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/Problem03_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-20 22:35:08,917 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-20 22:35:08,919 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-20 22:35:08,939 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-20 22:35:08,939 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-20 22:35:08,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-20 22:35:08,941 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-20 22:35:08,943 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-20 22:35:08,945 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-20 22:35:08,947 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-20 22:35:08,948 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-20 22:35:08,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-20 22:35:08,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-20 22:35:08,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-20 22:35:08,955 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-20 22:35:08,956 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-20 22:35:08,956 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-20 22:35:08,969 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-20 22:35:08,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-20 22:35:08,974 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-20 22:35:08,975 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-20 22:35:08,976 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-20 22:35:08,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-20 22:35:08,996 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-20 22:35:09,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-20 22:35:09,025 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-20 22:35:09,026 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-20 22:35:09,026 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-20 22:35:09,026 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-20 22:35:09,026 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-20 22:35:09,027 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-20 22:35:09,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-20 22:35:09,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-20 22:35:09,028 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-20 22:35:09,028 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-20 22:35:09,028 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-20 22:35:09,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-20 22:35:09,029 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-20 22:35:09,029 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-20 22:35:09,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-20 22:35:09,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-20 22:35:09,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-20 22:35:09,030 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-20 22:35:09,030 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-20 22:35:09,030 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-20 22:35:09,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-20 22:35:09,033 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-20 22:35:09,033 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-20 22:35:09,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-20 22:35:09,033 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-20 22:35:09,034 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-20 22:35:09,034 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-20 22:35:09,034 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-20 22:35:09,034 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-20 22:35:09,034 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-20 22:35:09,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-20 22:35:09,035 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-20 22:35:09,035 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-20 22:35:09,035 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-20 22:35:09,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-20 22:35:09,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-20 22:35:09,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-20 22:35:09,116 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-20 22:35:09,116 INFO L276 PluginConnector]: CDTParser initialized [2018-07-20 22:35:09,117 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label09_false-unreach-call.c [2018-07-20 22:35:09,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/bffbf2073/ba3cdd04070449308968e6a6b0b50735/FLAGe5d183fcb [2018-07-20 22:35:09,932 INFO L276 CDTParser]: Found 1 translation units. [2018-07-20 22:35:09,933 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label09_false-unreach-call.c [2018-07-20 22:35:09,974 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/bffbf2073/ba3cdd04070449308968e6a6b0b50735/FLAGe5d183fcb [2018-07-20 22:35:09,993 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/bffbf2073/ba3cdd04070449308968e6a6b0b50735 [2018-07-20 22:35:10,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-20 22:35:10,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-20 22:35:10,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-20 22:35:10,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-20 22:35:10,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-20 22:35:10,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:35:09" (1/1) ... [2018-07-20 22:35:10,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0a89b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:10, skipping insertion in model container [2018-07-20 22:35:10,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:35:09" (1/1) ... [2018-07-20 22:35:10,265 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-20 22:35:10,839 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 22:35:10,860 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-20 22:35:11,329 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 22:35:11,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11 WrapperNode [2018-07-20 22:35:11,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-20 22:35:11,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-20 22:35:11,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-20 22:35:11,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-20 22:35:11,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-20 22:35:11,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-20 22:35:11,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-20 22:35:11,581 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-20 22:35:11,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (1/1) ... [2018-07-20 22:35:11,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-20 22:35:11,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-20 22:35:11,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-20 22:35:11,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-20 22:35:11,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (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 [2018-07-20 22:35:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-20 22:35:12,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-20 22:35:12,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-20 22:35:12,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-20 22:35:12,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-20 22:35:12,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-20 22:35:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-20 22:35:12,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-20 22:35:17,283 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-20 22:35:17,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:35:17 BoogieIcfgContainer [2018-07-20 22:35:17,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-20 22:35:17,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-20 22:35:17,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-20 22:35:17,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-20 22:35:17,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:35:09" (1/3) ... [2018-07-20 22:35:17,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335ff8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:35:17, skipping insertion in model container [2018-07-20 22:35:17,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:11" (2/3) ... [2018-07-20 22:35:17,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335ff8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:35:17, skipping insertion in model container [2018-07-20 22:35:17,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:35:17" (3/3) ... [2018-07-20 22:35:17,297 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label09_false-unreach-call.c [2018-07-20 22:35:17,306 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-20 22:35:17,315 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-20 22:35:17,370 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-20 22:35:17,370 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-20 