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/Problem03_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:24:51,251 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:24:51,254 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:24:51,269 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:24:51,270 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:24:51,271 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:24:51,272 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:24:51,274 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:24:51,278 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:24:51,279 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:24:51,288 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:24:51,288 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:24:51,289 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:24:51,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:24:51,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:24:51,295 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:24:51,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:24:51,301 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:24:51,303 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:24:51,305 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:24:51,309 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:24:51,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:24:51,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:24:51,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:24:51,317 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:24:51,318 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:24:51,319 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:24:51,320 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:24:51,324 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:24:51,325 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:24:51,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:24:51,326 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:24:51,326 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:24:51,327 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:24:51,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:24:51,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:24:51,331 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 [2018-09-10 10:24:51,346 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:24:51,346 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:24:51,347 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:24:51,347 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:24:51,348 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:24:51,348 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:24:51,348 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:24:51,348 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:24:51,348 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:24:51,349 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:24:51,349 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:24:51,349 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:24:51,350 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:24:51,350 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:24:51,350 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:24:51,350 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:24:51,350 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:24:51,351 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:24:51,351 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:24:51,351 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:24:51,351 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:24:51,352 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:24:51,352 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:24:51,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:24:51,352 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:24:51,352 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:24:51,353 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:24:51,353 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:24:51,353 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:24:51,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:24:51,354 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:24:51,354 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:24:51,354 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:24:51,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:24:51,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:24:51,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:24:51,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:24:51,416 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:24:51,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label17_true-unreach-call.c [2018-09-10 10:24:51,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dc6a0f7/6fd9421eb6084362b14e88d1610d56e3/FLAG85fcbaa13 [2018-09-10 10:24:52,106 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:24:52,108 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label17_true-unreach-call.c [2018-09-10 10:24:52,136 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dc6a0f7/6fd9421eb6084362b14e88d1610d56e3/FLAG85fcbaa13 [2018-09-10 10:24:52,157 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dc6a0f7/6fd9421eb6084362b14e88d1610d56e3 [2018-09-10 10:24:52,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:24:52,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:24:52,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:24:52,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:24:52,180 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:24:52,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:24:52" (1/1) ... [2018-09-10 10:24:52,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f93a2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:52, skipping insertion in model container [2018-09-10 10:24:52,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:24:52" (1/1) ... [2018-09-10 10:24:52,486 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:24:52,987 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:24:53,011 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:24:53,593 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:24:53,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53 WrapperNode [2018-09-10 10:24:53,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:24:53,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:24:53,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:24:53,670 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:24:53,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:53,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:53,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:24:53,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:24:53,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:24:53,844 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:24:54,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... [2018-09-10 10:24:54,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:24:54,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:24:54,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:24:54,253 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:24:54,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:24:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:24:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:24:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 10:24:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 10:24:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:24:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:24:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:24:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:24:59,379 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:24:59,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:24:59 BoogieIcfgContainer [2018-09-10 10:24:59,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:24:59,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:24:59,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:24:59,386 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:24:59,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:24:52" (1/3) ... [2018-09-10 10:24:59,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2296748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:24:59, skipping insertion in model container [2018-09-10 10:24:59,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:24:53" (2/3) ... [2018-09-10 10:24:59,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2296748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:24:59, skipping insertion in model container [2018-09-10 10:24:59,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:24:59" (3/3) ... [2018-09-10 