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/Problem19_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 21:16:37,923 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 21:16:37,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 21:16:37,941 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 21:16:37,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 21:16:37,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 21:16:37,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 21:16:37,947 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 21:16:37,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 21:16:37,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 21:16:37,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 21:16:37,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 21:16:37,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 21:16:37,955 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 21:16:37,956 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 21:16:37,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 21:16:37,957 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 21:16:37,970 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 21:16:37,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 21:16:37,973 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 21:16:37,974 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 21:16:37,975 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 21:16:37,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 21:16:37,981 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 21:16:37,981 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 21:16:37,982 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 21:16:37,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 21:16:37,984 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 21:16:37,985 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 21:16:37,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 21:16:37,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 21:16:37,989 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 21:16:37,989 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 21:16:37,989 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 21:16:37,990 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 21:16:37,990 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 21:16:37,993 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 21:16:38,017 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 21:16:38,017 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 21:16:38,018 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 21:16:38,018 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 21:16:38,018 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 21:16:38,018 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 21:16:38,018 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 21:16:38,019 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 21:16:38,019 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 21:16:38,019 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 21:16:38,019 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 21:16:38,019 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 21:16:38,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 21:16:38,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 21:16:38,023 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 21:16:38,023 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 21:16:38,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 21:16:38,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 21:16:38,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 21:16:38,024 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 21:16:38,024 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 21:16:38,025 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 21:16:38,025 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 21:16:38,025 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 21:16:38,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:16:38,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 21:16:38,025 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 21:16:38,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 21:16:38,028 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 21:16:38,028 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 21:16:38,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 21:16:38,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 21:16:38,028 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 21:16:38,029 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 21:16:38,029 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 21:16:38,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 21:16:38,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 21:16:38,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 21:16:38,108 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 21:16:38,108 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 21:16:38,109 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label36_true-unreach-call.c [2018-07-21 21:16:38,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4606a48/f701abfd16d84b3db721b1e682fb8d5a/FLAGc9d357706 [2018-07-21 21:16:39,131 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 21:16:39,132 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label36_true-unreach-call.c [2018-07-21 21:16:39,217 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4606a48/f701abfd16d84b3db721b1e682fb8d5a/FLAGc9d357706 [2018-07-21 21:16:39,237 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4606a48/f701abfd16d84b3db721b1e682fb8d5a [2018-07-21 21:16:39,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 21:16:39,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 21:16:39,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 21:16:39,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 21:16:39,270 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 21:16:39,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:16:39" (1/1) ... [2018-07-21 21:16:39,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8eb838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:39, skipping insertion in model container [2018-07-21 21:16:39,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:16:39" (1/1) ... [2018-07-21 21:16:39,807 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 21:16:41,896 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:16:41,912 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 21:16:43,385 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:16:43,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43 WrapperNode [2018-07-21 21:16:43,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 21:16:43,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 21:16:43,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 21:16:43,854 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 21:16:43,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:44,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:45,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 21:16:45,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 21:16:45,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 21:16:45,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 21:16:45,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:45,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:45,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:45,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:45,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:45,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:46,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (1/1) ... [2018-07-21 21:16:46,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 21:16:46,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 21:16:46,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 21:16:46,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 21:16:46,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (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 