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/Problem05_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 10:30:36,763 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 10:30:36,766 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 10:30:36,782 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 10:30:36,783 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 10:30:36,784 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 10:30:36,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 10:30:36,795 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 10:30:36,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 10:30:36,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 10:30:36,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 10:30:36,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 10:30:36,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 10:30:36,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 10:30:36,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 10:30:36,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 10:30:36,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 10:30:36,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 10:30:36,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 10:30:36,822 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 10:30:36,823 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 10:30:36,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 10:30:36,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 10:30:36,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 10:30:36,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 10:30:36,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 10:30:36,834 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 10:30:36,835 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 10:30:36,836 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 10:30:36,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 10:30:36,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 10:30:36,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 10:30:36,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 10:30:36,842 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 10:30:36,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 10:30:36,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 10:30:36,845 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 10:30:36,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 10:30:36,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 10:30:36,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 10:30:36,869 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 10:30:36,869 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 10:30:36,869 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 10:30:36,869 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 10:30:36,870 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 10:30:36,870 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 10:30:36,870 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 10:30:36,870 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 10:30:36,870 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 10:30:36,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 10:30:36,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 10:30:36,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 10:30:36,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 10:30:36,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 10:30:36,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 10:30:36,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 10:30:36,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 10:30:36,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 10:30:36,873 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 10:30:36,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 10:30:36,873 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 10:30:36,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 10:30:36,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 10:30:36,874 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 10:30:36,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 10:30:36,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 10:30:36,874 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 10:30:36,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 10:30:36,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 10:30:36,875 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 10:30:36,875 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 10:30:36,875 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 10:30:36,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 10:30:36,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 10:30:36,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 10:30:36,942 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 10:30:36,943 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 10:30:36,943 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label03_true-unreach-call.c [2018-07-21 10:30:37,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/461a2dd98/0cd83dc519684beab98bf0531a691e51/FLAG96afaf471 [2018-07-21 10:30:38,145 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 10:30:38,146 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label03_true-unreach-call.c [2018-07-21 10:30:38,203 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/461a2dd98/0cd83dc519684beab98bf0531a691e51/FLAG96afaf471 [2018-07-21 10:30:38,226 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/461a2dd98/0cd83dc519684beab98bf0531a691e51 [2018-07-21 10:30:38,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 10:30:38,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 10:30:38,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 10:30:38,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 10:30:38,260 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 10:30:38,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:30:38" (1/1) ... [2018-07-21 10:30:38,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd18400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:38, skipping insertion in model container [2018-07-21 10:30:38,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:30:38" (1/1) ... [2018-07-21 10:30:38,875 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 10:30:41,101 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 10:30:41,122 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 10:30:42,849 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 10:30:43,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43 WrapperNode [2018-07-21 10:30:43,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 10:30:43,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 10:30:43,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 10:30:43,126 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 10:30:43,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 10:30:43,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 10:30:43,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 10:30:43,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 10:30:43,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (1/1) ... [2018-07-21 10:30:43,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 10:30:43,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 10:30:43,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 10:30:43,901 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 10:30:43,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (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 10:30:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 10:30:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 10:30:44,839 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 10:30:44,839 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 10:30:44,840 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 10:30:44,841 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 10:30:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 10:30:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 10:30:44,841 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 10:30:44,841 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 10:30:44,841 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 10:30:44,842 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 