java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:32:56,268 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:32:56,272 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:32:56,288 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:32:56,288 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:32:56,290 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:32:56,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:32:56,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:32:56,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:32:56,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:32:56,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:32:56,302 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:32:56,303 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:32:56,304 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:32:56,306 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:32:56,314 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:32:56,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:32:56,318 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:32:56,321 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:32:56,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:32:56,325 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:32:56,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:32:56,329 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:32:56,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:32:56,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:32:56,334 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:32:56,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:32:56,335 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:32:56,337 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:32:56,338 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:32:56,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:32:56,340 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:32:56,341 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:32:56,341 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:32:56,343 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:32:56,344 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:32:56,344 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 10:32:56,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:32:56,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:32:56,370 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:32:56,370 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:32:56,370 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:32:56,370 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:32:56,371 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:32:56,371 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:32:56,371 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:32:56,371 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:32:56,371 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:32:56,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:32:56,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:32:56,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:32:56,375 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:32:56,376 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:32:56,376 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:32:56,376 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:32:56,376 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:32:56,376 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:32:56,377 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:32:56,377 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:32:56,377 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:32:56,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:32:56,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:32:56,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:32:56,379 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:32:56,379 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:32:56,379 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:32:56,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:32:56,380 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:32:56,380 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:32:56,380 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:32:56,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:32:56,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:32:56,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:32:56,455 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:32:56,455 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:32:56,456 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label05_true-unreach-call.c [2018-09-10 10:32:56,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80650670e/4e6b36e13ae54489984d47eb1248f87f/FLAGafc711fdd [2018-09-10 10:32:57,386 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:32:57,387 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label05_true-unreach-call.c [2018-09-10 10:32:57,429 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80650670e/4e6b36e13ae54489984d47eb1248f87f/FLAGafc711fdd [2018-09-10 10:32:57,453 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80650670e/4e6b36e13ae54489984d47eb1248f87f [2018-09-10 10:32:57,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:32:57,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:32:57,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:32:57,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:32:57,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:32:57,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:32:57" (1/1) ... [2018-09-10 10:32:57,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3231cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:32:57, skipping insertion in model container [2018-09-10 10:32:57,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:32:57" (1/1) ... [2018-09-10 10:32:57,834 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:32:59,047 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:32:59,069 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:32:59,895 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:33:00,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00 WrapperNode [2018-09-10 10:33:00,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:33:00,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:33:00,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:33:00,060 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:33:00,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:33:00,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:33:00,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:33:00,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:33:00,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... [2018-09-10 10:33:00,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:33:00,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:33:00,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:33:00,832 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:33:00,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:33:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:33:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:33:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 10:33:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 10:33:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 10:33:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 10:33:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:33:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:33:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 10:33:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 10:33:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:33:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:33:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 10:33:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 10:33:12,402 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:33:12,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:33:12 BoogieIcfgContainer [2018-09-10 10:33:12,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:33:12,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:33:12,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:33:12,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:33:12,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:32:57" (1/3) ... [2018-09-10 