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/Problem18_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:33:09,189 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:33:09,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:33:09,205 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:33:09,205 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:33:09,206 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:33:09,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:33:09,209 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:33:09,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:33:09,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:33:09,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:33:09,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:33:09,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:33:09,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:33:09,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:33:09,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:33:09,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:33:09,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:33:09,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:33:09,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:33:09,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:33:09,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:33:09,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:33:09,227 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:33:09,227 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:33:09,228 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:33:09,229 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:33:09,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:33:09,230 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:33:09,231 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:33:09,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:33:09,232 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:33:09,233 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:33:09,233 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:33:09,234 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:33:09,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:33:09,235 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 12:33:09,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:33:09,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:33:09,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:33:09,255 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:33:09,255 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:33:09,255 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:33:09,255 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:33:09,255 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:33:09,255 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:33:09,256 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:33:09,256 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:33:09,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:33:09,257 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:33:09,257 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:33:09,257 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:33:09,257 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:33:09,257 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:33:09,258 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:33:09,258 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:33:09,258 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:33:09,258 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:33:09,258 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:33:09,259 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:33:09,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:33:09,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:33:09,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:33:09,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:33:09,260 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:33:09,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:33:09,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:33:09,260 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:33:09,260 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:33:09,261 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:33:09,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:33:09,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:33:09,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:33:09,337 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:33:09,338 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:33:09,338 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label07_true-unreach-call.c [2018-09-10 12:33:09,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e5593e8/6f505fc8aba24ecebf38d8f14b485f16/FLAG40d56fbd9 [2018-09-10 12:33:10,184 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:33:10,185 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label07_true-unreach-call.c [2018-09-10 12:33:10,211 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e5593e8/6f505fc8aba24ecebf38d8f14b485f16/FLAG40d56fbd9 [2018-09-10 12:33:10,231 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e5593e8/6f505fc8aba24ecebf38d8f14b485f16 [2018-09-10 12:33:10,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:33:10,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:33:10,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:33:10,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:33:10,259 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:33:10,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:33:10" (1/1) ... [2018-09-10 12:33:10,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4554d60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:10, skipping insertion in model container [2018-09-10 12:33:10,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:33:10" (1/1) ... [2018-09-10 12:33:10,599 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:33:11,362 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:33:11,382 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:33:11,929 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:33:12,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12 WrapperNode [2018-09-10 12:33:12,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:33:12,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:33:12,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:33:12,078 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:33:12,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:33:12,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:33:12,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:33:12,267 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:33:12,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (1/1) ... [2018-09-10 12:33:12,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:33:12,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:33:12,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:33:12,877 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:33:12,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (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 12:33:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:33:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:33:12,942 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 12:33:12,942 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 12:33:12,942 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 12:33:12,942 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 12:33:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:33:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:33:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:33:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:33:12,943 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 12:33:12,943 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 12:33:21,196 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:33:21,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:33:21 BoogieIcfgContainer [2018-09-10 12:33:21,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:33:21,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:33:21,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:33:21,202 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:33:21,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:33:10" (1/3) ... [2018-09-10 