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/Problem13_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:22:41,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:22:41,881 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:22:41,899 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:22:41,899 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:22:41,900 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:22:41,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:22:41,904 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:22:41,907 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:22:41,915 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:22:41,916 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:22:41,916 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:22:41,917 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:22:41,920 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:22:41,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:22:41,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:22:41,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:22:41,926 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:22:41,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:22:41,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:22:41,936 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:22:41,937 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:22:41,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 22:22:41,947 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:22:41,948 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:22:41,948 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:22:41,949 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:22:41,949 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 22:22:41,970 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:22:41,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:22:41,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:22:41,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:22:41,972 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:22:41,972 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:22:41,972 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:22:41,972 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:22:41,973 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:22:41,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:22:41,973 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:22:41,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:22:41,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:22:41,974 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:22:41,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:22:41,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:22:41,974 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:22:41,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:22:41,975 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:22:41,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:22:41,975 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:22:41,975 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:22:41,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:22:41,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:22:41,976 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:22:41,976 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:22:41,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:22:41,977 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:22:41,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:22:41,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:22:41,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:22:41,977 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:22:41,978 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:22:42,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:22:42,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:22:42,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:22:42,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:22:42,064 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:22:42,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c [2018-07-23 22:22:42,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd9a4801/cdea8e2c51bf4556aa47363b2714efb1/FLAGe96a21bdb [2018-07-23 22:22:42,974 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:22:42,975 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c [2018-07-23 22:22:43,011 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd9a4801/cdea8e2c51bf4556aa47363b2714efb1/FLAGe96a21bdb [2018-07-23 22:22:43,028 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd9a4801/cdea8e2c51bf4556aa47363b2714efb1 [2018-07-23 22:22:43,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:22:43,042 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:22:43,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:22:43,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:22:43,051 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:22:43,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:22:43" (1/1) ... [2018-07-23 22:22:43,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4f1318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:43, skipping insertion in model container [2018-07-23 22:22:43,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:22:43" (1/1) ... [2018-07-23 22:22:43,426 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:22:44,640 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:22:44,660 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:22:45,616 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:22:45,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45 WrapperNode [2018-07-23 22:22:45,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:22:45,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:22:45,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:22:45,941 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:22:45,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:46,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:46,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:22:46,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:22:46,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:22:46,341 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:22:47,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (1/1) ... [2018-07-23 22:22:47,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:22:47,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:22:47,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:22:47,624 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:22:47,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (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 22:22:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:22:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:22:47,699 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 [2018-07-23 22:22:47,699 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 [2018-07-23 22:22:47,700 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_output3 [2018-07-23 22:22:47,700 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_output3 [2018-07-23 22:22:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:22:47,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:22:47,700 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_output4 [2018-07-23 22:22:47,700 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_output4 [2018-07-23 22:22:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:22:47,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:22:47,701 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 [2018-07-23 22:22:47,701 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 [2018-07-23 22:23:05,354 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:23:05,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:23:05 BoogieIcfgContainer [2018-07-23 22:23:05,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:23:05,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:23:05,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:23:05,360 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:23:05,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:22:43" (1/3) ... [2018-07-23 22:23:05,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292e0297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:23:05, skipping insertion in model container [2018-07-23 22:23:05,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:22:45" (2/3) ... [2018-07-23 22:23:05,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292e0297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:23:05, skipping insertion in model container [2018-07-23 22:23:05,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:23:05" (3/3) ... [2018-07-23 