10:24:59,393 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label17_true-unreach-call.c [2018-09-10 10:24:59,404 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:24:59,415 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:24:59,483 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:24:59,484 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:24:59,484 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:24:59,484 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:24:59,484 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:24:59,484 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:24:59,485 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:24:59,485 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:24:59,485 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:24:59,532 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-09-10 10:24:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-09-10 10:24:59,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:24:59,567 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:24:59,568 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:24:59,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1877378719, now seen corresponding path program 1 times [2018-09-10 10:24:59,578 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:24:59,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:24:59,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:24:59,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:24:59,639 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:24:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:00,549 WARN L175 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-09-10 10:25:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:00,824 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:25:00,824 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 10:25:00,824 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:25:00,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 10:25:00,844 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 10:25:00,844 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 10:25:00,846 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-09-10 10:25:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:04,534 INFO L93 Difference]: Finished difference Result 1057 states and 1905 transitions. [2018-09-10 10:25:04,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 10:25:04,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2018-09-10 10:25:04,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:04,562 INFO L225 Difference]: With dead ends: 1057 [2018-09-10 10:25:04,562 INFO L226 Difference]: Without dead ends: 739 [2018-09-10 10:25:04,571 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 10:25:04,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2018-09-10 10:25:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 528. [2018-09-10 10:25:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-10 10:25:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 879 transitions. [2018-09-10 10:25:04,672 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 879 transitions. Word has length 206 [2018-09-10 10:25:04,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:04,673 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 879 transitions. [2018-09-10 10:25:04,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 10:25:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 879 transitions. [2018-09-10 10:25:04,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-10 10:25:04,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:04,683 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:04,683 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:04,684 INFO L82 PathProgramCache]: Analyzing trace with hash 809544677, now seen corresponding path program 1 times [2018-09-10 10:25:04,684 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:04,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:04,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:04,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:04,685 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:05,098 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:25:05,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:25:05,099 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:25:05,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:25:05,101 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:25:05,101 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:25:05,102 INFO L87 Difference]: Start difference. First operand 528 states and 879 transitions. Second operand 3 states. [2018-09-10 10:25:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:07,217 INFO L93 Difference]: Finished difference Result 1474 states and 2530 transitions. [2018-09-10 10:25:07,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:25:07,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-09-10 10:25:07,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:07,227 INFO L225 Difference]: With dead ends: 1474 [2018-09-10 10:25:07,227 INFO L226 Difference]: Without dead ends: 952 [2018-09-10 10:25:07,235 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:25:07,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2018-09-10 10:25:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 951. [2018-09-10 10:25:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2018-09-10 10:25:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1506 transitions. [2018-09-10 10:25:07,293 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1506 transitions. Word has length 219 [2018-09-10 10:25:07,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:07,295 INFO L480 AbstractCegarLoop]: Abstraction has 951 states and 1506 transitions. [2018-09-10 10:25:07,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:25:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1506 transitions. [2018-09-10 10:25:07,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-09-10 10:25:07,301 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:07,303 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:07,303 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:07,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1923560564, now seen corresponding path program 1 times [2018-09-10 10:25:07,305 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:07,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:07,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:07,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:07,306 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:07,595 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:07,595 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 [2018-09-10 10:25:07,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:07,606 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:07,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:08,061 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:08,936 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:08,936 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 [2018-09-10 10:25:08,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:08,956 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:09,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:09,578 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:09,812 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:25:09,812 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 14 [2018-09-10 10:25:09,813 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:25:09,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-10 10:25:09,814 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-10 10:25:09,814 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-09-10 10:25:09,815 INFO L87 Difference]: Start difference. First operand 951 states and 1506 transitions. Second operand 8 states. [2018-09-10 10:25:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:16,676 INFO L93 Difference]: Finished difference Result 3675 states and 6335 transitions. [2018-09-10 10:25:16,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 10:25:16,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2018-09-10 10:25:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:16,701 INFO L225 Difference]: With dead ends: 3675 [2018-09-10 10:25:16,701 INFO L226 Difference]: Without dead ends: 2730 [2018-09-10 10:25:16,711 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 913 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-09-10 10:25:16,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2018-09-10 10:25:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2661. [2018-09-10 10:25:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2661 states. [2018-09-10 10:25:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3946 