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/Problem02_label53_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 08:17:44,811 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 08:17:44,813 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 08:17:44,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 08:17:44,840 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 08:17:44,841 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 08:17:44,843 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 08:17:44,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 08:17:44,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 08:17:44,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 08:17:44,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 08:17:44,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 08:17:44,865 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 08:17:44,866 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 08:17:44,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 08:17:44,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 08:17:44,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 08:17:44,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 08:17:44,878 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 08:17:44,879 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 08:17:44,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 08:17:44,887 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 08:17:44,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 08:17:44,894 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 08:17:44,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 08:17:44,895 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 08:17:44,896 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 08:17:44,897 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 08:17:44,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 08:17:44,902 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 08:17:44,903 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 08:17:44,903 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 08:17:44,904 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 08:17:44,904 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 08:17:44,906 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 08:17:44,907 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 08:17:44,908 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 08:17:44,936 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 08:17:44,936 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 08:17:44,940 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 08:17:44,941 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 08:17:44,941 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 08:17:44,941 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 08:17:44,941 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 08:17:44,941 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 08:17:44,942 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 08:17:44,942 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 08:17:44,942 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 08:17:44,942 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 08:17:44,944 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 08:17:44,944 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 08:17:44,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 08:17:44,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 08:17:44,945 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 08:17:44,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 08:17:44,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 08:17:44,945 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 08:17:44,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 08:17:44,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 08:17:44,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 08:17:44,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 08:17:44,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 08:17:44,946 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 08:17:44,947 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 08:17:44,949 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 08:17:44,949 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 08:17:44,949 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 08:17:44,949 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 08:17:44,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 08:17:44,950 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 08:17:44,950 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 08:17:44,950 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 08:17:45,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 08:17:45,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 08:17:45,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 08:17:45,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 08:17:45,039 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 08:17:45,040 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53_true-unreach-call_false-termination.c [2018-07-21 08:17:45,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/1928ca5cd/487a0230a6814dbd974e69d51c6fc31a/FLAG1fd9489a6 [2018-07-21 08:17:45,764 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 08:17:45,765 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label53_true-unreach-call_false-termination.c [2018-07-21 08:17:45,798 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/1928ca5cd/487a0230a6814dbd974e69d51c6fc31a/FLAG1fd9489a6 [2018-07-21 08:17:45,821 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/1928ca5cd/487a0230a6814dbd974e69d51c6fc31a [2018-07-21 08:17:45,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 08:17:45,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 08:17:45,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 08:17:45,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 08:17:45,855 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 08:17:45,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:17:45" (1/1) ... [2018-07-21 08:17:45,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c62967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:45, skipping insertion in model container [2018-07-21 08:17:45,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:17:45" (1/1) ... [2018-07-21 08:17:46,095 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 08:17:46,344 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 08:17:46,363 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 08:17:46,571 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 08:17:46,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46 WrapperNode [2018-07-21 08:17:46,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 08:17:46,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 08:17:46,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 08:17:46,627 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 08:17:46,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 08:17:46,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 08:17:46,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 08:17:46,729 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 08:17:46,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (1/1) ... [2018-07-21 08:17:46,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 08:17:46,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 08:17:46,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 08:17:46,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 08:17:46,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (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 