10:30:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8 [2018-07-21 10:30:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8 [2018-07-21 10:30:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output7 [2018-07-21 10:30:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output7 [2018-07-21 10:30:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 10:30:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 10:30:44,843 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 10:30:44,843 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 10:30:44,844 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 10:30:44,844 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 10:31:02,437 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 10:31:02,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:31:02 BoogieIcfgContainer [2018-07-21 10:31:02,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 10:31:02,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 10:31:02,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 10:31:02,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 10:31:02,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:30:38" (1/3) ... [2018-07-21 10:31:02,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183e141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:31:02, skipping insertion in model container [2018-07-21 10:31:02,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:30:43" (2/3) ... [2018-07-21 10:31:02,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183e141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:31:02, skipping insertion in model container [2018-07-21 10:31:02,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:31:02" (3/3) ... [2018-07-21 10:31:02,448 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label03_true-unreach-call.c [2018-07-21 10:31:02,457 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 10:31:02,469 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 10:31:02,561 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 10:31:02,562 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 10:31:02,562 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 10:31:02,562 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 10:31:02,562 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 10:31:02,563 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 10:31:02,563 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 10:31:02,564 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 10:31:02,564 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 10:31:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states. [2018-07-21 10:31:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1702 [2018-07-21 10:31:02,785 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 10:31:02,787 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:02,789 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 10:31:02,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1064248090, now seen corresponding path program 1 times [2018-07-21 10:31:02,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 10:31:02,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:02,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:31:02,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:02,853 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 10:31:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:31:05,740 WARN L169 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 10:31:08,801 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 10:31:08,803 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 10:31:08,803 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 10:31:08,804 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 10:31:08,813 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 10:31:08,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 10:31:08,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 10:31:08,833 INFO L87 Difference]: Start difference. First operand 2223 states. Second operand 3 states. [2018-07-21 10:31:18,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 10:31:18,789 INFO L93 Difference]: Finished difference Result 6282 states and 11807 transitions. [2018-07-21 10:31:18,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 10:31:18,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1701 [2018-07-21 10:31:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 10:31:18,849 INFO L225 Difference]: With dead ends: 6282 [2018-07-21 10:31:18,849 INFO L226 Difference]: Without dead ends: 4057 [2018-07-21 10:31:18,872 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 10:31:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2018-07-21 10:31:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 4051. [2018-07-21 10:31:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4051 states. [2018-07-21 10:31:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 7097 transitions. [2018-07-21 10:31:19,145 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 7097 transitions. Word has length 1701 [2018-07-21 10:31:19,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 10:31:19,157 INFO L471 AbstractCegarLoop]: Abstraction has 4051 states and 7097 transitions. [2018-07-21 10:31:19,158 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 10:31:19,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 7097 transitions. [2018-07-21 10:31:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2018-07-21 10:31:19,303 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 10:31:19,304 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:19,304 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 10:31:19,306 INFO L82 PathProgramCache]: Analyzing trace with hash -799141992, now seen corresponding path program 1 times [2018-07-21 10:31:19,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 10:31:19,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:19,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:31:19,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:19,308 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 10:31:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:31:19,805 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 10:31:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 10:31:21,140 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 10:31:21,141 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 10:31:21,141 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 10:31:21,145 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 10:31:21,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 10:31:21,146 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 10:31:21,146 INFO L87 Difference]: Start difference. First operand 4051 states and 7097 transitions. Second operand 5 states. [2018-07-21 10:31:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 10:31:32,554 INFO L93 Difference]: Finished difference Result 11785 states and 20940 transitions. [2018-07-21 10:31:32,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 10:31:32,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1711 [2018-07-21 10:31:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 10:31:32,613 INFO L225 Difference]: With dead ends: 11785 [2018-07-21 10:31:32,613 INFO L226 Difference]: Without dead ends: 7740 [2018-07-21 10:31:32,625 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 10:31:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2018-07-21 10:31:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7667. [2018-07-21 10:31:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7667 states. [2018-07-21 10:31:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7667 states to 7667 states and 12840 transitions. [2018-07-21 10:31:32,932 INFO L78 Accepts]: Start accepts. Automaton has 7667 states and 12840 transitions. Word has length 1711 [2018-07-21 10:31:32,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 10:31:32,934 INFO L471 AbstractCegarLoop]: Abstraction has 7667 states and 12840 transitions. [2018-07-21 10:31:32,934 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 10:31:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7667 states and 12840 transitions. [2018-07-21 10:31:33,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1714 [2018-07-21 10:31:33,010 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 10:31:33,012 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:33,012 