java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 20:32:47,059 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 20:32:47,061 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 20:32:47,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 20:32:47,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 20:32:47,075 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 20:32:47,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 20:32:47,084 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 20:32:47,087 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 20:32:47,088 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 20:32:47,089 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 20:32:47,089 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 20:32:47,090 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 20:32:47,091 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 20:32:47,092 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 20:32:47,093 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 20:32:47,094 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 20:32:47,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 20:32:47,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 20:32:47,107 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 20:32:47,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 20:32:47,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 20:32:47,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 20:32:47,112 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 20:32:47,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 20:32:47,113 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 20:32:47,114 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 20:32:47,115 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 20:32:47,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 20:32:47,117 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 20:32:47,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 20:32:47,117 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 20:32:47,118 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 20:32:47,118 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 20:32:47,119 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 20:32:47,120 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 20:32:47,120 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 20:32:47,149 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 20:32:47,150 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 20:32:47,150 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 20:32:47,151 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 20:32:47,151 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 20:32:47,151 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 20:32:47,151 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 20:32:47,151 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 20:32:47,152 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 20:32:47,152 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 20:32:47,152 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 20:32:47,152 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 20:32:47,154 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 20:32:47,154 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 20:32:47,154 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 20:32:47,154 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 20:32:47,155 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 20:32:47,155 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 20:32:47,155 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 20:32:47,155 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 20:32:47,155 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 20:32:47,155 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 20:32:47,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 20:32:47,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 20:32:47,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:32:47,156 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 20:32:47,156 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 20:32:47,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 20:32:47,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 20:32:47,158 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 20:32:47,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 20:32:47,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 20:32:47,159 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 20:32:47,159 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 20:32:47,159 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 20:32:47,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 20:32:47,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 20:32:47,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 20:32:47,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 20:32:47,233 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 20:32:47,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c [2018-07-21 20:32:47,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6acb52089/4c96b38c7afb49cca830bdd22eea7713/FLAGb28dbcb27 [2018-07-21 20:32:48,099 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 20:32:48,100 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c [2018-07-21 20:32:48,153 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6acb52089/4c96b38c7afb49cca830bdd22eea7713/FLAGb28dbcb27 [2018-07-21 20:32:48,173 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6acb52089/4c96b38c7afb49cca830bdd22eea7713 [2018-07-21 20:32:48,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 20:32:48,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 20:32:48,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 20:32:48,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 20:32:48,200 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 20:32:48,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:32:48" (1/1) ... [2018-07-21 20:32:48,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690e9663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:48, skipping insertion in model container [2018-07-21 20:32:48,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:32:48" (1/1) ... [2018-07-21 20:32:48,551 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 20:32:49,459 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:32:49,488 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 20:32:50,256 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:32:50,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50 WrapperNode [2018-07-21 20:32:50,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 20:32:50,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 20:32:50,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 20:32:50,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 20:32:50,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:50,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:50,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 20:32:50,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 20:32:50,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 20:32:50,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 20:32:50,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:50,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:50,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:50,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:51,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:51,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:51,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... [2018-07-21 20:32:51,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 