java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:52:53,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:52:53,954 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:52:53,966 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:52:53,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:52:53,968 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:52:53,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:52:53,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:52:53,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:52:53,973 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:52:53,974 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:52:53,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:52:53,976 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:52:53,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:52:53,978 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:52:53,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:52:53,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:52:53,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:52:53,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:52:53,985 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:52:53,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:52:53,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:52:53,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:52:53,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:52:53,990 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:52:53,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:52:53,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:52:53,993 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:52:53,994 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:52:53,995 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:52:53,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:52:53,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:52:53,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:52:54,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:52:54,002 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:52:54,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:52:54,003 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:52:54,023 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:52:54,023 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:52:54,024 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:52:54,024 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:52:54,024 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:52:54,025 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:52:54,025 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:52:54,025 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:52:54,025 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:52:54,025 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:52:54,026 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:52:54,026 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:52:54,027 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:52:54,027 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:52:54,027 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:52:54,027 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:52:54,027 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:52:54,028 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:52:54,028 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:52:54,028 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:52:54,028 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:52:54,029 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:52:54,029 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:52:54,029 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:52:54,029 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:52:54,029 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:52:54,030 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:52:54,030 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:52:54,030 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:52:54,030 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:52:54,030 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:52:54,030 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:52:54,031 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:52:54,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:52:54,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:52:54,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:52:54,104 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:52:54,104 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:52:54,105 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label38_true-unreach-call.c [2018-07-24 14:52:54,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb16bce2/25ad3cf094d3484aaa3cefb6048325bd/FLAGead8391d3 [2018-07-24 14:52:54,855 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:52:54,856 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label38_true-unreach-call.c [2018-07-24 14:52:54,888 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb16bce2/25ad3cf094d3484aaa3cefb6048325bd/FLAGead8391d3 [2018-07-24 14:52:54,911 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb16bce2/25ad3cf094d3484aaa3cefb6048325bd [2018-07-24 14:52:54,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:52:54,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:52:54,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:52:54,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:52:54,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:52:54,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:52:54" (1/1) ... [2018-07-24 14:52:54,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f89aecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:54, skipping insertion in model container [2018-07-24 14:52:54,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:52:54" (1/1) ... [2018-07-24 14:52:55,253 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:52:56,101 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:52:56,117 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:52:56,582 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:52:56,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56 WrapperNode [2018-07-24 14:52:56,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:52:56,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:52:56,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:52:56,797 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:52:56,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:56,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:52:57,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:52:57,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:52:57,099 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:52:57,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... [2018-07-24 14:52:57,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:52:57,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:52:57,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:52:57,918 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:52:57,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (1/1) ... No working directory specified, using /storage/repos/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 [2018-07-24 14:52:57,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:52:57,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:52:57,993 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:52:57,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:52:57,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:52:57,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:52:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:52:57,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:52:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:52:57,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:53:08,251 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:53:08,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:53:08 BoogieIcfgContainer [2018-07-24 14:53:08,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:53:08,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:53:08,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:53:08,259 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:53:08,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:52:54" (1/3) ... [2018-07-24 14:53:08,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ab7dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:53:08, skipping insertion in model container [2018-07-24 14:53:08,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:56" (2/3) ... [2018-07-24 14:53:08,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ab7dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:53:08, skipping insertion in model container [2018-07-24 14:53:08,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:53:08" (3/3) ... [2018-07-24 14:53:08,263 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label38_true-unreach-call.c [2018-07-24 14:53:08,274 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:53:08,284 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:53:08,343 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:53:08,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:53:08,344 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:53:08,344 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:53:08,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:53:08,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:53:08,344 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:53:08,345 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:53:08,345 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:53:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 14:53:08,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-24 14:53:08,392 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:53:08,393 INFO L353 