java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 07:26:14,324 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 07:26:14,327 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 07:26:14,339 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 07:26:14,339 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 07:26:14,340 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 07:26:14,341 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 07:26:14,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 07:26:14,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 07:26:14,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 07:26:14,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 07:26:14,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 07:26:14,353 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 07:26:14,354 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 07:26:14,355 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 07:26:14,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 07:26:14,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 07:26:14,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 07:26:14,360 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 07:26:14,361 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 07:26:14,362 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 07:26:14,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 07:26:14,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 07:26:14,373 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 07:26:14,388 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 07:26:14,388 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 07:26:14,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 07:26:14,389 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 07:26:14,390 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 07:26:14,390 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 07:26:14,390 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 07:26:14,390 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 07:26:14,390 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 07:26:14,390 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 07:26:14,391 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 07:26:14,391 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 07:26:14,392 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 07:26:14,392 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 07:26:14,392 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 07:26:14,392 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 07:26:14,392 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 07:26:14,393 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 07:26:14,393 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 07:26:14,393 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 07:26:14,393 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 07:26:14,393 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 07:26:14,394 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 07:26:14,394 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 07:26:14,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 07:26:14,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 07:26:14,394 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 07:26:14,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 07:26:14,395 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 07:26:14,395 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 07:26:14,395 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 07:26:14,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 07:26:14,395 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 07:26:14,396 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 07:26:14,396 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 07:26:14,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 07:26:14,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 07:26:14,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 07:26:14,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 07:26:14,482 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 07:26:14,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05_true-unreach-call_false-termination.c [2018-07-21 07:26:14,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/13f11138c/e1f057c9394747fa98e9869e63303904/FLAGd2d7034f8 [2018-07-21 07:26:15,149 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 07:26:15,150 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05_true-unreach-call_false-termination.c [2018-07-21 07:26:15,180 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/13f11138c/e1f057c9394747fa98e9869e63303904/FLAGd2d7034f8 [2018-07-21 07:26:15,204 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/13f11138c/e1f057c9394747fa98e9869e63303904 [2018-07-21 07:26:15,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 07:26:15,223 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 07:26:15,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 07:26:15,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 07:26:15,235 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 07:26:15,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:15,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708af1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15, skipping insertion in model container [2018-07-21 07:26:15,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:15,438 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 07:26:15,744 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:26:15,761 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 07:26:15,933 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:26:15,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15 WrapperNode [2018-07-21 07:26:15,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 07:26:15,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 07:26:15,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 07:26:15,989 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 07:26:16,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 07:26:16,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 07:26:16,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 07:26:16,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 07:26:16,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... [2018-07-21 07:26:16,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 07:26:16,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 07:26:16,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 07:26:16,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 07:26:16,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 07:26:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 07:26:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 07:26:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 07:26:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 07:26:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 07:26:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 07:26:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 07:26:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 07:26:20,490 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 07:26:20,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:26:20 BoogieIcfgContainer [2018-07-21 07:26:20,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 07:26:20,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 07:26:20,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 07:26:20,498 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 07:26:20,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:26:15" (1/3) ... [2018-07-21 07:26:20,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b04b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:26:20, skipping insertion in model container [2018-07-21 07:26:20,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:26:15" (2/3) ... [2018-07-21 07:26:20,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b04b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:26:20, skipping insertion in model container [2018-07-21 07:26:20,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:26:20" (3/3) ... [2018-07-21 07:26:20,505 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label05_true-unreach-call_false-termination.c [2018-07-21 07:26:20,522 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 07:26:20,533 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 07:26:20,590 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 07:26:20,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 07:26:20,591 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 07:26:20,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 07:26:20,591 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 07:26:20,591 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 07:26:20,592 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 