20:32:51,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 20:32:51,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 20:32:51,365 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 20:32:51,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:32:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 20:32:51,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 20:32:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 20:32:51,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 20:32:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 20:32:51,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 20:32:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 20:32:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 20:32:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:32:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:32:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:32:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:33:01,215 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 20:33:01,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:33:01 BoogieIcfgContainer [2018-07-21 20:33:01,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 20:33:01,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 20:33:01,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 20:33:01,221 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 20:33:01,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:32:48" (1/3) ... [2018-07-21 20:33:01,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e91b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:33:01, skipping insertion in model container [2018-07-21 20:33:01,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:32:50" (2/3) ... [2018-07-21 20:33:01,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e91b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:33:01, skipping insertion in model container [2018-07-21 20:33:01,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:33:01" (3/3) ... [2018-07-21 20:33:01,225 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label40_true-unreach-call.c [2018-07-21 20:33:01,235 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 20:33:01,244 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 20:33:01,304 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 20:33:01,305 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 20:33:01,305 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 20:33:01,305 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 20:33:01,305 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 20:33:01,306 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 20:33:01,306 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 20:33:01,306 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 20:33:01,306 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 20:33:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-21 20:33:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-21 20:33:01,372 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:33:01,373 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:33:01,373 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:33:01,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1880280655, now seen corresponding path program 1 times [2018-07-21 20:33:01,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:33:01,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:01,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:33:01,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:01,426 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:33:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:33:01,849 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 20:33:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:33:01,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:33:01,963 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 20:33:01,964 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:33:01,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 20:33:01,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 20:33:01,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 20:33:01,987 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-21 20:33:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:33:07,218 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-21 20:33:07,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 20:33:07,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-07-21 20:33:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:33:07,250 INFO L225 Difference]: With dead ends: 2251 [2018-07-21 20:33:07,251 INFO L226 Difference]: Without dead ends: 1474 [2018-07-21 20:33:07,260 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 20:33:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-21 20:33:07,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-21 20:33:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-21 20:33:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-07-21 20:33:07,433 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 51 [2018-07-21 20:33:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:33:07,436 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-07-21 20:33:07,436 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 20:33:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-07-21 20:33:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-21 20:33:07,446 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:33:07,447 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:33:07,447 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:33:07,448 INFO L82 PathProgramCache]: Analyzing trace with hash -55974543, now seen corresponding path program 1 times [2018-07-21 20:33:07,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:33:07,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:07,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:33:07,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:07,449 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:33:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:33:07,822 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 20:33:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:33:07,880 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:33:07,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:33:07,880 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:33:07,882 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:33:07,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:33:07,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:33:07,884 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-07-21 20:33:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:33:16,951 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-07-21 20:33:16,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:33:16,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-07-21 20:33:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:33:16,977 INFO L225 Difference]: With dead ends: 4419 [2018-07-21 20:33:16,978 INFO L226 Difference]: Without dead ends: 2951 [2018-07-21 20:33:16,983 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:33:16,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-07-21 20:33:17,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-07-21 20:33:17,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-07-21 20:33:17,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-07-21 20:33:17,130 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 140 [2018-07-21 20:33:17,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:33:17,131 INFO L471 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-07-21 20:33:17,131 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:33:17,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-07-21 