java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 17:11:20,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 17:11:20,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 17:11:20,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 17:11:20,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 17:11:20,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 17:11:20,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 17:11:20,421 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 17:11:20,423 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 17:11:20,424 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 17:11:20,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 17:11:20,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 17:11:20,428 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 17:11:20,428 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 17:11:20,429 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 17:11:20,430 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 17:11:20,431 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 17:11:20,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 17:11:20,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 17:11:20,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 17:11:20,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 17:11:20,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 17:11:20,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 17:11:20,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 17:11:20,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 17:11:20,453 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 17:11:20,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 17:11:20,454 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 17:11:20,455 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 17:11:20,456 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 17:11:20,456 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 17:11:20,456 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 17:11:20,457 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 17:11:20,457 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 17:11:20,458 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 17:11:20,458 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 17:11:20,459 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 17:11:20,474 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 17:11:20,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 17:11:20,475 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 17:11:20,475 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 17:11:20,475 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 17:11:20,476 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 17:11:20,476 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 17:11:20,476 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 17:11:20,476 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 17:11:20,476 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 17:11:20,477 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 17:11:20,477 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 17:11:20,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 17:11:20,478 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 17:11:20,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 17:11:20,478 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 17:11:20,478 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 17:11:20,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 17:11:20,479 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 17:11:20,479 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 17:11:20,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 17:11:20,480 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 17:11:20,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 17:11:20,480 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 17:11:20,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 17:11:20,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 17:11:20,481 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 17:11:20,481 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 17:11:20,481 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 17:11:20,481 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 17:11:20,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 17:11:20,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 17:11:20,482 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 17:11:20,482 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 17:11:20,482 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 17:11:20,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 17:11:20,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 17:11:20,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 17:11:20,573 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 17:11:20,574 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 17:11:20,575 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c [2018-07-21 17:11:20,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/47c93178b/2b7274e2309f4ed8ae0cc73a6d17079c/FLAG9edce73bb [2018-07-21 17:11:21,546 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 17:11:21,549 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c [2018-07-21 17:11:21,592 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/47c93178b/2b7274e2309f4ed8ae0cc73a6d17079c/FLAG9edce73bb [2018-07-21 17:11:21,613 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/47c93178b/2b7274e2309f4ed8ae0cc73a6d17079c [2018-07-21 17:11:21,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 17:11:21,633 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 17:11:21,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 17:11:21,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 17:11:21,646 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 17:11:21,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:11:21" (1/1) ... [2018-07-21 17:11:21,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37181870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:21, skipping insertion in model container [2018-07-21 17:11:21,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:11:21" (1/1) ... [2018-07-21 17:11:22,110 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 17:11:23,400 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 17:11:23,418 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 17:11:24,414 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 17:11:24,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24 WrapperNode [2018-07-21 17:11:24,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 17:11:24,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 17:11:24,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 17:11:24,729 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 17:11:24,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:24,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:25,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 17:11:25,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 17:11:25,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 17:11:25,215 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 17:11:25,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:25,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:25,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:25,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:26,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:26,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:26,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... [2018-07-21 17:11:26,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 17:11:26,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 17:11:26,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 17:11:26,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 17:11:26,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 