java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:27:03,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:27:03,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:27:03,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:27:03,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:27:03,410 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:27:03,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:27:03,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:27:03,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:27:03,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:27:03,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:27:03,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:27:03,430 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:27:03,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:27:03,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:27:03,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:27:03,435 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:27:03,437 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:27:03,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:27:03,441 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:27:03,442 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:27:03,447 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:27:03,449 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:27:03,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:27:03,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:27:03,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:27:03,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:27:03,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:27:03,453 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:27:03,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:27:03,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:27:03,454 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:27:03,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:27:03,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:27:03,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:27:03,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:27:03,457 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 [2018-07-24 12:27:03,478 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:27:03,478 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:27:03,479 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:27:03,479 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:27:03,479 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:27:03,480 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:27:03,480 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:27:03,480 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:27:03,480 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:27:03,481 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:27:03,481 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:27:03,482 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:27:03,482 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:27:03,482 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:27:03,483 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:27:03,483 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:27:03,483 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:27:03,483 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:27:03,484 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:27:03,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:27:03,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:27:03,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:27:03,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:27:03,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:27:03,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:27:03,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:27:03,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:27:03,486 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:27:03,487 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:27:03,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:27:03,487 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:27:03,487 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:27:03,487 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:27:03,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:27:03,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:27:03,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:27:03,580 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:27:03,581 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:27:03,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c [2018-07-24 12:27:03,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d892b1/9d29f15a89644bcfae1a7f9d834625f7/FLAGb0e4337b7 [2018-07-24 12:27:04,343 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:27:04,345 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c [2018-07-24 12:27:04,377 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d892b1/9d29f15a89644bcfae1a7f9d834625f7/FLAGb0e4337b7 [2018-07-24 12:27:04,397 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d892b1/9d29f15a89644bcfae1a7f9d834625f7 [2018-07-24 12:27:04,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:27:04,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:27:04,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:27:04,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:27:04,423 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:27:04,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:27:04" (1/1) ... [2018-07-24 12:27:04,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db50687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:04, skipping insertion in model container [2018-07-24 12:27:04,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:27:04" (1/1) ... [2018-07-24 12:27:04,759 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:27:05,599 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:27:05,622 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:27:06,010 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:27:06,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06 WrapperNode [2018-07-24 12:27:06,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:27:06,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:27:06,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:27:06,236 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:27:06,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:06,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:06,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:27:06,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:27:06,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:27:06,491 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:27:07,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (1/1) ... [2018-07-24 12:27:07,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:27:07,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:27:07,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:27:07,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:27:07,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (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 [2018-07-24 12:27:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:27:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:27:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:27:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:27:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:27:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:27:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:27:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:27:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:27:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:27:18,865 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:27:18,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:27:18 BoogieIcfgContainer [2018-07-24 12:27:18,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:27:18,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:27:18,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:27:18,873 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:27:18,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:27:04" (1/3) ... [2018-07-24 