20:33:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-21 20:33:17,139 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:33:17,139 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:33:17,139 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:33:17,140 INFO L82 PathProgramCache]: Analyzing trace with hash 510726916, now seen corresponding path program 1 times [2018-07-21 20:33:17,140 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:33:17,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:17,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:33:17,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:17,141 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:33:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:33:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:33:17,497 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:33:17,498 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:33:17,498 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:33:17,499 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:33:17,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:33:17,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:33:17,499 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-07-21 20:33:22,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:33:22,207 INFO L93 Difference]: Finished difference Result 6669 states and 11522 transitions. [2018-07-21 20:33:22,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:33:22,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-07-21 20:33:22,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:33:22,230 INFO L225 Difference]: With dead ends: 6669 [2018-07-21 20:33:22,230 INFO L226 Difference]: Without dead ends: 3747 [2018-07-21 20:33:22,241 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:33:22,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2018-07-21 20:33:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3689. [2018-07-21 20:33:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3689 states. [2018-07-21 20:33:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5891 transitions. [2018-07-21 20:33:22,386 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5891 transitions. Word has length 187 [2018-07-21 20:33:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:33:22,386 INFO L471 AbstractCegarLoop]: Abstraction has 3689 states and 5891 transitions. [2018-07-21 20:33:22,387 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:33:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5891 transitions. [2018-07-21 20:33:22,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-21 20:33:22,396 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:33:22,397 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:33:22,397 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:33:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2030668632, now seen corresponding path program 1 times [2018-07-21 20:33:22,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:33:22,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:22,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:33:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:22,399 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:33:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:33:22,680 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:33:22,680 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:33:22,680 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:33:22,680 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:33:22,683 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:33:22,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:33:22,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:33:22,684 INFO L87 Difference]: Start difference. First operand 3689 states and 5891 transitions. Second operand 6 states. [2018-07-21 20:33:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:33:26,517 INFO L93 Difference]: Finished difference Result 9623 states and 15373 transitions. [2018-07-21 20:33:26,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:33:26,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-07-21 20:33:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:33:26,543 INFO L225 Difference]: With dead ends: 9623 [2018-07-21 20:33:26,544 INFO L226 Difference]: Without dead ends: 5940 [2018-07-21 20:33:26,558 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:33:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2018-07-21 20:33:26,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5889. [2018-07-21 20:33:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5889 states. [2018-07-21 20:33:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 8064 transitions. [2018-07-21 20:33:26,742 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 8064 transitions. Word has length 189 [2018-07-21 20:33:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:33:26,743 INFO L471 AbstractCegarLoop]: Abstraction has 5889 states and 8064 transitions. [2018-07-21 20:33:26,743 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:33:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 8064 transitions. [2018-07-21 20:33:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-21 20:33:26,750 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:33:26,750 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:33:26,751 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:33:26,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1605606155, now seen corresponding path program 1 times [2018-07-21 20:33:26,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:33:26,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:26,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:33:26,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:26,752 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:33:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:33:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-21 20:33:27,060 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:33:27,060 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:33:27,060 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:33:27,061 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:33:27,061 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:33:27,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:33:27,061 INFO L87 Difference]: Start difference. First operand 5889 states and 8064 transitions. Second operand 4 states. [2018-07-21 20:33:33,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:33:33,803 INFO L93 Difference]: Finished difference Result 22501 states and 31632 transitions. [2018-07-21 20:33:33,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:33:33,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 247 [2018-07-21 20:33:33,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:33:33,863 INFO L225 Difference]: With dead ends: 22501 [2018-07-21 20:33:33,863 INFO L226 Difference]: Without dead ends: 16618 [2018-07-21 20:33:33,898 INFO L578 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 [2018-07-21 20:33:33,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16618 states. [2018-07-21 20:33:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16618 to 16618. [2018-07-21 20:33:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16618 states. [2018-07-21 20:33:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16618 states to 16618 states and 21854 transitions. [2018-07-21 20:33:34,418 INFO L78 Accepts]: Start accepts. Automaton has 16618 states and 21854 transitions. Word has length 247 [2018-07-21 20:33:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:33:34,419 INFO L471 AbstractCegarLoop]: Abstraction has 