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/Problem12_label29_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:10:53,251 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:10:53,253 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:10:53,272 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:10:53,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:10:53,274 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:10:53,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:10:53,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:10:53,281 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:10:53,288 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:10:53,289 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:10:53,290 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:10:53,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:10:53,293 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:10:53,294 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:10:53,295 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:10:53,299 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:10:53,302 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:10:53,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:10:53,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:10:53,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:10:53,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:10:53,319 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:10:53,319 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:10:53,319 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:10:53,321 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:10:53,322 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:10:53,323 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:10:53,324 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:10:53,325 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:10:53,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:10:53,326 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:10:53,326 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:10:53,326 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:10:53,327 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:10:53,330 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:10:53,330 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 14:10:53,357 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:10:53,358 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:10:53,361 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:10:53,361 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:10:53,361 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:10:53,362 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:10:53,362 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:10:53,362 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:10:53,362 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:10:53,362 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:10:53,362 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:10:53,364 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:10:53,364 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:10:53,364 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:10:53,364 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:10:53,364 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:10:53,365 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:10:53,365 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:10:53,365 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:10:53,365 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:10:53,365 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:10:53,366 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:10:53,366 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:10:53,366 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:10:53,368 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:10:53,368 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:10:53,368 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:10:53,368 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:10:53,369 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:10:53,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:10:53,369 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:10:53,369 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:10:53,370 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:10:53,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:10:53,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:10:53,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:10:53,450 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:10:53,450 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:10:53,451 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label29_true-unreach-call.c [2018-07-24 14:10:53,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c006d4e9/2d355cd526ad47d5a92ddf7281f64ed1/FLAG233e790d9 [2018-07-24 14:10:54,235 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:10:54,236 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label29_true-unreach-call.c [2018-07-24 14:10:54,274 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c006d4e9/2d355cd526ad47d5a92ddf7281f64ed1/FLAG233e790d9 [2018-07-24 14:10:54,298 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c006d4e9/2d355cd526ad47d5a92ddf7281f64ed1 [2018-07-24 14:10:54,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:10:54,314 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:10:54,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:10:54,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:10:54,326 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:10:54,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:10:54" (1/1) ... [2018-07-24 14:10:54,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a59828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:54, skipping insertion in model container [2018-07-24 14:10:54,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:10:54" (1/1) ... [2018-07-24 14:10:54,703 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:10:55,756 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:10:55,775 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:10:56,518 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:10:56,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56 WrapperNode [2018-07-24 14:10:56,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:10:56,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:10:56,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:10:56,799 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:10:56,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:56,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:10:57,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:10:57,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:10:57,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:10:57,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:57,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (1/1) ... [2018-07-24 14:10:58,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:10:58,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:10:58,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:10:58,007 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:10:58,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (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 14:10:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:10:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:10:58,088 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 14:10:58,088 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 14:10:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:10:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:10:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:10:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:10:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:10:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:10:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:10:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:10:58,089 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 14:10:58,090 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 14:11:10,441 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:11:10,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:11:10 BoogieIcfgContainer [2018-07-24 14:11:10,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:11:10,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:11:10,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:11:10,446 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:11:10,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:10:54" (1/3) ... [2018-07-24 14:11:10,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b273ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:11:10, skipping insertion in model container [2018-07-24 14:11:10,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:10:56" (2/3) ... [2018-07-24 14:11:10,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b273ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:11:10, skipping insertion in model container [2018-07-24 