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/Problem11_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:16:09,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:16:09,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:16:09,574 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:16:09,574 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:16:09,575 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:16:09,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:16:09,578 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:16:09,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:16:09,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:16:09,582 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:16:09,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:16:09,583 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:16:09,584 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:16:09,585 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:16:09,586 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:16:09,587 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:16:09,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:16:09,591 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:16:09,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:16:09,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:16:09,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:16:09,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:16:09,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:16:09,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:16:09,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:16:09,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:16:09,600 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:16:09,601 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:16:09,602 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:16:09,602 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:16:09,602 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:16:09,603 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:16:09,603 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:16:09,604 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:16:09,604 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:16:09,605 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 19:16:09,631 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:16:09,632 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:16:09,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:16:09,633 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:16:09,633 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:16:09,633 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:16:09,633 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:16:09,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:16:09,633 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:16:09,634 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:16:09,634 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:16:09,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:16:09,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:16:09,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:16:09,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:16:09,635 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:16:09,635 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:16:09,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:16:09,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:16:09,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:16:09,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:16:09,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:16:09,637 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:16:09,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:16:09,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:16:09,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:16:09,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:16:09,638 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:16:09,638 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:16:09,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:16:09,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:16:09,638 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:16:09,638 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:16:09,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:16:09,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:16:09,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:16:09,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:16:09,705 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:16:09,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-07-23 19:16:10,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f2fbb360/714704a44bbe4737b4be59b81ccd2a74/FLAG603e3d56e [2018-07-23 19:16:10,405 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:16:10,409 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-07-23 19:16:10,439 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f2fbb360/714704a44bbe4737b4be59b81ccd2a74/FLAG603e3d56e [2018-07-23 19:16:10,455 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f2fbb360/714704a44bbe4737b4be59b81ccd2a74 [2018-07-23 19:16:10,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:16:10,470 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:16:10,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:16:10,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:16:10,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:16:10,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:16:10" (1/1) ... [2018-07-23 19:16:10,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc273cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:10, skipping insertion in model container [2018-07-23 19:16:10,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:16:10" (1/1) ... [2018-07-23 19:16:10,704 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:16:11,129 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:16:11,147 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:16:11,281 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:16:11,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11 WrapperNode [2018-07-23 19:16:11,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:16:11,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:16:11,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:16:11,346 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:16:11,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:16:11,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:16:11,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:16:11,486 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:16:11,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (1/1) ... [2018-07-23 19:16:11,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:16:11,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:16:11,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:16:11,863 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:16:11,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (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 19:16:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:16:11,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:16:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:16:11,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:16:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:16:11,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:16:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:16:11,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:16:16,388 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:16:16,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:16:16 BoogieIcfgContainer [2018-07-23 19:16:16,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:16:16,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:16:16,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:16:16,401 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:16:16,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:16:10" (1/3) ... [2018-07-23 19:16:16,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4f4522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:16:16, skipping insertion in model container [2018-07-23 19:16:16,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:16:11" (2/3) ... [2018-07-23 19:16:16,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4f4522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:16:16, skipping insertion in model container [2018-07-23 19:16:16,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:16:16" (3/3) ... [2018-07-23 19:16:16,410 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label00_false-unreach-call.c [2018-07-23 19:16:16,421 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:16:16,430 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:16:16,485 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:16:16,486 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:16:16,486 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:16:16,487 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:16:16,487 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:16:16,487 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:16:16,487 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:16:16,487 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:16:16,488 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:16:16,520 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-07-23 19:16:16,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 19:16:16,533 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:16,534 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:16,535 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:16,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1609080513, now seen corresponding path program 1 times [2018-07-23 