java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:55:44,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:55:44,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:55:44,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:55:44,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:55:44,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:55:44,152 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:55:44,154 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:55:44,155 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:55:44,156 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:55:44,157 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:55:44,157 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:55:44,158 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:55:44,159 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:55:44,160 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:55:44,161 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:55:44,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:55:44,164 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:55:44,166 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:55:44,167 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:55:44,168 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:55:44,169 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:55:44,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:55:44,172 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:55:44,172 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:55:44,173 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:55:44,174 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:55:44,175 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:55:44,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:55:44,177 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:55:44,177 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:55:44,177 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:55:44,178 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:55:44,178 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:55:44,179 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:55:44,179 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:55:44,180 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:55:44,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:55:44,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:55:44,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:55:44,197 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:55:44,197 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:55:44,197 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:55:44,198 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:55:44,198 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:55:44,198 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:55:44,198 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:55:44,198 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:55:44,199 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:55:44,199 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:55:44,200 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:55:44,200 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:55:44,200 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:55:44,200 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:55:44,201 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:55:44,201 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:55:44,201 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:55:44,201 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:55:44,201 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:55:44,202 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:55:44,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:55:44,202 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:55:44,202 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:55:44,202 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:55:44,203 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:55:44,203 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:55:44,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:55:44,203 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:55:44,203 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:55:44,203 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:55:44,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:55:44,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:55:44,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:55:44,264 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:55:44,264 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:55:44,265 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c [2018-07-24 14:55:44,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f2bb1f2/a3903236e5cb4c49a9010c1f233fa476/FLAG36b481efb [2018-07-24 14:55:45,014 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:55:45,015 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c [2018-07-24 14:55:45,047 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f2bb1f2/a3903236e5cb4c49a9010c1f233fa476/FLAG36b481efb [2018-07-24 14:55:45,071 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f2bb1f2/a3903236e5cb4c49a9010c1f233fa476 [2018-07-24 14:55:45,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:55:45,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:55:45,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:55:45,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:55:45,092 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:55:45,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:55:45" (1/1) ... [2018-07-24 14:55:45,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d113511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:45, skipping insertion in model container [2018-07-24 14:55:45,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:55:45" (1/1) ... [2018-07-24 14:55:45,407 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:55:46,208 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:55:46,226 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:55:46,925 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:55:47,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47 WrapperNode [2018-07-24 14:55:47,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:55:47,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:55:47,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:55:47,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:55:47,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:47,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:47,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:55:47,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:55:47,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:55:47,453 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:55:48,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... [2018-07-24 14:55:48,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:55:48,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:55:48,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:55:48,382 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:55:48,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:55:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:55:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:55:48,460 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 [2018-07-24 14:55:48,460 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 [2018-07-24 14:55:48,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:55:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:55:48,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:55:48,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:55:48,461 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 [2018-07-24 14:55:48,461 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 [2018-07-24 14:55:58,640 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:55:58,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:55:58 BoogieIcfgContainer [2018-07-24 14:55:58,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:55:58,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:55:58,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:55:58,647 