transitions. [2018-09-10 10:25:16,815 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3946 transitions. Word has length 230 [2018-09-10 10:25:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:16,815 INFO L480 AbstractCegarLoop]: Abstraction has 2661 states and 3946 transitions. [2018-09-10 10:25:16,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-10 10:25:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3946 transitions. [2018-09-10 10:25:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-09-10 10:25:16,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:16,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:16,830 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:16,830 INFO L82 PathProgramCache]: Analyzing trace with hash 746176118, now seen corresponding path program 1 times [2018-09-10 10:25:16,831 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:16,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:16,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:16,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:16,832 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:17,140 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:25:17,140 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:25:17,141 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:25:17,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:25:17,142 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:25:17,142 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:25:17,142 INFO L87 Difference]: Start difference. First operand 2661 states and 3946 transitions. Second operand 3 states. [2018-09-10 10:25:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:18,731 INFO L93 Difference]: Finished difference Result 7865 states and 12087 transitions. [2018-09-10 10:25:18,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:25:18,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2018-09-10 10:25:18,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:18,769 INFO L225 Difference]: With dead ends: 7865 [2018-09-10 10:25:18,770 INFO L226 Difference]: Without dead ends: 5210 [2018-09-10 10:25:18,788 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:25:18,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2018-09-10 10:25:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5192. [2018-09-10 10:25:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5192 states. [2018-09-10 10:25:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 7751 transitions. [2018-09-10 10:25:18,965 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 7751 transitions. Word has length 239 [2018-09-10 10:25:18,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:18,965 INFO L480 AbstractCegarLoop]: Abstraction has 5192 states and 7751 transitions. [2018-09-10 10:25:18,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:25:18,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 7751 transitions. [2018-09-10 10:25:18,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-09-10 10:25:18,994 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:18,995 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:18,995 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:18,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1914171249, now seen corresponding path program 1 times [2018-09-10 10:25:18,995 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:18,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:18,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:18,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:18,997 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:19,329 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:19,329 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 [2018-09-10 10:25:19,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:19,340 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:19,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:19,980 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:20,675 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:25:20,675 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 10:25:20,675 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:25:20,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:25:20,676 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:25:20,677 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 10:25:20,678 INFO L87 Difference]: Start difference. First operand 5192 states and 7751 transitions. Second operand 5 states. [2018-09-10 10:25:22,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:22,821 INFO L93 Difference]: Finished difference Result 10877 states and 16315 transitions. [2018-09-10 10:25:22,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 10:25:22,821 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 253 [2018-09-10 10:25:22,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:22,849 INFO L225 Difference]: With dead ends: 10877 [2018-09-10 10:25:22,850 INFO L226 Difference]: Without dead ends: 5691 [2018-09-10 10:25:22,874 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 498 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-09-10 10:25:22,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2018-09-10 10:25:23,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5538. [2018-09-10 10:25:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5538 states. [2018-09-10 10:25:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 7651 transitions. [2018-09-10 10:25:23,029 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 7651 transitions. Word has length 253 [2018-09-10 10:25:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:23,029 INFO L480 AbstractCegarLoop]: Abstraction has 5538 states and 7651 transitions. [2018-09-10 10:25:23,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:25:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 7651 transitions. [2018-09-10 10:25:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-09-10 10:25:23,050 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:23,050 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:23,051 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:23,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1674958284, now seen corresponding path program 1 times [2018-09-10 10:25:23,051 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:23,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:23,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:23,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:23,052 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 87 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:23,444 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:23,444 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 [2018-09-10 10:25:23,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:23,458 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:23,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 74 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:23,997 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:24,291 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:24,292 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 [2018-09-10 10:25:24,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:24,314 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:24,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 74 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:25,398 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:25,866 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:25:25,866 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4, 4, 4] total 13 [2018-09-10 10:25:25,866 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:25:25,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-10 10:25:25,867 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-10 10:25:25,867 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:25:25,867 INFO L87 Difference]: Start difference. First operand 5538 states and 7651 transitions. Second operand 8 states. [2018-09-10 10:25:28,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:28,449 INFO L93 Difference]: Finished difference Result 15957 states and 23114 transitions. [2018-09-10 10:25:28,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 10:25:28,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 281 [2018-09-10 10:25:28,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:28,519 INFO L225 Difference]: With dead ends: 15957 [2018-09-10 10:25:28,519 INFO L226 Difference]: Without dead ends: 10425 [2018-09-10 10:25:28,547 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 1118 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2018-09-10 10:25:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10425 states. [2018-09-10 10:25:28,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10425 to 10316. [2018-09-10 