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_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:29:54,864 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:29:54,866 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:29:54,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:29:54,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:29:54,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:29:54,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:29:54,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:29:54,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:29:54,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:29:54,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:29:54,887 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:29:54,888 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:29:54,889 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:29:54,890 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:29:54,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:29:54,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:29:54,894 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:29:54,896 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:29:54,898 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:29:54,899 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:29:54,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:29:54,903 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:29:54,910 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:29:54,911 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:29:54,912 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:29:54,912 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:29:54,913 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 [2018-09-18 11:29:54,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:29:54,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:29:54,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:29:54,930 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:29:54,930 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:29:54,931 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:29:54,931 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:29:54,931 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:29:54,931 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:29:54,931 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:29:54,932 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:29:54,932 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:29:54,933 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:29:54,933 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:29:54,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:29:54,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:29:54,934 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:29:54,934 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:29:54,934 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:29:54,934 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:29:54,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:29:54,935 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:29:54,935 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:29:54,935 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:29:54,935 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:29:54,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:29:54,936 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:29:54,936 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:29:54,936 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:29:54,936 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:29:54,936 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:29:54,937 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:29:54,937 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:29:54,937 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:29:54,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:29:54,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:29:54,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:29:55,001 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:29:55,001 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:29:55,002 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label12_true-unreach-call.c [2018-09-18 11:29:55,362 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc4c8146/0003168593cb4a9195c4ba97a57f7aca/FLAGbae6dea5d [2018-09-18 11:29:55,842 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:29:55,843 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label12_true-unreach-call.c [2018-09-18 11:29:55,873 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc4c8146/0003168593cb4a9195c4ba97a57f7aca/FLAGbae6dea5d [2018-09-18 11:29:55,889 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc4c8146/0003168593cb4a9195c4ba97a57f7aca [2018-09-18 11:29:55,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:29:55,907 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:29:55,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:29:55,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:29:55,919 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:29:55,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:29:55" (1/1) ... [2018-09-18 11:29:55,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:55, skipping insertion in model container [2018-09-18 11:29:55,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:29:55" (1/1) ... [2018-09-18 11:29:55,937 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:29:57,328 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:29:57,346 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:29:57,866 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:29:58,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58 WrapperNode [2018-09-18 11:29:58,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:29:58,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:29:58,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:29:58,107 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:29:58,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:58,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:58,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:29:58,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:29:58,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:29:58,363 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:29:58,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:58,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:58,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:58,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:59,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:59,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:59,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (1/1) ... [2018-09-18 11:29:59,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:29:59,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:29:59,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:29:59,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:29:59,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (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 [2018-09-18 11:29:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:29:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:29:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:29:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:29:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:29:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:29:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:29:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:29:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:29:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:29:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:29:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:29:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:29:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:30:11,302 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:30:11,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:30:11 BoogieIcfgContainer [2018-09-18 11:30:11,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:30:11,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:30:11,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:30:11,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:30:11,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:29:55" (1/3) ... [2018-09-18 11:30:11,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125cf986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:30:11, skipping insertion in model container [2018-09-18 11:30:11,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:29:58" (2/3) ... [2018-09-18 11:30:11,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125cf986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:30:11, skipping insertion