19:16:16,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:16,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:16,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:16,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:16,591 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:16,804 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:16:16,804 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:16:16,804 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:16,810 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:16:16,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:16:16,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:16:16,828 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-07-23 19:16:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:19,197 INFO L93 Difference]: Finished difference Result 783 states and 1371 transitions. [2018-07-23 19:16:19,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:16:19,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-07-23 19:16:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:19,221 INFO L225 Difference]: With dead ends: 783 [2018-07-23 19:16:19,222 INFO L226 Difference]: Without dead ends: 488 [2018-07-23 19:16:19,231 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 19:16:19,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-07-23 19:16:19,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2018-07-23 19:16:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-07-23 19:16:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 737 transitions. [2018-07-23 19:16:19,315 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 737 transitions. Word has length 13 [2018-07-23 19:16:19,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:19,316 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 737 transitions. [2018-07-23 19:16:19,316 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:16:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 737 transitions. [2018-07-23 19:16:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 19:16:19,321 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:19,321 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:19,321 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:19,322 INFO L82 PathProgramCache]: Analyzing trace with hash 631137051, now seen corresponding path program 1 times [2018-07-23 19:16:19,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:19,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:19,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:19,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:19,323 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:19,759 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:16:19,759 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:16:19,759 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:19,761 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:16:19,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:16:19,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:16:19,762 INFO L87 Difference]: Start difference. First operand 488 states and 737 transitions. Second operand 6 states. [2018-07-23 19:16:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:24,048 INFO L93 Difference]: Finished difference Result 1564 states and 2506 transitions. [2018-07-23 19:16:24,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:16:24,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2018-07-23 19:16:24,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:24,061 INFO L225 Difference]: With dead ends: 1564 [2018-07-23 19:16:24,061 INFO L226 Difference]: Without dead ends: 1082 [2018-07-23 19:16:24,065 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 19:16:24,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2018-07-23 19:16:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1070. [2018-07-23 19:16:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2018-07-23 19:16:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1603 transitions. [2018-07-23 19:16:24,132 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1603 transitions. Word has length 86 [2018-07-23 19:16:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:24,132 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1603 transitions. [2018-07-23 19:16:24,133 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:16:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1603 transitions. [2018-07-23 19:16:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 19:16:24,139 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:24,139 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:24,139 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:24,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1805064348, now seen corresponding path program 1 times [2018-07-23 19:16:24,140 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:24,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:24,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:24,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:24,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:24,307 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:16:24,307 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:16:24,307 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:24,308 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:16:24,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:16:24,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:16:24,309 INFO L87 Difference]: Start difference. First operand 1070 states and 1603 transitions. Second operand 3 states. [2018-07-23 19:16:26,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:26,662 INFO L93 Difference]: Finished difference Result 2535 states and 3860 transitions. [2018-07-23 19:16:26,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:16:26,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2018-07-23 19:16:26,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:26,673 INFO L225 Difference]: With dead ends: 2535 [2018-07-23 19:16:26,673 INFO L226 Difference]: Without dead ends: 1471 [2018-07-23 19:16:26,678 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 19:16:26,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2018-07-23 19:16:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1461. [2018-07-23 19:16:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2018-07-23 19:16:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2109 transitions. [2018-07-23 19:16:26,723 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2109 transitions. Word has length 87 [2018-07-23 19:16:26,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:26,724 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2109 transitions. [2018-07-23 19:16:26,724 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:16:26,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2109 transitions. [2018-07-23 19:16:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 19:16:26,726 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:26,726 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:26,727 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:26,727 INFO L82 PathProgramCache]: Analyzing trace with hash 944234047, now seen corresponding path program 1 times [2018-07-23 19:16:26,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:26,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:26,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:26,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:26,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:26,844 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:16:26,844 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:16:26,844 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:26,845 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:16:26,845 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:16:26,845 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:16:26,846 INFO L87 Difference]: Start difference. First operand 1461 states and 2109 transitions. Second operand 3 states. [2018-07-23 19:16:29,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:29,103 INFO L93 Difference]: Finished difference Result 3308 states and 4868 transitions. [2018-07-23 19:16:29,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:16:29,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2018-07-23 19:16:29,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:29,123 INFO L225 Difference]: With dead ends: 3308 [2018-07-23 19:16:29,123 INFO L226 Difference]: Without dead ends: 1853 [2018-07-23 19:16:29,130 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 19:16:29,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2018-07-23 19:16:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1847. [2018-07-23 19:16:29,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2018-07-23 19:16:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2612 transitions. [2018-07-23 19:16:29,185 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2612 transitions. Word has length 88 [2018-07-23 19:16:29,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:29,186 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2612 transitions. [2018-07-23 19:16:29,186 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:16:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2612 transitions. [2018-07-23 19:16:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-23 19:16:29,188 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:29,189 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:29,189 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:29,192 INFO L82 PathProgramCache]: Analyzing trace with hash -230719573, now seen corresponding path program 1 times [2018-07-23 19:16:29,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:29,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:29,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:29,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:29,193 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:29,361 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:16:29,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:16:29,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:29,362 