10:25:28,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10316 states. [2018-09-10 10:25:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10316 states to 10316 states and 13536 transitions. [2018-09-10 10:25:28,863 INFO L78 Accepts]: Start accepts. Automaton has 10316 states and 13536 transitions. Word has length 281 [2018-09-10 10:25:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:28,864 INFO L480 AbstractCegarLoop]: Abstraction has 10316 states and 13536 transitions. [2018-09-10 10:25:28,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-10 10:25:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 10316 states and 13536 transitions. [2018-09-10 10:25:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-09-10 10:25:28,894 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:28,894 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 10:25:28,894 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:28,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1208828973, now seen corresponding path program 1 times [2018-09-10 10:25:28,895 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:28,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:28,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:28,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:28,896 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:29,244 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:25:29,244 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:25:29,244 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:25:29,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:25:29,246 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:25:29,246 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:25:29,246 INFO L87 Difference]: Start difference. First operand 10316 states and 13536 transitions. Second operand 3 states. [2018-09-10 10:25:32,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:32,386 INFO L93 Difference]: Finished difference Result 29273 states and 38957 transitions. [2018-09-10 10:25:32,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:25:32,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 285 [2018-09-10 10:25:32,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:32,456 INFO L225 Difference]: With dead ends: 29273 [2018-09-10 10:25:32,456 INFO L226 Difference]: Without dead ends: 18963 [2018-09-10 10:25:32,487 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:25:32,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18963 states. [2018-09-10 10:25:32,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18963 to 18957. [2018-09-10 10:25:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18957 states. [2018-09-10 10:25:32,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18957 states to 18957 states and 24303 transitions. [2018-09-10 10:25:32,898 INFO L78 Accepts]: Start accepts. Automaton has 18957 states and 24303 transitions. Word has length 285 [2018-09-10 10:25:32,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:32,898 INFO L480 AbstractCegarLoop]: Abstraction has 18957 states and 24303 transitions. [2018-09-10 10:25:32,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:25:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18957 states and 24303 transitions. [2018-09-10 10:25:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-09-10 10:25:32,940 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:32,940 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:32,940 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:32,941 INFO L82 PathProgramCache]: Analyzing trace with hash 318095164, now seen corresponding path program 1 times [2018-09-10 10:25:32,941 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:32,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:32,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:32,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:32,942 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:33,489 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:33,490 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:33,490 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:25:33,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:33,508 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:33,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:34,036 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:34,181 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:34,181 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:25:34,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:34,197 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:34,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 78 proven. 46 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:34,881 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:35,110 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-10 10:25:35,113 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:25:35,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 7, 5] total 9 [2018-09-10 10:25:35,114 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:25:35,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:25:35,115 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:25:35,115 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:25:35,116 INFO L87 Difference]: Start difference. First operand 18957 states and 24303 transitions. Second operand 6 states. [2018-09-10 10:25:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:38,749 INFO L93 Difference]: Finished difference Result 41041 states and 54830 transitions. [2018-09-10 10:25:38,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 10:25:38,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2018-09-10 10:25:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:38,839 INFO L225 Difference]: With dead ends: 41041 [2018-09-10 10:25:38,839 INFO L226 Difference]: Without dead ends: 22090 [2018-09-10 10:25:38,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1166 GetRequests, 1150 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-09-10 10:25:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22090 states. [2018-09-10 10:25:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22090 to 21670. [2018-09-10 10:25:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21670 states. [2018-09-10 10:25:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21670 states to 21670 states and 26369 transitions. [2018-09-10 10:25:39,415 INFO L78 Accepts]: Start accepts. Automaton has 21670 states and 26369 transitions. Word has length 289 [2018-09-10 10:25:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:39,415 INFO L480 AbstractCegarLoop]: Abstraction has 21670 states and 26369 transitions. [2018-09-10 10:25:39,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:25:39,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21670 states and 26369 transitions. [2018-09-10 10:25:39,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-09-10 10:25:39,454 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:39,454 INFO L376 BasicCegarLoop]: trace histogram [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, 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] [2018-09-10 10:25:39,454 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:39,455 INFO L82 PathProgramCache]: Analyzing trace with hash -603007656, now seen corresponding path program 1 times [2018-09-10 10:25:39,455 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:39,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:39,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:39,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:39,456 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 163 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:40,075 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:40,075 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:25:40,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:40,086 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:40,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-10 10:25:40,473 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-10 10:25:40,676 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:40,676 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:25:40,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:40,695 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:41,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 173 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:25:41,722 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-10 10:25:41,886 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:25:41,886 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 6, 5] total 12 [2018-09-10 10:25:41,886 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:25:41,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:25:41,888 