14:11:10,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:11:10" (3/3) ... [2018-07-24 14:11:10,450 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label29_true-unreach-call.c [2018-07-24 14:11:10,460 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:11:10,470 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:11:10,533 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:11:10,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:11:10,534 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:11:10,534 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:11:10,535 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:11:10,535 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:11:10,535 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:11:10,535 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:11:10,535 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:11:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 14:11:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-24 14:11:10,600 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:10,601 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, 1, 1, 1, 1, 1] [2018-07-24 14:11:10,602 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 14:11:10,606 INFO L82 PathProgramCache]: Analyzing trace with hash 110181956, now seen corresponding path program 1 times [2018-07-24 14:11:10,609 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:10,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:10,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:10,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:10,657 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:11,096 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 14:11:11,098 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:11,099 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:11:11,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:11,105 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:11:11,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:11:11,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:11:11,123 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-07-24 14:11:28,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:28,300 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-07-24 14:11:28,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:11:28,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-07-24 14:11:28,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:28,350 INFO L225 Difference]: With dead ends: 3234 [2018-07-24 14:11:28,351 INFO L226 Difference]: Without dead ends: 2388 [2018-07-24 14:11:28,361 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:11:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-07-24 14:11:28,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-07-24 14:11:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-07-24 14:11:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3845 transitions. [2018-07-24 14:11:28,573 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3845 transitions. Word has length 62 [2018-07-24 14:11:28,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:28,574 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 3845 transitions. [2018-07-24 14:11:28,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:11:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3845 transitions. [2018-07-24 14:11:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-24 14:11:28,591 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:28,591 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, 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] [2018-07-24 14:11:28,592 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 14:11:28,592 INFO L82 PathProgramCache]: Analyzing trace with hash 593891205, now seen corresponding path program 1 times [2018-07-24 14:11:28,592 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:28,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:28,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:28,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:28,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:28,901 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:28,901 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:11:28,902 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:28,905 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:11:28,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:11:28,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:11:28,907 INFO L87 Difference]: Start difference. First operand 2388 states and 3845 transitions. Second operand 5 states. [2018-07-24 14:11:44,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:44,537 INFO L93 Difference]: Finished difference Result 7257 states and 11779 transitions. [2018-07-24 14:11:44,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:11:44,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-07-24 14:11:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:44,569 INFO L225 Difference]: With dead ends: 7257 [2018-07-24 14:11:44,569 INFO L226 Difference]: Without dead ends: 4875 [2018-07-24 14:11:44,577 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4875 states. [2018-07-24 14:11:44,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4875 to 4829. [2018-07-24 14:11:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4829 states. [2018-07-24 14:11:44,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 7152 transitions. [2018-07-24 14:11:44,734 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 7152 transitions. Word has length 143 [2018-07-24 14:11:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:44,735 INFO L471 AbstractCegarLoop]: Abstraction has 4829 states and 7152 transitions. [2018-07-24 14:11:44,735 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:11:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 7152 transitions. [2018-07-24 14:11:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-24 14:11:44,744 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:44,745 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, 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] [2018-07-24 14:11:44,745 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 14:11:44,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1512602458, now seen corresponding path program 1 times [2018-07-24 14:11:44,745 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:44,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:44,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:44,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:44,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:45,281 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:45,281 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:11:45,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:45,282 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:11:45,282 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:11:45,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:45,283 INFO L87 Difference]: Start difference. First operand 4829 states and 7152 transitions. Second operand 6 states. [2018-07-24 14:11:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:11:54,112 INFO L93 Difference]: Finished difference Result 14640 states and 22370 transitions. [2018-07-24 14:11:54,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:11:54,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-07-24 14:11:54,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:11:54,164 INFO L225 Difference]: With dead ends: 14640 [2018-07-24 14:11:54,164 INFO L226 Difference]: Without dead ends: 9817 [2018-07-24 14:11:54,179 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:11:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2018-07-24 14:11:54,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 9687. [2018-07-24 14:11:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9687 states. [2018-07-24 14:11:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14172 transitions. [2018-07-24 14:11:54,459 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14172 transitions. Word has length 176 [2018-07-24 14:11:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:11:54,460 INFO L471 AbstractCegarLoop]: Abstraction has 9687 states and 14172 transitions. [2018-07-24 14:11:54,462 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:11:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14172 transitions. [2018-07-24 14:11:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-24 14:11:54,471 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:11:54,472 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, 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] [2018-07-24 14:11:54,472 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 14:11:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1591072275, now seen corresponding path program 1 times [2018-07-24 14:11:54,472 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:11:54,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:54,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:11:54,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:11:54,474 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:11:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:11:54,784 