56,901 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:13:56,902 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:13:56,902 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:13:56,902 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:13:56,902 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:13:56,902 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:13:56,903 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:13:56,903 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:13:56,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:13:56,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:13:56,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:13:56,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:13:56,971 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:13:56,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label40_true-unreach-call.c [2018-09-14 17:13:57,326 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8f56ade/0b99fa225c6d4288bab185b81057904e/FLAGe8ffd0e41 [2018-09-14 17:13:57,622 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:13:57,623 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label40_true-unreach-call.c [2018-09-14 17:13:57,647 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8f56ade/0b99fa225c6d4288bab185b81057904e/FLAGe8ffd0e41 [2018-09-14 17:13:57,669 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c8f56ade/0b99fa225c6d4288bab185b81057904e [2018-09-14 17:13:57,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:13:57,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:13:57,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:13:57,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:13:57,697 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:13:57,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:13:57" (1/1) ... [2018-09-14 17:13:57,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23cf82e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:57, skipping insertion in model container [2018-09-14 17:13:57,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:13:57" (1/1) ... [2018-09-14 17:13:57,713 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:13:58,354 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:13:58,376 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:13:58,553 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:13:58,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58 WrapperNode [2018-09-14 17:13:58,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:13:58,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:13:58,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:13:58,642 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:13:58,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:58,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:58,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:13:58,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:13:58,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:13:58,804 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:13:59,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (1/1) ... [2018-09-14 17:13:59,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:13:59,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:13:59,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:13:59,207 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:13:59,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (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 17:13:59,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:13:59,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:13:59,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:13:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:13:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:13:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:13:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:13:59,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:14:03,770 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:14:03,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:14:03 BoogieIcfgContainer [2018-09-14 17:14:03,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:14:03,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:14:03,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:14:03,775 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:14:03,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:13:57" (1/3) ... [2018-09-14 17:14:03,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26c1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:14:03, skipping insertion in model container [2018-09-14 17:14:03,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:13:58" (2/3) ... [2018-09-14 17:14:03,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26c1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:14:03, skipping insertion in model container [2018-09-14 17:14:03,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:14:03" (3/3) ... [2018-09-14 17:14:03,779 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label40_true-unreach-call.c [2018-09-14 17:14:03,789 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:14:03,798 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:14:03,853 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:14:03,854 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:14:03,854 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:14:03,854 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:14:03,854 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:14:03,855 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:14:03,855 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:14:03,855 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:14:03,855 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:14:03,885 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-14 17:14:03,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-14 17:14:03,895 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:03,896 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] [2018-09-14 17:14:03,898 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:03,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1597771487, now seen corresponding path program 1 times [2018-09-14 17:14:03,906 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:03,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:03,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:03,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:03,954 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:04,432 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 17:14:04,434 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:14:04,435 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:14:04,435 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:04,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:14:04,456 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:14:04,457 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:14:04,460 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-09-14 17:14:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:07,754 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-09-14 17:14:07,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:14:07,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-09-14 17:14:07,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:07,781 INFO L225 Difference]: With dead ends: 979 [2018-09-14 17:14:07,781 INFO L226 Difference]: Without dead ends: 680 [2018-09-14 17:14:07,791 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:14:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-09-14 17:14:07,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-09-14 17:14:07,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-09-14 17:14:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-09-14 17:14:07,930 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 51 [2018-09-14 17:14:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:07,930 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-09-14 17:14:07,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:14:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-09-14 17:14:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-14 17:14:07,941 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:07,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:07,942 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:07,942 INFO L82 PathProgramCache]: Analyzing trace with hash 686344627, now seen corresponding path program 1 times [2018-09-14 17:14:07,942 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:07,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:07,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:07,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:07,944 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:08,243 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:14:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:14:08,326 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:14:08,327 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:14:08,327 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:08,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:14:08,329 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:14:08,329 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:14:08,330 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-09-14 17:14:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:12,459 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-09-14 17:14:12,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:14:12,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-09-14 17:14:12,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:12,477 INFO L225 Difference]: With dead ends: 1555 [2018-09-14 17:14:12,478 INFO L226 Difference]: Without dead ends: 1077 [2018-09-14 17:14:12,481 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:14:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-09-14 