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] [2018-07-24 14:53:08,394 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:53:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash -893569215, now seen corresponding path program 1 times [2018-07-24 14:53:08,402 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:53:08,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:08,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:08,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:08,457 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:53:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:53:08,884 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:53:08,884 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:53:08,884 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:53:08,890 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:53:08,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:53:08,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:53:08,911 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 14:53:21,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:53:21,376 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-07-24 14:53:21,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:53:21,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-07-24 14:53:21,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:53:21,416 INFO L225 Difference]: With dead ends: 2162 [2018-07-24 14:53:21,417 INFO L226 Difference]: Without dead ends: 1552 [2018-07-24 14:53:21,431 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:53:21,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-07-24 14:53:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-07-24 14:53:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-07-24 14:53:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-07-24 14:53:21,620 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 59 [2018-07-24 14:53:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:53:21,621 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-07-24 14:53:21,621 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:53:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-07-24 14:53:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-24 14:53:21,642 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:53:21,643 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:53:21,644 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:53:21,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1790006234, now seen corresponding path program 1 times [2018-07-24 14:53:21,645 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:53:21,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:21,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:21,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:21,646 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:53:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:22,010 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:53:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:53:22,067 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:53:22,067 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:53:22,067 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:53:22,069 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:53:22,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:53:22,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:53:22,070 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-07-24 14:53:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:53:30,962 INFO L93 Difference]: Finished difference Result 4431 states and 8042 transitions. [2018-07-24 14:53:30,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:53:30,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-07-24 14:53:30,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:53:30,988 INFO L225 Difference]: With dead ends: 4431 [2018-07-24 14:53:30,988 INFO L226 Difference]: Without dead ends: 2912 [2018-07-24 14:53:30,995 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:53:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2018-07-24 14:53:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2878. [2018-07-24 14:53:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2018-07-24 14:53:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4713 transitions. [2018-07-24 14:53:31,089 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4713 transitions. Word has length 135 [2018-07-24 14:53:31,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:53:31,089 INFO L471 AbstractCegarLoop]: Abstraction has 2878 states and 4713 transitions. [2018-07-24 14:53:31,090 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:53:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4713 transitions. [2018-07-24 14:53:31,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-24 14:53:31,093 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:53:31,093 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:53:31,094 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:53:31,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1801941666, now seen corresponding path program 1 times [2018-07-24 14:53:31,094 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:53:31,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:31,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:31,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:31,095 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:53:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:53:31,420 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:53:31,420 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:53:31,421 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:53:31,421 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:53:31,422 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:53:31,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:53:31,422 INFO L87 Difference]: Start difference. First operand 2878 states and 4713 transitions. Second operand 6 states. [2018-07-24 14:53:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:53:38,036 INFO L93 Difference]: Finished difference Result 7152 states and 11703 transitions. [2018-07-24 14:53:38,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:53:38,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-07-24 14:53:38,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:53:38,065 INFO L225 Difference]: With dead ends: 7152 [2018-07-24 14:53:38,065 INFO L226 Difference]: Without dead ends: 4280 [2018-07-24 14:53:38,079 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:53:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2018-07-24 14:53:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4238. [2018-07-24 14:53:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4238 states. [2018-07-24 14:53:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 5870 transitions. [2018-07-24 14:53:38,204 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 5870 transitions. Word has length 139 [2018-07-24 14:53:38,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:53:38,205 INFO L471 AbstractCegarLoop]: Abstraction has 4238 states and 5870 transitions. [2018-07-24 14:53:38,205 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:53:38,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 5870 transitions. [2018-07-24 14:53:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-24 14:53:38,209 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:53:38,209 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:53:38,210 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:53:38,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1032620341, now seen corresponding path program 1 times [2018-07-24 14:53:38,210 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:53:38,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:38,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:38,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:38,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:53:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 14:53:38,565 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:53:38,566 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:53:38,566 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:53:38,567 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:53:38,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:53:38,567 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:53:38,568 INFO L87 Difference]: Start difference. First operand 4238 states and 5870 transitions. Second operand 3 states. [2018-07-24 14:53:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:53:45,068 INFO L93 Difference]: Finished difference Result 12003 states and 16910 transitions. [2018-07-24 14:53:45,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:53:45,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2018-07-24 14:53:45,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:53:45,115 INFO L225 Difference]: With dead ends: 12003 [2018-07-24 14:53:45,115 INFO L226 Difference]: Without dead ends: 7771 [2018-07-24 14:53:45,146 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:53:45,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7771 states. [2018-07-24 14:53:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7771 to 7770. [2018-07-24 14:53:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7770 states. [2018-07-24 14:53:45,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7770 states to 7770 states and 9967 transitions. [2018-07-24 14:53:45,345 INFO L78 Accepts]: Start accepts. Automaton has 7770 states and 9967 transitions. Word has length 223 [2018-07-24 14:53:45,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:53:45,346 INFO L471 AbstractCegarLoop]: Abstraction has 7770 states and 9967 transitions. [2018-07-24 14:53:45,346 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:53:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7770 states and 9967 transitions. [2018-07-24 14:53:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-07-24 14:53:45,355 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:53:45,357 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:53:45,358 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:53:45,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1436411273, now seen corresponding path program 1 times [2018-07-24 14:53:45,358 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:53:45,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:45,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:45,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:45,360 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:53:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:45,754 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 122 proven. 