10:33:12,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1bf984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:33:12, skipping insertion in model container [2018-09-10 10:33:12,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:33:00" (2/3) ... [2018-09-10 10:33:12,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1bf984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:33:12, skipping insertion in model container [2018-09-10 10:33:12,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:33:12" (3/3) ... [2018-09-10 10:33:12,410 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label05_true-unreach-call.c [2018-09-10 10:33:12,419 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:33:12,429 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:33:12,491 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:33:12,492 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:33:12,492 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:33:12,492 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:33:12,492 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:33:12,492 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:33:12,492 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:33:12,492 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:33:12,493 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:33:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-10 10:33:12,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2018-09-10 10:33:12,593 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:33:12,597 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:33:12,600 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:33:12,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1085553652, now seen corresponding path program 1 times [2018-09-10 10:33:12,609 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:33:12,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:12,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:12,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:12,667 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:33:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:14,407 WARN L175 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:33:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:33:15,448 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:33:15,448 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:33:15,448 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:33:15,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:33:15,470 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:33:15,470 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:33:15,473 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-10 10:33:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:33:22,398 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-10 10:33:22,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:33:22,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 796 [2018-09-10 10:33:22,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:33:22,449 INFO L225 Difference]: With dead ends: 2647 [2018-09-10 10:33:22,449 INFO L226 Difference]: Without dead ends: 1738 [2018-09-10 10:33:22,460 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:33:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-10 10:33:22,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-10 10:33:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-10 10:33:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3286 transitions. [2018-09-10 10:33:22,637 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3286 transitions. Word has length 796 [2018-09-10 10:33:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:33:22,641 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3286 transitions. [2018-09-10 10:33:22,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:33:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3286 transitions. [2018-09-10 10:33:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2018-09-10 10:33:22,674 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:33:22,677 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:33:22,677 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:33:22,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1756924713, now seen corresponding path program 1 times [2018-09-10 10:33:22,678 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:33:22,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:22,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:22,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:22,680 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:33:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:23,525 WARN L175 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:33:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:33:24,346 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:33:24,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:33:24,346 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:33:24,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:33:24,349 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:33:24,349 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:33:24,350 INFO L87 Difference]: Start difference. First operand 1738 states and 3286 transitions. Second operand 3 states. [2018-09-10 10:33:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:33:32,703 INFO L93 Difference]: Finished difference Result 5140 states and 9845 transitions. [2018-09-10 10:33:32,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:33:32,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 805 [2018-09-10 10:33:32,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:33:32,732 INFO L225 Difference]: With dead ends: 5140 [2018-09-10 10:33:32,732 INFO L226 Difference]: Without dead ends: 3408 [2018-09-10 10:33:32,740 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:33:32,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2018-09-10 10:33:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3408. [2018-09-10 10:33:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3408 states. [2018-09-10 10:33:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 6080 transitions. [2018-09-10 10:33:32,838 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 6080 transitions. Word has length 805 [2018-09-10 10:33:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:33:32,840 INFO L480 AbstractCegarLoop]: Abstraction has 3408 states and 6080 transitions. [2018-09-10 10:33:32,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:33:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 6080 transitions. [2018-09-10 10:33:32,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2018-09-10 10:33:32,858 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:33:32,859 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:33:32,859 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:33:32,860 INFO L82 PathProgramCache]: Analyzing trace with hash -703827021, now seen corresponding path program 1 times [2018-09-10 10:33:32,860 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:33:32,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:32,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:32,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:32,862 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:33:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:33:34,952 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:33:34,952 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:33:34,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:34,965 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:33:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:35,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:33:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:33:36,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:33:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:33:37,371 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:33:37,372 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-10 10:33:37,372 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:33:37,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:33:37,374 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:33:37,374 