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:55:58,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:55:45" (1/3) ... [2018-07-24 14:55:58,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72483bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:55:58, skipping insertion in model container [2018-07-24 14:55:58,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:47" (2/3) ... [2018-07-24 14:55:58,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72483bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:55:58, skipping insertion in model container [2018-07-24 14:55:58,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:55:58" (3/3) ... [2018-07-24 14:55:58,650 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label45_true-unreach-call.c [2018-07-24 14:55:58,660 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:55:58,670 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:55:58,729 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:55:58,730 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:55:58,730 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:55:58,730 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:55:58,731 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:55:58,731 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:55:58,731 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:55:58,731 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:55:58,731 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:55:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 14:55:58,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-24 14:55:58,782 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:55:58,786 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:55:58,787 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:55:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash -850091047, now seen corresponding path program 1 times [2018-07-24 14:55:58,796 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:55:58,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:55:58,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:55:58,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:55:58,845 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:55:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:55:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:55:59,413 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:55:59,414 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:55:59,414 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:55:59,420 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:55:59,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:55:59,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:55:59,460 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 14:56:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:56:11,082 INFO L93 Difference]: Finished difference Result 2118 states and 3937 transitions. [2018-07-24 14:56:11,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:56:11,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-07-24 14:56:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:56:11,113 INFO L225 Difference]: With dead ends: 2118 [2018-07-24 14:56:11,114 INFO L226 Difference]: Without dead ends: 1508 [2018-07-24 14:56:11,126 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:56:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2018-07-24 14:56:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1039. [2018-07-24 14:56:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-07-24 14:56:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1596 transitions. [2018-07-24 14:56:11,270 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1596 transitions. Word has length 57 [2018-07-24 14:56:11,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:56:11,271 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1596 transitions. [2018-07-24 14:56:11,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:56:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1596 transitions. [2018-07-24 14:56:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-24 14:56:11,282 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:56:11,283 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:56:11,284 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:56:11,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1103404969, now seen corresponding path program 1 times [2018-07-24 14:56:11,285 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:56:11,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:11,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:11,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:11,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:56:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:11,636 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:56:11,636 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:56:11,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:11,655 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:56:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:11,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:56:16,261 WARN L169 SmtUtils]: Spent 4.11 s on a formula simplification that was a NOOP. DAG size: 42 [2018-07-24 14:56:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:16,390 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:56:17,144 WARN L169 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-07-24 14:56:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:17,598 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:56:17,599 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-24 14:56:17,599 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:56:17,600 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:56:17,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:56:17,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:56:17,602 INFO L87 Difference]: Start difference. First operand 1039 states and 1596 transitions. Second operand 6 states. [2018-07-24 14:56:49,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:56:49,543 INFO L93 Difference]: Finished difference Result 3453 states and 5550 transitions. [2018-07-24 14:56:49,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:56:49,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-07-24 14:56:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:56:49,564 INFO L225 Difference]: With dead ends: 3453 [2018-07-24 14:56:49,565 INFO L226 Difference]: Without dead ends: 2420 [2018-07-24 14:56:49,572 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 259 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:56:49,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2018-07-24 14:56:49,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2412. [2018-07-24 14:56:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2018-07-24 14:56:49,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3754 transitions. [2018-07-24 14:56:49,668 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3754 transitions. Word has length 132 [2018-07-24 14:56:49,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:56:49,668 INFO L471 AbstractCegarLoop]: Abstraction has 2412 states and 3754 transitions. [2018-07-24 14:56:49,669 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:56:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3754 transitions. [2018-07-24 14:56:49,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-24 14:56:49,673 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:56:49,674 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:56:49,674 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:56:49,674 INFO L82 PathProgramCache]: Analyzing trace with hash -373950294, now seen corresponding path program 1 times [2018-07-24 14:56:49,674 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:56:49,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:49,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:49,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:49,676 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:56:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:50,056 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:56:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:50,717 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:56:50,717 