22:35:17,371 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-20 22:35:17,371 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-20 22:35:17,371 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-20 22:35:17,371 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-20 22:35:17,371 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-20 22:35:17,371 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-20 22:35:17,372 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-20 22:35:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-20 22:35:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-20 22:35:17,421 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:35:17,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:35:17,426 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:35:17,435 INFO L82 PathProgramCache]: Analyzing trace with hash -876891420, now seen corresponding path program 1 times [2018-07-20 22:35:17,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:35:17,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:17,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:35:17,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:17,496 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:35:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:35:18,290 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 22:35:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:35:18,470 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:35:18,471 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 22:35:18,471 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:35:18,475 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 22:35:18,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 22:35:18,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:35:18,499 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-07-20 22:35:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:35:20,091 INFO L93 Difference]: Finished difference Result 845 states and 1487 transitions. [2018-07-20 22:35:20,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 22:35:20,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2018-07-20 22:35:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:35:20,121 INFO L225 Difference]: With dead ends: 845 [2018-07-20 22:35:20,121 INFO L226 Difference]: Without dead ends: 531 [2018-07-20 22:35:20,129 INFO L578 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 [2018-07-20 22:35:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2018-07-20 22:35:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 530. [2018-07-20 22:35:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2018-07-20 22:35:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 869 transitions. [2018-07-20 22:35:20,221 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 869 transitions. Word has length 155 [2018-07-20 22:35:20,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:35:20,222 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 869 transitions. [2018-07-20 22:35:20,222 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 22:35:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 869 transitions. [2018-07-20 22:35:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-20 22:35:20,228 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:35:20,228 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:35:20,230 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:35:20,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1007699939, now seen corresponding path program 1 times [2018-07-20 22:35:20,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:35:20,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:20,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:35:20,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:20,232 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:35:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:35:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:35:20,612 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:35:20,612 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-20 22:35:20,613 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:35:20,616 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-20 22:35:20,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-20 22:35:20,617 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-20 22:35:20,617 INFO L87 Difference]: Start difference. First operand 530 states and 869 transitions. Second operand 5 states. [2018-07-20 22:35:21,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:35:21,804 INFO L93 Difference]: Finished difference Result 1579 states and 2620 transitions. [2018-07-20 22:35:21,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-20 22:35:21,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2018-07-20 22:35:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:35:21,816 INFO L225 Difference]: With dead ends: 1579 [2018-07-20 22:35:21,817 INFO L226 Difference]: Without dead ends: 1055 [2018-07-20 22:35:21,820 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-20 22:35:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2018-07-20 22:35:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1036. [2018-07-20 22:35:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2018-07-20 22:35:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1714 transitions. [2018-07-20 22:35:21,908 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1714 transitions. Word has length 165 [2018-07-20 22:35:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:35:21,908 INFO L471 AbstractCegarLoop]: Abstraction has 1036 states and 1714 transitions. [2018-07-20 22:35:21,909 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-20 22:35:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1714 transitions. [2018-07-20 22:35:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-20 22:35:21,916 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:35:21,916 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:35:21,916 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:35:21,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1096522296, now seen corresponding path program 1 times [2018-07-20 22:35:21,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:35:21,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:21,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:35:21,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:21,919 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:35:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:35:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:35:22,228 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:35:22,228 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 22:35:22,228 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:35:22,231 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 22:35:22,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 22:35:22,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:35:22,232 INFO L87 Difference]: Start difference. First operand 1036 states and 1714 transitions. Second operand 3 states. [2018-07-20 22:35:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:35:25,159 INFO L93 Difference]: Finished difference Result 2934 states and 5015 transitions. [2018-07-20 22:35:25,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 22:35:25,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2018-07-20 22:35:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:35:25,180 INFO L225 Difference]: With dead ends: 2934 [2018-07-20 22:35:25,180 INFO L226 Difference]: Without dead ends: 1904 [2018-07-20 22:35:25,185 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:35:25,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2018-07-20 22:35:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1879. [2018-07-20 22:35:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2018-07-20 22:35:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 3092 transitions. [2018-07-20 22:35:25,307 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 3092 transitions. Word has length 168 [2018-07-20 22:35:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:35:25,307 INFO L471 AbstractCegarLoop]: Abstraction has 1879 states and 3092 transitions. [2018-07-20 22:35:25,308 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 22:35:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 3092 transitions. [2018-07-20 22:35:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-20 22:35:25,317 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:35:25,317 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:35:25,318 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:35:25,318 INFO L82 PathProgramCache]: Analyzing trace with hash -351157068, now seen corresponding path program 1 times [2018-07-20 22:35:25,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:35:25,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:25,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:35:25,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:25,320 