08:17:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 08:17:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 08:17:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 08:17:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 08:17:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 08:17:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 08:17:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 08:17:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 08:17:50,664 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 08:17:50,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:17:50 BoogieIcfgContainer [2018-07-21 08:17:50,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 08:17:50,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 08:17:50,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 08:17:50,680 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 08:17:50,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:17:45" (1/3) ... [2018-07-21 08:17:50,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cca7ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:17:50, skipping insertion in model container [2018-07-21 08:17:50,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:17:46" (2/3) ... [2018-07-21 08:17:50,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cca7ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:17:50, skipping insertion in model container [2018-07-21 08:17:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:17:50" (3/3) ... [2018-07-21 08:17:50,691 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label53_true-unreach-call_false-termination.c [2018-07-21 08:17:50,702 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 08:17:50,713 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 08:17:50,769 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 08:17:50,770 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 08:17:50,770 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 08:17:50,770 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 08:17:50,771 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 08:17:50,771 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 08:17:50,771 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 08:17:50,771 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 08:17:50,771 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 08:17:50,800 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-21 08:17:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-21 08:17:50,817 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:17:50,819 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] [2018-07-21 08:17:50,819 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:17:50,825 INFO L82 PathProgramCache]: Analyzing trace with hash 151697799, now seen corresponding path program 1 times [2018-07-21 08:17:50,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:17:50,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:50,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:17:50,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:50,871 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:17:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:17:51,513 WARN L169 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 08:17:51,670 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 08:17:51,673 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:17:51,673 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 08:17:51,674 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:17:51,679 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 08:17:51,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 08:17:51,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:17:51,705 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-21 08:17:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:17:53,398 INFO L93 Difference]: Finished difference Result 621 states and 1060 transitions. [2018-07-21 08:17:53,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 08:17:53,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-07-21 08:17:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:17:53,425 INFO L225 Difference]: With dead ends: 621 [2018-07-21 08:17:53,425 INFO L226 Difference]: Without dead ends: 382 [2018-07-21 08:17:53,432 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:17:53,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-07-21 08:17:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2018-07-21 08:17:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-07-21 08:17:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 637 transitions. [2018-07-21 08:17:53,516 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 637 transitions. Word has length 145 [2018-07-21 08:17:53,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:17:53,517 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 637 transitions. [2018-07-21 08:17:53,517 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 08:17:53,518 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 637 transitions. [2018-07-21 08:17:53,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-21 08:17:53,525 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:17:53,526 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 08:17:53,526 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:17:53,526 INFO L82 PathProgramCache]: Analyzing trace with hash 627656218, now seen corresponding path program 1 times [2018-07-21 08:17:53,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:17:53,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:53,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:17:53,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:53,529 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:17:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:17:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:17:53,915 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:17:53,915 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 08:17:53,915 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:17:53,918 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 08:17:53,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 08:17:53,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:17:53,919 INFO L87 Difference]: Start difference. First operand 381 states and 637 transitions. Second operand 6 states. [2018-07-21 08:17:55,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:17:55,414 INFO L93 Difference]: Finished difference Result 1046 states and 1841 transitions. [2018-07-21 08:17:55,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 08:17:55,415 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-07-21 08:17:55,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:17:55,420 INFO L225 Difference]: With dead ends: 1046 [2018-07-21 08:17:55,420 INFO L226 Difference]: Without dead ends: 379 [2018-07-21 08:17:55,425 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:17:55,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2018-07-21 08:17:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2018-07-21 08:17:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-07-21 08:17:55,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 627 transitions. [2018-07-21 08:17:55,465 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 627 transitions. Word has length 154 [2018-07-21 08:17:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:17:55,466 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 627 transitions. [2018-07-21 08:17:55,466 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 08:17:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 627 transitions. [2018-07-21 08:17:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-21 08:17:55,470 