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:25:41,888 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-09-10 10:25:41,888 INFO L87 Difference]: Start difference. First operand 21670 states and 26369 transitions. Second operand 9 states. [2018-09-10 10:25:53,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:25:53,533 INFO L93 Difference]: Finished difference Result 90644 states and 125900 transitions. [2018-09-10 10:25:53,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-10 10:25:53,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 353 [2018-09-10 10:25:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:25:53,961 INFO L225 Difference]: With dead ends: 90644 [2018-09-10 10:25:53,961 INFO L226 Difference]: Without dead ends: 70656 [2018-09-10 10:25:54,071 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1436 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=359, Invalid=1447, Unknown=0, NotChecked=0, Total=1806 [2018-09-10 10:25:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70656 states. [2018-09-10 10:25:55,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70656 to 67477. [2018-09-10 10:25:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67477 states. [2018-09-10 10:25:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67477 states to 67477 states and 81405 transitions. [2018-09-10 10:25:55,890 INFO L78 Accepts]: Start accepts. Automaton has 67477 states and 81405 transitions. Word has length 353 [2018-09-10 10:25:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:25:55,890 INFO L480 AbstractCegarLoop]: Abstraction has 67477 states and 81405 transitions. [2018-09-10 10:25:55,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:25:55,891 INFO L276 IsEmpty]: Start isEmpty. Operand 67477 states and 81405 transitions. [2018-09-10 10:25:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-09-10 10:25:56,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:25:56,313 INFO L376 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:25:56,313 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:25:56,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1695711753, now seen corresponding path program 1 times [2018-09-10 10:25:56,314 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:25:56,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:56,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:56,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:25:56,315 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:25:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:57,026 WARN L175 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-10 10:25:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 212 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-10 10:25:57,356 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:57,356 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:25:57,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:57,367 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:57,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 212 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-09-10 10:25:57,831 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-09-10 10:25:58,089 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:25:58,089 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:25:58,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:25:58,105 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:25:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:25:58,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:25:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 212 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-09-10 10:25:59,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:25:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-09-10 10:25:59,311 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:25:59,311 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4, 4, 4] total 13 [2018-09-10 10:25:59,311 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:25:59,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-10 10:25:59,313 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-10 10:25:59,313 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:25:59,314 INFO L87 Difference]: Start difference. First operand 67477 states and 81405 transitions. Second operand 8 states. [2018-09-10 10:26:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:26:06,361 INFO L93 Difference]: Finished difference Result 137469 states and 178322 transitions. [2018-09-10 10:26:06,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-09-10 10:26:06,361 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 404 [2018-09-10 10:26:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:26:06,774 INFO L225 Difference]: With dead ends: 137469 [2018-09-10 10:26:06,774 INFO L226 Difference]: Without dead ends: 71168 [2018-09-10 10:26:06,954 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1668 GetRequests, 1630 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=296, Invalid=1036, Unknown=0, NotChecked=0, Total=1332 [2018-09-10 10:26:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71168 states. [2018-09-10 10:26:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71168 to 67229. [2018-09-10 10:26:09,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67229 states. [2018-09-10 10:26:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67229 states to 67229 states and 78116 transitions. [2018-09-10 10:26:09,505 INFO L78 Accepts]: Start accepts. Automaton has 67229 states and 78116 transitions. Word has length 404 [2018-09-10 10:26:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:26:09,506 INFO L480 AbstractCegarLoop]: Abstraction has 67229 states and 78116 transitions. [2018-09-10 10:26:09,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-10 10:26:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 67229 states and 78116 transitions. [2018-09-10 10:26:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2018-09-10 10:26:09,658 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:26:09,659 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:26:09,659 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:26:09,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1781737315, now seen corresponding path program 1 times [2018-09-10 10:26:09,660 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:26:09,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:26:09,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:09,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:26:09,661 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:26:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:10,147 WARN L175 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:26:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 400 proven. 256 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-09-10 10:26:10,671 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:26:10,671 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:26:10,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:10,679 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:26:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:11,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:26:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2018-09-10 10:26:11,461 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:26:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 400 proven. 256 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-09-10 10:26:11,895 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:26:11,896 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-09-10 10:26:11,896 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:26:11,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:26:11,897 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:26:11,897 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:26:11,897 INFO L87 Difference]: Start difference. First operand 67229 states and 78116 transitions. Second operand 6 states. [2018-09-10 10:26:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:26:15,321 INFO L93 Difference]: Finished difference Result 131637 states and 155786 transitions. [2018-09-10 10:26:15,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 10:26:15,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 628 [2018-09-10 10:26:15,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:26:15,579 INFO L225 Difference]: With dead ends: 131637 [2018-09-10 10:26:15,579 INFO L226 Difference]: Without dead ends: 68888 [2018-09-10 10:26:15,715 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 1248 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-09-10 10:26:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68888 states. [2018-09-10 10:26:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68888 to 67328. [2018-09-10 10:26:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67328 