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 10:31:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash 32457916, now seen corresponding path program 1 times [2018-07-21 10:31:33,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 10:31:33,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:33,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:31:33,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:33,016 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 10:31:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:31:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 10:31:36,781 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 10:31:36,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 10:31:36,781 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 10:31:36,783 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 10:31:36,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 10:31:36,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 10:31:36,784 INFO L87 Difference]: Start difference. First operand 7667 states and 12840 transitions. Second operand 4 states. [2018-07-21 10:31:47,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 10:31:47,855 INFO L93 Difference]: Finished difference Result 29572 states and 51380 transitions. [2018-07-21 10:31:47,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 10:31:47,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1713 [2018-07-21 10:31:47,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 10:31:47,972 INFO L225 Difference]: With dead ends: 29572 [2018-07-21 10:31:47,972 INFO L226 Difference]: Without dead ends: 21911 [2018-07-21 10:31:48,001 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 10:31:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21911 states. [2018-07-21 10:31:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21911 to 21802. [2018-07-21 10:31:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21802 states. [2018-07-21 10:31:48,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21802 states to 21802 states and 34605 transitions. [2018-07-21 10:31:48,750 INFO L78 Accepts]: Start accepts. Automaton has 21802 states and 34605 transitions. Word has length 1713 [2018-07-21 10:31:48,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 10:31:48,753 INFO L471 AbstractCegarLoop]: Abstraction has 21802 states and 34605 transitions. [2018-07-21 10:31:48,753 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 10:31:48,753 INFO L276 IsEmpty]: Start isEmpty. Operand 21802 states and 34605 transitions. [2018-07-21 10:31:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1734 [2018-07-21 10:31:48,867 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 10:31:48,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:48,870 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 10:31:48,871 INFO L82 PathProgramCache]: Analyzing trace with hash -322543349, now seen corresponding path program 1 times [2018-07-21 10:31:48,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 10:31:48,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:48,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:31:48,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:31:48,873 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 10:31:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:31:49,295 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 10:31:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 10:31:51,098 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 10:31:51,098 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 10:31:51,098 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 10:31:51,100 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 10:31:51,101 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 10:31:51,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 10:31:51,101 INFO L87 Difference]: Start difference. First operand 21802 states and 34605 transitions. Second operand 6 states. [2018-07-21 10:32:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 10:32:01,304 INFO L93 Difference]: Finished difference Result 65951 states and 111377 transitions. [2018-07-21 10:32:01,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 10:32:01,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1733 [2018-07-21 10:32:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 10:32:01,535 INFO L225 Difference]: With dead ends: 65951 [2018-07-21 10:32:01,535 INFO L226 Difference]: Without dead ends: 44155 [2018-07-21 10:32:01,618 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 10:32:01,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44155 states. [2018-07-21 10:32:02,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44155 to 43907. [2018-07-21 10:32:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43907 states. [2018-07-21 10:32:03,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43907 states to 43907 states and 71663 transitions. [2018-07-21 10:32:03,026 INFO L78 Accepts]: Start accepts. Automaton has 43907 states and 71663 transitions. Word has length 1733 [2018-07-21 10:32:03,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 10:32:03,027 INFO L471 AbstractCegarLoop]: Abstraction has 43907 states and 71663 transitions. [2018-07-21 10:32:03,027 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 10:32:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 43907 states and 71663 transitions. [2018-07-21 10:32:03,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1905 [2018-07-21 10:32:03,245 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 10:32:03,247 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:03,247 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 10:32:03,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1263561441, now seen corresponding path program 1 times [2018-07-21 10:32:03,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 10:32:03,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:32:03,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:32:03,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:32:03,252 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 10:32:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:32:03,847 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 10:32:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 10:32:06,166 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 10:32:06,166 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 10:32:06,166 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 10:32:06,168 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 10:32:06,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 10:32:06,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 10:32:06,169 INFO L87 Difference]: Start difference. First operand 43907 states and 71663 transitions. Second operand 6 states. [2018-07-21 10:32:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 10:32:17,779 INFO L93 Difference]: Finished difference Result 111208 states and 193029 transitions. [2018-07-21 10:32:17,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 10:32:17,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1904 [2018-07-21 10:32:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 10:32:18,120 INFO L225 Difference]: With dead ends: 111208 [2018-07-21 10:32:18,121 INFO L226 Difference]: Without dead ends: 67307 [2018-07-21 10:32:18,219 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 10:32:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67307 states. [2018-07-21 10:32:19,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67307 to 67099. [2018-07-21 10:32:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67099 states. [2018-07-21 10:32:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67099 states to 67099 states and 104537 transitions. [2018-07-21 10:32:19,987 INFO L78 Accepts]: Start accepts. Automaton has 67099 states and 104537 transitions. Word has length 1904 [2018-07-21 10:32:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 10:32:19,988 INFO L471 AbstractCegarLoop]: Abstraction has 67099 states and 104537 transitions. [2018-07-21 10:32:19,988 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 10:32:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 67099 states and 104537 transitions. [2018-07-21 10:32:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1930 [2018-07-21 10:32:20,213 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 10:32:20,215 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:20,215 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output8Err0AssertViolationERROR_FUNCTION]=== [2018-07-21 10:32:20,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1518074652, now seen corresponding path program 1 times [2018-07-21 10:32:20,216 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 10:32:20,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:32:20,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:32:20,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 10:32:20,218 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 10:32:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:32:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 223 proven. 