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:56:50,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:50,728 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:56:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:50,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:56:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:50,960 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:56:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:51,217 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:56:51,217 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 14:56:51,218 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:56:51,218 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:56:51,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:56:51,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:56:51,219 INFO L87 Difference]: Start difference. First operand 2412 states and 3754 transitions. Second operand 3 states. [2018-07-24 14:56:58,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:56:58,456 INFO L93 Difference]: Finished difference Result 6995 states and 11104 transitions. [2018-07-24 14:56:58,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:56:58,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-07-24 14:56:58,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:56:58,497 INFO L225 Difference]: With dead ends: 6995 [2018-07-24 14:56:58,497 INFO L226 Difference]: Without dead ends: 4589 [2018-07-24 14:56:58,510 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 289 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:56:58,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2018-07-24 14:56:58,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 4588. [2018-07-24 14:56:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4588 states. [2018-07-24 14:56:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 7097 transitions. [2018-07-24 14:56:58,654 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 7097 transitions. Word has length 145 [2018-07-24 14:56:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:56:58,655 INFO L471 AbstractCegarLoop]: Abstraction has 4588 states and 7097 transitions. [2018-07-24 14:56:58,655 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:56:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 7097 transitions. [2018-07-24 14:56:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-07-24 14:56:58,663 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:56:58,663 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:56:58,663 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:56:58,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1293578818, now seen corresponding path program 1 times [2018-07-24 14:56:58,664 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:56:58,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:58,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:58,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:58,667 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:56:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:59,031 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:56:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 101 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 14:56:59,146 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:56:59,146 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:56:59,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:59,155 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:56:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:59,257 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:56:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:59,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:56:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:59,917 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:56:59,917 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:56:59,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:59,932 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:00,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 14:57:00,306 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 14:57:00,664 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:57:00,665 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-07-24 14:57:00,665 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:57:00,665 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:57:00,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:57:00,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:57:00,666 INFO L87 Difference]: Start difference. First operand 4588 states and 7097 transitions. Second operand 5 states. [2018-07-24 14:57:10,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:10,282 INFO L93 Difference]: Finished difference Result 11431 states and 17851 transitions. [2018-07-24 14:57:10,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:57:10,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 222 [2018-07-24 14:57:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:10,316 INFO L225 Difference]: With dead ends: 11431 [2018-07-24 14:57:10,316 INFO L226 Difference]: Without dead ends: 6849 [2018-07-24 14:57:10,332 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 876 SyntacticMatches, 9 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:57:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2018-07-24 14:57:10,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2018-07-24 14:57:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6849 states. [2018-07-24 14:57:10,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9659 transitions. [2018-07-24 14:57:10,510 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9659 transitions. Word has length 222 [2018-07-24 14:57:10,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:10,511 INFO L471 AbstractCegarLoop]: Abstraction has 6849 states and 9659 transitions. [2018-07-24 14:57:10,511 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:57:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9659 transitions. [2018-07-24 14:57:10,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-24 14:57:10,515 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:10,516 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:57:10,516 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:10,516 INFO L82 PathProgramCache]: Analyzing trace with hash 2017104887, now seen corresponding path program 1 times [2018-07-24 14:57:10,517 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:10,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:10,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:10,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:10,518 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:11,125 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:57:11,125 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:57:11,125 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:57:11,126 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:57:11,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:57:11,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:57:11,126 INFO L87 Difference]: Start difference. First operand 6849 states and 9659 transitions. Second operand 6 states. [2018-07-24 14:57:29,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:29,089 INFO L93 Difference]: Finished difference Result 24559 states and 36653 transitions. [2018-07-24 14:57:29,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:57:29,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 223 [2018-07-24 14:57:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:29,200 INFO L225 Difference]: With dead ends: 24559 [2018-07-24 14:57:29,200 INFO L226 Difference]: Without dead ends: 17716 [2018-07-24 14:57:29,238 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:57:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17716 states. [2018-07-24 14:57:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17716 to 17694. [2018-07-24 14:57:29,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17694 states. [2018-07-24 14:57:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17694 states to 17694 states and 24044 transitions. [2018-07-24 14:57:29,749 INFO L78 Accepts]: Start accepts. Automaton has 17694 states and 24044 transitions. Word has length 223 [2018-07-24 14:57:29,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:29,750 