22:23:05,363 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label31_true-unreach-call.c [2018-07-23 22:23:05,373 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:23:05,387 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:23:05,451 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:23:05,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:23:05,452 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:23:05,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:23:05,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:23:05,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:23:05,453 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:23:05,453 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:23:05,453 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:23:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-23 22:23:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 22:23:05,502 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:23:05,503 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] [2018-07-23 22:23:05,504 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]=== [2018-07-23 22:23:05,509 INFO L82 PathProgramCache]: Analyzing trace with hash 536695377, now seen corresponding path program 1 times [2018-07-23 22:23:05,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:23:05,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:23:05,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:23:05,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:23:05,566 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:23:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:23:05,997 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:23:06,103 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 22:23:06,106 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:23:06,107 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:23:06,107 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:23:06,113 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:23:06,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:23:06,129 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:23:06,131 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-23 22:23:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:23:17,660 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-07-23 22:23:17,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:23:17,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-07-23 22:23:17,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:23:17,702 INFO L225 Difference]: With dead ends: 3093 [2018-07-23 22:23:17,703 INFO L226 Difference]: Without dead ends: 1971 [2018-07-23 22:23:17,717 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:23:17,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-07-23 22:23:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-07-23 22:23:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-07-23 22:23:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-07-23 22:23:17,902 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 47 [2018-07-23 22:23:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:23:17,903 INFO L471 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-07-23 22:23:17,903 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:23:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-07-23 22:23:17,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 22:23:17,920 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:23:17,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:17,921 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]=== [2018-07-23 22:23:17,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1472528588, now seen corresponding path program 1 times [2018-07-23 22:23:17,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:23:17,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:23:17,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:23:17,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:23:17,924 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:23:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:23:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:23:18,425 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:23:18,425 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 22:23:18,425 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:23:18,427 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:23:18,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:23:18,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:23:18,428 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 7 states. [2018-07-23 22:23:49,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:23:49,319 INFO L93 Difference]: Finished difference Result 7400 states and 13849 transitions. [2018-07-23 22:23:49,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 22:23:49,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2018-07-23 22:23:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:23:49,361 INFO L225 Difference]: With dead ends: 7400 [2018-07-23 22:23:49,362 INFO L226 Difference]: Without dead ends: 5449 [2018-07-23 22:23:49,374 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 22:23:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2018-07-23 22:23:49,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5386. [2018-07-23 22:23:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5386 states. [2018-07-23 22:23:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 8252 transitions. [2018-07-23 22:23:49,550 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 8252 transitions. Word has length 130 [2018-07-23 22:23:49,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:23:49,551 INFO L471 AbstractCegarLoop]: Abstraction has 5386 states and 8252 transitions. [2018-07-23 22:23:49,551 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:23:49,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 8252 transitions. [2018-07-23 22:23:49,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 22:23:49,562 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:23:49,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:49,563 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]=== [2018-07-23 22:23:49,563 INFO L82 PathProgramCache]: Analyzing trace with hash -732136548, now seen corresponding path program 1 times [2018-07-23 22:23:49,563 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:23:49,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:23:49,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:23:49,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:23:49,569 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:23:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:23:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:23:49,882 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:23:49,882 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:23:49,882 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:23:49,883 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:23:49,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:23:49,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:23:49,883 INFO L87 Difference]: Start difference. First operand 5386 states and 8252 transitions. Second operand 5 states. [2018-07-23 22:24:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:24:07,678 INFO L93 Difference]: Finished difference Result 15819 states and 25171 transitions. [2018-07-23 22:24:07,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 22:24:07,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-07-23 22:24:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:24:07,727 INFO L225 Difference]: With dead ends: 15819 [2018-07-23 22:24:07,728 INFO L226 Difference]: Without dead ends: 10439 [2018-07-23 22:24:07,756 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:24:07,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2018-07-23 22:24:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 10430. [2018-07-23 22:24:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10430 states. [2018-07-23 22:24:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10430 states to 10430 states and 15585 transitions. [2018-07-23 22:24:08,027 INFO L78 Accepts]: Start accepts. Automaton has 10430 states and 15585 transitions. Word has length 137 [2018-07-23 22:24:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:24:08,028 INFO L471 AbstractCegarLoop]: Abstraction has 10430 states and 15585 transitions. [2018-07-23 22:24:08,028 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:24:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 10430 states and 15585 transitions. [2018-07-23 22:24:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-23 22:24:08,031 