12:27:18,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163ebdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:27:18, skipping insertion in model container [2018-07-24 12:27:18,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:27:06" (2/3) ... [2018-07-24 12:27:18,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163ebdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:27:18, skipping insertion in model container [2018-07-24 12:27:18,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:27:18" (3/3) ... [2018-07-24 12:27:18,878 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label49_false-unreach-call.c [2018-07-24 12:27:18,890 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:27:18,906 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:27:18,988 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:27:18,989 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:27:18,989 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:27:18,990 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:27:18,990 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:27:18,990 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:27:18,990 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:27:18,990 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:27:18,990 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:27:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 12:27:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-24 12:27:19,053 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:27:19,060 INFO L353 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] [2018-07-24 12:27:19,061 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:27:19,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1215521116, now seen corresponding path program 1 times [2018-07-24 12:27:19,071 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:27:19,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:19,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:19,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:19,137 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:27:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:19,619 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 12:27:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:19,633 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:27:19,633 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:27:19,633 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:27:19,639 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:27:19,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:27:19,656 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:27:19,658 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 12:27:33,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:27:33,528 INFO L93 Difference]: Finished difference Result 2142 states and 3971 transitions. [2018-07-24 12:27:33,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:27:33,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-07-24 12:27:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:27:33,562 INFO L225 Difference]: With dead ends: 2142 [2018-07-24 12:27:33,563 INFO L226 Difference]: Without dead ends: 1532 [2018-07-24 12:27:33,576 INFO L573 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 [2018-07-24 12:27:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2018-07-24 12:27:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1519. [2018-07-24 12:27:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-07-24 12:27:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2456 transitions. [2018-07-24 12:27:33,738 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2456 transitions. Word has length 22 [2018-07-24 12:27:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:27:33,739 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2456 transitions. [2018-07-24 12:27:33,739 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:27:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2456 transitions. [2018-07-24 12:27:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-24 12:27:33,748 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:27:33,748 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:27:33,749 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:27:33,749 INFO L82 PathProgramCache]: Analyzing trace with hash -820874318, now seen corresponding path program 1 times [2018-07-24 12:27:33,751 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:27:33,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:33,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:33,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:33,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:27:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:34,287 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:27:34,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:27:34,288 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:27:34,291 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:27:34,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:27:34,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:27:34,292 INFO L87 Difference]: Start difference. First operand 1519 states and 2456 transitions. Second operand 6 states. [2018-07-24 12:27:52,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:27:52,461 INFO L93 Difference]: Finished difference Result 5751 states and 9635 transitions. [2018-07-24 12:27:52,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:27:52,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-07-24 12:27:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:27:52,496 INFO L225 Difference]: With dead ends: 5751 [2018-07-24 12:27:52,496 INFO L226 Difference]: Without dead ends: 4238 [2018-07-24 12:27:52,510 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:27:52,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2018-07-24 12:27:52,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 4229. [2018-07-24 12:27:52,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4229 states. [2018-07-24 12:27:52,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4229 states to 4229 states and 5788 transitions. [2018-07-24 12:27:52,651 INFO L78 Accepts]: Start accepts. Automaton has 4229 states and 5788 transitions. Word has length 94 [2018-07-24 12:27:52,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:27:52,652 INFO L471 AbstractCegarLoop]: Abstraction has 4229 states and 5788 transitions. [2018-07-24 12:27:52,652 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:27:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4229 states and 5788 transitions. [2018-07-24 12:27:52,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-24 12:27:52,658 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:27:52,658 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:27:52,658 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:27:52,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1060263342, now seen corresponding path program 1 times [2018-07-24 12:27:52,659 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:27:52,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:52,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:52,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:27:52,662 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:27:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:52,953 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:27:52,953 INFO L191 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 [2018-07-24 12:27:52,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:27:52,979 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:27:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:27:53,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:27:55,607 WARN L169 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-07-24 12:27:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:55,762 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:27:56,712 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-07-24 12:27:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:27:57,162 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:27:57,163 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-24 12:27:57,163 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:27:57,165 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:27:57,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:27:57,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:27:57,166 