in model container [2018-09-18 11:30:11,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:30:11" (3/3) ... [2018-09-18 11:30:11,311 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label12_true-unreach-call.c [2018-09-18 11:30:11,322 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:30:11,333 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:30:11,403 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:30:11,404 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:30:11,404 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:30:11,404 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:30:11,405 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:30:11,405 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:30:11,405 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:30:11,405 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:30:11,405 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:30:11,449 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-18 11:30:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-09-18 11:30:11,466 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:11,467 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:30:11,469 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:11,474 INFO L82 PathProgramCache]: Analyzing trace with hash -653168765, now seen corresponding path program 1 times [2018-09-18 11:30:11,477 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:11,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:11,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:11,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:11,533 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:12,012 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:30:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:30:12,253 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:30:12,253 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:30:12,253 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:12,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:30:12,280 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:30:12,281 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:30:12,283 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-09-18 11:30:20,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:20,391 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-09-18 11:30:20,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:30:20,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-09-18 11:30:20,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:20,444 INFO L225 Difference]: With dead ends: 2446 [2018-09-18 11:30:20,444 INFO L226 Difference]: Without dead ends: 1604 [2018-09-18 11:30:20,459 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 [2018-09-18 11:30:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-09-18 11:30:20,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-09-18 11:30:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-18 11:30:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-09-18 11:30:20,649 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 65 [2018-09-18 11:30:20,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:20,650 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-09-18 11:30:20,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:30:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-09-18 11:30:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-18 11:30:20,659 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:20,659 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:30:20,660 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:20,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1735878332, now seen corresponding path program 1 times [2018-09-18 11:30:20,660 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:20,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:20,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:20,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:20,662 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:21,048 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:30:21,151 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:30:21,152 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:30:21,152 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:30:21,152 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:21,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:30:21,154 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:30:21,154 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:30:21,155 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-09-18 11:30:31,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:31,358 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-09-18 11:30:31,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:30:31,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2018-09-18 11:30:31,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:31,381 INFO L225 Difference]: With dead ends: 4818 [2018-09-18 11:30:31,382 INFO L226 Difference]: Without dead ends: 3220 [2018-09-18 11:30:31,387 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 [2018-09-18 11:30:31,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-09-18 11:30:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-09-18 11:30:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-09-18 11:30:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-09-18 11:30:31,515 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 139 [2018-09-18 11:30:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:31,516 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-09-18 11:30:31,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:30:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-09-18 11:30:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-09-18 11:30:31,521 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:31,521 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:30:31,521 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:31,522 INFO L82 PathProgramCache]: Analyzing trace with hash 2022768053, now seen corresponding path program 1 times [2018-09-18 11:30:31,522 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:31,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:31,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:31,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:31,523 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:30:31,756 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:30:31,757 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:30:31,757 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:31,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:30:31,758 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:30:31,758 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:30:31,758 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-09-18 11:30:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:43,735 INFO L93 Difference]: Finished difference Result 11148 states and 19850 transitions. [2018-09-18 11:30:43,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:30:43,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-09-18 11:30:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:43,789 INFO L225 Difference]: With dead ends: 11148 [2018-09-18 11:30:43,790 INFO L226 Difference]: Without dead ends: 7968 [2018-09-18 11:30:43,805 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 [2018-09-18 11:30:43,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2018-09-18 11:30:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7924. [2018-09-18 11:30:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7924 states. [2018-09-18 11:30:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13424 transitions. [2018-09-18 11:30:44,049 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 13424 transitions. Word has length 144 [2018-09-18 11:30:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:44,050 INFO L480 AbstractCegarLoop]: Abstraction has 7924 states and 13424 transitions. [2018-09-18 11:30:44,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:30:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 13424 transitions. [2018-09-18 11:30:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-09-18 11:30:44,055 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:44,056 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:30:44,056 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:44,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1110461253, now seen corresponding path program 1 times [2018-09-18 11:30:44,058 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:44,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:44,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:44,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:44,059 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:44,381 