INFO L471 AbstractCegarLoop]: Abstraction has 17694 states and 24044 transitions. [2018-07-24 14:57:29,750 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:57:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand 17694 states and 24044 transitions. [2018-07-24 14:57:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-24 14:57:29,760 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:29,761 INFO L353 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:57:29,761 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:29,761 INFO L82 PathProgramCache]: Analyzing trace with hash 90857531, now seen corresponding path program 1 times [2018-07-24 14:57:29,761 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:29,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:29,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:29,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:29,764 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-24 14:57:29,955 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:57:29,955 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:57:29,955 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:57:29,955 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:57:29,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:57:29,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:57:29,956 INFO L87 Difference]: Start difference. First operand 17694 states and 24044 transitions. Second operand 3 states. [2018-07-24 14:57:38,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:57:38,595 INFO L93 Difference]: Finished difference Result 40256 states and 56981 transitions. [2018-07-24 14:57:38,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:57:38,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2018-07-24 14:57:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:57:38,704 INFO L225 Difference]: With dead ends: 40256 [2018-07-24 14:57:38,704 INFO L226 Difference]: Without dead ends: 22568 [2018-07-24 14:57:38,770 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:57:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22568 states. [2018-07-24 14:57:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22568 to 22561. [2018-07-24 14:57:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22561 states. [2018-07-24 14:57:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22561 states to 22561 states and 31427 transitions. [2018-07-24 14:57:39,379 INFO L78 Accepts]: Start accepts. Automaton has 22561 states and 31427 transitions. Word has length 234 [2018-07-24 14:57:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:57:39,379 INFO L471 AbstractCegarLoop]: Abstraction has 22561 states and 31427 transitions. [2018-07-24 14:57:39,379 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:57:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 22561 states and 31427 transitions. [2018-07-24 14:57:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-07-24 14:57:39,393 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:57:39,394 INFO L353 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:57:39,394 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:57:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1985713205, now seen corresponding path program 1 times [2018-07-24 14:57:39,395 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:57:39,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:39,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:39,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:57:39,396 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:57:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 105 proven. 80 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-07-24 14:57:40,249 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:57:40,249 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-07-24 14:57:40,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:40,257 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:40,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 14:57:40,809 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 105 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:41,947 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:57:41,947 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 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 [2018-07-24 14:57:41,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:57:41,966 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:57:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:57:42,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:57:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 14:57:42,722 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:57:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 105 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:57:43,318 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:57:43,318 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-07-24 14:57:43,318 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:57:43,319 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 14:57:43,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 14:57:43,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:57:43,320 INFO L87 Difference]: Start difference. First operand 22561 states and 31427 transitions. Second operand 11 states. [2018-07-24 14:58:18,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:18,693 INFO L93 Difference]: Finished difference Result 89367 states and 141373 transitions. [2018-07-24 14:58:18,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 14:58:18,693 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 305 [2018-07-24 14:58:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:19,122 INFO L225 Difference]: With dead ends: 89367 [2018-07-24 14:58:19,122 INFO L226 Difference]: Without dead ends: 66812 [2018-07-24 14:58:19,250 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1208 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2018-07-24 14:58:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66812 states. [2018-07-24 14:58:21,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66812 to 59613. [2018-07-24 14:58:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59613 states. [2018-07-24 14:58:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59613 states to 59613 states and 86066 transitions. [2018-07-24 14:58:21,427 INFO L78 Accepts]: Start accepts. Automaton has 59613 states and 86066 transitions. Word has length 305 [2018-07-24 14:58:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:21,427 INFO L471 AbstractCegarLoop]: Abstraction has 59613 states and 86066 transitions. [2018-07-24 14:58:21,427 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 14:58:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 59613 states and 86066 transitions. [2018-07-24 14:58:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-07-24 14:58:21,468 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:21,468 INFO L353 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:58:21,468 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:21,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1880987668, now seen corresponding path program 1 times [2018-07-24 14:58:21,469 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:21,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:21,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:21,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:21,470 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:21,793 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:58:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 156 proven. 178 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 14:58:22,118 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:22,118 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-07-24 14:58:22,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:22,125 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:22,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-07-24 14:58:22,843 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:23,051 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 14:58:23,352 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 228 proven. 