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:11:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:11:55,182 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:11:55,182 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:11:55,182 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:11:55,183 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:11:55,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:11:55,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:11:55,184 INFO L87 Difference]: Start difference. First operand 9687 states and 14172 transitions. Second operand 6 states. [2018-07-24 14:12:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:04,011 INFO L93 Difference]: Finished difference Result 24374 states and 36307 transitions. [2018-07-24 14:12:04,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:12:04,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-07-24 14:12:04,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:04,083 INFO L225 Difference]: With dead ends: 24374 [2018-07-24 14:12:04,083 INFO L226 Difference]: Without dead ends: 14693 [2018-07-24 14:12:04,112 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:12:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14693 states. [2018-07-24 14:12:04,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14693 to 14591. [2018-07-24 14:12:04,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14591 states. [2018-07-24 14:12:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 20123 transitions. [2018-07-24 14:12:04,477 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 20123 transitions. Word has length 187 [2018-07-24 14:12:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:04,477 INFO L471 AbstractCegarLoop]: Abstraction has 14591 states and 20123 transitions. [2018-07-24 14:12:04,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:12:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 20123 transitions. [2018-07-24 14:12:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-07-24 14:12:04,483 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:04,483 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, 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] [2018-07-24 14:12:04,484 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 14:12:04,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1948859197, now seen corresponding path program 1 times [2018-07-24 14:12:04,484 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:04,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:04,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:04,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:04,485 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:12:04,777 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:12:04,777 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:12:04,778 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:04,778 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:12:04,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:12:04,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:12:04,779 INFO L87 Difference]: Start difference. First operand 14591 states and 20123 transitions. Second operand 4 states. [2018-07-24 14:12:13,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:13,561 INFO L93 Difference]: Finished difference Result 56501 states and 82178 transitions. [2018-07-24 14:12:13,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:12:13,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-07-24 14:12:13,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:13,733 INFO L225 Difference]: With dead ends: 56501 [2018-07-24 14:12:13,734 INFO L226 Difference]: Without dead ends: 41916 [2018-07-24 14:12:13,806 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:12:13,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41916 states. [2018-07-24 14:12:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41916 to 41916. [2018-07-24 14:12:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41916 states. [2018-07-24 14:12:14,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41916 states to 41916 states and 55820 transitions. [2018-07-24 14:12:14,681 INFO L78 Accepts]: Start accepts. Automaton has 41916 states and 55820 transitions. Word has length 211 [2018-07-24 14:12:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:14,682 INFO L471 AbstractCegarLoop]: Abstraction has 41916 states and 55820 transitions. [2018-07-24 14:12:14,682 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:12:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 41916 states and 55820 transitions. [2018-07-24 14:12:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-24 14:12:14,690 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:14,690 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, 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] [2018-07-24 14:12:14,690 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 14:12:14,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1423554002, now seen corresponding path program 1 times [2018-07-24 14:12:14,691 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:14,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:14,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:14,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:14,692 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:15,036 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:12:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 14:12:15,296 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:15,297 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) [2018-07-24 14:12:15,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:15,317 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:12:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:15,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:12:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:12:15,623 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:12:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:12:15,974 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:12:15,974 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-07-24 14:12:15,974 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:15,975 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:12:15,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:12:15,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:12:15,978 INFO L87 Difference]: Start difference. First operand 41916 states and 55820 transitions. Second operand 3 states. [2018-07-24 14:12:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:23,311 INFO L93 Difference]: Finished difference Result 97807 states and 131876 transitions. [2018-07-24 14:12:23,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:12:23,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-07-24 14:12:23,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:23,574 INFO L225 Difference]: With dead ends: 97807 [2018-07-24 14:12:23,574 INFO L226 Difference]: Without dead ends: 55897 [2018-07-24 14:12:23,785 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:12:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55897 states. [2018-07-24 14:12:25,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55897 to 55897. [2018-07-24 14:12:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55897 states. [2018-07-24 14:12:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55897 states to 55897 states and 71766 transitions. [2018-07-24 14:12:25,367 INFO L78 Accepts]: Start accepts. Automaton has 55897 states and 71766 transitions. Word has length 212 [2018-07-24 14:12:25,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:25,369 INFO L471 AbstractCegarLoop]: Abstraction has 55897 states and 71766 transitions. [2018-07-24 14:12:25,369 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:12:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 55897 states and 71766 transitions. [2018-07-24 14:12:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-07-24 14:12:25,442 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:25,442 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:25,443 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 14:12:25,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1500455827, now seen corresponding path program 1 times [2018-07-24 14:12:25,448 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:25,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:25,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:25,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:25,451 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-07-24 14:12:26,316 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:12:26,316 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:12:26,316 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:26,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:12:26,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:12:26,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:12:26,318 INFO L87 Difference]: Start difference. First operand 55897 states and 71766 transitions. Second operand 4 states. [2018-07-24 14:12:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:12:38,750 INFO L93 Difference]: Finished difference Result 203864 states and 277116 