12:33:21,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf86121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:33:21, skipping insertion in model container [2018-09-10 12:33:21,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:33:12" (2/3) ... [2018-09-10 12:33:21,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf86121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:33:21, skipping insertion in model container [2018-09-10 12:33:21,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:33:21" (3/3) ... [2018-09-10 12:33:21,206 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label07_true-unreach-call.c [2018-09-10 12:33:21,216 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:33:21,225 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:33:21,293 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:33:21,294 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:33:21,294 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:33:21,294 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:33:21,294 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:33:21,294 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:33:21,294 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:33:21,295 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:33:21,295 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:33:21,333 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-10 12:33:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-10 12:33:21,342 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:21,343 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] [2018-09-10 12:33:21,344 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:33:21,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1058109092, now seen corresponding path program 1 times [2018-09-10 12:33:21,353 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:21,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:21,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:21,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:21,408 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:21,891 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 12:33:21,894 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:33:21,894 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:33:21,894 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:33:21,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:33:21,917 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:33:21,918 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:33:21,921 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-09-10 12:33:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:33:33,797 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-09-10 12:33:33,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:33:33,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-09-10 12:33:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:33:33,834 INFO L225 Difference]: With dead ends: 2974 [2018-09-10 12:33:33,834 INFO L226 Difference]: Without dead ends: 2193 [2018-09-10 12:33:33,847 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:33:33,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-09-10 12:33:34,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1474. [2018-09-10 12:33:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-10 12:33:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2384 transitions. [2018-09-10 12:33:34,022 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2384 transitions. Word has length 54 [2018-09-10 12:33:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:33:34,023 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2384 transitions. [2018-09-10 12:33:34,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:33:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2384 transitions. [2018-09-10 12:33:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-10 12:33:34,030 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:34,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:34,031 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:33:34,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1158143598, now seen corresponding path program 1 times [2018-09-10 12:33:34,032 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:34,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:34,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:34,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:34,033 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:33:34,315 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:33:34,315 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 12:33:34,315 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:33:34,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:33:34,317 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:33:34,318 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 12:33:34,318 INFO L87 Difference]: Start difference. First operand 1474 states and 2384 transitions. Second operand 5 states. [2018-09-10 12:33:45,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:33:45,426 INFO L93 Difference]: Finished difference Result 4422 states and 7235 transitions. [2018-09-10 12:33:45,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:33:45,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-09-10 12:33:45,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:33:45,454 INFO L225 Difference]: With dead ends: 4422 [2018-09-10 12:33:45,454 INFO L226 Difference]: Without dead ends: 2954 [2018-09-10 12:33:45,461 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:33:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-09-10 12:33:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2930. [2018-09-10 12:33:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2930 states. [2018-09-10 12:33:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4516 transitions. [2018-09-10 12:33:45,680 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4516 transitions. Word has length 124 [2018-09-10 12:33:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:33:45,682 INFO L480 AbstractCegarLoop]: Abstraction has 2930 states and 4516 transitions. [2018-09-10 12:33:45,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:33:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4516 transitions. [2018-09-10 12:33:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-10 12:33:45,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:45,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:45,690 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:33:45,694 INFO L82 PathProgramCache]: Analyzing trace with hash -262926774, now seen corresponding path program 1 times [2018-09-10 12:33:45,694 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:45,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:45,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:45,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:45,696 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:33:45,927 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:33:45,927 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:33:45,927 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:33:45,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:33:45,928 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:33:45,928 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:33:45,928 INFO L87 Difference]: Start difference. First operand 2930 states and 4516 transitions. Second operand 6 states. [2018-09-10 12:33:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:33:51,432 INFO L93 Difference]: Finished difference Result 7357 states and 11327 transitions. [2018-09-10 12:33:51,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:33:51,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-09-10 12:33:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:33:51,461 INFO L225 Difference]: With dead ends: 7357 [2018-09-10 12:33:51,461 INFO L226 Difference]: Without dead ends: 4433 [2018-09-10 12:33:51,471 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:33:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2018-09-10 12:33:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4400. [2018-09-10 12:33:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4400 states. [2018-09-10 12:33:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 5842 transitions. [2018-09-10 12:33:51,595 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 5842 transitions. Word has length 128 [2018-09-10 