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_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 21:20:10,138 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 21:20:10,140 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 21:20:10,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 21:20:10,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 21:20:10,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 21:20:10,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 21:20:10,160 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 21:20:10,162 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 21:20:10,162 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 21:20:10,163 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 21:20:10,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 21:20:10,164 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 21:20:10,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 21:20:10,166 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 21:20:10,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 21:20:10,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 21:20:10,170 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 21:20:10,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 21:20:10,183 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 21:20:10,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 21:20:10,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 21:20:10,187 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 21:20:10,188 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 21:20:10,188 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 21:20:10,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 21:20:10,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 21:20:10,195 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 21:20:10,195 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 21:20:10,196 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 21:20:10,197 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 21:20:10,197 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 21:20:10,197 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 21:20:10,198 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 21:20:10,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 21:20:10,199 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 21:20:10,199 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 21:20:10,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 21:20:10,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 21:20:10,223 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 21:20:10,223 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 21:20:10,224 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 21:20:10,224 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 21:20:10,224 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 21:20:10,224 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 21:20:10,224 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 21:20:10,225 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 21:20:10,225 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 21:20:10,225 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 21:20:10,226 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 21:20:10,226 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 21:20:10,226 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 21:20:10,226 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 21:20:10,226 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 21:20:10,226 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 21:20:10,227 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 21:20:10,228 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 21:20:10,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 21:20:10,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 21:20:10,228 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 21:20:10,228 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 21:20:10,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:20:10,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 21:20:10,229 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 21:20:10,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 21:20:10,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 21:20:10,230 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 21:20:10,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 21:20:10,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 21:20:10,230 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 21:20:10,230 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 21:20:10,230 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 21:20:10,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 21:20:10,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 21:20:10,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 21:20:10,304 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 21:20:10,304 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 21:20:10,304 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-07-21 21:20:10,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6109ff03c/bdab17f5acab4fd9a5cf96c96d3d84ab/FLAG61414e8ab [2018-07-21 21:20:11,371 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 21:20:11,372 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-07-21 21:20:11,440 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6109ff03c/bdab17f5acab4fd9a5cf96c96d3d84ab/FLAG61414e8ab [2018-07-21 21:20:11,461 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6109ff03c/bdab17f5acab4fd9a5cf96c96d3d84ab [2018-07-21 21:20:11,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 21:20:11,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 21:20:11,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 21:20:11,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 21:20:11,493 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 21:20:11,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:20:11" (1/1) ... [2018-07-21 21:20:11,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193a79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:11, skipping insertion in model container [2018-07-21 21:20:11,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:20:11" (1/1) ... [2018-07-21 21:20:12,022 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 21:20:13,985 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:20:14,007 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 21:20:15,331 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:20:16,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16 WrapperNode [2018-07-21 21:20:16,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 21:20:16,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 21:20:16,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 21:20:16,114 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 21:20:16,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:16,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:17,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 21:20:17,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 21:20:17,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 21:20:17,594 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 21:20:17,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:17,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:17,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:17,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:18,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:18,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:18,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (1/1) ... [2018-07-21 21:20:18,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 21:20:18,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 21:20:18,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 21:20:18,557 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 21:20:18,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (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 21:20:18,628 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 21:20:18,629 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 21:20:18,629 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 21:20:18,629 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 21:20:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 21:20:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 21:20:18,630 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 21:20:18,631 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 21:20:18,631 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 21:20:18,631 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 21:20:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 21:20:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 21:20:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 21:20:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 21:20:18,633 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 21:20:18,633 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 21:20:18,633 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 21:20:18,634 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 21:20:36,744 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 21:20:36,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:20:36 BoogieIcfgContainer [2018-07-21 21:20:36,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 21:20:36,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 21:20:36,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 21:20:36,750 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 