java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 18:25:21,466 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 18:25:21,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 18:25:21,482 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 18:25:21,482 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 18:25:21,483 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 18:25:21,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 18:25:21,486 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 18:25:21,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 18:25:21,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 18:25:21,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 18:25:21,490 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 18:25:21,491 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 18:25:21,492 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 18:25:21,493 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 18:25:21,494 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 18:25:21,495 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 18:25:21,497 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 18:25:21,499 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 18:25:21,500 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 18:25:21,501 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 18:25:21,505 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 18:25:21,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 18:25:21,519 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 18:25:21,519 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 18:25:21,520 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 18:25:21,521 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 18:25:21,521 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 18:25:21,554 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 18:25:21,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 18:25:21,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 18:25:21,556 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 18:25:21,556 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 18:25:21,557 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 18:25:21,557 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 18:25:21,557 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 18:25:21,557 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 18:25:21,557 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 18:25:21,558 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 18:25:21,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 18:25:21,559 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 18:25:21,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 18:25:21,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 18:25:21,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 18:25:21,561 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 18:25:21,561 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 18:25:21,561 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 18:25:21,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 18:25:21,561 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 18:25:21,562 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 18:25:21,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 18:25:21,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:25:21,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 18:25:21,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 18:25:21,563 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 18:25:21,563 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 18:25:21,563 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 18:25:21,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 18:25:21,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 18:25:21,564 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 18:25:21,564 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 18:25:21,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 18:25:21,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 18:25:21,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 18:25:21,651 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 18:25:21,651 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 18:25:21,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50_false-unreach-call_false-termination.c [2018-07-23 18:25:22,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a032abc/4a670436084148f0a22052373eb8be53/FLAG574422817 [2018-07-23 18:25:22,309 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 18:25:22,310 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label50_false-unreach-call_false-termination.c [2018-07-23 18:25:22,332 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a032abc/4a670436084148f0a22052373eb8be53/FLAG574422817 [2018-07-23 18:25:22,355 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a032abc/4a670436084148f0a22052373eb8be53 [2018-07-23 18:25:22,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 18:25:22,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 18:25:22,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 18:25:22,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 18:25:22,386 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 18:25:22,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:25:22" (1/1) ... [2018-07-23 18:25:22,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d1bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:22, skipping insertion in model container [2018-07-23 18:25:22,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:25:22" (1/1) ... [2018-07-23 18:25:22,605 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 18:25:22,882 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:25:22,900 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 18:25:23,024 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:25:23,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23 WrapperNode [2018-07-23 18:25:23,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 18:25:23,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 18:25:23,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 18:25:23,068 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 18:25:23,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 18:25:23,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 18:25:23,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 18:25:23,174 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 18:25:23,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (1/1) ... [2018-07-23 18:25:23,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 18:25:23,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 18:25:23,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 18:25:23,416 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 18:25:23,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (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 18:25:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 18:25:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 18:25:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 18:25:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 18:25:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 18:25:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 18:25:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 18:25:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 18:25:27,287 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 18:25:27,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:25:27 BoogieIcfgContainer [2018-07-23 18:25:27,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 18:25:27,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 18:25:27,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 18:25:27,299 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 18:25:27,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:25:22" (1/3) ... [2018-07-23 18:25:27,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd2d9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:25:27, skipping insertion in model container [2018-07-23 18:25:27,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:25:23" (2/3) ... [2018-07-23 18:25:27,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd2d9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:25:27, skipping insertion in model container [2018-07-23 