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/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:29:40,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:29:40,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:29:40,877 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:29:40,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:29:40,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:29:40,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:29:40,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:29:40,887 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:29:40,888 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:29:40,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:29:40,895 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:29:40,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:29:40,897 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:29:40,898 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:29:40,899 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:29:40,900 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:29:40,901 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:29:40,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:29:40,904 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:29:40,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:29:40,907 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:29:40,909 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 20:29:40,914 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:29:40,914 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:29:40,917 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:29:40,917 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:29:40,917 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 20:29:40,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:29:40,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:29:40,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:29:40,949 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:29:40,950 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:29:40,950 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:29:40,951 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:29:40,951 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:29:40,951 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:29:40,951 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:29:40,951 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:29:40,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:29:40,953 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:29:40,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:29:40,954 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:29:40,954 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:29:40,954 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:29:40,954 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:29:40,954 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:29:40,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:29:40,955 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:29:40,955 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:29:40,955 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:29:40,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:29:40,957 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:29:40,957 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:29:40,957 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:29:40,957 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:29:40,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:29:40,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:29:40,958 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:29:40,958 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:29:40,958 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:29:41,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:29:41,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:29:41,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:29:41,051 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:29:41,052 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:29:41,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c [2018-07-23 20:29:41,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12fe5ac8d/53b0ba30b06143c097e1a9d93b3988e0/FLAGc8abc6357 [2018-07-23 20:29:41,713 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:29:41,714 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c [2018-07-23 20:29:41,736 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12fe5ac8d/53b0ba30b06143c097e1a9d93b3988e0/FLAGc8abc6357 [2018-07-23 20:29:41,759 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12fe5ac8d/53b0ba30b06143c097e1a9d93b3988e0 [2018-07-23 20:29:41,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:29:41,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:29:41,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:29:41,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:29:41,780 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:29:41,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:29:41" (1/1) ... [2018-07-23 20:29:41,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b63e061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:41, skipping insertion in model container [2018-07-23 20:29:41,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:29:41" (1/1) ... [2018-07-23 20:29:41,982 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:29:42,244 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:29:42,262 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:29:42,447 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:29:42,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42 WrapperNode [2018-07-23 20:29:42,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:29:42,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:29:42,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:29:42,504 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:29:42,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:29:42,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:29:42,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:29:42,601 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:29:42,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (1/1) ... [2018-07-23 20:29:42,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:29:42,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:29:42,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:29:42,829 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:29:42,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (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 [2018-07-23 20:29:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 20:29:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 20:29:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:29:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:29:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:29:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:29:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:29:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:29:46,106 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:29:46,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:29:46 BoogieIcfgContainer [2018-07-23 20:29:46,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:29:46,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:29:46,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:29:46,111 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:29:46,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:29:41" (1/3) ... [2018-07-23 20:29:46,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68913e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:29:46, skipping insertion in model container [2018-07-23 20:29:46,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:29:42" (2/3) ... [2018-07-23 20:29:46,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68913e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:29:46, skipping insertion in model container [2018-07-23 20:29:46,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:29:46" (3/3) ... [2018-07-23 20:29:46,116 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label46_true-unreach-call_false-termination.c [2018-07-23 20:29:46,127 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:29:46,140 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:29:46,202 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:29:46,202 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:29:46,203 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:29:46,203 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:29:46,203 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:29:46,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:29:46,204 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:29:46,204 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:29:46,204 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:29:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-23 20:29:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 20:29:46,245 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:29:46,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:29:46,247 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:29:46,252 INFO L82 PathProgramCache]: Analyzing trace with hash 838277565, now seen corresponding path program 1 times [2018-07-23 20:29:46,255 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:29:46,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:46,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:29:46,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:46,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:29:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:29:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:29:46,940 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:29:46,940 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:29:46,940 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:29:46,947 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:29:46,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:29:46,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:29:46,966 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-23 20:29:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:29:48,784 INFO L93 Difference]: Finished difference Result 623 states and 1063 transitions. [2018-07-23 20:29:48,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:29:48,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2018-07-23 20:29:48,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:29:48,808 INFO L225 Difference]: With dead ends: 623 [2018-07-23 20:29:48,809 INFO L226 Difference]: Without dead ends: 384 [2018-07-23 20:29:48,818 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:29:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-07-23 20:29:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2018-07-23 20:29:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-07-23 20:29:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 642 transitions. [2018-07-23 20:29:48,934 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 642 transitions. Word has length 119 [2018-07-23 20:29:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:29:48,939 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 642 transitions. [2018-07-23 20:29:48,939 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:29:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 642 transitions. [2018-07-23 20:29:48,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 20:29:48,959 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:29:48,959 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:29:48,959 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:29:48,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1199385404, now seen corresponding path program 1 times [2018-07-23 20:29:48,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:29:48,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:48,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:29:48,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:48,965 