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:16:29,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:16:29,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:16:29,363 INFO L87 Difference]: Start difference. First operand 1847 states and 2612 transitions. Second operand 6 states. [2018-07-23 19:16:36,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:36,025 INFO L93 Difference]: Finished difference Result 6013 states and 8876 transitions. [2018-07-23 19:16:36,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:16:36,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-07-23 19:16:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:36,049 INFO L225 Difference]: With dead ends: 6013 [2018-07-23 19:16:36,050 INFO L226 Difference]: Without dead ends: 4172 [2018-07-23 19:16:36,061 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:16:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2018-07-23 19:16:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 4107. [2018-07-23 19:16:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2018-07-23 19:16:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5492 transitions. [2018-07-23 19:16:36,173 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5492 transitions. Word has length 94 [2018-07-23 19:16:36,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:36,174 INFO L471 AbstractCegarLoop]: Abstraction has 4107 states and 5492 transitions. [2018-07-23 19:16:36,174 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:16:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5492 transitions. [2018-07-23 19:16:36,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 19:16:36,176 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:36,177 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:36,177 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:36,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1367743065, now seen corresponding path program 1 times [2018-07-23 19:16:36,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:36,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:36,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:36,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:36,178 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:36,536 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:16:36,536 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 19:16:36,536 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:36,536 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:16:36,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:16:36,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:16:36,537 INFO L87 Difference]: Start difference. First operand 4107 states and 5492 transitions. Second operand 7 states. [2018-07-23 19:16:43,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:43,327 INFO L93 Difference]: Finished difference Result 9565 states and 13475 transitions. [2018-07-23 19:16:43,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 19:16:43,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2018-07-23 19:16:43,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:43,371 INFO L225 Difference]: With dead ends: 9565 [2018-07-23 19:16:43,371 INFO L226 Difference]: Without dead ends: 5269 [2018-07-23 19:16:43,395 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-23 19:16:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2018-07-23 19:16:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 4935. [2018-07-23 19:16:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4935 states. [2018-07-23 19:16:43,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6612 transitions. [2018-07-23 19:16:43,545 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6612 transitions. Word has length 108 [2018-07-23 19:16:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:43,545 INFO L471 AbstractCegarLoop]: Abstraction has 4935 states and 6612 transitions. [2018-07-23 19:16:43,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:16:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6612 transitions. [2018-07-23 19:16:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 19:16:43,548 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:43,548 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:43,549 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:43,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2030942725, now seen corresponding path program 1 times [2018-07-23 19:16:43,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:43,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:43,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:43,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:43,552 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:44,355 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:16:44,356 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:16:44,357 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-07-23 19:16:44,359 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [31], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [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], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [701], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [786], [790], [793], [796], [800], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-23 19:16:44,426 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:16:44,427 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:18:37,079 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:18:37,083 INFO L272 AbstractInterpreter]: Visited 139 different actions 272 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-07-23 19:18:37,108 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:19:15,740 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 73.02% of their original sizes. [2018-07-23 19:19:15,741 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:19:17,142 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:19:17,143 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:19:17,143 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2018-07-23 19:19:17,144 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:19:17,144 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 19:19:17,145 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 19:19:17,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-07-23 19:19:17,145 INFO L87 Difference]: Start difference. First operand 4935 states and 6612 transitions. Second operand 13 states. [2018-07-23 19:19:56,210 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 19:20:14,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:20:14,839 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:20:14,845 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:20:14,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:20:14 BoogieIcfgContainer [2018-07-23 19:20:14,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:20:14,847 INFO L168 Benchmark]: Toolchain (without parser) took 244378.17 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 371.0 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-23 19:20:14,849 INFO L168 Benchmark]: CDTParser took 0.21 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 19:20:14,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 875.07 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:20:14,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.60 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:20:14,851 INFO L168 Benchmark]: Boogie Preprocessor took 376.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 841.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -955.8 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:20:14,852 INFO L168 Benchmark]: RCFGBuilder took 4525.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 199.0 MB). Peak memory consumption was 199.0 MB. Max. memory is 7.1 GB. [2018-07-23 19:20:14,853 INFO L168 Benchmark]: TraceAbstraction took 238456.29 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-23 19:20:14,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 875.07 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 139.60 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 376.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 841.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -955.8 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4525.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 199.0 MB). Peak memory consumption was 199.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238456.29 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 24]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 24). Cancelled while BasicCegarLoop was constructing difference of abstraction (4935states) and interpolant automaton (currently 13 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (231 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 238.3s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 82.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1581 SDtfs, 4463 SDslu, 891 SDs, 0 SdLazy, 7993 SolverSat, 1459 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 69.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 198 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4935occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 112.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9937536743092301 AbsIntWeakeningRatio, 0.1597222222222222 AbsIntAvgWeakeningVarsNumRemoved, 49.076388888888886 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 427 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 614 ConstructedInterpolants, 0 QuantifiedInterpolants, 461325 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 30/36 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/Problem11_label00_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-20-14-872.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label00_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-20-14-872.csv Completed graceful shutdown