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:33:37,374 INFO L87 Difference]: Start difference. First operand 3408 states and 6080 transitions. Second operand 3 states. [2018-09-10 10:33:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:33:42,948 INFO L93 Difference]: Finished difference Result 10150 states and 18375 transitions. [2018-09-10 10:33:42,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:33:42,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 823 [2018-09-10 10:33:42,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:33:42,998 INFO L225 Difference]: With dead ends: 10150 [2018-09-10 10:33:42,998 INFO L226 Difference]: Without dead ends: 6748 [2018-09-10 10:33:43,010 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1658 GetRequests, 1646 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:33:43,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6748 states. [2018-09-10 10:33:43,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6748 to 6748. [2018-09-10 10:33:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6748 states. [2018-09-10 10:33:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 11514 transitions. [2018-09-10 10:33:43,183 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 11514 transitions. Word has length 823 [2018-09-10 10:33:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:33:43,185 INFO L480 AbstractCegarLoop]: Abstraction has 6748 states and 11514 transitions. [2018-09-10 10:33:43,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:33:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 11514 transitions. [2018-09-10 10:33:43,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 848 [2018-09-10 10:33:43,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:33:43,212 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:33:43,212 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:33:43,213 INFO L82 PathProgramCache]: Analyzing trace with hash -873257085, now seen corresponding path program 1 times [2018-09-10 10:33:43,213 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:33:43,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:43,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:43,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:43,214 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:33:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:43,541 WARN L175 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:33:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:33:44,551 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:33:44,551 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 10:33:44,551 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:33:44,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:33:44,555 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:33:44,556 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:33:44,556 INFO L87 Difference]: Start difference. First operand 6748 states and 11514 transitions. Second operand 6 states. [2018-09-10 10:33:53,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:33:53,414 INFO L93 Difference]: Finished difference Result 17068 states and 29384 transitions. [2018-09-10 10:33:53,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:33:53,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 847 [2018-09-10 10:33:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:33:53,495 INFO L225 Difference]: With dead ends: 17068 [2018-09-10 10:33:53,496 INFO L226 Difference]: Without dead ends: 10326 [2018-09-10 10:33:53,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:33:53,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10326 states. [2018-09-10 10:33:53,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10326 to 10286. [2018-09-10 10:33:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10286 states. [2018-09-10 10:33:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10286 states to 10286 states and 15522 transitions. [2018-09-10 10:33:53,811 INFO L78 Accepts]: Start accepts. Automaton has 10286 states and 15522 transitions. Word has length 847 [2018-09-10 10:33:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:33:53,811 INFO L480 AbstractCegarLoop]: Abstraction has 10286 states and 15522 transitions. [2018-09-10 10:33:53,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:33:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 10286 states and 15522 transitions. [2018-09-10 10:33:53,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2018-09-10 10:33:53,854 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:33:53,854 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:33:53,855 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:33:53,855 INFO L82 PathProgramCache]: Analyzing trace with hash 151071384, now seen corresponding path program 1 times [2018-09-10 10:33:53,856 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:33:53,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:53,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:53,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:33:53,857 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:33:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:54,220 WARN L175 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:33:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:33:54,792 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:33:54,792 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:33:54,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:33:54,801 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:33:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:33:55,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:33:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-10 10:33:56,161 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:33:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:33:56,605 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:33:56,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-10 10:33:56,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:33:56,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:33:56,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:33:56,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-10 10:33:56,608 INFO L87 Difference]: Start difference. First operand 10286 states and 15522 transitions. Second operand 5 states. [2018-09-10 10:34:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:34:04,140 INFO L93 Difference]: Finished difference Result 31218 states and 48951 transitions. [2018-09-10 10:34:04,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 10:34:04,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 879 [2018-09-10 10:34:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:34:04,223 INFO L225 Difference]: With dead ends: 31218 [2018-09-10 10:34:04,223 INFO L226 Difference]: Without dead ends: 20938 [2018-09-10 10:34:04,253 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1765 GetRequests, 1753 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:34:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20938 states. [2018-09-10 10:34:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20938 to 20754. [2018-09-10 10:34:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20754 states. [2018-09-10 10:34:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20754 states to 20754 states and 29099 transitions. [2018-09-10 10:34:04,744 INFO L78 Accepts]: Start accepts. Automaton has 20754 states and 29099 transitions. Word has length 879 [2018-09-10 10:34:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:34:04,745 INFO L480 AbstractCegarLoop]: Abstraction has 20754 states and 29099 transitions. [2018-09-10 10:34:04,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:34:04,745 INFO L276 IsEmpty]: Start isEmpty. Operand 20754 states and 29099 transitions. [2018-09-10 10:34:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 905 [2018-09-10 10:34:04,819 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:34:04,820 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:34:04,820 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:34:04,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1870171594, now seen corresponding path program 1 times [2018-09-10 10:34:04,821 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:34:04,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:04,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:04,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:04,823 