21:20:36,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:20:11" (1/3) ... [2018-07-21 21:20:36,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d392fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:20:36, skipping insertion in model container [2018-07-21 21:20:36,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:20:16" (2/3) ... [2018-07-21 21:20:36,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d392fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:20:36, skipping insertion in model container [2018-07-21 21:20:36,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:20:36" (3/3) ... [2018-07-21 21:20:36,756 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label39_true-unreach-call.c [2018-07-21 21:20:36,764 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 21:20:36,773 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 21:20:36,845 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 21:20:36,846 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 21:20:36,846 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 21:20:36,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 21:20:36,846 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 21:20:36,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 21:20:36,847 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 21:20:36,847 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 21:20:36,848 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 21:20:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-21 21:20:36,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-21 21:20:36,911 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:20:36,912 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] [2018-07-21 21:20:36,912 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 21:20:36,918 INFO L82 PathProgramCache]: Analyzing trace with hash 24596900, now seen corresponding path program 1 times [2018-07-21 21:20:36,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:20:36,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:20:36,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:20:36,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:20:36,978 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:20:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:20:37,409 WARN L169 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:20:37,513 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 21:20:37,515 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:20:37,516 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:20:37,516 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:20:37,520 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:20:37,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:20:37,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:20:37,539 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-21 21:20:51,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:20:51,856 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-07-21 21:20:51,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:20:51,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-07-21 21:20:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:20:51,909 INFO L225 Difference]: With dead ends: 4998 [2018-07-21 21:20:51,909 INFO L226 Difference]: Without dead ends: 3218 [2018-07-21 21:20:51,928 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 21:20:51,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-07-21 21:20:52,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-07-21 21:20:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-07-21 21:20:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-07-21 21:20:52,182 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 38 [2018-07-21 21:20:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:20:52,182 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-07-21 21:20:52,183 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:20:52,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-07-21 21:20:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-21 21:20:52,195 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:20:52,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:52,196 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 21:20:52,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1447169689, now seen corresponding path program 1 times [2018-07-21 21:20:52,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:20:52,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:20:52,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:20:52,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:20:52,199 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:20:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:20:52,577 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:20:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:20:52,974 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:20:52,974 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:20:52,974 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:20:52,977 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:20:52,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:20:52,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:20:52,977 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-07-21 21:21:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:21:16,757 INFO L93 Difference]: Finished difference Result 9340 states and 16946 transitions. [2018-07-21 21:21:16,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:21:16,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-07-21 21:21:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:21:16,799 INFO L225 Difference]: With dead ends: 9340 [2018-07-21 21:21:16,799 INFO L226 Difference]: Without dead ends: 6131 [2018-07-21 21:21:16,811 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:21:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2018-07-21 21:21:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6091. [2018-07-21 21:21:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6091 states. [2018-07-21 21:21:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 9637 transitions. [2018-07-21 21:21:17,051 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 9637 transitions. Word has length 110 [2018-07-21 21:21:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:21:17,051 INFO L471 AbstractCegarLoop]: Abstraction has 6091 states and 9637 transitions. [2018-07-21 21:21:17,052 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:21:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 9637 transitions. [2018-07-21 21:21:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-21 21:21:17,063 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:21:17,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:17,066 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 21:21:17,067 INFO L82 PathProgramCache]: Analyzing trace with hash -2099974802, now seen corresponding path program 1 times [2018-07-21 21:21:17,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:21:17,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:21:17,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:21:17,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:21:17,068 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:21:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:21:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:21:17,407 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:21:17,407 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:21:17,407 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:21:17,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:21:17,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:21:17,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:21:17,409 INFO L87 Difference]: Start difference. First operand 6091 states and 9637 transitions. Second operand 6 states. [2018-07-21 21:21:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:21:41,745 INFO L93 Difference]: Finished difference Result 21088 states and 34222 transitions. [2018-07-21 21:21:41,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:21:41,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-07-21 21:21:41,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:21:41,840 INFO L225 Difference]: With dead ends: 21088 [2018-07-21 21:21:41,840 INFO L226 Difference]: Without dead ends: 15003 [2018-07-21 21:21:41,865 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 21:21:41,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15003 states. [2018-07-21 21:21:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15003 to 14814. [2018-07-21 21:21:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14814 states. [2018-07-21 21:21:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14814 states to 14814 states and 22420 transitions. [2018-07-21 21:21:42,362 INFO L78 Accepts]: Start accepts. Automaton has 14814 states and 22420 transitions. Word has length 112 [2018-07-21 21:21:42,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:21:42,362 INFO L471 AbstractCegarLoop]: Abstraction has 14814 states and 22420 transitions. [2018-07-21 21:21:42,363 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:21:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 14814 states and 22420 transitions. [2018-07-21 21:21:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-21 21:21:42,372 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:21:42,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:42,373 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 21:21:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1910468243, now seen corresponding path program 1 times [2018-07-21 