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:17:55,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:17:55,471 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:17:55,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1837930851, now seen corresponding path program 1 times [2018-07-21 08:17:55,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:17:55,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:55,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:17:55,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:55,474 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:17:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:17:55,747 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 08:17:55,993 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 08:17:55,994 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:17:55,994 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 08:17:55,994 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:17:55,995 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 08:17:55,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 08:17:55,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 08:17:55,996 INFO L87 Difference]: Start difference. First operand 379 states and 627 transitions. Second operand 6 states. [2018-07-21 08:17:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:17:58,194 INFO L93 Difference]: Finished difference Result 980 states and 1655 transitions. [2018-07-21 08:17:58,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 08:17:58,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2018-07-21 08:17:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:17:58,203 INFO L225 Difference]: With dead ends: 980 [2018-07-21 08:17:58,203 INFO L226 Difference]: Without dead ends: 607 [2018-07-21 08:17:58,206 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 08:17:58,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2018-07-21 08:17:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 587. [2018-07-21 08:17:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2018-07-21 08:17:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 914 transitions. [2018-07-21 08:17:58,276 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 914 transitions. Word has length 179 [2018-07-21 08:17:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:17:58,276 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 914 transitions. [2018-07-21 08:17:58,276 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 08:17:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 914 transitions. [2018-07-21 08:17:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-21 08:17:58,283 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:17:58,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:17:58,284 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:17:58,284 INFO L82 PathProgramCache]: Analyzing trace with hash -355169643, now seen corresponding path program 1 times [2018-07-21 08:17:58,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:17:58,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:58,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:17:58,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:17:58,287 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:17:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:17:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:17:58,519 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 08:17:58,519 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 08:17:58,519 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:17:58,519 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 08:17:58,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 08:17:58,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:17:58,520 INFO L87 Difference]: Start difference. First operand 587 states and 914 transitions. Second operand 3 states. [2018-07-21 08:18:00,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:18:00,268 INFO L93 Difference]: Finished difference Result 1653 states and 2660 transitions. [2018-07-21 08:18:00,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 08:18:00,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2018-07-21 08:18:00,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:18:00,281 INFO L225 Difference]: With dead ends: 1653 [2018-07-21 08:18:00,281 INFO L226 Difference]: Without dead ends: 1072 [2018-07-21 08:18:00,285 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 08:18:00,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2018-07-21 08:18:00,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1068. [2018-07-21 08:18:00,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-21 08:18:00,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1606 transitions. [2018-07-21 08:18:00,344 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1606 transitions. Word has length 180 [2018-07-21 08:18:00,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:18:00,345 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1606 transitions. [2018-07-21 08:18:00,345 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 08:18:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1606 transitions. [2018-07-21 08:18:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-07-21 08:18:00,354 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:18:00,354 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, 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] [2018-07-21 08:18:00,354 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:18:00,354 INFO L82 PathProgramCache]: Analyzing trace with hash 337466047, now seen corresponding path program 1 times [2018-07-21 08:18:00,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:18:00,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:18:00,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:18:00,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:18:00,356 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:18:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:18:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 08:18:00,606 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:18:00,606 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 08:18:00,607 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-07-21 08:18:00,609 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [827], [831], [833], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 08:18:00,688 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 08:18:00,688 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 08:18:53,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 08:18:53,232 INFO L272 AbstractInterpreter]: Visited 149 different actions 211 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-07-21 08:18:53,273 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 08:19:07,318 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 81.29% of their original sizes. [2018-07-21 08:19:07,318 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 08:19:17,165 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 08:19:17,166 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 08:19:17,166 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-07-21 08:19:17,166 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 08:19:17,167 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-21 08:19:17,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-21 08:19:17,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2018-07-21 08:19:17,167 INFO L87 Difference]: Start difference. First operand 1068 states and 1606 transitions. Second operand 19 states. [2018-07-21 08:19:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 08:19:43,132 INFO L93 Difference]: Finished difference Result 2593 states and 3889 transitions. [2018-07-21 