INFO L87 Difference]: Start difference. First operand 4229 states and 5788 transitions. Second operand 6 states. [2018-07-24 12:30:20,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:30:20,259 INFO L93 Difference]: Finished difference Result 11661 states and 17371 transitions. [2018-07-24 12:30:20,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:30:20,262 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-07-24 12:30:20,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:30:20,316 INFO L225 Difference]: With dead ends: 11661 [2018-07-24 12:30:20,316 INFO L226 Difference]: Without dead ends: 7438 [2018-07-24 12:30:20,355 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:30:20,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7438 states. [2018-07-24 12:30:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7438 to 6948. [2018-07-24 12:30:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6948 states. [2018-07-24 12:30:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6948 states to 6948 states and 10624 transitions. [2018-07-24 12:30:20,612 INFO L78 Accepts]: Start accepts. Automaton has 6948 states and 10624 transitions. Word has length 97 [2018-07-24 12:30:20,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:30:20,613 INFO L471 AbstractCegarLoop]: Abstraction has 6948 states and 10624 transitions. [2018-07-24 12:30:20,613 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:30:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6948 states and 10624 transitions. [2018-07-24 12:30:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-24 12:30:20,617 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:30:20,617 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:30:20,620 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:30:20,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1246576622, now seen corresponding path program 1 times [2018-07-24 12:30:20,621 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:30:20,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:30:20,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:30:20,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:30:20,622 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:30:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:30:20,881 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:30:20,881 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:30:20,882 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:30:20,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:30:20,901 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:30:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:30:20,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:30:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:30:21,101 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:30:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:30:21,208 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 12:30:21,208 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 12:30:21,208 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:30:21,209 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:30:21,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:30:21,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:30:21,210 INFO L87 Difference]: Start difference. First operand 6948 states and 10624 transitions. Second operand 3 states. [2018-07-24 12:30:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:30:28,630 INFO L93 Difference]: Finished difference Result 20475 states and 33275 transitions. [2018-07-24 12:30:28,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:30:28,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2018-07-24 12:30:28,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:30:28,730 INFO L225 Difference]: With dead ends: 20475 [2018-07-24 12:30:28,730 INFO L226 Difference]: Without dead ends: 13533 [2018-07-24 12:30:28,793 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 219 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:30:28,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13533 states. [2018-07-24 12:30:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13533 to 13528. [2018-07-24 12:30:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13528 states. [2018-07-24 12:30:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13528 states to 13528 states and 21358 transitions. [2018-07-24 12:30:29,230 INFO L78 Accepts]: Start accepts. Automaton has 13528 states and 21358 transitions. Word has length 110 [2018-07-24 12:30:29,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:30:29,231 INFO L471 AbstractCegarLoop]: Abstraction has 13528 states and 21358 transitions. [2018-07-24 12:30:29,231 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:30:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 13528 states and 21358 transitions. [2018-07-24 12:30:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-07-24 12:30:29,245 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:30:29,245 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:30:29,245 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:30:29,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1057235190, now seen corresponding path program 1 times [2018-07-24 12:30:29,250 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:30:29,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:30:29,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:30:29,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:30:29,251 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:30:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:30:29,570 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:30:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:30:30,016 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:30:30,016 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:30:30,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:30:30,017 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:30:30,017 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:30:30,017 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:30:30,017 INFO L87 Difference]: Start difference. First operand 13528 states and 21358 transitions. Second operand 6 states. [2018-07-24 12:30:39,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:30:39,626 INFO L93 Difference]: Finished difference Result 32783 states and 55444 transitions. [2018-07-24 12:30:39,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:30:39,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-07-24 12:30:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:30:39,752 INFO L225 Difference]: With dead ends: 32783 [2018-07-24 12:30:39,752 INFO L226 Difference]: Without dead ends: 19261 [2018-07-24 12:30:39,802 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:30:39,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19261 states. [2018-07-24 12:30:40,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19261 to 19101. [2018-07-24 12:30:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19101 states. [2018-07-24 12:30:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19101 states to 19101 states and 28673 transitions. [2018-07-24 12:30:40,361 INFO L78 Accepts]: Start accepts. Automaton has 19101 states and 28673 transitions. Word has length 208 [2018-07-24 12:30:40,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:30:40,362 INFO L471 AbstractCegarLoop]: Abstraction has 19101 states and 28673 transitions. [2018-07-24 12:30:40,362 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:30:40,362 INFO L276 IsEmpty]: Start isEmpty. Operand 19101 states and 28673 transitions. [2018-07-24 12:30:40,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-07-24 12:30:40,373 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:30:40,374 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:30:40,374 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:30:40,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1281225576, now seen corresponding path program 1 times [2018-07-24 12:30:40,377 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:30:40,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:30:40,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:30:40,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:30:40,379 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:30:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:30:41,101 