07:26:20,592 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 07:26:20,592 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 07:26:20,625 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-21 07:26:20,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-21 07:26:20,644 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:26:20,647 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:26:20,648 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:26:20,656 INFO L82 PathProgramCache]: Analyzing trace with hash -782709097, now seen corresponding path program 1 times [2018-07-21 07:26:20,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:26:20,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:20,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:26:20,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:20,722 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:26:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:26:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:26:21,569 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:26:21,569 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 07:26:21,570 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:26:21,574 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 07:26:21,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 07:26:21,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:26:21,602 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-21 07:26:22,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:26:22,987 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-07-21 07:26:22,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 07:26:22,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2018-07-21 07:26:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:26:23,011 INFO L225 Difference]: With dead ends: 627 [2018-07-21 07:26:23,011 INFO L226 Difference]: Without dead ends: 388 [2018-07-21 07:26:23,017 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:26:23,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-07-21 07:26:23,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-07-21 07:26:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-07-21 07:26:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-07-21 07:26:23,109 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 133 [2018-07-21 07:26:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:26:23,110 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-07-21 07:26:23,110 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 07:26:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-07-21 07:26:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-21 07:26:23,119 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:26:23,119 INFO L358 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] [2018-07-21 07:26:23,120 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:26:23,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1001431126, now seen corresponding path program 1 times [2018-07-21 07:26:23,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:26:23,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:23,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:26:23,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:23,124 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:26:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:26:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:26:23,563 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:26:23,563 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 07:26:23,563 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:26:23,566 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 07:26:23,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 07:26:23,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:26:23,567 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 6 states. [2018-07-21 07:26:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:26:25,243 INFO L93 Difference]: Finished difference Result 1053 states and 1766 transitions. [2018-07-21 07:26:25,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 07:26:25,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-07-21 07:26:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:26:25,251 INFO L225 Difference]: With dead ends: 1053 [2018-07-21 07:26:25,251 INFO L226 Difference]: Without dead ends: 381 [2018-07-21 07:26:25,263 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:26:25,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-07-21 07:26:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-07-21 07:26:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-07-21 07:26:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 607 transitions. [2018-07-21 07:26:25,303 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 607 transitions. Word has length 142 [2018-07-21 07:26:25,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:26:25,304 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 607 transitions. [2018-07-21 07:26:25,304 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 07:26:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 607 transitions. [2018-07-21 07:26:25,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-21 07:26:25,308 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:26:25,309 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:26:25,310 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:26:25,310 INFO L82 PathProgramCache]: Analyzing trace with hash 702800942, now seen corresponding path program 1 times [2018-07-21 07:26:25,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:26:25,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:25,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:26:25,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:25,312 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:26:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:26:25,597 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 07:26:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:26:25,670 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:26:25,674 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 07:26:25,674 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:26:25,675 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 07:26:25,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 07:26:25,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 07:26:25,675 INFO L87 Difference]: Start difference. First operand 381 states and 607 transitions. Second operand 5 states. [2018-07-21 07:26:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:26:27,673 INFO L93 Difference]: Finished difference Result 761 states and 1228 transitions. [2018-07-21 07:26:27,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 07:26:27,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-07-21 07:26:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:26:27,681 INFO L225 Difference]: With dead ends: 761 [2018-07-21 07:26:27,681 INFO L226 Difference]: Without dead ends: 386 [2018-07-21 07:26:27,683 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:26:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-07-21 07:26:27,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 371. [2018-07-21 07:26:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-07-21 07:26:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 566 transitions. [2018-07-21 07:26:27,733 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 566 transitions. Word has length 144 [2018-07-21 07:26:27,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:26:27,733 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 566 transitions. [2018-07-21 07:26:27,733 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 07:26:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 566 transitions. [2018-07-21 07:26:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-21 07:26:27,737 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:26:27,738 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:26:27,738 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:26:27,738 INFO L82 PathProgramCache]: Analyzing trace with hash 744245598, now seen corresponding path program 1 times [2018-07-21 07:26:27,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:26:27,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:27,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:26:27,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:26:27,741 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:26:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:26:28,126 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-07-21 07:26:28,481 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-21 07:26:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:26:28,592 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:26:28,592 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:26:28,593 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-07-21 07:26:28,595 