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:30:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:30:44,518 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:30:44,518 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:30:44,518 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:44,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:30:44,519 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:30:44,519 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:30:44,520 INFO L87 Difference]: Start difference. First operand 7924 states and 13424 transitions. Second operand 6 states. [2018-09-18 11:30:55,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:55,800 INFO L93 Difference]: Finished difference Result 22224 states and 38004 transitions. [2018-09-18 11:30:55,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:30:55,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-09-18 11:30:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:55,875 INFO L225 Difference]: With dead ends: 22224 [2018-09-18 11:30:55,876 INFO L226 Difference]: Without dead ends: 14306 [2018-09-18 11:30:55,914 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:30:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2018-09-18 11:30:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 14219. [2018-09-18 11:30:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-09-18 11:30:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 21550 transitions. [2018-09-18 11:30:56,248 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 21550 transitions. Word has length 152 [2018-09-18 11:30:56,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:56,249 INFO L480 AbstractCegarLoop]: Abstraction has 14219 states and 21550 transitions. [2018-09-18 11:30:56,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:30:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 21550 transitions. [2018-09-18 11:30:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-09-18 11:30:56,257 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:56,257 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:30:56,257 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:56,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1126931720, now seen corresponding path program 1 times [2018-09-18 11:30:56,258 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:56,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:56,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:56,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:56,262 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:30:56,510 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:30:56,510 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:30:56,510 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:56,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:30:56,511 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:30:56,511 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:30:56,512 INFO L87 Difference]: Start difference. First operand 14219 states and 21550 transitions. Second operand 6 states. [2018-09-18 11:31:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:31:08,410 INFO L93 Difference]: Finished difference Result 35956 states and 55845 transitions. [2018-09-18 11:31:08,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:31:08,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-09-18 11:31:08,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:31:08,501 INFO L225 Difference]: With dead ends: 35956 [2018-09-18 11:31:08,502 INFO L226 Difference]: Without dead ends: 21743 [2018-09-18 11:31:08,561 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 [2018-09-18 11:31:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21743 states. [2018-09-18 11:31:08,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21743 to 21651. [2018-09-18 11:31:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21651 states. [2018-09-18 11:31:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21651 states to 21651 states and 30247 transitions. [2018-09-18 11:31:09,000 INFO L78 Accepts]: Start accepts. Automaton has 21651 states and 30247 transitions. Word has length 185 [2018-09-18 11:31:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:31:09,001 INFO L480 AbstractCegarLoop]: Abstraction has 21651 states and 30247 transitions. [2018-09-18 11:31:09,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:31:09,001 INFO L276 IsEmpty]: Start isEmpty. Operand 21651 states and 30247 transitions. [2018-09-18 11:31:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-09-18 11:31:09,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:31:09,016 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:31:09,017 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:31:09,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1082582744, now seen corresponding path program 1 times [2018-09-18 11:31:09,017 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:31:09,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:09,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:09,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:09,018 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:31:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:09,677 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 119 proven. 67 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-18 11:31:09,678 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:31:09,678 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 [2018-09-18 11:31:09,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:09,696 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:31:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:09,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:31:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:31:10,302 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:31:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:31:11,112 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:31:11,112 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 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:31:11,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:11,137 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:31:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:11,298 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:31:11,681 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:31:11,681 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:31:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:31:11,947 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:31:11,947 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 11:31:11,947 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:31:11,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:31:11,949 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:31:11,949 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:31:11,949 INFO L87 Difference]: Start difference. First operand 21651 states and 30247 transitions. Second operand 9 states. [2018-09-18 11:31:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:31:34,801 INFO L93 Difference]: Finished difference Result 66713 states and 105908 transitions. [2018-09-18 11:31:34,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-09-18 11:31:34,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 236 [2018-09-18 11:31:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:31:35,075 INFO L225 Difference]: With dead ends: 66713 [2018-09-18 11:31:35,076 INFO L226 Difference]: Without dead ends: 45068 [2018-09-18 11:31:35,195 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 954 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=359, Invalid=1281, Unknown=0, NotChecked=0, Total=1640 [2018-09-18 11:31:35,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45068 states. [2018-09-18 11:31:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45068 to 44019. [2018-09-18 11:31:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44019 states. [2018-09-18 11:31:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44019 states to 44019 states and 57466 transitions. [2018-09-18 11:31:36,550 INFO L78 Accepts]: Start accepts. Automaton has 44019 states and 57466 transitions. Word has length 236 [2018-09-18 11:31:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:31:36,550 INFO L480 AbstractCegarLoop]: Abstraction has 44019 states and 57466 transitions. [2018-09-18 11:31:36,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:31:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 44019 states and 57466 transitions. [2018-09-18 11:31:36,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-09-18 11:31:36,566 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:31:36,566 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:31:36,566 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:31:36,567 INFO L82 PathProgramCache]: Analyzing trace with hash 465647125, now seen corresponding path program 1 times [2018-09-18 