17:11:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 17:11:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 17:11:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 17:11:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 17:11:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 17:11:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 17:11:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 17:11:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 17:11:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 17:11:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 17:11:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 17:11:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 17:11:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 17:11:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 17:11:37,837 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 17:11:37,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:11:37 BoogieIcfgContainer [2018-07-21 17:11:37,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 17:11:37,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 17:11:37,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 17:11:37,842 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 17:11:37,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:11:21" (1/3) ... [2018-07-21 17:11:37,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:11:37, skipping insertion in model container [2018-07-21 17:11:37,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:11:24" (2/3) ... [2018-07-21 17:11:37,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:11:37, skipping insertion in model container [2018-07-21 17:11:37,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:11:37" (3/3) ... [2018-07-21 17:11:37,846 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label33_true-unreach-call.c [2018-07-21 17:11:37,854 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 17:11:37,863 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 17:11:37,933 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 17:11:37,934 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 17:11:37,934 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 17:11:37,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 17:11:37,934 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 17:11:37,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 17:11:37,936 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 17:11:37,936 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 17:11:37,936 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 17:11:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 17:11:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-21 17:11:37,997 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:11:37,998 INFO L358 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] [2018-07-21 17:11:37,999 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:11:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash -56426380, now seen corresponding path program 1 times [2018-07-21 17:11:38,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:11:38,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:11:38,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:11:38,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:11:38,062 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:11:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:11:38,518 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 17:11:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:11:38,540 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:11:38,540 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 17:11:38,540 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:11:38,544 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 17:11:38,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 17:11:38,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 17:11:38,563 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-21 17:11:49,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:11:49,025 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-07-21 17:11:49,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 17:11:49,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-07-21 17:11:49,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:11:49,073 INFO L225 Difference]: With dead ends: 3093 [2018-07-21 17:11:49,073 INFO L226 Difference]: Without dead ends: 1971 [2018-07-21 17:11:49,090 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 17:11:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-07-21 17:11:49,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-07-21 17:11:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-07-21 17:11:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-07-21 17:11:49,257 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 42 [2018-07-21 17:11:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:11:49,259 INFO L471 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-07-21 17:11:49,259 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 17:11:49,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-07-21 17:11:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-21 17:11:49,268 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:11:49,270 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:11:49,270 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:11:49,270 INFO L82 PathProgramCache]: Analyzing trace with hash -850482636, now seen corresponding path program 1 times [2018-07-21 17:11:49,270 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:11:49,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:11:49,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:11:49,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:11:49,272 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:11:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:11:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:11:49,686 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:11:49,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:11:49,687 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:11:49,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:11:49,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:11:49,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:11:49,690 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-07-21 17:12:04,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:12:04,632 INFO L93 Difference]: Finished difference Result 6448 states and 11850 transitions. [2018-07-21 17:12:04,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:12:04,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-07-21 17:12:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:12:04,705 INFO L225 Difference]: With dead ends: 6448 [2018-07-21 17:12:04,705 INFO L226 Difference]: Without dead ends: 4497 [2018-07-21 17:12:04,716 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 17:12:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2018-07-21 17:12:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 4454. [2018-07-21 17:12:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2018-07-21 17:12:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 7464 transitions. [2018-07-21 17:12:04,906 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 7464 transitions. Word has length 125 [2018-07-21 17:12:04,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:12:04,906 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 7464 transitions. [2018-07-21 17:12:04,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:12:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 7464 transitions. [2018-07-21 17:12:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-21 17:12:04,929 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:12:04,929 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:12:04,930 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:12:04,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1052349080, now