12:33:51,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:33:51,595 INFO L480 AbstractCegarLoop]: Abstraction has 4400 states and 5842 transitions. [2018-09-10 12:33:51,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:33:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 5842 transitions. [2018-09-10 12:33:51,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-10 12:33:51,600 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:51,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:51,600 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:33:51,602 INFO L82 PathProgramCache]: Analyzing trace with hash 502799121, now seen corresponding path program 1 times [2018-09-10 12:33:51,602 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:51,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:51,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:51,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:51,603 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:33:51,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:33:51,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:33:51,872 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:33:51,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:33:51,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:33:51,874 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:33:51,874 INFO L87 Difference]: Start difference. First operand 4400 states and 5842 transitions. Second operand 4 states. [2018-09-10 12:33:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:33:57,528 INFO L93 Difference]: Finished difference Result 8794 states and 11692 transitions. [2018-09-10 12:33:57,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:33:57,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2018-09-10 12:33:57,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:33:57,550 INFO L225 Difference]: With dead ends: 8794 [2018-09-10 12:33:57,550 INFO L226 Difference]: Without dead ends: 4400 [2018-09-10 12:33:57,565 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:33:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2018-09-10 12:33:57,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 4400. [2018-09-10 12:33:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4400 states. [2018-09-10 12:33:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 5384 transitions. [2018-09-10 12:33:57,656 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 5384 transitions. Word has length 161 [2018-09-10 12:33:57,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:33:57,657 INFO L480 AbstractCegarLoop]: Abstraction has 4400 states and 5384 transitions. [2018-09-10 12:33:57,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:33:57,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 5384 transitions. [2018-09-10 12:33:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-09-10 12:33:57,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:57,662 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 12:33:57,662 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:33:57,662 INFO L82 PathProgramCache]: Analyzing trace with hash -573630401, now seen corresponding path program 1 times [2018-09-10 12:33:57,662 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:57,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:57,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:57,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:57,664 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-10 12:33:57,849 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:33:57,849 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:33:57,849 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:33:57,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:33:57,850 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:33:57,851 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:33:57,851 INFO L87 Difference]: Start difference. First operand 4400 states and 5384 transitions. Second operand 4 states. [2018-09-10 12:34:05,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:34:05,574 INFO L93 Difference]: Finished difference Result 17371 states and 21738 transitions. [2018-09-10 12:34:05,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:34:05,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 231 [2018-09-10 12:34:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:34:05,638 INFO L225 Difference]: With dead ends: 17371 [2018-09-10 12:34:05,639 INFO L226 Difference]: Without dead ends: 12977 [2018-09-10 12:34:05,658 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:34:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12977 states. [2018-09-10 12:34:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12977 to 12274. [2018-09-10 12:34:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12274 states. [2018-09-10 12:34:05,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12274 states to 12274 states and 14834 transitions. [2018-09-10 12:34:05,924 INFO L78 Accepts]: Start accepts. Automaton has 12274 states and 14834 transitions. Word has length 231 [2018-09-10 12:34:05,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:34:05,925 INFO L480 AbstractCegarLoop]: Abstraction has 12274 states and 14834 transitions. [2018-09-10 12:34:05,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:34:05,925 INFO L276 IsEmpty]: Start isEmpty. Operand 12274 states and 14834 transitions. [2018-09-10 12:34:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-09-10 12:34:05,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:34:05,932 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:34:05,933 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:34:05,933 INFO L82 PathProgramCache]: Analyzing trace with hash -792501524, now seen corresponding path program 1 times [2018-09-10 12:34:05,933 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:34:05,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:34:05,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:05,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:34:05,934 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:34:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:06,466 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:34:06,466 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 12:34:06,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:06,491 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:34:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:06,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:34:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:07,118 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:34:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:07,887 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:34:07,887 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:34:07,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:07,911 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:34:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:08,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:34:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:08,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:34:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:08,541 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:34:08,542 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 12:34:08,542 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:34:08,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:34:08,543 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:34:08,543 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:34:08,544 INFO L87 Difference]: Start difference. First operand 12274 states and 14834 transitions. Second operand 9 states. [2018-09-10 12:34:22,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:34:22,635 INFO L93 Difference]: Finished difference Result 50149 states and 65010 transitions. [2018-09-10 12:34:22,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 12:34:22,636 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 248 [2018-09-10 12:34:22,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:34:22,845 INFO L225 Difference]: With dead ends: 50149 [2018-09-10 12:34:22,846 INFO L226 Difference]: Without dead ends: 37881 [2018-09-10 12:34:22,956 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 989 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 12:34:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37881 states. [2018-09-10 12:34:23,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37881 