states. [2018-09-10 10:26:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67328 states to 67328 states and 78033 transitions. [2018-09-10 10:26:17,501 INFO L78 Accepts]: Start accepts. Automaton has 67328 states and 78033 transitions. Word has length 628 [2018-09-10 10:26:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:26:17,502 INFO L480 AbstractCegarLoop]: Abstraction has 67328 states and 78033 transitions. [2018-09-10 10:26:17,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:26:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 67328 states and 78033 transitions. [2018-09-10 10:26:17,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2018-09-10 10:26:17,639 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:26:17,640 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:26:17,640 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:26:17,641 INFO L82 PathProgramCache]: Analyzing trace with hash 97156801, now seen corresponding path program 1 times [2018-09-10 10:26:17,641 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:26:17,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:26:17,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:17,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:26:17,642 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:26:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 509 proven. 195 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-09-10 10:26:18,212 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:26:18,212 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:26:18,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:18,222 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:26:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:18,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:26:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 681 proven. 4 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2018-09-10 10:26:19,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:26:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 459 proven. 425 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-09-10 10:26:20,227 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:26:20,228 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 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:26:20,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:20,243 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:26:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:21,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:26:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 681 proven. 4 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2018-09-10 10:26:21,588 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:26:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 459 proven. 425 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-09-10 10:26:21,969 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:26:21,969 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:26:21,969 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:26:21,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:26:21,971 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:26:21,971 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:26:21,972 INFO L87 Difference]: Start difference. First operand 67328 states and 78033 transitions. Second operand 9 states. [2018-09-10 10:26:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:26:32,032 INFO L93 Difference]: Finished difference Result 312810 states and 397713 transitions. [2018-09-10 10:26:32,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-10 10:26:32,033 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 649 [2018-09-10 10:26:32,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:26:32,906 INFO L225 Difference]: With dead ends: 312810 [2018-09-10 10:26:32,907 INFO L226 Difference]: Without dead ends: 250086 [2018-09-10 10:26:33,036 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2651 GetRequests, 2604 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2018-09-10 10:26:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250086 states. [2018-09-10 10:26:38,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250086 to 238963. [2018-09-10 10:26:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238963 states. [2018-09-10 10:26:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238963 states to 238963 states and 274199 transitions. [2018-09-10 10:26:38,614 INFO L78 Accepts]: Start accepts. Automaton has 238963 states and 274199 transitions. Word has length 649 [2018-09-10 10:26:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:26:38,614 INFO L480 AbstractCegarLoop]: Abstraction has 238963 states and 274199 transitions. [2018-09-10 10:26:38,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:26:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 238963 states and 274199 transitions. [2018-09-10 10:26:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2018-09-10 10:26:39,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:26:39,094 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:26:39,094 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:26:39,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1975198502, now seen corresponding path program 1 times [2018-09-10 10:26:39,095 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:26:39,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:26:39,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:39,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:26:39,096 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:26:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 636 proven. 332 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-09-10 10:26:41,310 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:26:41,310 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:26:41,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:41,319 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:26:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:41,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:26:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 933 proven. 6 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2018-09-10 10:26:42,351 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:26:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 641 proven. 334 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2018-09-10 10:26:43,057 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:26:43,057 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 17 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 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:26:43,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:26:43,074 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:26:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:26:44,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:26:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 902 proven. 4 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2018-09-10 10:26:48,380 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:26:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 516 proven. 589 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-09-10 10:26:49,142 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:26:49,143 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8, 8, 8] total 14 [2018-09-10 10:26:49,143 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:26:49,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-10 10:26:49,145 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-10 10:26:49,145 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-10 10:26:49,145 INFO L87 Difference]: Start difference. First operand 238963 states and 274199 transitions. Second operand 11 states. [2018-09-10 10:27:03,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:27:03,181 INFO L93 Difference]: Finished difference Result 630609 states and 759485 transitions. [2018-09-10 10:27:03,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-10 10:27:03,181 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 698 [2018-09-10 10:27:03,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:27:03,182 INFO L225 Difference]: With dead ends: 630609 [2018-09-10 10:27:03,182 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:27:04,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2827 GetRequests, 2801 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=537, Unknown=0, NotChecked=0, Total=756 [2018-09-10 10:27:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:27:04,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:27:04,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:27:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:27:04,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 698 [2018-09-10 10:27:04,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:27:04,773 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:27:04,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-10 10:27:04,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:27:04,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:27:04,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:27:08,145 WARN L175 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-10 10:27:17,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:17,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,517 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:18,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:19,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:20,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:21,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:21,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:21,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:21,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:21,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:21,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:22,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:22,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:22,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:22,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:22,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:23,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:23,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:24,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:25,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:25,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:25,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:25,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:26,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:27,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:28,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:28,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:28,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:28,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:28,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:28,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:29,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:30,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:30,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:30,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:30,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:30,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:31,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:32,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:33,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:33,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:33,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:33,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:34,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:34,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:34,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:34,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:34,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:37,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:37,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:38,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:38,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:38,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:38,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:38,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:39,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:41,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:42,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:42,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:43,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:43,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:43,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:43,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:43,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:44,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:44,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:44,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:52,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:52,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:54,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:55,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:56,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:56,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:27:59,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:01,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:03,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:03,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:03,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:03,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:03,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:04,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:04,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:04,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:04,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:09,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:09,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:09,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:09,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:11,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:11,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:12,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:15,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:15,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:16,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:17,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:17,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:17,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:17,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:23,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:23,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:23,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:23,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:24,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:26,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:26,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:30,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:37,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:37,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:37,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:38,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:38,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:38,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:28:39,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-09-10 10:28:43,880 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-10 10:28:43,882 INFO L168 Benchmark]: Toolchain (without parser) took 231711.70 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-09-10 10:28:43,883 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:28:43,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1495.91 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-10 10:28:43,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-10 10:28:43,885 INFO L168 Benchmark]: Boogie Preprocessor took 408.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -925.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2018-09-10 10:28:43,886 INFO L168 Benchmark]: RCFGBuilder took 5127.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 291.5 MB). Peak memory consumption was 291.5 MB. Max. memory is 7.1 GB. [2018-09-10 10:28:43,886 INFO L168 Benchmark]: TraceAbstraction took 224499.61 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.8 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -526.5 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-09-10 10:28:43,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1495.91 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 173.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 408.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -925.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5127.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 291.5 MB). Peak memory consumption was 291.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224499.61 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.8 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -526.5 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1632]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 10627. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label17_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-28-43-904.csv Completed graceful shutdown