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:35:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:35:25,602 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 22:35:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:35:25,678 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:35:25,679 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-20 22:35:25,679 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:35:25,679 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-20 22:35:25,680 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-20 22:35:25,680 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-20 22:35:25,680 INFO L87 Difference]: Start difference. First operand 1879 states and 3092 transitions. Second operand 6 states. [2018-07-20 22:35:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:35:27,326 INFO L93 Difference]: Finished difference Result 5935 states and 10299 transitions. [2018-07-20 22:35:27,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-20 22:35:27,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-07-20 22:35:27,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:35:27,370 INFO L225 Difference]: With dead ends: 5935 [2018-07-20 22:35:27,370 INFO L226 Difference]: Without dead ends: 4062 [2018-07-20 22:35:27,384 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-20 22:35:27,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2018-07-20 22:35:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 3984. [2018-07-20 22:35:27,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3984 states. [2018-07-20 22:35:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 6287 transitions. [2018-07-20 22:35:27,585 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 6287 transitions. Word has length 174 [2018-07-20 22:35:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:35:27,585 INFO L471 AbstractCegarLoop]: Abstraction has 3984 states and 6287 transitions. [2018-07-20 22:35:27,585 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-20 22:35:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 6287 transitions. [2018-07-20 22:35:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-20 22:35:27,599 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:35:27,599 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:35:27,600 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:35:27,600 INFO L82 PathProgramCache]: Analyzing trace with hash -976274132, now seen corresponding path program 1 times [2018-07-20 22:35:27,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:35:27,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:27,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:35:27,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:35:27,602 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:35:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:35:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:35:27,894 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 22:35:27,894 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-20 22:35:27,895 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-07-20 22:35:27,898 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [37], [41], [45], [49], [53], [57], [60], [61], [65], [69], [73], [76], [77], [81], [85], [89], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [183], [187], [191], [195], [199], [203], [207], [211], [215], [226], [230], [234], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [301], [305], [309], [313], [317], [321], [332], [336], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [387], [391], [395], [399], [403], [407], [418], [422], [426], [430], [441], [445], [449], [453], [457], [461], [465], [469], [473], [477], [481], [485], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [544], [548], [552], [556], [560], [564], [575], [579], [583], [594], [598], [609], [613], [617], [621], [625], [629], [633], [637], [648], [659], [670], [674], [678], [682], [686], [690], [697], [705], [713], [721], [725], [727], [1181], [1182], [1183], [1184], [1186], [1187] [2018-07-20 22:35:28,003 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-20 22:35:28,005 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-20 22:39:46,119 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-20 22:39:46,120 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-20 22:39:46,122 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-20 22:39:46,122 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 22:39:46,122 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 [2018-07-20 22:39:46,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:39:46,145 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-20 22:39:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:39:46,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-20 22:39:46,461 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-20 22:39:46,663 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-20 22:39:46,663 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-20 22:39:46,668 WARN L202 ceAbstractionStarter]: Timeout [2018-07-20 22:39:46,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:39:46 BoogieIcfgContainer [2018-07-20 22:39:46,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-20 22:39:46,672 INFO L168 Benchmark]: Toolchain (without parser) took 276670.21 ms. Allocated memory was 305.7 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 246.0 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 716.2 MB. Max. memory is 5.3 GB. [2018-07-20 22:39:46,673 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-20 22:39:46,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1392.60 ms. Allocated memory was 305.7 MB in the beginning and 336.1 MB in the end (delta: 30.4 MB). Free memory was 246.0 MB in the beginning and 274.5 MB in the end (delta: -28.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 5.3 GB. [2018-07-20 22:39:46,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 177.69 ms. Allocated memory is still 336.1 MB. Free memory was 274.5 MB in the beginning and 260.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. [2018-07-20 22:39:46,675 INFO L168 Benchmark]: Boogie Preprocessor took 136.34 ms. Allocated memory is still 336.1 MB. Free memory was 260.5 MB in the beginning and 248.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 5.3 GB. [2018-07-20 22:39:46,676 INFO L168 Benchmark]: RCFGBuilder took 5567.84 ms. Allocated memory was 336.1 MB in the beginning and 527.4 MB in the end (delta: 191.4 MB). Free memory was 248.0 MB in the beginning and 401.9 MB in the end (delta: -153.9 MB). Peak memory consumption was 159.8 MB. Max. memory is 5.3 GB. [2018-07-20 22:39:46,676 INFO L168 Benchmark]: TraceAbstraction took 269385.19 ms. Allocated memory was 527.4 MB in the beginning and 2.0 GB in the end (delta: 1.5 GB). Free memory was 401.9 MB in the beginning and 1.3 GB in the end (delta: -867.5 MB). Peak memory consumption was 650.4 MB. Max. memory is 5.3 GB. [2018-07-20 22:39:46,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1392.60 ms. Allocated memory was 305.7 MB in the beginning and 336.1 MB in the end (delta: 30.4 MB). Free memory was 246.0 MB in the beginning and 274.5 MB in the end (delta: -28.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 177.69 ms. Allocated memory is still 336.1 MB. Free memory was 274.5 MB in the beginning and 260.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 136.34 ms. Allocated memory is still 336.1 MB. Free memory was 260.5 MB in the beginning and 248.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 5567.84 ms. Allocated memory was 336.1 MB in the beginning and 527.4 MB in the end (delta: 191.4 MB). Free memory was 248.0 MB in the beginning and 401.9 MB in the end (delta: -153.9 MB). Peak memory consumption was 159.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 269385.19 ms. Allocated memory was 527.4 MB in the beginning and 2.0 GB in the end (delta: 1.5 GB). Free memory was 401.9 MB in the beginning and 1.3 GB in the end (delta: -867.5 MB). Peak memory consumption was 650.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1479]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1479). Cancelled while BasicCegarLoop was analyzing trace of length 190 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 269.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1043 SDtfs, 2907 SDslu, 1141 SDs, 0 SdLazy, 2916 SolverSat, 756 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3984occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 258.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 123 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 662 NumberOfCodeBlocks, 662 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 658 ConstructedInterpolants, 0 QuantifiedInterpolants, 252310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 33/33 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/Problem03_label09_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-20_22-39-46-701.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem03_label09_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-20_22-39-46-701.csv Completed graceful shutdown