21:16:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-21 21:16:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-21 21:16:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 21:16:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 21:16:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 21:16:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 21:16:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 21:16:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 21:16:46,231 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 21:16:46,231 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 21:16:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 21:16:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 21:16:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 21:16:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 21:16:46,232 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 21:16:46,232 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 21:16:46,232 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 21:16:46,232 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 21:17:05,057 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 21:17:05,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:17:05 BoogieIcfgContainer [2018-07-21 21:17:05,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 21:17:05,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 21:17:05,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 21:17:05,065 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 21:17:05,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:16:39" (1/3) ... [2018-07-21 21:17:05,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369f3ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:17:05, skipping insertion in model container [2018-07-21 21:17:05,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:16:43" (2/3) ... [2018-07-21 21:17:05,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369f3ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:17:05, skipping insertion in model container [2018-07-21 21:17:05,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:17:05" (3/3) ... [2018-07-21 21:17:05,070 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label36_true-unreach-call.c [2018-07-21 21:17:05,083 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 21:17:05,097 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 21:17:05,179 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 21:17:05,180 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 21:17:05,180 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 21:17:05,180 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 21:17:05,180 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 21:17:05,180 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 21:17:05,181 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 21:17:05,181 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 21:17:05,181 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 21:17:05,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-21 21:17:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-21 21:17:05,260 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:17:05,262 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] [2018-07-21 21:17:05,262 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 21:17:05,268 INFO L82 PathProgramCache]: Analyzing trace with hash -2131879060, now seen corresponding path program 1 times [2018-07-21 21:17:05,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:17:05,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:17:05,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:17:05,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:17:05,330 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:17:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:17:05,711 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:17:05,817 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 21:17:05,819 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:17:05,820 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:17:05,820 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:17:05,824 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:17:05,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:17:05,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:17:05,843 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-21 21:17:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:17:23,329 INFO L93 Difference]: Finished difference Result 5042 states and 9509 transitions. [2018-07-21 21:17:23,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:17:23,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-07-21 21:17:23,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:17:23,408 INFO L225 Difference]: With dead ends: 5042 [2018-07-21 21:17:23,408 INFO L226 Difference]: Without dead ends: 3262 [2018-07-21 21:17:23,430 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 21:17:23,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2018-07-21 21:17:23,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3214. [2018-07-21 21:17:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3214 states. [2018-07-21 21:17:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5986 transitions. [2018-07-21 21:17:23,698 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5986 transitions. Word has length 40 [2018-07-21 21:17:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:17:23,699 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5986 transitions. [2018-07-21 21:17:23,699 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:17:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5986 transitions. [2018-07-21 21:17:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-21 21:17:23,711 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:17:23,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:23,712 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 21:17:23,712 INFO L82 PathProgramCache]: Analyzing trace with hash -2041862291, now seen corresponding path program 1 times [2018-07-21 21:17:23,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:17:23,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:17:23,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:17:23,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:17:23,718 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:17:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:17:24,157 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:17:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:17:24,561 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:17:24,561 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:17:24,561 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:17:24,564 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:17:24,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:17:24,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:17:24,565 INFO L87 Difference]: Start difference. First operand 3214 states and 5986 transitions. Second operand 6 states. [2018-07-21 21:17:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:17:51,362 INFO L93 Difference]: Finished difference Result 12121 states and 23105 transitions. [2018-07-21 21:17:51,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:17:51,363 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-07-21 21:17:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:17:51,434 INFO L225 Difference]: With dead ends: 12121 [2018-07-21 21:17:51,434 INFO L226 Difference]: Without dead ends: 8913 [2018-07-21 21:17:51,450 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:17:51,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8913 states. [2018-07-21 21:17:51,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8913 to 8850. [2018-07-21 21:17:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8850 states. [2018-07-21 21:17:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 14379 transitions. [2018-07-21 21:17:51,789 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 14379 transitions. Word has