107 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 14:58:23,374 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:23,374 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 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 [2018-07-24 14:58:23,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:23,391 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:23,736 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-07-24 14:58:23,870 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 158 proven. 173 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 14:58:24,570 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:58:24,571 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 13 [2018-07-24 14:58:24,571 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:58:24,572 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:58:24,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:58:24,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:58:24,573 INFO L87 Difference]: Start difference. First operand 59613 states and 86066 transitions. Second operand 5 states. [2018-07-24 14:58:30,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:30,952 INFO L93 Difference]: Finished difference Result 119297 states and 172636 transitions. [2018-07-24 14:58:30,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:58:30,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 400 [2018-07-24 14:58:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:31,085 INFO L225 Difference]: With dead ends: 119297 [2018-07-24 14:58:31,085 INFO L226 Difference]: Without dead ends: 43390 [2018-07-24 14:58:31,288 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1608 GetRequests, 1587 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:58:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43390 states. [2018-07-24 14:58:32,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43390 to 42492. [2018-07-24 14:58:32,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42492 states. [2018-07-24 14:58:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42492 states to 42492 states and 53218 transitions. [2018-07-24 14:58:32,784 INFO L78 Accepts]: Start accepts. Automaton has 42492 states and 53218 transitions. Word has length 400 [2018-07-24 14:58:32,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:32,785 INFO L471 AbstractCegarLoop]: Abstraction has 42492 states and 53218 transitions. [2018-07-24 14:58:32,785 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:58:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 42492 states and 53218 transitions. [2018-07-24 14:58:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-07-24 14:58:32,804 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:32,805 INFO L353 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, 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, 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] [2018-07-24 14:58:32,805 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:32,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1071798165, now seen corresponding path program 1 times [2018-07-24 14:58:32,805 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:32,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:32,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:32,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:32,807 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 156 proven. 192 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 14:58:33,267 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:33,267 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-07-24 14:58:33,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:33,277 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:33,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2018-07-24 14:58:33,742 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2018-07-24 14:58:34,185 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:58:34,185 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-07-24 14:58:34,185 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:58:34,186 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:58:34,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:58:34,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:58:34,186 INFO L87 Difference]: Start difference. First operand 42492 states and 53218 transitions. Second operand 3 states. [2018-07-24 14:58:40,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:40,636 INFO L93 Difference]: Finished difference Result 96865 states and 123186 transitions. [2018-07-24 14:58:40,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:58:40,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2018-07-24 14:58:40,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:40,806 INFO L225 Difference]: With dead ends: 96865 [2018-07-24 14:58:40,807 INFO L226 Difference]: Without dead ends: 54384 [2018-07-24 14:58:40,887 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:58:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54384 states. [2018-07-24 14:58:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54384 to 54363. [2018-07-24 14:58:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54363 states. [2018-07-24 14:58:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54363 states to 54363 states and 67621 transitions. [2018-07-24 14:58:42,471 INFO L78 Accepts]: Start accepts. Automaton has 54363 states and 67621 transitions. Word has length 413 [2018-07-24 14:58:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:42,472 INFO L471 AbstractCegarLoop]: Abstraction has 54363 states and 67621 transitions. [2018-07-24 14:58:42,472 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:58:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand 54363 states and 67621 transitions. [2018-07-24 14:58:42,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2018-07-24 14:58:42,554 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:42,554 INFO L353 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:58:42,555 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:42,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1811383115, now seen corresponding path program 1 times [2018-07-24 14:58:42,555 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:42,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:42,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:42,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:42,557 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2018-07-24 14:58:43,191 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:43,191 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-07-24 14:58:43,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:43,204 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:43,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-07-24 14:58:43,675 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2018-07-24 14:58:44,743 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:58:44,744 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-07-24 14:58:44,744 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:58:44,745 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:58:44,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:58:44,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:58:44,745 INFO L87 Difference]: Start difference. First operand 54363 states and 67621 transitions. Second operand 3 states. [2018-07-24 14:58:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:48,438 INFO L93 Difference]: Finished difference Result 120582 states and 151845 transitions. [2018-07-24 14:58:48,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:58:48,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 729 [2018-07-24 14:58:48,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:48,599 INFO L225 Difference]: With dead ends: 120582 [2018-07-24 14:58:48,599 INFO L226 Difference]: Without dead ends: 63613 [2018-07-24 14:58:48,681 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1460 GetRequests, 1459 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:58:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63613 states. [2018-07-24 14:58:49,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63613 to 63607. [2018-07-24 14:58:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63607 states. [2018-07-24 14:58:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63607 states to 63607 states and 