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:29:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:29:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:29:49,198 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:29:49,198 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:29:49,199 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:29:49,201 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:29:49,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:29:49,201 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:29:49,202 INFO L87 Difference]: Start difference. First operand 382 states and 642 transitions. Second operand 3 states. [2018-07-23 20:29:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:29:50,304 INFO L93 Difference]: Finished difference Result 1051 states and 1838 transitions. [2018-07-23 20:29:50,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:29:50,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2018-07-23 20:29:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:29:50,318 INFO L225 Difference]: With dead ends: 1051 [2018-07-23 20:29:50,319 INFO L226 Difference]: Without dead ends: 675 [2018-07-23 20:29:50,322 INFO L573 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 [2018-07-23 20:29:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2018-07-23 20:29:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2018-07-23 20:29:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2018-07-23 20:29:50,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1091 transitions. [2018-07-23 20:29:50,370 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1091 transitions. Word has length 129 [2018-07-23 20:29:50,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:29:50,371 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 1091 transitions. [2018-07-23 20:29:50,371 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:29:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1091 transitions. [2018-07-23 20:29:50,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-23 20:29:50,376 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:29:50,377 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:29:50,377 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:29:50,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1453427957, now seen corresponding path program 1 times [2018-07-23 20:29:50,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:29:50,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:50,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:29:50,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:50,380 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:29:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:29:50,616 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:29:50,616 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:29:50,616 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:29:50,617 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:29:50,617 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:29:50,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:29:50,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:29:50,618 INFO L87 Difference]: Start difference. First operand 675 states and 1091 transitions. Second operand 6 states. [2018-07-23 20:29:53,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:29:53,738 INFO L93 Difference]: Finished difference Result 2200 states and 3725 transitions. [2018-07-23 20:29:53,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:29:53,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-07-23 20:29:53,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:29:53,751 INFO L225 Difference]: With dead ends: 2200 [2018-07-23 20:29:53,751 INFO L226 Difference]: Without dead ends: 1531 [2018-07-23 20:29:53,756 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:29:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2018-07-23 20:29:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1501. [2018-07-23 20:29:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2018-07-23 20:29:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2317 transitions. [2018-07-23 20:29:53,818 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2317 transitions. Word has length 142 [2018-07-23 20:29:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:29:53,818 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 2317 transitions. [2018-07-23 20:29:53,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:29:53,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2317 transitions. [2018-07-23 20:29:53,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 20:29:53,825 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:29:53,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:29:53,825 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:29:53,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1106017223, now seen corresponding path program 1 times [2018-07-23 20:29:53,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:29:53,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:53,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:29:53,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:53,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:29:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:29:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:29:54,126 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:29:54,126 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 20:29:54,126 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:29:54,127 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 20:29:54,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 20:29:54,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:29:54,128 INFO L87 Difference]: Start difference. First operand 1501 states and 2317 transitions. Second operand 5 states. [2018-07-23 20:29:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:29:55,650 INFO L93 Difference]: Finished difference Result 2935 states and 4510 transitions. [2018-07-23 20:29:55,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:29:55,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-07-23 20:29:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:29:55,662 INFO L225 Difference]: With dead ends: 2935 [2018-07-23 20:29:55,662 INFO L226 Difference]: Without dead ends: 1292 [2018-07-23 20:29:55,669 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:29:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2018-07-23 20:29:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2018-07-23 20:29:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-07-23 20:29:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1901 transitions. [2018-07-23 20:29:55,722 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1901 transitions. Word has length 144 [2018-07-23 20:29:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:29:55,723 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1901 transitions. [2018-07-23 20:29:55,723 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 20:29:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1901 transitions. [2018-07-23 20:29:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 20:29:55,730 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:29:55,730 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-07-23 20:29:55,731 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:29:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash -170445952, now seen corresponding path program 1 times [2018-07-23 20:29:55,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:29:55,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:55,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:29:55,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:29:55,732 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:29:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:29:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:29:55,983 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:29:55,983 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:29:55,984 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-07-23 20:29:55,986 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [51], [62], [66], [70], [73], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [197], [208], [212], [216], [220], [231], [235], [239], [243], [247], [251], [255], [266], [270], [281], [285], [296], [307], [311], [315], [319], [323], [327], [331], [342], [346], [350], [354], [358], [362], [366], [370], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [861], [862], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-23 20:29:56,051 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:29:56,052 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:30:12,976 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:30:12,978 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-07-23 20:30:12,992 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:30:15,930 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 81.08% of their original sizes. [2018-07-23 20:30:15,930 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:30:16,748 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:30:16,749 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:30:16,750 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-07-23 20:30:16,750 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:30:16,750 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 20:30:16,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 20:30:16,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-07-23 20:30:16,751 INFO L87 Difference]: Start difference. First operand 1292 states and 1901 transitions. Second operand 10 states. [2018-07-23 20:30:17,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 20:30:17,573 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__a25~0. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:148) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:86) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:370) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:141) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:127) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:309) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:443) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:641) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:570) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 20:30:17,578 INFO L168 Benchmark]: Toolchain (without parser) took 35805.75 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 621.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:17,580 INFO L168 Benchmark]: CDTParser took 0.29 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. [2018-07-23 20:30:17,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:17,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:30:17,582 INFO L168 Benchmark]: Boogie Preprocessor took 228.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -858.3 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:17,583 INFO L168 Benchmark]: RCFGBuilder took 3278.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:17,584 INFO L168 Benchmark]: TraceAbstraction took 31469.02 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 546.3 MB. Max. memory is 7.1 GB. [2018-07-23 20:30:17,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 96.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 228.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -858.3 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3278.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31469.02 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 546.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__a25~0. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__a25~0.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:148) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label46_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-30-17-603.csv Received shutdown request...