08:19:43,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-21 08:19:43,132 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 211 [2018-07-21 08:19:43,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 08:19:43,141 INFO L225 Difference]: With dead ends: 2593 [2018-07-21 08:19:43,141 INFO L226 Difference]: Without dead ends: 1531 [2018-07-21 08:19:43,145 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 128 SyntacticMatches, 65 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=360, Invalid=1200, Unknown=0, NotChecked=0, Total=1560 [2018-07-21 08:19:43,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2018-07-21 08:19:43,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1517. [2018-07-21 08:19:43,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1517 states. [2018-07-21 08:19:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2097 transitions. [2018-07-21 08:19:43,219 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2097 transitions. Word has length 211 [2018-07-21 08:19:43,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 08:19:43,219 INFO L471 AbstractCegarLoop]: Abstraction has 1517 states and 2097 transitions. [2018-07-21 08:19:43,219 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-21 08:19:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2097 transitions. [2018-07-21 08:19:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-07-21 08:19:43,229 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 08:19:43,229 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-21 08:19:43,229 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 08:19:43,230 INFO L82 PathProgramCache]: Analyzing trace with hash 795506494, now seen corresponding path program 1 times [2018-07-21 08:19:43,230 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 08:19:43,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:19:43,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:19:43,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 08:19:43,232 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 08:19:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:19:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 73 proven. 37 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 08:19:43,420 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:19:43,420 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 08:19:43,420 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-07-21 08:19:43,421 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [827], [831], [833], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 08:19:43,429 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 08:19:43,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 08:21:48,102 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 08:21:48,103 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 08:21:48,104 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 08:21:48,104 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 08:21:48,104 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 08:21:48,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 08:21:48,113 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 08:21:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 08:21:48,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 08:21:48,256 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 08:21:48,457 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 08:21:48,457 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 08:21:48,462 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 08:21:48,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:21:48 BoogieIcfgContainer [2018-07-21 08:21:48,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 08:21:48,463 INFO L168 Benchmark]: Toolchain (without parser) took 242627.08 ms. Allocated memory was 308.3 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 252.8 MB in the beginning and 267.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-21 08:21:48,464 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 308.3 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 08:21:48,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.19 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 218.9 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. [2018-07-21 08:21:48,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.80 ms. Allocated memory is still 308.3 MB. Free memory was 218.9 MB in the beginning and 213.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. [2018-07-21 08:21:48,466 INFO L168 Benchmark]: Boogie Preprocessor took 83.46 ms. Allocated memory is still 308.3 MB. Free memory was 213.0 MB in the beginning and 208.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. [2018-07-21 08:21:48,467 INFO L168 Benchmark]: RCFGBuilder took 3853.08 ms. Allocated memory was 308.3 MB in the beginning and 480.8 MB in the end (delta: 172.5 MB). Free memory was 208.9 MB in the beginning and 339.8 MB in the end (delta: -130.9 MB). Peak memory consumption was 57.8 MB. Max. memory is 5.3 GB. [2018-07-21 08:21:48,467 INFO L168 Benchmark]: TraceAbstraction took 237786.60 ms. Allocated memory was 480.8 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 337.7 MB in the beginning and 267.2 MB in the end (delta: 70.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 5.3 GB. [2018-07-21 08:21:48,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 308.3 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 781.19 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 218.9 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 101.80 ms. Allocated memory is still 308.3 MB. Free memory was 218.9 MB in the beginning and 213.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 83.46 ms. Allocated memory is still 308.3 MB. Free memory was 213.0 MB in the beginning and 208.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3853.08 ms. Allocated memory was 308.3 MB in the beginning and 480.8 MB in the end (delta: 172.5 MB). Free memory was 208.9 MB in the beginning and 339.8 MB in the end (delta: -130.9 MB). Peak memory consumption was 57.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 237786.60 ms. Allocated memory was 480.8 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 337.7 MB in the beginning and 267.2 MB in the end (delta: 70.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 586]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 586). Cancelled while BasicCegarLoop was analyzing trace of length 222 with TraceHistMax 4, 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 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 237.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 33.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 774 SDtfs, 3621 SDslu, 583 SDs, 0 SdLazy, 3773 SolverSat, 923 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 258 GetRequests, 139 SyntacticMatches, 68 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1517occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 177.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.995590327169275 AbsIntWeakeningRatio, 0.15714285714285714 AbsIntAvgWeakeningVarsNumRemoved, 212.6904761904762 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 39 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 869 NumberOfCodeBlocks, 869 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 864 ConstructedInterpolants, 0 QuantifiedInterpolants, 572378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 158/160 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/Problem02_label53_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_08-21-48-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label53_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_08-21-48-488.csv Completed graceful shutdown