to 34882. [2018-09-10 12:34:23,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34882 states. [2018-09-10 12:34:23,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34882 states to 34882 states and 41399 transitions. [2018-09-10 12:34:23,957 INFO L78 Accepts]: Start accepts. Automaton has 34882 states and 41399 transitions. Word has length 248 [2018-09-10 12:34:23,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:34:23,958 INFO L480 AbstractCegarLoop]: Abstraction has 34882 states and 41399 transitions. [2018-09-10 12:34:23,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:34:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 34882 states and 41399 transitions. [2018-09-10 12:34:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-09-10 12:34:23,972 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:34:23,972 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:34:23,972 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:34:23,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1868948348, now seen corresponding path program 1 times [2018-09-10 12:34:23,973 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:34:23,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:34:23,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:23,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:34:23,974 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:34:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:24,551 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:34:24,551 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 12:34:24,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:24,567 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:34:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:24,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:34:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:25,083 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:34:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:26,320 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:34:26,320 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 12:34:26,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:26,345 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:34:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:26,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:34:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:26,799 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:34:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:34:27,095 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:34:27,095 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-10 12:34:27,095 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:34:27,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:34:27,096 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:34:27,096 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-09-10 12:34:27,097 INFO L87 Difference]: Start difference. First operand 34882 states and 41399 transitions. Second operand 9 states. [2018-09-10 12:34:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:34:43,651 INFO L93 Difference]: Finished difference Result 103009 states and 141781 transitions. [2018-09-10 12:34:43,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 12:34:43,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 272 [2018-09-10 12:34:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:34:44,129 INFO L225 Difference]: With dead ends: 103009 [2018-09-10 12:34:44,130 INFO L226 Difference]: Without dead ends: 68050 [2018-09-10 12:34:44,361 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1109 GetRequests, 1085 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2018-09-10 12:34:44,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68050 states. [2018-09-10 12:34:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68050 to 67326. [2018-09-10 12:34:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67326 states. [2018-09-10 12:34:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67326 states to 67326 states and 87759 transitions. [2018-09-10 12:34:46,492 INFO L78 Accepts]: Start accepts. Automaton has 67326 states and 87759 transitions. Word has length 272 [2018-09-10 12:34:46,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:34:46,493 INFO L480 AbstractCegarLoop]: Abstraction has 67326 states and 87759 transitions. [2018-09-10 12:34:46,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:34:46,493 INFO L276 IsEmpty]: Start isEmpty. Operand 67326 states and 87759 transitions. [2018-09-10 12:34:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-09-10 12:34:46,522 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:34:46,522 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:46,523 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:34:46,523 INFO L82 PathProgramCache]: Analyzing trace with hash -802780283, now seen corresponding path program 1 times [2018-09-10 12:34:46,523 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:34:46,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:34:46,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:46,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:34:46,524 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:34:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:47,090 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-10 12:34:47,379 WARN L175 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-10 12:34:47,706 WARN L175 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-10 12:34:48,351 WARN L175 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-10 12:34:48,977 WARN L175 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-10 12:34:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 242 proven. 88 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-10 12:34:49,761 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:34:49,762 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 12:34:49,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:49,771 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:34:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:49,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:34:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-10 12:34:50,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:34:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-10 12:34:50,732 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:34:50,732 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:34:50,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:34:50,757 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:34:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:34:51,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:34:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-10 12:34:51,511 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:34:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-10 12:34:51,723 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:34:51,723 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 23 [2018-09-10 12:34:51,723 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:34:51,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-10 12:34:51,725 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-10 12:34:51,725 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2018-09-10 12:34:51,725 INFO L87 Difference]: Start difference. First operand 67326 states and 87759 transitions. Second operand 16 states. [2018-09-10 12:35:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:19,617 INFO L93 Difference]: Finished difference Result 157192 states and 217733 transitions. [2018-09-10 12:35:19,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-09-10 12:35:19,617 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 465 [2018-09-10 12:35:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:20,060 INFO L225 Difference]: With dead ends: 157192 [2018-09-10 12:35:20,060 INFO L226 Difference]: Without dead ends: 84168 [2018-09-10 12:35:20,548 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1940 GetRequests, 1879 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=825, Invalid=2957, Unknown=0, NotChecked=0, Total=3782 [2018-09-10 12:35:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84168 states. [2018-09-10 12:35:22,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84168 to 83214. [2018-09-10 12:35:22,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83214 states. [2018-09-10 