79306 transitions. [2018-07-24 14:58:49,793 INFO L78 Accepts]: Start accepts. Automaton has 63607 states and 79306 transitions. Word has length 729 [2018-07-24 14:58:49,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:49,794 INFO L471 AbstractCegarLoop]: Abstraction has 63607 states and 79306 transitions. [2018-07-24 14:58:49,794 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:58:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 63607 states and 79306 transitions. [2018-07-24 14:58:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2018-07-24 14:58:49,861 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:49,861 INFO L353 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, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:58:49,862 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:49,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1695791596, now seen corresponding path program 1 times [2018-07-24 14:58:49,862 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:49,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:49,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:49,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:49,863 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2018-07-24 14:58:51,199 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:58:51,200 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:58:51,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:51,210 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:58:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:58:51,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:58:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2018-07-24 14:58:51,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:58:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2018-07-24 14:58:52,497 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:58:52,497 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-07-24 14:58:52,497 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:58:52,498 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:58:52,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:58:52,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:58:52,499 INFO L87 Difference]: Start difference. First operand 63607 states and 79306 transitions. Second operand 3 states. [2018-07-24 14:58:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:58:57,917 INFO L93 Difference]: Finished difference Result 153972 states and 193458 transitions. [2018-07-24 14:58:57,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:58:57,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 753 [2018-07-24 14:58:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:58:58,157 INFO L225 Difference]: With dead ends: 153972 [2018-07-24 14:58:58,157 INFO L226 Difference]: Without dead ends: 90376 [2018-07-24 14:58:58,259 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1508 GetRequests, 1506 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:58:58,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90376 states. [2018-07-24 14:58:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90376 to 89919. [2018-07-24 14:58:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89919 states. [2018-07-24 14:58:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89919 states to 89919 states and 111517 transitions. [2018-07-24 14:58:59,656 INFO L78 Accepts]: Start accepts. Automaton has 89919 states and 111517 transitions. Word has length 753 [2018-07-24 14:58:59,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:58:59,657 INFO L471 AbstractCegarLoop]: Abstraction has 89919 states and 111517 transitions. [2018-07-24 14:58:59,657 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:58:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 89919 states and 111517 transitions. [2018-07-24 14:58:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2018-07-24 14:58:59,721 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:58:59,721 INFO L353 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:58:59,722 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:58:59,722 INFO L82 PathProgramCache]: Analyzing trace with hash -2092432755, now seen corresponding path program 1 times [2018-07-24 14:58:59,722 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:58:59,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:59,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:58:59,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:58:59,723 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:58:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2018-07-24 14:59:00,976 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:59:00,976 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:59:00,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:00,984 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:59:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:01,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:59:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 769 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-07-24 14:59:01,689 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:59:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 222 proven. 8 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2018-07-24 14:59:02,246 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:59:02,246 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2018-07-24 14:59:02,246 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:59:02,247 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:59:02,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:59:02,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:59:02,248 INFO L87 Difference]: Start difference. First operand 89919 states and 111517 transitions. Second operand 3 states. [2018-07-24 14:59:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:59:05,392 INFO L93 Difference]: Finished difference Result 164784 states and 203088 transitions. [2018-07-24 14:59:05,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:59:05,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 839 [2018-07-24 14:59:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:59:05,598 INFO L225 Difference]: With dead ends: 164784 [2018-07-24 14:59:05,599 INFO L226 Difference]: Without dead ends: 74874 [2018-07-24 14:59:05,726 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1681 GetRequests, 1673 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:59:05,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74874 states. [2018-07-24 14:59:06,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74874 to 74240. [2018-07-24 14:59:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74240 states. [2018-07-24 14:59:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74240 states to 74240 states and 89145 transitions. [2018-07-24 14:59:06,642 INFO L78 Accepts]: Start accepts. Automaton has 74240 states and 89145 transitions. Word has length 839 [2018-07-24 14:59:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:59:06,644 INFO L471 AbstractCegarLoop]: Abstraction has 74240 states and 89145 transitions. [2018-07-24 14:59:06,644 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:59:06,644 INFO L276 IsEmpty]: Start isEmpty. Operand 74240 states and 89145 transitions. [2018-07-24 14:59:06,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2018-07-24 14:59:06,721 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:59:06,722 INFO L353 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:59:06,722 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:59:06,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1623096804, now seen corresponding path program 1 times [2018-07-24 14:59:06,723 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:59:06,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:06,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:06,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:06,724 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:59:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 207 proven. 423 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2018-07-24 14:59:08,220 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:59:08,220 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:59:08,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:08,231 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:59:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:08,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:59:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 627 proven. 