seen corresponding path program 1 times [2018-07-21 17:12:04,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:12:04,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:04,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:12:04,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:04,931 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:12:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:12:05,249 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 17:12:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:12:05,412 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:12:05,412 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:12:05,413 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:12:05,413 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:12:05,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:12:05,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:12:05,414 INFO L87 Difference]: Start difference. First operand 4454 states and 7464 transitions. Second operand 6 states. [2018-07-21 17:12:18,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:12:18,258 INFO L93 Difference]: Finished difference Result 11489 states and 19500 transitions. [2018-07-21 17:12:18,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 17:12:18,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-07-21 17:12:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:12:18,307 INFO L225 Difference]: With dead ends: 11489 [2018-07-21 17:12:18,307 INFO L226 Difference]: Without dead ends: 7041 [2018-07-21 17:12:18,326 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 17:12:18,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7041 states. [2018-07-21 17:12:18,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7041 to 6997. [2018-07-21 17:12:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6997 states. [2018-07-21 17:12:18,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6997 states to 6997 states and 11096 transitions. [2018-07-21 17:12:18,689 INFO L78 Accepts]: Start accepts. Automaton has 6997 states and 11096 transitions. Word has length 132 [2018-07-21 17:12:18,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:12:18,690 INFO L471 AbstractCegarLoop]: Abstraction has 6997 states and 11096 transitions. [2018-07-21 17:12:18,690 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:12:18,690 INFO L276 IsEmpty]: Start isEmpty. Operand 6997 states and 11096 transitions. [2018-07-21 17:12:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-21 17:12:18,697 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:12:18,698 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:12:18,698 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:12:18,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1474399912, now seen corresponding path program 1 times [2018-07-21 17:12:18,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:12:18,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:18,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:12:18,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:18,699 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:12:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:12:19,033 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 17:12:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:12:19,096 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:12:19,097 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:12:19,097 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:12:19,097 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:12:19,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:12:19,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:12:19,098 INFO L87 Difference]: Start difference. First operand 6997 states and 11096 transitions. Second operand 6 states. [2018-07-21 17:12:29,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:12:29,512 INFO L93 Difference]: Finished difference Result 15799 states and 25196 transitions. [2018-07-21 17:12:29,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 17:12:29,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-07-21 17:12:29,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:12:29,553 INFO L225 Difference]: With dead ends: 15799 [2018-07-21 17:12:29,553 INFO L226 Difference]: Without dead ends: 8808 [2018-07-21 17:12:29,578 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 17:12:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8808 states. [2018-07-21 17:12:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8808 to 8750. [2018-07-21 17:12:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8750 states. [2018-07-21 17:12:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8750 states to 8750 states and 12753 transitions. [2018-07-21 17:12:29,841 INFO L78 Accepts]: Start accepts. Automaton has 8750 states and 12753 transitions. Word has length 140 [2018-07-21 17:12:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:12:29,841 INFO L471 AbstractCegarLoop]: Abstraction has 8750 states and 12753 transitions. [2018-07-21 17:12:29,841 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:12:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 8750 states and 12753 transitions. [2018-07-21 17:12:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-21 17:12:29,846 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:12:29,846 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:12:29,846 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:12:29,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1205311108, now seen corresponding path program 1 times [2018-07-21 17:12:29,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:12:29,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:29,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:12:29,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:29,848 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:12:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:12:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:12:30,189 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:12:30,189 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 17:12:30,189 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:12:30,190 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 17:12:30,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 17:12:30,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 17:12:30,190 INFO L87 Difference]: Start difference. First operand 8750 states and 12753 transitions. Second operand 5 states. [2018-07-21 17:12:41,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:12:41,114 INFO L93 Difference]: Finished difference Result 24992 states and 37362 transitions. [2018-07-21 17:12:41,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:12:41,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-07-21 17:12:41,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:12:41,186 INFO L225 Difference]: With dead ends: 24992 [2018-07-21 17:12:41,187 INFO L226 Difference]: Without dead ends: 16248 [2018-07-21 17:12:41,210 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 17:12:41,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16248 states. [2018-07-21 17:12:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16248 to 15864. [2018-07-21 17:12:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15864 states. [2018-07-21 17:12:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15864 states to 15864 states and 21780 transitions. [2018-07-21 17:12:41,596 INFO L78 Accepts]: Start accepts. Automaton has 15864 states and 21780 transitions. Word has length 141 [2018-07-21 17:12:41,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:12:41,596 INFO L471 AbstractCegarLoop]: Abstraction has 15864 states and 21780 transitions. [2018-07-21 17:12:41,596 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 17:12:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 15864 states and 21780 transitions. [2018-07-21 17:12:41,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-21 