12:35:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83214 states to 83214 states and 103087 transitions. [2018-09-10 12:35:23,096 INFO L78 Accepts]: Start accepts. Automaton has 83214 states and 103087 transitions. Word has length 465 [2018-09-10 12:35:23,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:35:23,096 INFO L480 AbstractCegarLoop]: Abstraction has 83214 states and 103087 transitions. [2018-09-10 12:35:23,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-10 12:35:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 83214 states and 103087 transitions. [2018-09-10 12:35:23,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2018-09-10 12:35:23,152 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:35:23,153 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:23,153 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:35:23,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2117629346, now seen corresponding path program 1 times [2018-09-10 12:35:23,154 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:35:23,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:23,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:23,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:23,155 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:35:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 322 proven. 215 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-09-10 12:35:23,641 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:23,641 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 12:35:23,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:23,651 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:23,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 712 proven. 2 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2018-09-10 12:35:24,075 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 322 proven. 215 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-09-10 12:35:24,342 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:24,342 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 12:35:24,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:24,357 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:25,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:25,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 712 proven. 2 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2018-09-10 12:35:25,662 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 322 proven. 215 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-09-10 12:35:25,964 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:35:25,965 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 12:35:25,965 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:35:25,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:35:25,968 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:35:25,968 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:35:25,968 INFO L87 Difference]: Start difference. First operand 83214 states and 103087 transitions. Second operand 9 states. [2018-09-10 12:35:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:39,178 INFO L93 Difference]: Finished difference Result 209770 states and 291555 transitions. [2018-09-10 12:35:39,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-10 12:35:39,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 634 [2018-09-10 12:35:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:40,228 INFO L225 Difference]: With dead ends: 209770 [2018-09-10 12:35:40,228 INFO L226 Difference]: Without dead ends: 125489 [2018-09-10 12:35:40,756 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2558 GetRequests, 2535 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:35:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125489 states. [2018-09-10 12:35:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125489 to 124963. [2018-09-10 12:35:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124963 states. [2018-09-10 12:35:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124963 states to 124963 states and 175752 transitions. [2018-09-10 12:35:46,354 INFO L78 Accepts]: Start accepts. Automaton has 124963 states and 175752 transitions. Word has length 634 [2018-09-10 12:35:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:35:46,355 INFO L480 AbstractCegarLoop]: Abstraction has 124963 states and 175752 transitions. [2018-09-10 12:35:46,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:35:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 124963 states and 175752 transitions. [2018-09-10 12:35:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2018-09-10 12:35:46,394 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:35:46,395 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:46,396 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:35:46,396 INFO L82 PathProgramCache]: Analyzing trace with hash -801705299, now seen corresponding path program 1 times [2018-09-10 12:35:46,396 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:35:46,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:46,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:46,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:46,401 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:35:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:46,974 WARN L175 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-09-10 12:35:48,259 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 279 proven. 42 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-10 12:35:48,259 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:48,259 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 12:35:48,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:48,268 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:48,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2018-09-10 12:35:48,799 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2018-09-10 12:35:49,783 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:35:49,784 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 12:35:49,784 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:35:49,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:35:49,785 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:35:49,785 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:35:49,785 INFO L87 Difference]: Start difference. First operand 124963 states and 175752 transitions. Second operand 3 states. [2018-09-10 12:35:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:56,848 INFO L93 Difference]: Finished difference Result 237225 states and 319338 transitions. [2018-09-10 12:35:56,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:35:56,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 705 [2018-09-10 12:35:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:57,227 INFO L225 Difference]: With dead ends: 237225 [2018-09-10 12:35:57,228 INFO L226 Difference]: Without dead ends: 116524 [2018-09-10 12:35:57,688 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1409 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:35:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116524 states. [2018-09-10 12:36:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116524 to 115227. [2018-09-10 12:36:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115227 states. [2018-09-10 12:36:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115227 states to 115227 states and 133076 transitions. [2018-09-10 12:36:05,830 INFO L78 Accepts]: Start accepts. Automaton has 115227 states and 133076 transitions. Word has length 705 [2018-09-10 12:36:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:36:05,832 INFO L480 AbstractCegarLoop]: Abstraction has 115227 states and 133076 transitions. [2018-09-10 12:36:05,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:36:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 115227 states and 133076 transitions. [2018-09-10 12:36:05,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2018-09-10 12:36:05,877 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:36:05,878 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-09-10 12:36:05,878 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:36:05,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1132048657, now seen corresponding path program 1 times [2018-09-10 12:36:05,878 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:36:05,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:36:05,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:36:05,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:36:05,880 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:36:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:36:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 343 proven. 