18:25:27,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:25:27" (3/3) ... [2018-07-23 18:25:27,305 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label50_false-unreach-call_false-termination.c [2018-07-23 18:25:27,319 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 18:25:27,334 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 18:25:27,388 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 18:25:27,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 18:25:27,389 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 18:25:27,390 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 18:25:27,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 18:25:27,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 18:25:27,390 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 18:25:27,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 18:25:27,391 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 18:25:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-23 18:25:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 18:25:27,431 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:25:27,433 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:25:27,433 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:25:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash 117288856, now seen corresponding path program 1 times [2018-07-23 18:25:27,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:25:27,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:27,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:25:27,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:27,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:25:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:25:28,015 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 18:25:28,144 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 18:25:28,146 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:25:28,147 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:25:28,147 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:25:28,154 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:25:28,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:25:28,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:25:28,175 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-23 18:25:29,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:25:29,558 INFO L93 Difference]: Finished difference Result 621 states and 1059 transitions. [2018-07-23 18:25:29,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:25:29,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2018-07-23 18:25:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:25:29,581 INFO L225 Difference]: With dead ends: 621 [2018-07-23 18:25:29,582 INFO L226 Difference]: Without dead ends: 382 [2018-07-23 18:25:29,589 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:25:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-07-23 18:25:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-07-23 18:25:29,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-07-23 18:25:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 608 transitions. [2018-07-23 18:25:29,672 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 608 transitions. Word has length 88 [2018-07-23 18:25:29,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:25:29,673 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 608 transitions. [2018-07-23 18:25:29,673 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:25:29,673 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 608 transitions. [2018-07-23 18:25:29,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 18:25:29,680 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:25:29,680 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] [2018-07-23 18:25:29,680 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:25:29,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1068828989, now seen corresponding path program 1 times [2018-07-23 18:25:29,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:25:29,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:29,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:25:29,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:29,683 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:25:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:25:29,911 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 18:25:29,912 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:25:29,912 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:25:29,912 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:25:29,915 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:25:29,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:25:29,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:25:29,916 INFO L87 Difference]: Start difference. First operand 382 states and 608 transitions. Second operand 3 states. [2018-07-23 18:25:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:25:31,175 INFO L93 Difference]: Finished difference Result 1049 states and 1735 transitions. [2018-07-23 18:25:31,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:25:31,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2018-07-23 18:25:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:25:31,184 INFO L225 Difference]: With dead ends: 1049 [2018-07-23 18:25:31,184 INFO L226 Difference]: Without dead ends: 673 [2018-07-23 18:25:31,189 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:25:31,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2018-07-23 18:25:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2018-07-23 18:25:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2018-07-23 18:25:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1035 transitions. [2018-07-23 18:25:31,240 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1035 transitions. Word has length 97 [2018-07-23 18:25:31,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:25:31,241 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 1035 transitions. [2018-07-23 18:25:31,241 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:25:31,241 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1035 transitions. [2018-07-23 18:25:31,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 18:25:31,247 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:25:31,248 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:25:31,248 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:25:31,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1510465158, now seen corresponding path program 1 times [2018-07-23 18:25:31,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:25:31,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:31,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:25:31,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:31,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:25:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:25:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:25:31,472 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:25:31,472 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 18:25:31,472 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:25:31,473 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 18:25:31,473 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 18:25:31,473 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 18:25:31,474 INFO L87 Difference]: Start difference. First operand 673 states and 1035 transitions. Second operand 6 states. [2018-07-23 18:25:34,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:25:34,535 INFO L93 Difference]: Finished difference Result 2121 states and 3416 transitions. [2018-07-23 18:25:34,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 18:25:34,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-07-23 18:25:34,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:25:34,554 INFO L225 Difference]: With dead ends: 2121 [2018-07-23 18:25:34,554 INFO L226 Difference]: Without dead ends: 1454 [2018-07-23 18:25:34,559 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 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 18:25:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2018-07-23 18:25:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1418. [2018-07-23 18:25:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2018-07-23 18:25:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2128 transitions. [2018-07-23 