transitions. [2018-07-24 14:12:38,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:12:38,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 389 [2018-07-24 14:12:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:12:39,264 INFO L225 Difference]: With dead ends: 203864 [2018-07-24 14:12:39,265 INFO L226 Difference]: Without dead ends: 147973 [2018-07-24 14:12:39,466 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:12:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147973 states. [2018-07-24 14:12:41,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147973 to 147973. [2018-07-24 14:12:41,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147973 states. [2018-07-24 14:12:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147973 states to 147973 states and 193954 transitions. [2018-07-24 14:12:43,371 INFO L78 Accepts]: Start accepts. Automaton has 147973 states and 193954 transitions. Word has length 389 [2018-07-24 14:12:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:12:43,372 INFO L471 AbstractCegarLoop]: Abstraction has 147973 states and 193954 transitions. [2018-07-24 14:12:43,372 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:12:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 147973 states and 193954 transitions. [2018-07-24 14:12:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2018-07-24 14:12:43,751 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:12:43,752 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:12:43,752 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 14:12:43,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1092123077, now seen corresponding path program 1 times [2018-07-24 14:12:43,753 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:12:43,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:43,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:43,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:12:43,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:12:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:12:44,564 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:44,565 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 14:12:44,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:44,576 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:12:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:44,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:12:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:12:45,087 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:12:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:12:46,627 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:12:46,627 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 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:12:46,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:12:46,643 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:12:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:12:47,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:12:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 167 proven. 4 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-24 14:12:47,598 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:12:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-24 14:12:49,275 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:12:49,276 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5, 5] total 12 [2018-07-24 14:12:49,276 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:12:49,276 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:12:49,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:12:49,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:12:49,277 INFO L87 Difference]: Start difference. First operand 147973 states and 193954 transitions. Second operand 5 states. [2018-07-24 14:13:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:13:00,293 INFO L93 Difference]: Finished difference Result 312299 states and 413606 transitions. [2018-07-24 14:13:00,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:13:00,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 667 [2018-07-24 14:13:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:13:00,885 INFO L225 Difference]: With dead ends: 312299 [2018-07-24 14:13:00,885 INFO L226 Difference]: Without dead ends: 165100 [2018-07-24 14:13:01,188 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2674 GetRequests, 2658 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:13:01,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165100 states. [2018-07-24 14:13:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165100 to 165088. [2018-07-24 14:13:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165088 states. [2018-07-24 14:13:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165088 states to 165088 states and 212708 transitions. [2018-07-24 14:13:05,382 INFO L78 Accepts]: Start accepts. Automaton has 165088 states and 212708 transitions. Word has length 667 [2018-07-24 14:13:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:13:05,383 INFO L471 AbstractCegarLoop]: Abstraction has 165088 states and 212708 transitions. [2018-07-24 14:13:05,383 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:13:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 165088 states and 212708 transitions. [2018-07-24 14:13:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2018-07-24 14:13:05,679 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:13:05,680 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:13:05,680 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 14:13:05,681 INFO L82 PathProgramCache]: Analyzing trace with hash 494995970, now seen corresponding path program 1 times [2018-07-24 14:13:05,681 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:13:05,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:13:05,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:05,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:13:05,682 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:13:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:06,085 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:13:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 171 proven. 362 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:13:06,337 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:13:06,338 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:13:06,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:06,347 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:06,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-07-24 14:13:07,531 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 318 proven. 154 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-07-24 14:13:07,992 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:13:07,992 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:13:08,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:08,009 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:08,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 415 proven. 2 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2018-07-24 14:13:09,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 173 proven. 295 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-07-24 14:13:09,994 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:13:09,994 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 14:13:09,994 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:13:09,996 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:13:09,996 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:13:09,996 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:13:09,996 INFO L87 Difference]: Start difference. First operand 165088 states and 212708 transitions. Second operand 9 states. [2018-07-24 14:13:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:13:22,735 INFO L93 Difference]: Finished difference Result 364628 states and 473707 transitions. [2018-07-24 14:13:22,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 14:13:22,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 704 [2018-07-24 14:13:22,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:13:23,333 INFO L225 Difference]: With dead ends: 364628 [2018-07-24 14:13:23,333 INFO L226 Difference]: Without dead ends: 200314 [2018-07-24 14:13:23,610 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2837 GetRequests, 2813 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2018-07-24 14:13:23,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200314 states. [2018-07-24 14:13:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200314 to 200164. [2018-07-24 14:13:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200164 states. [2018-07-24 14:13:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200164 states to 200164 states and 241916 transitions. [2018-07-24 14:13:31,810 INFO L78 Accepts]: Start accepts. Automaton has 200164 states and 241916 transitions. Word has length 704 [2018-07-24 14:13:31,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:13:31,811 INFO L471 AbstractCegarLoop]: Abstraction has 200164 states and 241916 transitions. [2018-07-24 14:13:31,811 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:13:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 200164 states and 241916 transitions. [2018-07-24 14:13:32,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2018-07-24 14:13:32,089 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:13:32,090 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:32,090 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 14:13:32,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1494733110, now seen corresponding path program 1 times [2018-07-24 14:13:32,091 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:13:32,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:13:32,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:32,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:13:32,092 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:13:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 466 proven. 