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [735], [737], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 07:26:28,693 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:26:28,693 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 07:27:54,321 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 07:27:54,323 INFO L272 AbstractInterpreter]: Visited 136 different actions 197 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-07-21 07:27:54,337 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 07:28:13,391 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 81.34% of their original sizes. [2018-07-21 07:28:13,392 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 07:28:40,961 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 07:28:40,962 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 07:28:40,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [7] total 30 [2018-07-21 07:28:40,962 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:28:40,963 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-21 07:28:40,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-21 07:28:40,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2018-07-21 07:28:40,964 INFO L87 Difference]: Start difference. First operand 371 states and 566 transitions. Second operand 25 states. [2018-07-21 07:29:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:29:21,476 INFO L93 Difference]: Finished difference Result 1357 states and 2152 transitions. [2018-07-21 07:29:21,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-21 07:29:21,476 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 147 [2018-07-21 07:29:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:29:21,483 INFO L225 Difference]: With dead ends: 1357 [2018-07-21 07:29:21,483 INFO L226 Difference]: Without dead ends: 992 [2018-07-21 07:29:21,487 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 49 SyntacticMatches, 74 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2077 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=495, Invalid=1667, Unknown=0, NotChecked=0, Total=2162 [2018-07-21 07:29:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2018-07-21 07:29:21,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 973. [2018-07-21 07:29:21,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-07-21 07:29:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1248 transitions. [2018-07-21 07:29:21,548 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1248 transitions. Word has length 147 [2018-07-21 07:29:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:29:21,549 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1248 transitions. [2018-07-21 07:29:21,549 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-21 07:29:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1248 transitions. [2018-07-21 07:29:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-21 07:29:21,556 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:29:21,556 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:29:21,557 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:29:21,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1152772973, now seen corresponding path program 1 times [2018-07-21 07:29:21,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:29:21,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:29:21,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:29:21,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:29:21,560 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:29:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:29:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-21 07:29:22,575 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:29:22,575 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:29:22,575 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-07-21 07:29:22,577 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [735], [737], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 07:29:22,588 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:29:22,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 07:30:25,076 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 07:30:25,077 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 07:30:25,078 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 07:30:25,078 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:30:25,078 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 07:30:25,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:30:25,089 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 07:30:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:30:25,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 07:30:25,250 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 07:30:25,452 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 07:30:25,452 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 07:30:25,456 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 07:30:25,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 07:30:25 BoogieIcfgContainer [2018-07-21 07:30:25,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 07:30:25,457 INFO L168 Benchmark]: Toolchain (without parser) took 250240.18 ms. Allocated memory was 304.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 250.0 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 356.2 MB. Max. memory is 5.3 GB. [2018-07-21 07:30:25,458 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 07:30:25,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.63 ms. Allocated memory is still 304.6 MB. Free memory was 249.0 MB in the beginning and 216.0 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 5.3 GB. [2018-07-21 07:30:25,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.85 ms. Allocated memory is still 304.6 MB. Free memory was 216.0 MB in the beginning and 209.5 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 5.3 GB. [2018-07-21 07:30:25,460 INFO L168 Benchmark]: Boogie Preprocessor took 140.04 ms. Allocated memory is still 304.6 MB. Free memory was 209.5 MB in the beginning and 205.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:30:25,460 INFO L168 Benchmark]: RCFGBuilder took 4207.08 ms. Allocated memory was 304.6 MB in the beginning and 471.9 MB in the end (delta: 167.2 MB). Free memory was 205.5 MB in the beginning and 329.9 MB in the end (delta: -124.4 MB). Peak memory consumption was 59.1 MB. Max. memory is 5.3 GB. [2018-07-21 07:30:25,461 INFO L168 Benchmark]: TraceAbstraction took 244964.16 ms. Allocated memory was 471.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 329.9 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 268.9 MB. Max. memory is 5.3 GB. [2018-07-21 07:30:25,464 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 759.63 ms. Allocated memory is still 304.6 MB. Free memory was 249.0 MB in the beginning and 216.0 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 154.85 ms. Allocated memory is still 304.6 MB. Free memory was 216.0 MB in the beginning and 209.5 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 140.04 ms. Allocated memory is still 304.6 MB. Free memory was 209.5 MB in the beginning and 205.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 4207.08 ms. Allocated memory was 304.6 MB in the beginning and 471.9 MB in the end (delta: 167.2 MB). Free memory was 205.5 MB in the beginning and 329.9 MB in the end (delta: -124.4 MB). Peak memory consumption was 59.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 244964.16 ms. Allocated memory was 471.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 329.9 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 268.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 550]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 550). Cancelled while BasicCegarLoop was analyzing trace of length 185 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 244.8s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 45.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 580 SDtfs, 3396 SDslu, 1007 SDs, 0 SdLazy, 4073 SolverSat, 711 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 188 GetRequests, 57 SyntacticMatches, 77 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2077 ImplicationChecksByTransitivity, 31.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=973occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 148.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9947534051715741 AbsIntWeakeningRatio, 0.18493150684931506 AbsIntAvgWeakeningVarsNumRemoved, 62.23287671232877 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 562 ConstructedInterpolants, 0 QuantifiedInterpolants, 402609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 14/25 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label05_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_07-30-25-478.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label05_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_07-30-25-478.csv Completed graceful shutdown