21:21:42,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:21:42,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:21:42,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:21:42,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:21:42,375 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:21:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:21:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:21:42,928 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:21:42,928 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:21:42,928 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:21:42,929 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:21:42,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:21:42,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:21:42,930 INFO L87 Difference]: Start difference. First operand 14814 states and 22420 transitions. Second operand 6 states. [2018-07-21 21:22:15,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:22:15,967 INFO L93 Difference]: Finished difference Result 51543 states and 84151 transitions. [2018-07-21 21:22:15,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 21:22:15,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-07-21 21:22:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:22:16,149 INFO L225 Difference]: With dead ends: 51543 [2018-07-21 21:22:16,149 INFO L226 Difference]: Without dead ends: 36735 [2018-07-21 21:22:16,195 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 21:22:16,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36735 states. [2018-07-21 21:22:17,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36735 to 36523. [2018-07-21 21:22:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36523 states. [2018-07-21 21:22:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36523 states to 36523 states and 50909 transitions. [2018-07-21 21:22:17,196 INFO L78 Accepts]: Start accepts. Automaton has 36523 states and 50909 transitions. Word has length 143 [2018-07-21 21:22:17,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:22:17,196 INFO L471 AbstractCegarLoop]: Abstraction has 36523 states and 50909 transitions. [2018-07-21 21:22:17,196 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:22:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 36523 states and 50909 transitions. [2018-07-21 21:22:17,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-21 21:22:17,207 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:22:17,207 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 21:22:17,207 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 21:22:17,208 INFO L82 PathProgramCache]: Analyzing trace with hash -811256364, now seen corresponding path program 1 times [2018-07-21 21:22:17,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:22:17,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:22:17,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:22:17,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:22:17,211 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:22:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:22:17,773 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:22:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 62 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 21:22:18,197 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:22:18,216 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 21:22:18,217 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-07-21 21:22:18,219 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], [5454], [5456], [5459], [5467], [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], [5743], [5746], [5750], [5751], [5755], [5766], [5770], [5774], [5778], [5782], [5786], [5790], [5794], [5798], [5802], [5806], [5810], [5821], [5832], [5843], [5847], [5851], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5901], [6826], [6833], [6834], [6835], [6837], [6838] [2018-07-21 21:22:18,306 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 21:22:18,307 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 21:22:30,252 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 21:22:30,306 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 21:22:30,307 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 21:22:30,350 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 21:22:43,061 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 75.46% of their original sizes. [2018-07-21 21:22:43,061 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 21:22:43,832 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 21:22:43,833 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 21:22:43,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 21:22:43,833 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:22:43,834 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 21:22:43,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 21:22:43,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 21:22:43,835 INFO L87 Difference]: Start difference. First operand 36523 states and 50909 transitions. Second operand 7 states. Received shutdown request... [2018-07-21 21:23:34,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:23:34,927 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 21:23:34,932 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 21:23:34,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:23:34 BoogieIcfgContainer [2018-07-21 21:23:34,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 21:23:34,933 INFO L168 Benchmark]: Toolchain (without parser) took 203459.75 ms. Allocated memory was 309.3 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 228.5 MB in the beginning and 503.8 MB in the end (delta: -275.3 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-21 21:23:34,933 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:23:34,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4630.12 ms. Allocated memory was 309.3 MB in the beginning and 393.2 MB in the end (delta: 83.9 MB). Free memory was 228.5 MB in the beginning and 118.0 MB in the end (delta: 110.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 5.3 GB. [2018-07-21 21:23:34,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 1479.79 ms. Allocated memory was 393.2 MB in the beginning and 694.7 MB in the end (delta: 301.5 MB). Free memory was 118.0 MB in the beginning and 537.5 MB in the end (delta: -419.5 MB). Peak memory consumption was 98.0 MB. Max. memory is 5.3 GB. [2018-07-21 21:23:34,936 INFO L168 Benchmark]: Boogie Preprocessor took 962.35 ms. Allocated memory is still 694.7 MB. Free memory was 537.5 MB in the beginning and 437.8 MB in the end (delta: 99.7 MB). Peak memory consumption was 99.7 MB. Max. memory is 5.3 GB. [2018-07-21 21:23:34,936 INFO L168 Benchmark]: RCFGBuilder took 18188.57 ms. Allocated memory was 694.7 MB in the beginning and 1.0 GB in the end (delta: 315.6 MB). Free memory was 437.8 MB in the beginning and 730.3 MB in the end (delta: -292.5 MB). Peak memory consumption was 326.8 MB. Max. memory is 5.3 GB. [2018-07-21 21:23:34,937 INFO L168 Benchmark]: TraceAbstraction took 178185.51 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 730.3 MB in the beginning and 503.8 MB in the end (delta: 226.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-21 21:23:34,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4630.12 ms. Allocated memory was 309.3 MB in the beginning and 393.2 MB in the end (delta: 83.9 MB). Free memory was 228.5 MB in the beginning and 118.0 MB in the end (delta: 110.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 1479.79 ms. Allocated memory was 393.2 MB in the beginning and 694.7 MB in the end (delta: 301.5 MB). Free memory was 118.0 MB in the beginning and 537.5 MB in the end (delta: -419.5 MB). Peak memory consumption was 98.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 962.35 ms. Allocated memory is still 694.7 MB. Free memory was 537.5 MB in the beginning and 437.8 MB in the end (delta: 99.7 MB). Peak memory consumption was 99.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 18188.57 ms. Allocated memory was 694.7 MB in the beginning and 1.0 GB in the end (delta: 315.6 MB). Free memory was 437.8 MB in the beginning and 730.3 MB in the end (delta: -292.5 MB). Peak memory consumption was 326.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 178185.51 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 730.3 MB in the beginning and 503.8 MB in the end (delta: 226.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 109). Cancelled while BasicCegarLoop was constructing difference of abstraction (36523states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (2207 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 178.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 147.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2661 SDtfs, 23453 SDslu, 2919 SDs, 0 SdLazy, 43051 SolverSat, 10994 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 121.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 246 GetRequests, 213 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36523occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9955325443786981 AbsIntWeakeningRatio, 0.1346153846153846 AbsIntAvgWeakeningVarsNumRemoved, 46.13461538461539 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 444 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 607 ConstructedInterpolants, 0 QuantifiedInterpolants, 382943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 160/225 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_label39_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_21-23-34-958.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label39_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_21-23-34-958.csv Completed graceful shutdown