431 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-10 12:36:06,859 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:36:06,859 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:36:06,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:36:06,867 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:36:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:36:07,117 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:36:08,207 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 480 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-10 12:36:08,207 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:36:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 480 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-10 12:36:08,612 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:36:08,613 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:36:08,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:36:08,628 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:36:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:36:09,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:36:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 480 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-10 12:36:09,688 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:36:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 480 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-10 12:36:10,140 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:36:10,141 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 17 [2018-09-10 12:36:10,141 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:36:10,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-10 12:36:10,143 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-10 12:36:10,143 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-09-10 12:36:10,143 INFO L87 Difference]: Start difference. First operand 115227 states and 133076 transitions. Second operand 16 states. [2018-09-10 12:36:33,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:36:33,573 INFO L93 Difference]: Finished difference Result 231820 states and 271367 transitions. [2018-09-10 12:36:33,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-09-10 12:36:33,574 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 799 [2018-09-10 12:36:33,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:36:34,324 INFO L225 Difference]: With dead ends: 231820 [2018-09-10 12:36:34,325 INFO L226 Difference]: Without dead ends: 105326 [2018-09-10 12:36:34,545 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3339 GetRequests, 3249 SyntacticMatches, 7 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2415 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1080, Invalid=6060, Unknown=0, NotChecked=0, Total=7140 [2018-09-10 12:36:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105326 states. [2018-09-10 12:36:35,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105326 to 104322. [2018-09-10 12:36:35,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104322 states. [2018-09-10 12:36:35,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104322 states to 104322 states and 113350 transitions. [2018-09-10 12:36:35,946 INFO L78 Accepts]: Start accepts. Automaton has 104322 states and 113350 transitions. Word has length 799 [2018-09-10 12:36:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:36:35,947 INFO L480 AbstractCegarLoop]: Abstraction has 104322 states and 113350 transitions. [2018-09-10 12:36:35,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-10 12:36:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 104322 states and 113350 transitions. [2018-09-10 12:36:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2018-09-10 12:36:35,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:36:35,972 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-09-10 12:36:35,972 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:36:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash 267483742, now seen corresponding path program 1 times [2018-09-10 12:36:35,973 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:36:35,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:36:35,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:36:35,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:36:35,973 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:36:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:36:37,271 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2018-09-10 12:36:37,272 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:36:37,272 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:36:37,272 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:36:37,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:36:37,273 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:36:37,273 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:36:37,273 INFO L87 Difference]: Start difference. First operand 104322 states and 113350 transitions. Second operand 4 states. [2018-09-10 12:36:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:36:44,630 INFO L93 Difference]: Finished difference Result 280570 states and 309015 transitions. [2018-09-10 12:36:44,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:36:44,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 800 [2018-09-10 12:36:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:36:44,636 INFO L225 Difference]: With dead ends: 280570 [2018-09-10 12:36:44,636 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 12:36:45,562 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:36:45,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 12:36:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 12:36:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 12:36:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 12:36:45,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 800 [2018-09-10 12:36:45,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:36:45,565 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 12:36:45,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:36:45,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 12:36:45,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 12:36:45,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2018-09-10 12:36:45,782 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-10 12:36:45,783 INFO L168 Benchmark]: Toolchain (without parser) took 215537.74 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-10 12:36:45,784 INFO L168 Benchmark]: CDTParser took 0.20 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 12:36:45,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1827.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:45,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 189.33 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:45,787 INFO L168 Benchmark]: Boogie Preprocessor took 609.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 867.7 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 85.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:45,788 INFO L168 Benchmark]: RCFGBuilder took 8321.00 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 547.4 MB). Peak memory consumption was 547.4 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:45,789 INFO L168 Benchmark]: TraceAbstraction took 204583.92 ms. Allocated memory was 2.4 GB in the beginning and 5.1 GB in the end (delta: 2.7 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-10 12:36:45,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1827.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 189.33 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 609.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 867.7 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 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8321.00 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 547.4 MB). Peak memory consumption was 547.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204583.92 ms. Allocated memory was 2.4 GB in the beginning and 5.1 GB in the end (delta: 2.7 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 150]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 22. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label07_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-36-45-828.csv Completed graceful shutdown