17:12:41,600 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:12:41,601 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:12:41,601 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:12:41,601 INFO L82 PathProgramCache]: Analyzing trace with hash 643439200, now seen corresponding path program 1 times [2018-07-21 17:12:41,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:12:41,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:41,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:12:41,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:41,602 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:12:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:12:41,925 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 17:12:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:12:42,324 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:12:42,324 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:12:42,324 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:12:42,325 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:12:42,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:12:42,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:12:42,325 INFO L87 Difference]: Start difference. First operand 15864 states and 21780 transitions. Second operand 6 states. [2018-07-21 17:12:52,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:12:52,891 INFO L93 Difference]: Finished difference Result 41059 states and 60989 transitions. [2018-07-21 17:12:52,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 17:12:52,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-07-21 17:12:52,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:12:52,992 INFO L225 Difference]: With dead ends: 41059 [2018-07-21 17:12:52,992 INFO L226 Difference]: Without dead ends: 25201 [2018-07-21 17:12:53,036 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 17:12:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25201 states. [2018-07-21 17:12:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25201 to 25014. [2018-07-21 17:12:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25014 states. [2018-07-21 17:12:53,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25014 states to 25014 states and 34493 transitions. [2018-07-21 17:12:53,662 INFO L78 Accepts]: Start accepts. Automaton has 25014 states and 34493 transitions. Word has length 152 [2018-07-21 17:12:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:12:53,663 INFO L471 AbstractCegarLoop]: Abstraction has 25014 states and 34493 transitions. [2018-07-21 17:12:53,663 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:12:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 25014 states and 34493 transitions. [2018-07-21 17:12:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-07-21 17:12:53,669 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:12:53,670 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:12:53,670 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:12:53,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1855495069, now seen corresponding path program 1 times [2018-07-21 17:12:53,670 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:12:53,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:53,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:12:53,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:12:53,674 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:12:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:12:53,999 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 17:12:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:12:54,419 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:12:54,419 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:12:54,419 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:12:54,420 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:12:54,420 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:12:54,420 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:12:54,421 INFO L87 Difference]: Start difference. First operand 25014 states and 34493 transitions. Second operand 6 states. [2018-07-21 17:13:02,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:13:02,669 INFO L93 Difference]: Finished difference Result 55700 states and 78786 transitions. [2018-07-21 17:13:02,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 17:13:02,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-07-21 17:13:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:13:02,791 INFO L225 Difference]: With dead ends: 55700 [2018-07-21 17:13:02,791 INFO L226 Difference]: Without dead ends: 30692 [2018-07-21 17:13:02,838 INFO L578 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 [2018-07-21 17:13:02,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30692 states. [2018-07-21 17:13:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30692 to 30637. [2018-07-21 17:13:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30637 states. [2018-07-21 17:13:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30637 states to 30637 states and 40657 transitions. [2018-07-21 17:13:03,412 INFO L78 Accepts]: Start accepts. Automaton has 30637 states and 40657 transitions. Word has length 200 [2018-07-21 17:13:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:13:03,413 INFO L471 AbstractCegarLoop]: Abstraction has 30637 states and 40657 transitions. [2018-07-21 17:13:03,413 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:13:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 30637 states and 40657 transitions. [2018-07-21 17:13:03,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-07-21 17:13:03,427 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:13:03,427 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 17:13:03,427 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:13:03,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1156537024, now seen corresponding path program 1 times [2018-07-21 17:13:03,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:13:03,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:13:03,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:13:03,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:13:03,429 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:13:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:13:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-21 17:13:03,641 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:13:03,641 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 17:13:03,642 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:13:03,642 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 17:13:03,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 17:13:03,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 17:13:03,643 INFO L87 Difference]: Start difference. First operand 30637 states and 40657 transitions. Second operand 3 states. [2018-07-21 17:13:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:13:08,850 INFO L93 Difference]: Finished difference Result 81771 states and 112571 transitions. [2018-07-21 17:13:08,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 17:13:08,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2018-07-21 17:13:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:13:09,029 INFO L225 Difference]: With dead ends: 81771 [2018-07-21 17:13:09,029 INFO L226 Difference]: Without dead ends: 51140 [2018-07-21 17:13:09,116 INFO L578 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 [2018-07-21 17:13:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51140 states. [2018-07-21 17:13:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51140 to 51128. [2018-07-21 17:13:10,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51128 states. [2018-07-21 17:13:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51128 states to 51128 states and 64674 transitions. [2018-07-21 17:13:10,314 INFO L78 Accepts]: Start accepts. Automaton has 51128 states and 64674 transitions. Word has length 253 [2018-07-21 