16618 states and 21854 transitions. [2018-07-21 20:33:34,419 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:33:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 16618 states and 21854 transitions. [2018-07-21 20:33:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-07-21 20:33:34,436 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:33:34,436 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:33:34,437 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:33:34,437 INFO L82 PathProgramCache]: Analyzing trace with hash 2100200355, now seen corresponding path program 1 times [2018-07-21 20:33:34,437 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:33:34,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:34,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:33:34,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:33:34,441 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:33:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:33:34,872 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 148 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 20:33:34,874 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:33:34,874 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:33:34,875 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 292 with the following transitions: [2018-07-21 20:33:34,878 INFO L201 CegarAbsIntRunner]: [0], [1], [743], [747], [753], [757], [759], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1955], [1957], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2288], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2392], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-21 20:33:34,974 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:33:34,974 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:33:51,130 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 20:33:51,491 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 20:33:51,492 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 20:33:51,512 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 20:34:03,424 INFO L232 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 77.87% of their original sizes. [2018-07-21 20:34:03,424 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 20:34:04,146 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 20:34:04,147 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 20:34:04,147 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-07-21 20:34:04,147 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:34:04,148 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 20:34:04,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 20:34:04,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 20:34:04,149 INFO L87 Difference]: Start difference. First operand 16618 states and 21854 transitions. Second operand 7 states. Received shutdown request... [2018-07-21 20:36:08,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:36:08,658 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 20:36:08,663 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 20:36:08,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:36:08 BoogieIcfgContainer [2018-07-21 20:36:08,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 20:36:08,664 INFO L168 Benchmark]: Toolchain (without parser) took 200478.49 ms. Allocated memory was 308.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 242.9 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 922.8 MB. Max. memory is 5.3 GB. [2018-07-21 20:36:08,665 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 308.8 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 20:36:08,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2241.52 ms. Allocated memory was 308.8 MB in the beginning and 335.5 MB in the end (delta: 26.7 MB). Free memory was 242.9 MB in the beginning and 179.3 MB in the end (delta: 63.6 MB). Peak memory consumption was 90.4 MB. Max. memory is 5.3 GB. [2018-07-21 20:36:08,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.20 ms. Allocated memory was 335.5 MB in the beginning and 393.2 MB in the end (delta: 57.7 MB). Free memory was 179.3 MB in the beginning and 322.9 MB in the end (delta: -143.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. [2018-07-21 20:36:08,669 INFO L168 Benchmark]: Boogie Preprocessor took 637.41 ms. Allocated memory was 393.2 MB in the beginning and 525.9 MB in the end (delta: 132.6 MB). Free memory was 322.9 MB in the beginning and 451.6 MB in the end (delta: -128.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 5.3 GB. [2018-07-21 20:36:08,669 INFO L168 Benchmark]: RCFGBuilder took 9851.42 ms. Allocated memory was 525.9 MB in the beginning and 642.8 MB in the end (delta: 116.9 MB). Free memory was 451.6 MB in the beginning and 403.6 MB in the end (delta: 48.1 MB). Peak memory consumption was 202.8 MB. Max. memory is 5.3 GB. [2018-07-21 20:36:08,670 INFO L168 Benchmark]: TraceAbstraction took 187446.37 ms. Allocated memory was 642.8 MB in the beginning and 2.5 GB in the end (delta: 1.9 GB). Free memory was 403.6 MB in the beginning and 1.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 749.4 MB. Max. memory is 5.3 GB. [2018-07-21 20:36:08,679 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 308.8 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2241.52 ms. Allocated memory was 308.8 MB in the beginning and 335.5 MB in the end (delta: 26.7 MB). Free memory was 242.9 MB in the beginning and 179.3 MB in the end (delta: 63.6 MB). Peak memory consumption was 90.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 292.20 ms. Allocated memory was 335.5 MB in the beginning and 393.2 MB in the end (delta: 57.7 MB). Free memory was 179.3 MB in the beginning and 322.9 MB in the end (delta: -143.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 637.41 ms. Allocated memory was 393.2 MB in the beginning and 525.9 MB in the end (delta: 132.6 MB). Free memory was 322.9 MB in the beginning and 451.6 MB in the end (delta: -128.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 9851.42 ms. Allocated memory was 525.9 MB in the beginning and 642.8 MB in the end (delta: 116.9 MB). Free memory was 451.6 MB in the beginning and 403.6 MB in the end (delta: 48.1 MB). Peak memory consumption was 202.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 187446.37 ms. Allocated memory was 642.8 MB in the beginning and 2.5 GB in the end (delta: 1.9 GB). Free memory was 403.6 MB in the beginning and 1.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 749.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (16618states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (21356 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 187.3s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 154.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1986 SDtfs, 11347 SDslu, 903 SDs, 0 SdLazy, 20444 SolverSat, 6038 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 331 GetRequests, 296 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16618occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9965204897551224 AbsIntWeakeningRatio, 0.0896551724137931 AbsIntAvgWeakeningVarsNumRemoved, 27.47241379310345 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 132 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1105 NumberOfCodeBlocks, 1105 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1099 ConstructedInterpolants, 0 QuantifiedInterpolants, 661578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 462/504 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label40_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_20-36-08-692.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label40_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_20-36-08-692.csv Completed graceful shutdown