18:25:34,643 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2128 transitions. Word has length 111 [2018-07-23 18:25:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:25:34,645 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2128 transitions. [2018-07-23 18:25:34,645 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 18:25:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2128 transitions. [2018-07-23 18:25:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 18:25:34,658 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:25:34,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:34,658 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:25:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash -607489170, now seen corresponding path program 1 times [2018-07-23 18:25:34,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:25:34,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:34,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:25:34,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:34,662 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:25:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:25:34,944 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 18:25:35,256 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:25:35,257 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:25:35,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 18:25:35,257 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:25:35,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 18:25:35,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 18:25:35,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 18:25:35,259 INFO L87 Difference]: Start difference. First operand 1418 states and 2128 transitions. Second operand 6 states. [2018-07-23 18:25:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:25:37,153 INFO L93 Difference]: Finished difference Result 3715 states and 5656 transitions. [2018-07-23 18:25:37,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 18:25:37,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-07-23 18:25:37,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:25:37,181 INFO L225 Difference]: With dead ends: 3715 [2018-07-23 18:25:37,182 INFO L226 Difference]: Without dead ends: 2303 [2018-07-23 18:25:37,191 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 18:25:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2018-07-23 18:25:37,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2276. [2018-07-23 18:25:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2276 states. [2018-07-23 18:25:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2276 states to 2276 states and 3246 transitions. [2018-07-23 18:25:37,287 INFO L78 Accepts]: Start accepts. Automaton has 2276 states and 3246 transitions. Word has length 117 [2018-07-23 18:25:37,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:25:37,287 INFO L471 AbstractCegarLoop]: Abstraction has 2276 states and 3246 transitions. [2018-07-23 18:25:37,287 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 18:25:37,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2276 states and 3246 transitions. [2018-07-23 18:25:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 18:25:37,294 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:25:37,295 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 18:25:37,295 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:25:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1039448065, now seen corresponding path program 1 times [2018-07-23 18:25:37,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:25:37,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:37,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:25:37,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:25:37,297 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:25:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:25:37,724 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:25:37,725 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:25:37,725 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:25:37,726 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 126 with the following transitions: [2018-07-23 18:25:37,728 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [77], [88], [92], [96], [99], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [195], [199], [203], [207], [211], [215], [219], [223], [234], [238], [242], [246], [257], [261], [265], [269], [273], [277], [281], [292], [296], [307], [311], [322], [333], [337], [341], [345], [349], [353], [357], [368], [372], [376], [380], [384], [388], [392], [396], [399], [401], [887], [888], [889], [890], [892], [893] [2018-07-23 18:25:37,796 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:25:37,797 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:27:12,421 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 18:27:12,423 INFO L272 AbstractInterpreter]: Visited 92 different actions 268 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-07-23 18:27:12,433 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 18:27:18,463 INFO L232 lantSequenceWeakener]: Weakened 123 states. On average, predicates are now at 80.51% of their original sizes. [2018-07-23 18:27:18,464 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 18:27:20,708 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 18:27:20,709 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 18:27:20,710 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [9] total 21 [2018-07-23 18:27:20,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:27:20,710 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 18:27:20,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 18:27:20,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-07-23 18:27:20,712 INFO L87 Difference]: Start difference. First operand 2276 states and 3246 transitions. Second operand 14 states. [2018-07-23 18:27:22,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 18:27:22,492 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__a25~0. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:148) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:86) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:370) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:141) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:127) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:309) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:443) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:641) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:570) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 18:27:22,498 INFO L168 Benchmark]: Toolchain (without parser) took 120121.33 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 738.1 MB. Max. memory is 7.1 GB. [2018-07-23 18:27:22,499 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:27:22,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.50 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 18:27:22,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.57 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:27:22,501 INFO L168 Benchmark]: Boogie Preprocessor took 241.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -812.4 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2018-07-23 18:27:22,502 INFO L168 Benchmark]: RCFGBuilder took 3872.40 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2018-07-23 18:27:22,503 INFO L168 Benchmark]: TraceAbstraction took 115207.78 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 670.2 MB. Max. memory is 7.1 GB. [2018-07-23 18:27:22,508 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.50 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 105.57 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 241.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -812.4 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3872.40 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 115207.78 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 670.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__a25~0. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable ~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__a25~0.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:148) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label50_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_18-27-22-523.csv Received shutdown request...