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 12:30:41,400 WARN L169 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 12:30:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:30:41,829 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:30:41,829 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 12:30:41,829 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:30:41,830 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 12:30:41,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 12:30:41,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:30:41,830 INFO L87 Difference]: Start difference. First operand 19101 states and 28673 transitions. Second operand 7 states. [2018-07-24 12:31:09,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:31:09,764 INFO L93 Difference]: Finished difference Result 48228 states and 83622 transitions. [2018-07-24 12:31:09,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 12:31:09,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2018-07-24 12:31:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:31:09,985 INFO L225 Difference]: With dead ends: 48228 [2018-07-24 12:31:09,985 INFO L226 Difference]: Without dead ends: 29133 [2018-07-24 12:31:10,076 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:31:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29133 states. [2018-07-24 12:31:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29133 to 28082. [2018-07-24 12:31:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28082 states. [2018-07-24 12:31:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28082 states to 28082 states and 41677 transitions. [2018-07-24 12:31:11,150 INFO L78 Accepts]: Start accepts. Automaton has 28082 states and 41677 transitions. Word has length 248 [2018-07-24 12:31:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:31:11,151 INFO L471 AbstractCegarLoop]: Abstraction has 28082 states and 41677 transitions. [2018-07-24 12:31:11,151 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 12:31:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand 28082 states and 41677 transitions. [2018-07-24 12:31:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-24 12:31:11,163 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:31:11,164 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 12:31:11,164 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:31:11,164 INFO L82 PathProgramCache]: Analyzing trace with hash 2029468766, now seen corresponding path program 1 times [2018-07-24 12:31:11,164 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:31:11,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:31:11,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:31:11,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:31:11,166 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:31:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:31:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 55 proven. 209 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 12:31:11,549 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:31:11,549 INFO L191 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 [2018-07-24 12:31:11,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:31:11,557 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:31:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:31:11,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:31:11,995 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-07-24 12:31:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-24 12:31:12,534 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:31:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 55 proven. 211 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:31:13,325 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:31:13,325 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:31:13,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:31:13,355 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:31:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:31:13,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:31:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-24 12:31:13,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:31:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 55 proven. 211 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:31:14,578 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:31:14,578 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-07-24 12:31:14,578 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:31:14,579 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:31:14,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:31:14,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-24 12:31:14,580 INFO L87 Difference]: Start difference. First operand 28082 states and 41677 transitions. Second operand 11 states. Received shutdown request... [2018-07-24 12:31:15,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:31:15,009 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:31:15,015 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:31:15,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:31:15 BoogieIcfgContainer [2018-07-24 12:31:15,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:31:15,016 INFO L168 Benchmark]: Toolchain (without parser) took 250603.64 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -356.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-07-24 12:31:15,017 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-07-24 12:31:15,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1820.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-24 12:31:15,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 254.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2018-07-24 12:31:15,019 INFO L168 Benchmark]: Boogie Preprocessor took 849.70 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 919.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-07-24 12:31:15,020 INFO L168 Benchmark]: RCFGBuilder took 11527.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 497.8 MB). Peak memory consumption was 497.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:31:15,021 INFO L168 Benchmark]: TraceAbstraction took 236146.71 ms. Allocated memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: 500.2 MB). Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 54.7 MB). Peak memory consumption was 554.9 MB. Max. memory is 7.1 GB. [2018-07-24 12:31:15,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1820.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 254.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 849.70 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 919.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11527.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 497.8 MB). Peak memory consumption was 497.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236146.71 ms. Allocated memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: 500.2 MB). Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 54.7 MB). Peak memory consumption was 554.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 53). Cancelled while BasicCegarLoop was constructing difference of abstraction (28082states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (121 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 236.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 221.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2549 SDtfs, 9938 SDslu, 1754 SDs, 0 SdLazy, 19710 SolverSat, 4503 SolverUnsat, 67 SolverUnknown, 0 SolverNotchecked, 211.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1526 GetRequests, 1454 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28082occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 1728 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 1769 NumberOfCodeBlocks, 1769 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2483 ConstructedInterpolants, 266 QuantifiedInterpolants, 4192331 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1497 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 823/1490 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label49_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-31-15-059.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label49_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-31-15-059.csv Completed graceful shutdown