17:14:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-09-14 17:14:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-09-14 17:14:12,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-09-14 17:14:12,530 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 124 [2018-09-14 17:14:12,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:12,531 INFO L480 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-09-14 17:14:12,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:14:12,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-09-14 17:14:12,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-14 17:14:12,537 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:12,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:12,538 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:12,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2122174748, now seen corresponding path program 1 times [2018-09-14 17:14:12,539 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:12,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:12,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:12,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:12,540 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:14:12,756 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:14:12,757 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:14:12,757 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:12,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:14:12,758 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:14:12,758 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:14:12,758 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-09-14 17:14:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:16,135 INFO L93 Difference]: Finished difference Result 2907 states and 4465 transitions. [2018-09-14 17:14:16,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:14:16,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2018-09-14 17:14:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:16,149 INFO L225 Difference]: With dead ends: 2907 [2018-09-14 17:14:16,149 INFO L226 Difference]: Without dead ends: 1850 [2018-09-14 17:14:16,156 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:14:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2018-09-14 17:14:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1646. [2018-09-14 17:14:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-09-14 17:14:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2436 transitions. [2018-09-14 17:14:16,220 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2436 transitions. Word has length 125 [2018-09-14 17:14:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:16,221 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2436 transitions. [2018-09-14 17:14:16,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:14:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2436 transitions. [2018-09-14 17:14:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-14 17:14:16,231 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:16,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:16,232 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:16,232 INFO L82 PathProgramCache]: Analyzing trace with hash -777131457, now seen corresponding path program 1 times [2018-09-14 17:14:16,232 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:16,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:16,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:16,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:16,235 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:16,821 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-09-14 17:14:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:14:16,911 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:14:16,911 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-14 17:14:16,911 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:16,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-14 17:14:16,912 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-14 17:14:16,912 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:14:16,912 INFO L87 Difference]: Start difference. First operand 1646 states and 2436 transitions. Second operand 7 states. [2018-09-14 17:14:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:21,569 INFO L93 Difference]: Finished difference Result 4745 states and 7344 transitions. [2018-09-14 17:14:21,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:14:21,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2018-09-14 17:14:21,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:21,590 INFO L225 Difference]: With dead ends: 4745 [2018-09-14 17:14:21,591 INFO L226 Difference]: Without dead ends: 2910 [2018-09-14 17:14:21,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:14:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2018-09-14 17:14:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2759. [2018-09-14 17:14:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2759 states. [2018-09-14 17:14:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 3982 transitions. [2018-09-14 17:14:21,699 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 3982 transitions. Word has length 146 [2018-09-14 17:14:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:21,700 INFO L480 AbstractCegarLoop]: Abstraction has 2759 states and 3982 transitions. [2018-09-14 17:14:21,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-14 17:14:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 3982 transitions. [2018-09-14 17:14:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-09-14 17:14:21,708 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:21,709 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:21,709 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:21,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1721682631, now seen corresponding path program 1 times [2018-09-14 17:14:21,710 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:21,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:21,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:21,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:21,711 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-14 17:14:22,755 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:14:22,755 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 17:14:22,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:22,777 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:14:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:22,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:14:23,900 WARN L178 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2018-09-14 17:14:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-14 17:14:24,166 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:14:24,457 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-14 17:14:24,925 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 6 [2018-09-14 17:14:25,479 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-14 17:14:25,514 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:14:25,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-09-14 17:14:25,514 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:25,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:14:25,515 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:14:25,515 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:14:25,516 INFO L87 Difference]: Start difference. First operand 2759 states and 3982 transitions. Second operand 6 states. [2018-09-14 17:14:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:29,674 INFO L93 Difference]: Finished difference Result 8417 states and 13147 transitions. [2018-09-14 17:14:29,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:14:29,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 263 [2018-09-14 17:14:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:29,713 INFO L225 Difference]: With dead ends: 8417 [2018-09-14 17:14:29,714 INFO L226 Difference]: Without dead ends: 5664 [2018-09-14 17:14:29,737 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:14:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5664 states. [2018-09-14 17:14:29,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5664 to 5528. [2018-09-14 17:14:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5528 states. [2018-09-14 17:14:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 8363 transitions. [2018-09-14 17:14:29,899 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 8363 transitions. Word has length 263 [2018-09-14 17:14:29,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:29,900 INFO L480 AbstractCegarLoop]: Abstraction has 5528 states and 8363 transitions. [2018-09-14 17:14:29,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:14:29,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 8363 transitions. [2018-09-14 17:14:29,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-09-14 17:14:29,915 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:29,915 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:29,916 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:29,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1726189397, now seen corresponding path program 1 times [2018-09-14 17:14:29,916 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:29,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:29,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:29,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:29,918 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:14:30,518 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:14:30,518 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 17:14:30,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:30,526 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:14:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:30,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:14:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-14 