76 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-21 10:32:24,771 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 10:32:24,772 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 10:32:24,774 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 1930 with the following transitions: [2018-07-21 10:32:24,783 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [32], [36], [47], [51], [55], [59], [63], [67], [71], [75], [79], [83], [87], [98], [102], [106], [110], [114], [118], [129], [133], [137], [141], [145], [156], [160], [164], [168], [172], [176], [187], [191], [195], [199], [203], [207], [211], [215], [219], [223], [227], [231], [235], [239], [243], [247], [251], [255], [259], [263], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [341], [345], [349], [353], [357], [361], [365], [369], [380], [391], [395], [399], [403], [407], [411], [415], [419], [423], [427], [431], [435], [439], [443], [447], [451], [455], [459], [463], [467], [471], [482], [486], [490], [494], [498], [502], [513], [517], [521], [532], [536], [540], [544], [548], [552], [556], [560], [571], [575], [579], [583], [587], [591], [595], [599], [603], [614], [618], [629], [633], [637], [641], [645], [649], [653], [657], [661], [665], [669], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [776], [780], [784], [788], [792], [796], [800], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [886], [890], [894], [898], [902], [906], [910], [914], [925], [929], [933], [937], [948], [959], [963], [967], [971], [975], [986], [990], [994], [1005], [1016], [1020], [1024], [1028], [1039], [1043], [1047], [1051], [1062], [1066], [1070], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], 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[8111], [8115], [8119], [8130], [8134], [8138], [8142], [8146], [8150], [8154], [8158], [8162], [8166], [8170], [8174], [8178], [8182], [8186], [8190], [8194], [8198], [8202], [8206], [8217], [8228], [8232], [8236], [8240], [8244], [8248], [8252], [8256], [8260], [8271], [8275], [8279], [8283], [8287], [8298], [8302], [8306], [8310], [8314], [8318], [8322], [8326], [8337], [8341], [8345], [8349], [8353], [8357], [8368], [8372], [8383], [8387], [8391], [8395], [8406], [8410], [8414], [8418], [8422], [8426], [8430], [8441], [8452], [8456], [8460], [8464], [8468], [8472], [8476], [8480], [8484], [8488], [8492], [8496], [8500], [8504], [8508], [8512], [8516], [8519], [8520], [8522], [8524], [8526], [8528], [8530], [8531], [8532], [8534], [8535], [8536], [8538] [2018-07-21 10:32:24,978 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 10:32:24,978 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 10:34:14,024 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 10:34:14,025 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 10:34:14,026 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 10:34:14,026 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 10:34:14,027 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 10:34:14,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 10:34:14,034 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 10:34:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 10:34:14,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 10:34:14,716 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 10:34:14,919 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 10:34:14,919 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 10:34:14,924 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 10:34:14,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:34:14 BoogieIcfgContainer [2018-07-21 10:34:14,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 10:34:14,926 INFO L168 Benchmark]: Toolchain (without parser) took 216685.75 ms. Allocated memory was 304.6 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 220.1 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-07-21 10:34:14,926 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 10:34:14,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4876.05 ms. Allocated memory was 304.6 MB in the beginning and 396.9 MB in the end (delta: 92.3 MB). Free memory was 219.1 MB in the beginning and 223.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 212.4 MB. Max. memory is 5.3 GB. [2018-07-21 10:34:14,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 190.61 ms. Allocated memory is still 396.9 MB. Free memory was 223.2 MB in the beginning and 209.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. [2018-07-21 10:34:14,928 INFO L168 Benchmark]: Boogie Preprocessor took 584.06 ms. Allocated memory is still 396.9 MB. Free memory was 209.6 MB in the beginning and 149.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 5.3 GB. [2018-07-21 10:34:14,928 INFO L168 Benchmark]: RCFGBuilder took 18536.29 ms. Allocated memory was 396.9 MB in the beginning and 951.6 MB in the end (delta: 554.7 MB). Free memory was 149.0 MB in the beginning and 649.5 MB in the end (delta: -500.4 MB). Peak memory consumption was 314.5 MB. Max. memory is 5.3 GB. [2018-07-21 10:34:14,929 INFO L168 Benchmark]: TraceAbstraction took 192486.35 ms. Allocated memory was 951.6 MB in the beginning and 2.7 GB in the end (delta: 1.8 GB). Free memory was 649.5 MB in the beginning and 1.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 793.9 MB. Max. memory is 5.3 GB. [2018-07-21 10:34:14,933 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4876.05 ms. Allocated memory was 304.6 MB in the beginning and 396.9 MB in the end (delta: 92.3 MB). Free memory was 219.1 MB in the beginning and 223.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 212.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 190.61 ms. Allocated memory is still 396.9 MB. Free memory was 223.2 MB in the beginning and 209.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 584.06 ms. Allocated memory is still 396.9 MB. Free memory was 209.6 MB in the beginning and 149.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 18536.29 ms. Allocated memory was 396.9 MB in the beginning and 951.6 MB in the end (delta: 554.7 MB). Free memory was 149.0 MB in the beginning and 649.5 MB in the end (delta: -500.4 MB). Peak memory consumption was 314.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 192486.35 ms. Allocated memory was 951.6 MB in the beginning and 2.7 GB in the end (delta: 1.8 GB). Free memory was 649.5 MB in the beginning and 1.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 793.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 11084]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 11084). Cancelled while BasicCegarLoop was analyzing trace of length 1930 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 2223 locations, 1 error locations. TIMEOUT Result, 192.3s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 55.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4628 SDtfs, 30647 SDslu, 3583 SDs, 0 SdLazy, 47312 SolverSat, 15078 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 12 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67099occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 109.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 644 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 8762 NumberOfCodeBlocks, 8762 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 8757 ConstructedInterpolants, 0 QuantifiedInterpolants, 33084567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 243/243 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/Problem05_label03_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_10-34-14-951.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem05_label03_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_10-34-14-951.csv Completed graceful shutdown