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:34:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:05,143 WARN L175 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:34:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-10 10:34:05,873 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:34:05,873 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:34:05,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:05,892 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:34:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:06,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:34:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-09-10 10:34:07,080 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:34:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-10 10:34:07,533 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:34:07,533 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 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 [2018-09-10 10:34:07,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:07,549 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:34:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:08,395 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:34:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-09-10 10:34:08,812 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:34:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-10 10:34:09,537 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:34:09,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:34:09,538 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:34:09,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:34:09,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:34:09,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:34:09,541 INFO L87 Difference]: Start difference. First operand 20754 states and 29099 transitions. Second operand 9 states. [2018-09-10 10:34:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:34:27,234 INFO L93 Difference]: Finished difference Result 53064 states and 80018 transitions. [2018-09-10 10:34:27,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-10 10:34:27,235 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 904 [2018-09-10 10:34:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:34:27,374 INFO L225 Difference]: With dead ends: 53064 [2018-09-10 10:34:27,374 INFO L226 Difference]: Without dead ends: 32316 [2018-09-10 10:34:27,439 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3670 GetRequests, 3630 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2018-09-10 10:34:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2018-09-10 10:34:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 31742. [2018-09-10 10:34:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31742 states. [2018-09-10 10:34:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31742 states to 31742 states and 40381 transitions. [2018-09-10 10:34:28,283 INFO L78 Accepts]: Start accepts. Automaton has 31742 states and 40381 transitions. Word has length 904 [2018-09-10 10:34:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:34:28,284 INFO L480 AbstractCegarLoop]: Abstraction has 31742 states and 40381 transitions. [2018-09-10 10:34:28,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:34:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 31742 states and 40381 transitions. [2018-09-10 10:34:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2018-09-10 10:34:28,384 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:34:28,385 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:34:28,385 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:34:28,386 INFO L82 PathProgramCache]: Analyzing trace with hash -659191876, now seen corresponding path program 1 times [2018-09-10 10:34:28,386 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:34:28,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:28,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:28,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:28,388 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:34:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 194 proven. 79 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 10:34:29,429 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:34:29,429 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:34:29,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:29,446 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:34:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:29,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:34:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-09-10 10:34:30,857 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:34:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-09-10 10:34:31,644 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:34:31,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 10:34:31,644 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:34:31,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:34:31,645 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:34:31,646 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 10:34:31,646 INFO L87 Difference]: Start difference. First operand 31742 states and 40381 transitions. Second operand 3 states. [2018-09-10 10:34:37,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:34:37,544 INFO L93 Difference]: Finished difference Result 92371 states and 118770 transitions. [2018-09-10 10:34:37,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:34:37,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 974 [2018-09-10 10:34:37,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:34:37,735 INFO L225 Difference]: With dead ends: 92371 [2018-09-10 10:34:37,735 INFO L226 Difference]: Without dead ends: 60635 [2018-09-10 10:34:37,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1953 GetRequests, 1943 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 10:34:37,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60635 states. [2018-09-10 10:34:38,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60635 to 53068. [2018-09-10 10:34:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53068 states. [2018-09-10 10:34:38,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53068 states to 53068 states and 65530 transitions. [2018-09-10 10:34:38,754 INFO L78 Accepts]: Start accepts. Automaton has 53068 states and 65530 transitions. Word has length 974 [2018-09-10 10:34:38,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:34:38,756 INFO L480 AbstractCegarLoop]: Abstraction has 53068 states and 65530 transitions. [2018-09-10 10:34:38,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:34:38,756 INFO L276 IsEmpty]: Start isEmpty. Operand 53068 states and 65530 transitions. [2018-09-10 10:34:38,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1443 [2018-09-10 10:34:38,852 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:34:38,854 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:34:38,854 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:34:38,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2041184196, now seen corresponding path program 1 times [2018-09-10 10:34:38,855 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:34:38,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:38,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:38,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:38,856 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:34:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 641 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:34:41,778 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:34:41,778 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:34:41,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:41,787 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:34:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:42,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:34:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-10 10:34:43,693 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:34:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-10 10:34:44,944 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:34:44,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-10 