length 140 [2018-07-21 21:17:51,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:17:51,790 INFO L471 AbstractCegarLoop]: Abstraction has 8850 states and 14379 transitions. [2018-07-21 21:17:51,790 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:17:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 14379 transitions. [2018-07-21 21:17:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-21 21:17:51,796 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:17:51,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:51,796 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 21:17:51,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1314196311, now seen corresponding path program 1 times [2018-07-21 21:17:51,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:17:51,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:17:51,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:17:51,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:17:51,798 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:17:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:17:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:17:52,158 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:17:52,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 21:17:52,159 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:17:52,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 21:17:52,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 21:17:52,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 21:17:52,161 INFO L87 Difference]: Start difference. First operand 8850 states and 14379 transitions. Second operand 5 states. [2018-07-21 21:18:14,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:18:14,169 INFO L93 Difference]: Finished difference Result 26959 states and 44590 transitions. [2018-07-21 21:18:14,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:18:14,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2018-07-21 21:18:14,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:18:14,265 INFO L225 Difference]: With dead ends: 26959 [2018-07-21 21:18:14,266 INFO L226 Difference]: Without dead ends: 18115 [2018-07-21 21:18:14,295 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 21:18:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18115 states. [2018-07-21 21:18:14,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18115 to 17814. [2018-07-21 21:18:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17814 states. [2018-07-21 21:18:15,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17814 states to 17814 states and 25740 transitions. [2018-07-21 21:18:15,022 INFO L78 Accepts]: Start accepts. Automaton has 17814 states and 25740 transitions. Word has length 142 [2018-07-21 21:18:15,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:18:15,022 INFO L471 AbstractCegarLoop]: Abstraction has 17814 states and 25740 transitions. [2018-07-21 21:18:15,023 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 21:18:15,023 INFO L276 IsEmpty]: Start isEmpty. Operand 17814 states and 25740 transitions. [2018-07-21 21:18:15,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-21 21:18:15,026 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:18:15,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:18:15,027 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 21:18:15,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1049187943, now seen corresponding path program 1 times [2018-07-21 21:18:15,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:18:15,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:18:15,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:18:15,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:18:15,029 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:18:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:18:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:18:15,411 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:18:15,411 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 21:18:15,411 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:18:15,412 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 21:18:15,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 21:18:15,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 21:18:15,413 INFO L87 Difference]: Start difference. First operand 17814 states and 25740 transitions. Second operand 5 states. [2018-07-21 21:18:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:18:32,774 INFO L93 Difference]: Finished difference Result 53955 states and 79840 transitions. [2018-07-21 21:18:32,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:18:32,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2018-07-21 21:18:32,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:18:32,898 INFO L225 Difference]: With dead ends: 53955 [2018-07-21 21:18:32,898 INFO L226 Difference]: Without dead ends: 36147 [2018-07-21 21:18:32,951 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 21:18:32,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36147 states. [2018-07-21 21:18:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36147 to 35511. [2018-07-21 21:18:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35511 states. [2018-07-21 21:18:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35511 states to 35511 states and 49737 transitions. [2018-07-21 21:18:33,695 INFO L78 Accepts]: Start accepts. Automaton has 35511 states and 49737 transitions. Word has length 150 [2018-07-21 21:18:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:18:33,696 INFO L471 AbstractCegarLoop]: Abstraction has 35511 states and 49737 transitions. [2018-07-21 21:18:33,696 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 21:18:33,697 INFO L276 IsEmpty]: Start isEmpty. Operand 35511 states and 49737 transitions. [2018-07-21 21:18:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-07-21 21:18:33,704 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:18:33,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:18:33,704 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 21:18:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1411021234, now seen corresponding path program 1 times [2018-07-21 21:18:33,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:18:33,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:18:33,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:18:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:18:33,706 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:18:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:18:34,077 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:18:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:18:34,551 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:18:34,551 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:18:34,551 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:18:34,552 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:18:34,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:18:34,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:18:34,553 INFO L87 Difference]: Start difference. First operand 35511 states and 49737 transitions. Second operand 6 states. [2018-07-21 21:18:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:18:55,804 INFO L93 Difference]: Finished difference Result 98882 states and 144322 transitions. [2018-07-21 21:18:55,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:18:55,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 205 [2018-07-21 21:18:55,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:18:55,986 INFO L225 Difference]: With dead ends: 98882 [2018-07-21 21:18:55,986 INFO L226 Difference]: Without dead ends: 63377 [2018-07-21 21:18:56,050 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:18:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63377 states. [2018-07-21 21:18:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63377 to 62778. [2018-07-21 21:18:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62778 states. [2018-07-21 21:18:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62778 states to 62778 states and 88562 transitions. [2018-07-21 