2 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-24 14:59:09,923 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:59:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 627 proven. 2 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-24 14:59:10,858 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:59:10,859 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:59:10,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:10,875 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:59:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:11,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:59:12,159 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 22 [2018-07-24 14:59:12,863 WARN L1032 $PredicateComparison]: unable to prove that (or (exists ((v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a28~0_BEFORE_CALL_2 Int)) (and (<= c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a28~0 (+ (div (+ (mod v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a28~0_BEFORE_CALL_2 299849) 300149) 5) 2557)) (<= 0 v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a28~0_BEFORE_CALL_2))) (exists ((v_prenex_20 Int)) (<= c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a28~0 (+ (div (+ (mod v_prenex_20 299849) 300) 5) 2557))) (exists ((v_prenex_19 Int)) (let ((.cse0 (mod v_prenex_19 299849))) (and (= .cse0 0) (<= c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a28~0 (+ (div (+ .cse0 300149) 5) 2557)))))) is different from true [2018-07-24 14:59:13,514 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 576 proven. 46 refuted. 0 times theorem prover too weak. 256 trivial. 7 not checked. [2018-07-24 14:59:13,514 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:59:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 627 proven. 2 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-24 14:59:14,223 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:59:14,224 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6, 8, 6] total 29 [2018-07-24 14:59:14,225 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:59:14,227 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-24 14:59:14,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-24 14:59:14,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=628, Unknown=1, NotChecked=52, Total=812 [2018-07-24 14:59:14,228 INFO L87 Difference]: Start difference. First operand 74240 states and 89145 transitions. Second operand 15 states. [2018-07-24 14:59:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:59:34,006 INFO L93 Difference]: Finished difference Result 154729 states and 190224 transitions. [2018-07-24 14:59:34,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-24 14:59:34,006 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 891 [2018-07-24 14:59:34,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:59:34,320 INFO L225 Difference]: With dead ends: 154729 [2018-07-24 14:59:34,320 INFO L226 Difference]: Without dead ends: 80500 [2018-07-24 14:59:34,458 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3598 GetRequests, 3557 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=265, Invalid=1144, Unknown=1, NotChecked=72, Total=1482 [2018-07-24 14:59:34,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80500 states. [2018-07-24 14:59:35,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80500 to 72350. [2018-07-24 14:59:35,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72350 states. [2018-07-24 14:59:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72350 states to 72350 states and 85473 transitions. [2018-07-24 14:59:36,083 INFO L78 Accepts]: Start accepts. Automaton has 72350 states and 85473 transitions. Word has length 891 [2018-07-24 14:59:36,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:59:36,084 INFO L471 AbstractCegarLoop]: Abstraction has 72350 states and 85473 transitions. [2018-07-24 14:59:36,084 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-24 14:59:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 72350 states and 85473 transitions. [2018-07-24 14:59:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2018-07-24 14:59:36,145 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:59:36,145 INFO L353 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, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:59:36,146 INFO L414 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:59:36,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1202235276, now seen corresponding path program 1 times [2018-07-24 14:59:36,146 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:59:36,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:36,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:36,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:36,147 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:59:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 14:59:36,852 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:59:36,856 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:59:36,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:59:36 BoogieIcfgContainer [2018-07-24 14:59:36,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:59:36,858 INFO L168 Benchmark]: Toolchain (without parser) took 231774.93 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -872.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 14:59:36,859 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-24 14:59:36,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2077.10 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:59:36,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 289.48 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:59:36,861 INFO L168 Benchmark]: Boogie Preprocessor took 928.47 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 912.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-07-24 14:59:36,861 INFO L168 Benchmark]: RCFGBuilder took 10260.06 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: 491.3 MB). Peak memory consumption was 491.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:59:36,862 INFO L168 Benchmark]: TraceAbstraction took 218214.82 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -460.7 MB). Peak memory consumption was 978.0 MB. Max. memory is 7.1 GB. [2018-07-24 14:59:36,872 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2077.10 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 289.48 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 928.47 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 912.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10260.06 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: 491.3 MB). Peak memory consumption was 491.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218214.82 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -460.7 MB). Peak memory consumption was 978.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 158]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 158). Cancelled while BasicCegarLoop was analyzing trace of length 908 with TraceHistMax 6, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 218.1s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 170.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5098 SDtfs, 24062 SDslu, 2870 SDs, 0 SdLazy, 39215 SolverSat, 8883 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 147.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13413 GetRequests, 13252 SyntacticMatches, 37 SemanticMatches, 124 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89919occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 17872 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 11990 NumberOfCodeBlocks, 11990 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 18596 ConstructedInterpolants, 389 QuantifiedInterpolants, 26383464 SizeOfPredicates, 26 NumberOfNonLiveVariables, 9907 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 41 InterpolantComputations, 13 PerfectInterpolantSequences, 16805/18322 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-59-36-895.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-59-36-895.csv Completed graceful shutdown