17:14:30,806 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:14:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-14 17:14:31,071 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:14:31,071 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-14 17:14:31,071 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:31,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:14:31,072 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:14:31,072 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:14:31,073 INFO L87 Difference]: Start difference. First operand 5528 states and 8363 transitions. Second operand 3 states. [2018-09-14 17:14:33,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:33,764 INFO L93 Difference]: Finished difference Result 14511 states and 22976 transitions. [2018-09-14 17:14:33,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:14:33,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2018-09-14 17:14:33,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:33,824 INFO L225 Difference]: With dead ends: 14511 [2018-09-14 17:14:33,825 INFO L226 Difference]: Without dead ends: 8989 [2018-09-14 17:14:33,867 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:14:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2018-09-14 17:14:34,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8789. [2018-09-14 17:14:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8789 states. [2018-09-14 17:14:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8789 states to 8789 states and 12619 transitions. [2018-09-14 17:14:34,116 INFO L78 Accepts]: Start accepts. Automaton has 8789 states and 12619 transitions. Word has length 286 [2018-09-14 17:14:34,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:34,117 INFO L480 AbstractCegarLoop]: Abstraction has 8789 states and 12619 transitions. [2018-09-14 17:14:34,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:14:34,117 INFO L276 IsEmpty]: Start isEmpty. Operand 8789 states and 12619 transitions. [2018-09-14 17:14:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-09-14 17:14:34,148 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:34,148 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, 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, 1, 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 17:14:34,148 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:34,149 INFO L82 PathProgramCache]: Analyzing trace with hash 454493284, now seen corresponding path program 1 times [2018-09-14 17:14:34,149 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:34,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:34,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:34,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:34,150 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 83 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:14:34,851 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:14:34,851 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:14:34,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:34,861 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:14:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:34,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:14:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:14:35,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:14:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:14:35,522 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:14:35,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 8 [2018-09-14 17:14:35,523 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:35,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:14:35,524 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:14:35,524 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:14:35,525 INFO L87 Difference]: Start difference. First operand 8789 states and 12619 transitions. Second operand 3 states. [2018-09-14 17:14:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:14:37,084 INFO L93 Difference]: Finished difference Result 19509 states and 28585 transitions. [2018-09-14 17:14:37,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:14:37,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2018-09-14 17:14:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:14:37,134 INFO L225 Difference]: With dead ends: 19509 [2018-09-14 17:14:37,134 INFO L226 Difference]: Without dead ends: 10726 [2018-09-14 17:14:37,181 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 602 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:14:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2018-09-14 17:14:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9772. [2018-09-14 17:14:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9772 states. [2018-09-14 17:14:37,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9772 states to 9772 states and 13889 transitions. [2018-09-14 17:14:37,438 INFO L78 Accepts]: Start accepts. Automaton has 9772 states and 13889 transitions. Word has length 300 [2018-09-14 17:14:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:14:37,439 INFO L480 AbstractCegarLoop]: Abstraction has 9772 states and 13889 transitions. [2018-09-14 17:14:37,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:14:37,439 INFO L276 IsEmpty]: Start isEmpty. Operand 9772 states and 13889 transitions. [2018-09-14 17:14:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-09-14 17:14:37,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:14:37,478 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:14:37,478 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:14:37,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1785216578, now seen corresponding path program 1 times [2018-09-14 17:14:37,479 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:14:37,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:37,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:37,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:14:37,480 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:14:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-14 17:14:38,837 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:14:38,837 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 17:14:38,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:38,846 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:14:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:38,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:14:41,038 WARN L178 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-09-14 17:14:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 11 proven. 84 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-14 17:14:41,307 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:14:41,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,055 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,262 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,330 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,370 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,564 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,804 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,846 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:42,889 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,086 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,128 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,172 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,289 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,328 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,417 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,462 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,501 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,556 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,595 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,655 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,736 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,822 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,868 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,931 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:43,970 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,081 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,122 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,166 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,519 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,625 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,698 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,736 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,815 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:44,852 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,279 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,339 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,453 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,503 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,567 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,604 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,643 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,719 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,756 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,793 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,837 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,878 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,956 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:45,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,047 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,564 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,608 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,646 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,685 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,804 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,868 