17:13:10,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:13:10,316 INFO L471 AbstractCegarLoop]: Abstraction has 51128 states and 64674 transitions. [2018-07-21 17:13:10,316 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 17:13:10,316 INFO L276 IsEmpty]: Start isEmpty. Operand 51128 states and 64674 transitions. [2018-07-21 17:13:10,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-07-21 17:13:10,334 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:13:10,334 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:13:10,334 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:13:10,334 INFO L82 PathProgramCache]: Analyzing trace with hash 2115585774, now seen corresponding path program 1 times [2018-07-21 17:13:10,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:13:10,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:13:10,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:13:10,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:13:10,336 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:13:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:13:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:13:10,910 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 17:13:10,934 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 17:13:10,935 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-07-21 17:13:10,938 INFO L201 CegarAbsIntRunner]: [0], [1], [1453], [1457], [1463], [1467], [1469], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2887], [2889], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3124], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3176], [3180], [3184], [3188], [3192], [3203], [3207], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3281], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3357], [3368], [3379], [3382], [3385], [3389], [4262], [4265], [4266], [4267], [4269], [4270] [2018-07-21 17:13:11,019 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 17:13:11,020 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 17:13:25,948 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 17:13:25,950 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 17:13:25,965 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 17:13:38,727 INFO L232 lantSequenceWeakener]: Weakened 252 states. On average, predicates are now at 71.21% of their original sizes. [2018-07-21 17:13:38,727 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 17:13:39,744 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 17:13:39,745 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 17:13:39,745 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 17:13:39,745 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:13:39,745 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 17:13:39,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 17:13:39,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 17:13:39,746 INFO L87 Difference]: Start difference. First operand 51128 states and 64674 transitions. Second operand 8 states. [2018-07-21 17:14:01,912 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 17:14:44,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:14:44,733 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 17:14:44,738 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 17:14:44,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:14:44 BoogieIcfgContainer [2018-07-21 17:14:44,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 17:14:44,739 INFO L168 Benchmark]: Toolchain (without parser) took 203111.94 ms. Allocated memory was 308.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 239.3 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 922.8 MB. Max. memory is 5.3 GB. [2018-07-21 17:14:44,740 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 17:14:44,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3092.18 ms. Allocated memory was 308.8 MB in the beginning and 395.3 MB in the end (delta: 86.5 MB). Free memory was 237.3 MB in the beginning and 202.7 MB in the end (delta: 34.6 MB). Peak memory consumption was 121.1 MB. Max. memory is 5.3 GB. [2018-07-21 17:14:44,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 485.51 ms. Allocated memory is still 395.3 MB. Free memory was 202.7 MB in the beginning and 272.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 114.0 MB. Max. memory is 5.3 GB. [2018-07-21 17:14:44,741 INFO L168 Benchmark]: Boogie Preprocessor took 1338.75 ms. Allocated memory was 395.3 MB in the beginning and 625.5 MB in the end (delta: 230.2 MB). Free memory was 272.7 MB in the beginning and 468.1 MB in the end (delta: -195.4 MB). Peak memory consumption was 53.2 MB. Max. memory is 5.3 GB. [2018-07-21 17:14:44,742 INFO L168 Benchmark]: RCFGBuilder took 11284.10 ms. Allocated memory was 625.5 MB in the beginning and 941.1 MB in the end (delta: 315.6 MB). Free memory was 468.1 MB in the beginning and 625.4 MB in the end (delta: -157.3 MB). Peak memory consumption was 333.1 MB. Max. memory is 5.3 GB. [2018-07-21 17:14:44,742 INFO L168 Benchmark]: TraceAbstraction took 186899.24 ms. Allocated memory was 941.1 MB in the beginning and 2.5 GB in the end (delta: 1.6 GB). Free memory was 625.4 MB in the beginning and 1.6 GB in the end (delta: -928.2 MB). Peak memory consumption was 676.6 MB. Max. memory is 5.3 GB. [2018-07-21 17:14:44,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3092.18 ms. Allocated memory was 308.8 MB in the beginning and 395.3 MB in the end (delta: 86.5 MB). Free memory was 237.3 MB in the beginning and 202.7 MB in the end (delta: 34.6 MB). Peak memory consumption was 121.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 485.51 ms. Allocated memory is still 395.3 MB. Free memory was 202.7 MB in the beginning and 272.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 114.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1338.75 ms. Allocated memory was 395.3 MB in the beginning and 625.5 MB in the end (delta: 230.2 MB). Free memory was 272.7 MB in the beginning and 468.1 MB in the end (delta: -195.4 MB). Peak memory consumption was 53.2 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11284.10 ms. Allocated memory was 625.5 MB in the beginning and 941.1 MB in the end (delta: 315.6 MB). Free memory was 468.1 MB in the beginning and 625.4 MB in the end (delta: -157.3 MB). Peak memory consumption was 333.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 186899.24 ms. Allocated memory was 941.1 MB in the beginning and 2.5 GB in the end (delta: 1.6 GB). Free memory was 625.4 MB in the beginning and 1.6 GB in the end (delta: -928.2 MB). Peak memory consumption was 676.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 117). Cancelled while BasicCegarLoop was constructing difference of abstraction (51128states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (2970 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 186.8s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 149.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5309 SDtfs, 28687 SDslu, 3927 SDs, 0 SdLazy, 39628 SolverSat, 11337 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 113.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 332 GetRequests, 274 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51128occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9964397288535218 AbsIntWeakeningRatio, 0.11494252873563218 AbsIntAvgWeakeningVarsNumRemoved, 32.10344827586207 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 797 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1447 NumberOfCodeBlocks, 1447 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1438 ConstructedInterpolants, 0 QuantifiedInterpolants, 903667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 537/539 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label33_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_17-14-44-760.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label33_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_17-14-44-760.csv Completed graceful shutdown