10:34:44,944 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:34:44,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:34:44,946 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:34:44,946 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:34:44,946 INFO L87 Difference]: Start difference. First operand 53068 states and 65530 transitions. Second operand 3 states. [2018-09-10 10:34:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:34:50,773 INFO L93 Difference]: Finished difference Result 128813 states and 162517 transitions. [2018-09-10 10:34:50,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:34:50,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1442 [2018-09-10 10:34:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:34:51,002 INFO L225 Difference]: With dead ends: 128813 [2018-09-10 10:34:51,002 INFO L226 Difference]: Without dead ends: 75751 [2018-09-10 10:34:51,098 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2893 GetRequests, 2887 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:34:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75751 states. [2018-09-10 10:34:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75751 to 70539. [2018-09-10 10:34:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70539 states. [2018-09-10 10:34:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70539 states to 70539 states and 85404 transitions. [2018-09-10 10:34:52,415 INFO L78 Accepts]: Start accepts. Automaton has 70539 states and 85404 transitions. Word has length 1442 [2018-09-10 10:34:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:34:52,417 INFO L480 AbstractCegarLoop]: Abstraction has 70539 states and 85404 transitions. [2018-09-10 10:34:52,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:34:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 70539 states and 85404 transitions. [2018-09-10 10:34:52,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1714 [2018-09-10 10:34:52,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:34:52,557 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:34:52,558 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:34:52,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2145451691, now seen corresponding path program 1 times [2018-09-10 10:34:52,559 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:34:52,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:52,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:52,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:34:52,561 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:34:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 929 proven. 303 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2018-09-10 10:34:54,974 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:34:54,974 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:34:54,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:54,983 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:34:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:34:55,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:34:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 799 proven. 2 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2018-09-10 10:34:57,456 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:34:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 1046 proven. 149 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (8)] Forcibly destroying the process [2018-09-10 10:34:59,042 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:34:59,042 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:34:59,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:34:59,058 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:35:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:35:00,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:35:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 799 proven. 2 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2018-09-10 10:35:01,978 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:35:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 1046 proven. 149 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-09-10 10:35:03,340 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:35:03,343 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:35:03,343 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:35:03,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:35:03,346 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:35:03,346 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:35:03,346 INFO L87 Difference]: Start difference. First operand 70539 states and 85404 transitions. Second operand 9 states. [2018-09-10 10:35:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:35:15,434 INFO L93 Difference]: Finished difference Result 138867 states and 170209 transitions. [2018-09-10 10:35:15,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-10 10:35:15,434 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1713 [2018-09-10 10:35:15,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:35:15,662 INFO L225 Difference]: With dead ends: 138867 [2018-09-10 10:35:15,663 INFO L226 Difference]: Without dead ends: 59262 [2018-09-10 10:35:15,794 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6901 GetRequests, 6863 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2018-09-10 10:35:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59262 states. [2018-09-10 10:35:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59262 to 58105. [2018-09-10 10:35:16,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58105 states. [2018-09-10 10:35:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58105 states to 58105 states and 61362 transitions. [2018-09-10 10:35:16,742 INFO L78 Accepts]: Start accepts. Automaton has 58105 states and 61362 transitions. Word has length 1713 [2018-09-10 10:35:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:35:16,742 INFO L480 AbstractCegarLoop]: Abstraction has 58105 states and 61362 transitions. [2018-09-10 10:35:16,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:35:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 58105 states and 61362 transitions. [2018-09-10 10:35:17,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3537 [2018-09-10 10:35:17,195 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:35:17,197 INFO L376 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:35:17,197 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:35:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash 633950932, now seen corresponding path program 1 times [2018-09-10 10:35:17,199 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:35:17,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:35:17,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:35:17,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:35:17,200 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:35:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:35:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 12821 backedges. 2792 proven. 571 refuted. 0 times theorem prover too weak. 9458 trivial. 0 not checked. [2018-09-10 10:35:23,573 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:35:23,574 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:35:23,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:35:23,583 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:35:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:35:25,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:35:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12821 backedges. 3683 proven. 2 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2018-09-10 10:35:29,178 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:35:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 12821 backedges. 2986 proven. 1243 refuted. 0 times theorem prover too weak. 8592 trivial. 0 not checked. [2018-09-10 10:35:33,934 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:35:33,934 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:35:33,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:35:33,949 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:35:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:35:37,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:35:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 12821 backedges. 3683 proven. 