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:24:08,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:08,032 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]=== [2018-07-23 22:24:08,032 INFO L82 PathProgramCache]: Analyzing trace with hash 628843684, now seen corresponding path program 1 times [2018-07-23 22:24:08,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:24:08,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:24:08,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:24:08,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:24:08,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:24:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:24:08,311 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:24:08,480 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:24:08,480 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:24:08,480 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:24:08,480 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:24:08,481 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:24:08,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:24:08,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:24:08,482 INFO L87 Difference]: Start difference. First operand 10430 states and 15585 transitions. Second operand 6 states. [2018-07-23 22:24:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:24:19,639 INFO L93 Difference]: Finished difference Result 29753 states and 47982 transitions. [2018-07-23 22:24:19,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:24:19,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-07-23 22:24:19,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:24:19,748 INFO L225 Difference]: With dead ends: 29753 [2018-07-23 22:24:19,748 INFO L226 Difference]: Without dead ends: 19329 [2018-07-23 22:24:19,790 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 22:24:19,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19329 states. [2018-07-23 22:24:20,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19329 to 19190. [2018-07-23 22:24:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19190 states. [2018-07-23 22:24:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19190 states to 19190 states and 28217 transitions. [2018-07-23 22:24:20,313 INFO L78 Accepts]: Start accepts. Automaton has 19190 states and 28217 transitions. Word has length 157 [2018-07-23 22:24:20,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:24:20,314 INFO L471 AbstractCegarLoop]: Abstraction has 19190 states and 28217 transitions. [2018-07-23 22:24:20,314 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:24:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 19190 states and 28217 transitions. [2018-07-23 22:24:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-07-23 22:24:20,323 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:24:20,323 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 22:24:20,329 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]=== [2018-07-23 22:24:20,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1368829737, now seen corresponding path program 1 times [2018-07-23 22:24:20,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:24:20,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:24:20,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:24:20,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:24:20,331 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:24:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:24:20,642 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:24:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 80 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:24:21,057 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:24:21,057 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:24:21,058 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-07-23 22:24:21,061 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [522], [526], [530], [533], [534], [538], [542], [553], [557], [561], [565], [569], [573], [577], [581], [592], [596], [600], [604], [608], [612], [616], [620], [624], [628], [631], [1612], [3064], [3068], [3074], [3078], [3080], [4267], [4268], [4269], [4271], [4272] [2018-07-23 22:24:21,139 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:24:21,140 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:24:30,609 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:24:30,611 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-23 22:24:30,620 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:24:37,467 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 71.37% of their original sizes. [2018-07-23 22:24:37,467 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:24:38,016 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:24:38,017 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:24:38,017 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 22:24:38,018 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:24:38,018 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:24:38,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:24:38,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:24:38,019 INFO L87 Difference]: Start difference. First operand 19190 states and 28217 transitions. Second operand 7 states. [2018-07-23 22:25:01,787 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 22:26:25,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:26:25,913 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:26:25,919 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:26:25,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:26:25 BoogieIcfgContainer [2018-07-23 22:26:25,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:26:25,920 INFO L168 Benchmark]: Toolchain (without parser) took 222879.64 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -106.9 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-23 22:26:25,921 INFO L168 Benchmark]: CDTParser took 0.65 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 22:26:25,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2896.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-23 22:26:25,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 399.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:26:25,924 INFO L168 Benchmark]: Boogie Preprocessor took 1282.23 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 992.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:26:25,925 INFO L168 Benchmark]: RCFGBuilder took 17731.97 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 158.9 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 77.5 MB). Peak memory consumption was 752.1 MB. Max. memory is 7.1 GB. [2018-07-23 22:26:25,926 INFO L168 Benchmark]: TraceAbstraction took 200563.34 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 1.5 GB in the end (delta: 739.7 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-23 22:26:25,931 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 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 2896.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 399.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1282.23 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 992.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17731.97 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 158.9 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 77.5 MB). Peak memory consumption was 752.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200563.34 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 1.5 GB in the end (delta: 739.7 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 132). Cancelled while BasicCegarLoop was constructing difference of abstraction (19190states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (7476 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 200.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 179.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2041 SDtfs, 13933 SDslu, 2379 SDs, 0 SdLazy, 24473 SolverSat, 5957 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 147.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 259 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19190occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9956536736805794 AbsIntWeakeningRatio, 0.1210762331838565 AbsIntAvgWeakeningVarsNumRemoved, 1021.0358744394618 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 225 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 690 ConstructedInterpolants, 0 QuantifiedInterpolants, 353099 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 205/278 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/Problem13_label31_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-26-25-946.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label31_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-26-25-946.csv Completed graceful shutdown