50 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:53:45,754 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:53:45,754 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/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 [2018-07-24 14:53:45,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:45,775 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:53:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:45,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:53:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 14:53:46,036 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:53:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 14:53:46,256 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:53:46,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-07-24 14:53:46,257 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:53:46,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:53:46,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:53:46,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:53:46,260 INFO L87 Difference]: Start difference. First operand 7770 states and 9967 transitions. Second operand 3 states. [2018-07-24 14:53:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:53:51,932 INFO L93 Difference]: Finished difference Result 22583 states and 29817 transitions. [2018-07-24 14:53:51,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:53:51,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-07-24 14:53:51,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:53:52,034 INFO L225 Difference]: With dead ends: 22583 [2018-07-24 14:53:52,034 INFO L226 Difference]: Without dead ends: 14819 [2018-07-24 14:53:52,099 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:53:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14819 states. [2018-07-24 14:53:52,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14819 to 14817. [2018-07-24 14:53:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14817 states. [2018-07-24 14:53:52,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14817 states to 14817 states and 18288 transitions. [2018-07-24 14:53:52,541 INFO L78 Accepts]: Start accepts. Automaton has 14817 states and 18288 transitions. Word has length 242 [2018-07-24 14:53:52,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:53:52,542 INFO L471 AbstractCegarLoop]: Abstraction has 14817 states and 18288 transitions. [2018-07-24 14:53:52,542 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:53:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 14817 states and 18288 transitions. [2018-07-24 14:53:52,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-24 14:53:52,565 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:53:52,566 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:53:52,566 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:53:52,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1855622684, now seen corresponding path program 1 times [2018-07-24 14:53:52,567 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:53:52,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:52,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:52,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:53:52,568 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:53:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 81 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 14:53:53,285 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:53:53,286 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:53:53,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:53:53,297 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:53:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:53:53,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:53:54,023 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-24 14:53:54,654 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 21 [2018-07-24 14:53:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-07-24 14:53:55,421 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:53:55,950 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2018-07-24 14:53:56,219 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-07-24 14:53:59,188 WARN L169 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-07-24 14:54:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:54:00,253 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:54:00,254 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:54:00,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:54:00,270 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:54:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:54:00,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:54:04,848 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 14:54:04,849 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:54:13,361 WARN L169 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-07-24 14:54:14,043 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:54:14,046 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:54:14,046 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 7, 8] total 27 [2018-07-24 14:54:14,047 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:54:14,048 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 14:54:14,048 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 14:54:14,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=572, Unknown=5, NotChecked=0, Total=702 [2018-07-24 14:54:14,050 INFO L87 Difference]: Start difference. First operand 14817 states and 18288 transitions. Second operand 14 states. Received shutdown request... [2018-07-24 14:57:18,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-24 14:57:18,598 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:57:18,610 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:57:18,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:57:18 BoogieIcfgContainer [2018-07-24 14:57:18,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:57:18,611 INFO L168 Benchmark]: Toolchain (without parser) took 263685.18 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -260.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-24 14:57:18,613 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:57:18,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1867.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:57:18,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 301.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:57:18,616 INFO L168 Benchmark]: Boogie Preprocessor took 818.45 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 938.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-07-24 14:57:18,616 INFO L168 Benchmark]: RCFGBuilder took 10334.62 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 504.1 MB). Peak memory consumption was 504.1 MB. Max. memory is 7.1 GB. [2018-07-24 14:57:18,619 INFO L168 Benchmark]: TraceAbstraction took 250356.20 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 554.2 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 166.0 MB). Peak memory consumption was 720.1 MB. Max. memory is 7.1 GB. [2018-07-24 14:57:18,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1867.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 301.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 818.45 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 938.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10334.62 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 504.1 MB). Peak memory consumption was 504.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250356.20 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 554.2 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 166.0 MB). Peak memory consumption was 720.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 164]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 164). Cancelled while BasicCegarLoop was constructing difference of abstraction (14817states) and interpolant automaton (currently 102 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (25918 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 250.2s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 225.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2509 SDtfs, 17555 SDslu, 2160 SDs, 0 SdLazy, 25292 SolverSat, 5044 SolverUnsat, 76 SolverUnknown, 0 SolverNotchecked, 210.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1780 GetRequests, 1633 SyntacticMatches, 7 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4739 ImplicationChecksByTransitivity, 24.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14817occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 22.6s InterpolantComputationTime, 1907 NumberOfCodeBlocks, 1907 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2715 ConstructedInterpolants, 191 QuantifiedInterpolants, 4182457 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1401 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 1421/1775 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label38_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-57-18-649.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label38_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-57-18-649.csv Completed graceful shutdown