2 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2018-09-10 10:35:41,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:35:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12821 backedges. 2986 proven. 1243 refuted. 0 times theorem prover too weak. 8592 trivial. 0 not checked. [2018-09-10 10:35:46,199 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:35:46,202 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 16 [2018-09-10 10:35:46,202 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:35:46,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-10 10:35:46,206 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-10 10:35:46,207 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-09-10 10:35:46,207 INFO L87 Difference]: Start difference. First operand 58105 states and 61362 transitions. Second operand 10 states. [2018-09-10 10:35:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:35:59,306 INFO L93 Difference]: Finished difference Result 131768 states and 141359 transitions. [2018-09-10 10:35:59,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-09-10 10:35:59,307 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 3536 [2018-09-10 10:35:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:35:59,507 INFO L225 Difference]: With dead ends: 131768 [2018-09-10 10:35:59,508 INFO L226 Difference]: Without dead ends: 74504 [2018-09-10 10:35:59,605 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14244 GetRequests, 14180 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=739, Invalid=3293, Unknown=0, NotChecked=0, Total=4032 [2018-09-10 10:35:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74504 states. [2018-09-10 10:36:00,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74504 to 71116. [2018-09-10 10:36:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71116 states. [2018-09-10 10:36:00,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71116 states to 71116 states and 73933 transitions. [2018-09-10 10:36:00,857 INFO L78 Accepts]: Start accepts. Automaton has 71116 states and 73933 transitions. Word has length 3536 [2018-09-10 10:36:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:36:00,858 INFO L480 AbstractCegarLoop]: Abstraction has 71116 states and 73933 transitions. [2018-09-10 10:36:00,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-10 10:36:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 71116 states and 73933 transitions. [2018-09-10 10:36:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4359 [2018-09-10 10:36:01,109 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:36:01,111 INFO L376 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 10:36:01,111 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:36:01,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1696124575, now seen corresponding path program 1 times [2018-09-10 10:36:01,112 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:36:01,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:01,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:36:01,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:01,114 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:36:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:36:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 17635 backedges. 3977 proven. 2766 refuted. 0 times theorem prover too weak. 10892 trivial. 0 not checked. [2018-09-10 10:36:21,161 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:36:21,161 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:36:21,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:36:21,169 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:36:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:36:22,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:36:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 17635 backedges. 6366 proven. 2 refuted. 0 times theorem prover too weak. 11267 trivial. 0 not checked. [2018-09-10 10:36:29,030 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:36:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 17635 backedges. 4149 proven. 43 refuted. 0 times theorem prover too weak. 13443 trivial. 0 not checked. [2018-09-10 10:36:36,879 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:36:36,879 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:36:36,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:36:36,895 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Received shutdown request... [2018-09-10 10:36:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:36:40,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:36:40,884 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-10 10:36:41,086 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:36:41,087 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 10:36:41,093 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 10:36:41,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 10:36:41 BoogieIcfgContainer [2018-09-10 10:36:41,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 10:36:41,094 INFO L168 Benchmark]: Toolchain (without parser) took 223629.21 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -334.5 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-10 10:36:41,096 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:36:41,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2589.64 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-09-10 10:36:41,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.64 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-10 10:36:41,099 INFO L168 Benchmark]: Boogie Preprocessor took 646.27 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 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 84.9 MB. Max. memory is 7.1 GB. [2018-09-10 10:36:41,100 INFO L168 Benchmark]: RCFGBuilder took 11571.30 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 200.3 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -109.6 MB). Peak memory consumption was 727.1 MB. Max. memory is 7.1 GB. [2018-09-10 10:36:41,101 INFO L168 Benchmark]: TraceAbstraction took 208690.02 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 614.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-10 10:36:41,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2589.64 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 124.64 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 646.27 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 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 84.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11571.30 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 200.3 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -109.6 MB). Peak memory consumption was 727.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208690.02 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 614.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4706]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4706). Cancelled while BasicCegarLoop was analyzing trace of length 4359 with TraceHistMax 16, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 20 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 208.6s OverallTime, 11 OverallIterations, 16 TraceHistogramMax, 93.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6215 SDtfs, 33411 SDslu, 2249 SDs, 0 SdLazy, 48895 SolverSat, 16353 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 71.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33110 GetRequests, 32909 SyntacticMatches, 28 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1790 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71116occurred in iteration=10, 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: 6.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 18122 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.7s SsaConstructionTime, 9.5s SatisfiabilityAnalysisTime, 42.9s InterpolantComputationTime, 29143 NumberOfCodeBlocks, 29143 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 45537 ConstructedInterpolants, 0 QuantifiedInterpolants, 133057305 SizeOfPredicates, 17 NumberOfNonLiveVariables, 22654 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 30 InterpolantComputations, 10 PerfectInterpolantSequences, 71947/75860 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/Problem04_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-36-41-120.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_10-36-41-120.csv Completed graceful shutdown