198 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-07-24 14:13:33,460 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:13:33,460 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:13:33,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:33,468 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:33,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 715 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-07-24 14:13:34,631 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 471 proven. 109 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-07-24 14:13:36,133 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:13:36,133 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:13:36,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:13:36,148 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:13:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:13:36,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:13:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 710 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-07-24 14:13:37,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:13:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 468 proven. 196 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-07-24 14:13:38,012 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:13:38,013 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 14:13:38,013 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:13:38,016 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:13:38,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:13:38,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:13:38,017 INFO L87 Difference]: Start difference. First operand 200164 states and 241916 transitions. Second operand 9 states. [2018-07-24 14:14:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:14:00,002 INFO L93 Difference]: Finished difference Result 421029 states and 520653 transitions. [2018-07-24 14:14:00,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 14:14:00,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 784 [2018-07-24 14:14:00,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:14:00,907 INFO L225 Difference]: With dead ends: 421029 [2018-07-24 14:14:00,907 INFO L226 Difference]: Without dead ends: 221639 [2018-07-24 14:14:01,484 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3156 GetRequests, 3133 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:14:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221639 states. [2018-07-24 14:14:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221639 to 220868. [2018-07-24 14:14:04,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220868 states. [2018-07-24 14:14:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220868 states to 220868 states and 261110 transitions. [2018-07-24 14:14:06,324 INFO L78 Accepts]: Start accepts. Automaton has 220868 states and 261110 transitions. Word has length 784 [2018-07-24 14:14:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:14:06,325 INFO L471 AbstractCegarLoop]: Abstraction has 220868 states and 261110 transitions. [2018-07-24 14:14:06,325 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:14:06,325 INFO L276 IsEmpty]: Start isEmpty. Operand 220868 states and 261110 transitions. [2018-07-24 14:14:06,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2018-07-24 14:14:06,538 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:06,539 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:06,539 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 14:14:06,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1217344223, now seen corresponding path program 1 times [2018-07-24 14:14:06,539 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:06,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:06,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:06,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:06,541 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2018-07-24 14:14:07,336 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:14:07,337 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:14:07,337 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:14:07,338 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:14:07,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:14:07,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:14:07,338 INFO L87 Difference]: Start difference. First operand 220868 states and 261110 transitions. Second operand 4 states. [2018-07-24 14:14:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:14:20,911 INFO L93 Difference]: Finished difference Result 531285 states and 639852 transitions. [2018-07-24 14:14:20,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:14:20,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 785 [2018-07-24 14:14:20,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:14:20,914 INFO L225 Difference]: With dead ends: 531285 [2018-07-24 14:14:20,914 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 14:14:22,192 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:14:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 14:14:22,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 14:14:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 14:14:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 14:14:22,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 785 [2018-07-24 14:14:22,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:14:22,195 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 14:14:22,195 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:14:22,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 14:14:22,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 14:14:22,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 14:14:23,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:23,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:24,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:25,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:26,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:26,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:26,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:26,350 WARN L169 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 665 DAG size of output: 184 [2018-07-24 14:14:27,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:27,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:14:28,758 WARN L169 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 665 DAG size of output: 184 Received shutdown request... [2018-07-24 14:14:28,978 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 14:14:28,979 INFO L168 Benchmark]: Toolchain (without parser) took 214667.05 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2018-07-24 14:14:28,981 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:14:28,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2483.00 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: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:28,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 242.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:28,983 INFO L168 Benchmark]: Boogie Preprocessor took 964.81 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 921.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:28,984 INFO L168 Benchmark]: RCFGBuilder took 12435.15 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 157.3 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -147.3 MB). Peak memory consumption was 729.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:14:28,984 INFO L168 Benchmark]: TraceAbstraction took 198536.00 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -594.6 kB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-07-24 14:14:28,990 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2483.00 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: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 242.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 964.81 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 921.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12435.15 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 157.3 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -147.3 MB). Peak memory consumption was 729.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198536.00 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -594.6 kB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label29_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-14-29-008.csv Completed graceful shutdown