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,951 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:46,990 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,036 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,082 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,206 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,242 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,277 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,366 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,403 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,743 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,831 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,869 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,941 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:47,979 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,058 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,123 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,161 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,198 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,235 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,300 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,361 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,416 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,461 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,498 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,536 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,574 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,659 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,695 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,858 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,895 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,931 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:48,967 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,008 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,321 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,817 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:49,929 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,242 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,291 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,350 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,431 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,471 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,509 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,596 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,637 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,675 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,712 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,749 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,864 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,901 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,940 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:50,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,013 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,051 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,089 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,129 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,166 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,202 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,238 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,275 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,312 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,349 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,411 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,448 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,487 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,524 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,559 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,595 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,633 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,671 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,707 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,744 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,779 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,816 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,852 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,889 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,926 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,963 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:51,999 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,039 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,108 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,174 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,224 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,267 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,316 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,361 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:52,402 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:14:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 91 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:14:54,363 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:14:54,364 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 17:14:54,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:14:54,380 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:14:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:14:54,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:14:55,047 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2018-09-14 17:14:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:14:55,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:14:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:14:55,841 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-14 17:14:55,841 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [10, 9, 9] total 25 [2018-09-14 17:14:55,841 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:14:55,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:14:55,842 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:14:55,843 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2018-09-14 17:14:55,843 INFO L87 Difference]: Start difference. First operand 9772 states and 13889 transitions. Second operand 4 states. Received shutdown request... [2018-09-14 17:18:22,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:18:22,150 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:18:22,154 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:18:22,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:18:22 BoogieIcfgContainer [2018-09-14 17:18:22,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:18:22,156 INFO L168 Benchmark]: Toolchain (without parser) took 264470.91 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 261.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:18:22,157 INFO L168 Benchmark]: CDTParser took 0.23 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 17:18:22,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 953.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-14 17:18:22,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:18:22,159 INFO L168 Benchmark]: Boogie Preprocessor took 402.41 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 833.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -960.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:18:22,160 INFO L168 Benchmark]: RCFGBuilder took 4564.64 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 182.6 MB). Peak memory consumption was 182.6 MB. Max. memory is 7.1 GB. [2018-09-14 17:18:22,161 INFO L168 Benchmark]: TraceAbstraction took 258383.03 ms. Allocated memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: 583.0 MB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -472.6 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. [2018-09-14 17:18:22,166 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 953.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 161.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 402.41 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 833.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -960.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4564.64 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 182.6 MB). Peak memory consumption was 182.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 258383.03 ms. Allocated memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: 583.0 MB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -472.6 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 138). Cancelled while BasicCegarLoop was constructing difference of abstraction (9772states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (2695 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 258.3s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 230.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2006 SDtfs, 4686 SDslu, 1042 SDs, 0 SdLazy, 9385 SolverSat, 2504 SolverUnsat, 109 SolverUnknown, 0 SolverNotchecked, 225.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3204 GetRequests, 2962 SyntacticMatches, 178 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9772occurred in iteration=7, 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: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 1855 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 24.6s InterpolantComputationTime, 3221 NumberOfCodeBlocks, 3221 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4770 ConstructedInterpolants, 362 QuantifiedInterpolants, 11668894 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2606 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 2341/2953 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/Problem11_label40_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-18-22-184.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label40_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-18-22-184.csv Completed graceful shutdown