11:31:36,567 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:31:36,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:36,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:36,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:36,568 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:31:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 116 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:31:36,982 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:31:36,982 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 [2018-09-18 11:31:36,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:36,999 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:31:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:37,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:31:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-09-18 11:31:37,273 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:31:37,478 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 11:31:37,579 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 11:31:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 116 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:31:38,568 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:31:38,568 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-18 11:31:38,569 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:31:38,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:31:38,570 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:31:38,572 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:31:38,572 INFO L87 Difference]: Start difference. First operand 44019 states and 57466 transitions. Second operand 5 states. [2018-09-18 11:31:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:31:53,171 INFO L93 Difference]: Finished difference Result 133728 states and 183386 transitions. [2018-09-18 11:31:53,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:31:53,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2018-09-18 11:31:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:31:53,947 INFO L225 Difference]: With dead ends: 133728 [2018-09-18 11:31:53,947 INFO L226 Difference]: Without dead ends: 89715 [2018-09-18 11:31:54,028 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 520 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:31:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89715 states. [2018-09-18 11:31:55,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89715 to 86844. [2018-09-18 11:31:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86844 states. [2018-09-18 11:31:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86844 states to 86844 states and 110614 transitions. [2018-09-18 11:31:55,683 INFO L78 Accepts]: Start accepts. Automaton has 86844 states and 110614 transitions. Word has length 261 [2018-09-18 11:31:55,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:31:55,683 INFO L480 AbstractCegarLoop]: Abstraction has 86844 states and 110614 transitions. [2018-09-18 11:31:55,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:31:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 86844 states and 110614 transitions. [2018-09-18 11:31:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-18 11:31:55,697 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:31:55,698 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:31:55,698 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:31:55,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1257375206, now seen corresponding path program 1 times [2018-09-18 11:31:55,699 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:31:55,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:55,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:55,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:55,700 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:31:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:56,381 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:31:57,055 WARN L178 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-09-18 11:31:57,284 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-09-18 11:31:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 129 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:31:57,652 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:31:57,652 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 [2018-09-18 11:31:57,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:57,661 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:31:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:57,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:31:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-09-18 11:31:58,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:31:58,312 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-09-18 11:31:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 116 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:31:59,810 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:31:59,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 5] total 16 [2018-09-18 11:31:59,811 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:31:59,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:31:59,811 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:31:59,811 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:31:59,812 INFO L87 Difference]: Start difference. First operand 86844 states and 110614 transitions. Second operand 5 states. [2018-09-18 11:32:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:32:10,905 INFO L93 Difference]: Finished difference Result 191658 states and 245699 transitions. [2018-09-18 11:32:10,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 11:32:10,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 288 [2018-09-18 11:32:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:32:11,255 INFO L225 Difference]: With dead ends: 191658 [2018-09-18 11:32:11,255 INFO L226 Difference]: Without dead ends: 104820 [2018-09-18 11:32:11,405 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 571 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2018-09-18 11:32:11,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104820 states. [2018-09-18 11:32:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104820 to 102982. [2018-09-18 11:32:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102982 states. [2018-09-18 11:32:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102982 states to 102982 states and 127759 transitions. [2018-09-18 11:32:13,532 INFO L78 Accepts]: Start accepts. Automaton has 102982 states and 127759 transitions. Word has length 288 [2018-09-18 11:32:13,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:32:13,532 INFO L480 AbstractCegarLoop]: Abstraction has 102982 states and 127759 transitions. [2018-09-18 11:32:13,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:32:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 102982 states and 127759 transitions. [2018-09-18 11:32:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-18 11:32:13,554 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:32:13,554 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:32:13,554 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:32:13,555 INFO L82 PathProgramCache]: Analyzing trace with hash -733800428, now seen corresponding path program 1 times [2018-09-18 11:32:13,555 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:32:13,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:13,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:13,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:13,556 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:32:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:32:14,036 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:32:14,036 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:32:14,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:14,046 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:32:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:14,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:32:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:32:14,317 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:32:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:32:14,542 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:32:14,542 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:32:14,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:14,557 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:32:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:14,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:32:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:32:15,068 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:32:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:32:15,923 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:32:15,923 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:32:15,923 