21:18:57,103 INFO L78 Accepts]: Start accepts. Automaton has 62778 states and 88562 transitions. Word has length 205 [2018-07-21 21:18:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:18:57,104 INFO L471 AbstractCegarLoop]: Abstraction has 62778 states and 88562 transitions. [2018-07-21 21:18:57,104 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:18:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 62778 states and 88562 transitions. [2018-07-21 21:18:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-07-21 21:18:57,109 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:18:57,110 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 21:18:57,110 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 21:18:57,110 INFO L82 PathProgramCache]: Analyzing trace with hash 886410942, now seen corresponding path program 1 times [2018-07-21 21:18:57,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:18:57,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:18:57,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:18:57,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:18:57,112 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:18:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:18:57,432 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:18:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 66 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 21:18:57,487 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:18:57,487 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 21:18:57,488 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-07-21 21:18:57,491 INFO L201 CegarAbsIntRunner]: [2006], [2007], [4199], [4203], [4209], [4213], [4215], [5251], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5470], [5472], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5723], [5731], [5739], [5751], [5755], [5766], [5770], [5774], [5778], [5782], [5786], [5790], [5794], [5798], [5802], [5806], [5810], [5821], [5832], [5843], [5847], [5851], [5862], [5865], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5913], [6826], [6833], [6834], [6835], [6837], [6838] [2018-07-21 21:18:57,576 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 21:18:57,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 21:19:13,292 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 21:19:13,293 INFO L272 AbstractInterpreter]: Visited 107 different actions 107 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 21:19:13,304 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 21:19:23,510 INFO L232 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 75.44% of their original sizes. [2018-07-21 21:19:23,513 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 21:19:24,165 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 21:19:24,166 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 21:19:24,167 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 21:19:24,167 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:19:24,167 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 21:19:24,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 21:19:24,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 21:19:24,168 INFO L87 Difference]: Start difference. First operand 62778 states and 88562 transitions. Second operand 7 states. [2018-07-21 21:19:52,831 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 21:20:06,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:20:06,662 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 21:20:06,668 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 21:20:06,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:20:06 BoogieIcfgContainer [2018-07-21 21:20:06,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 21:20:06,675 INFO L168 Benchmark]: Toolchain (without parser) took 207425.43 ms. Allocated memory was 309.9 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 230.0 MB in the beginning and 687.5 MB in the end (delta: -457.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-21 21:20:06,676 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:20:06,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4593.09 ms. Allocated memory was 309.9 MB in the beginning and 393.7 MB in the end (delta: 83.9 MB). Free memory was 229.0 MB in the beginning and 118.1 MB in the end (delta: 110.9 MB). Peak memory consumption was 217.3 MB. Max. memory is 5.3 GB. [2018-07-21 21:20:06,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 1494.24 ms. Allocated memory was 393.7 MB in the beginning and 679.0 MB in the end (delta: 285.2 MB). Free memory was 118.1 MB in the beginning and 520.6 MB in the end (delta: -402.6 MB). Peak memory consumption was 99.3 MB. Max. memory is 5.3 GB. [2018-07-21 21:20:06,678 INFO L168 Benchmark]: Boogie Preprocessor took 818.60 ms. Allocated memory is still 679.0 MB. Free memory was 520.6 MB in the beginning and 423.3 MB in the end (delta: 97.3 MB). Peak memory consumption was 97.3 MB. Max. memory is 5.3 GB. [2018-07-21 21:20:06,679 INFO L168 Benchmark]: RCFGBuilder took 18891.31 ms. Allocated memory was 679.0 MB in the beginning and 959.4 MB in the end (delta: 280.5 MB). Free memory was 423.3 MB in the beginning and 401.6 MB in the end (delta: 21.7 MB). Peak memory consumption was 359.7 MB. Max. memory is 5.3 GB. [2018-07-21 21:20:06,679 INFO L168 Benchmark]: TraceAbstraction took 181613.50 ms. Allocated memory was 959.4 MB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 401.6 MB in the beginning and 687.5 MB in the end (delta: -285.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-21 21:20:06,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4593.09 ms. Allocated memory was 309.9 MB in the beginning and 393.7 MB in the end (delta: 83.9 MB). Free memory was 229.0 MB in the beginning and 118.1 MB in the end (delta: 110.9 MB). Peak memory consumption was 217.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 1494.24 ms. Allocated memory was 393.7 MB in the beginning and 679.0 MB in the end (delta: 285.2 MB). Free memory was 118.1 MB in the beginning and 520.6 MB in the end (delta: -402.6 MB). Peak memory consumption was 99.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 818.60 ms. Allocated memory is still 679.0 MB. Free memory was 520.6 MB in the beginning and 423.3 MB in the end (delta: 97.3 MB). Peak memory consumption was 97.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 18891.31 ms. Allocated memory was 679.0 MB in the beginning and 959.4 MB in the end (delta: 280.5 MB). Free memory was 423.3 MB in the beginning and 401.6 MB in the end (delta: 21.7 MB). Peak memory consumption was 359.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 181613.50 ms. Allocated memory was 959.4 MB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 401.6 MB in the beginning and 687.5 MB in the end (delta: -285.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was constructing difference of abstraction (62778states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (1696 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 181.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 148.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2869 SDtfs, 30758 SDslu, 3356 SDs, 0 SdLazy, 46103 SolverSat, 14324 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 123.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 275 GetRequests, 238 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62778occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9958041958041957 AbsIntWeakeningRatio, 0.11688311688311688 AbsIntAvgWeakeningVarsNumRemoved, 41.073593073593074 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1647 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 909 NumberOfCodeBlocks, 909 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 607071 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 203/288 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/Problem19_label36_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_21-20-06-709.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label36_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_21-20-06-709.csv Completed graceful shutdown