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:32:15,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:32:15,925 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:32:15,925 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:32:15,925 INFO L87 Difference]: Start difference. First operand 102982 states and 127759 transitions. Second operand 9 states. [2018-09-18 11:32:31,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:32:31,084 INFO L93 Difference]: Finished difference Result 221552 states and 301666 transitions. [2018-09-18 11:32:31,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 11:32:31,084 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 346 [2018-09-18 11:32:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:32:31,419 INFO L225 Difference]: With dead ends: 221552 [2018-09-18 11:32:31,419 INFO L226 Difference]: Without dead ends: 104886 [2018-09-18 11:32:31,564 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1400 GetRequests, 1380 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:32:31,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104886 states. [2018-09-18 11:32:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104886 to 96620. [2018-09-18 11:32:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96620 states. [2018-09-18 11:32:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96620 states to 96620 states and 124786 transitions. [2018-09-18 11:32:33,258 INFO L78 Accepts]: Start accepts. Automaton has 96620 states and 124786 transitions. Word has length 346 [2018-09-18 11:32:33,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:32:33,258 INFO L480 AbstractCegarLoop]: Abstraction has 96620 states and 124786 transitions. [2018-09-18 11:32:33,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:32:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 96620 states and 124786 transitions. [2018-09-18 11:32:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2018-09-18 11:32:33,285 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:32:33,286 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:32:33,286 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:32:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash 2030598622, now seen corresponding path program 1 times [2018-09-18 11:32:33,287 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:32:33,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:33,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:33,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:32:33,288 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:32:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 240 proven. 137 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 11:32:33,887 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:32:33,887 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:32:34,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:34,907 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:32:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:35,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:32:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 383 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-09-18 11:32:35,267 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:32:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 299 proven. 73 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 11:32:35,591 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:32:35,591 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:32:35,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:32:35,609 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:32:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:32:35,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:32:35,976 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 383 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-09-18 11:32:35,976 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:32:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 299 proven. 73 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 11:32:36,338 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:32:36,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 18 [2018-09-18 11:32:36,339 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:32:36,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 11:32:36,340 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 11:32:36,340 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:32:36,341 INFO L87 Difference]: Start difference. First operand 96620 states and 124786 transitions. Second operand 15 states. [2018-09-18 11:33:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:33:44,172 INFO L93 Difference]: Finished difference Result 247592 states and 370417 transitions. [2018-09-18 11:33:44,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-09-18 11:33:44,173 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 407 [2018-09-18 11:33:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:33:44,640 INFO L225 Difference]: With dead ends: 247592 [2018-09-18 11:33:44,640 INFO L226 Difference]: Without dead ends: 147054 [2018-09-18 11:33:44,890 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1703 GetRequests, 1642 SyntacticMatches, 7 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=638, Invalid=2442, Unknown=0, NotChecked=0, Total=3080 [2018-09-18 11:33:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147054 states. Received shutdown request... [2018-09-18 11:33:45,966 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:33:45,971 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:33:45,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:33:45 BoogieIcfgContainer [2018-09-18 11:33:45,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:33:45,972 INFO L168 Benchmark]: Toolchain (without parser) took 230069.58 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 153.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-18 11:33:45,973 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-18 11:33:45,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2197.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:33:45,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 255.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:33:45,975 INFO L168 Benchmark]: Boogie Preprocessor took 863.41 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 939.5 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-18 11:33:45,976 INFO L168 Benchmark]: RCFGBuilder took 12076.75 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 662.8 MB). Peak memory consumption was 662.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:33:45,977 INFO L168 Benchmark]: TraceAbstraction took 214667.54 ms. Allocated memory was 2.5 GB in the beginning and 3.8 GB in the end (delta: 1.3 GB). Free memory was 1.7 GB in the beginning and 1.3 GB in the end (delta: 415.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-18 11:33:45,981 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2197.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 255.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 863.41 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 939.5 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12076.75 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 662.8 MB). Peak memory consumption was 662.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214667.54 ms. Allocated memory was 2.5 GB in the beginning and 3.8 GB in the end (delta: 1.3 GB). Free memory was 1.7 GB in the beginning and 1.3 GB in the end (delta: 415.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 186]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 186). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 214.5s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 188.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1746 SDtfs, 43435 SDslu, 3840 SDs, 0 SdLazy, 128993 SolverSat, 19974 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 148.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5264 GetRequests, 5077 SyntacticMatches, 23 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1298 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102982occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 9.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 14281 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 4750 NumberOfCodeBlocks, 4750 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 7251 ConstructedInterpolants, 0 QuantifiedInterpolants, 10960330 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4314 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 26 InterpolantComputations, 7 PerfectInterpolantSequences, 4872/5512 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_label12_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-33-45-996.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label12_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-33-45-996.csv Completed graceful shutdown