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/Problem01_label40_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 07:05:14,883 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 07:05:14,885 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 07:05:14,901 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 07:05:14,901 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 07:05:14,902 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 07:05:14,903 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 07:05:14,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 07:05:14,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 07:05:14,912 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 07:05:14,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 07:05:14,913 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 07:05:14,914 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 07:05:14,918 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 07:05:14,919 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 07:05:14,920 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 07:05:14,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 07:05:14,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 07:05:14,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 07:05:14,928 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 07:05:14,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 07:05:14,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 07:05:14,932 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 07:05:14,940 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 07:05:14,957 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 07:05:14,958 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 07:05:14,959 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 07:05:14,959 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 07:05:14,959 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 07:05:14,959 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 07:05:14,959 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 07:05:14,959 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 07:05:14,960 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 07:05:14,960 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 07:05:14,960 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 07:05:14,961 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 07:05:14,962 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 07:05:14,962 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 07:05:14,962 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 07:05:14,963 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 07:05:14,963 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 07:05:14,963 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 07:05:14,963 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 07:05:14,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 07:05:14,964 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 07:05:14,964 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 07:05:14,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 07:05:14,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 07:05:14,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 07:05:14,965 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 07:05:14,965 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 07:05:14,965 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 07:05:14,965 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 07:05:14,965 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 07:05:14,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 07:05:14,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 07:05:14,966 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 07:05:14,966 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 07:05:14,966 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 07:05:15,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 07:05:15,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 07:05:15,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 07:05:15,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 07:05:15,037 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 07:05:15,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label40_true-unreach-call_false-termination.c [2018-07-21 07:05:15,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b95c7f152/7e51a497d8584accbef15b0777a2d5d3/FLAGc9bf87d0c [2018-07-21 07:05:15,833 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 07:05:15,833 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label40_true-unreach-call_false-termination.c [2018-07-21 07:05:15,869 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b95c7f152/7e51a497d8584accbef15b0777a2d5d3/FLAGc9bf87d0c [2018-07-21 07:05:15,884 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b95c7f152/7e51a497d8584accbef15b0777a2d5d3 [2018-07-21 07:05:15,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 07:05:15,901 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 07:05:15,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 07:05:15,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 07:05:15,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 07:05:15,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:05:15" (1/1) ... [2018-07-21 07:05:15,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4e72a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:15, skipping insertion in model container [2018-07-21 07:05:15,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:05:15" (1/1) ... [2018-07-21 07:05:16,192 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 07:05:16,467 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:05:16,495 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 07:05:16,640 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:05:16,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16 WrapperNode [2018-07-21 07:05:16,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 07:05:16,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 07:05:16,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 07:05:16,703 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 07:05:16,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 07:05:16,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 07:05:16,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 07:05:16,829 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 07:05:16,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (1/1) ... [2018-07-21 07:05:16,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 07:05:16,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 07:05:16,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 07:05:16,957 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 07:05:16,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (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 07:05:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 07:05:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 07:05:17,201 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 07:05:17,201 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 07:05:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 07:05:17,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 07:05:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 07:05:17,202 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 07:05:20,656 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 07:05:20,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:05:20 BoogieIcfgContainer [2018-07-21 07:05:20,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 07:05:20,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 07:05:20,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 07:05:20,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 07:05:20,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:05:15" (1/3) ... [2018-07-21 07:05:20,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acc36b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:05:20, skipping insertion in model container [2018-07-21 07:05:20,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:05:16" (2/3) ... [2018-07-21 07:05:20,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acc36b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:05:20, skipping insertion in model container [2018-07-21 07:05:20,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:05:20" (3/3) ... [2018-07-21 07:05:20,667 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label40_true-unreach-call_false-termination.c [2018-07-21 07:05:20,677 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 07:05:20,687 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 07:05:20,745 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 07:05:20,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 07:05:20,746 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 07:05:20,746 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 07:05:20,747 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 07:05:20,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 07:05:20,747 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 07:05:20,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 07:05:20,747 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 07:05:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-07-21 07:05:20,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-21 07:05:20,788 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:05:20,789 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] [2018-07-21 07:05:20,790 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 07:05:20,795 INFO L82 PathProgramCache]: Analyzing trace with hash 861402336, now seen corresponding path program 1 times [2018-07-21 07:05:20,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:05:20,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:05:20,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:05:20,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:05:20,852 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:05:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:05:21,559 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 07:05:21,561 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:05:21,562 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 07:05:21,562 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:05:21,566 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 07:05:21,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 07:05:21,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:05:21,587 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-07-21 07:05:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:05:23,154 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-07-21 07:05:23,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 07:05:23,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2018-07-21 07:05:23,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:05:23,177 INFO L225 Difference]: With dead ends: 550 [2018-07-21 07:05:23,177 INFO L226 Difference]: Without dead ends: 340 [2018-07-21 07:05:23,184 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:05:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-21 07:05:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-21 07:05:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-21 07:05:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 553 transitions. [2018-07-21 07:05:23,269 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 553 transitions. Word has length 94 [2018-07-21 07:05:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:05:23,270 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 553 transitions. [2018-07-21 07:05:23,270 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 07:05:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 553 transitions. [2018-07-21 07:05:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-21 07:05:23,279 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:05:23,280 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] [2018-07-21 07:05:23,280 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 07:05:23,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1181206913, now seen corresponding path program 1 times [2018-07-21 07:05:23,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:05:23,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:05:23,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:05:23,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:05:23,286 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:05:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:05:23,504 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 07:05:23,505 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:05:23,505 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 07:05:23,505 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:05:23,507 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 07:05:23,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 07:05:23,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:05:23,510 INFO L87 Difference]: Start difference. First operand 340 states and 553 transitions. Second operand 6 states. [2018-07-21 07:05:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:05:25,089 INFO L93 Difference]: Finished difference Result 1075 states and 1835 transitions. [2018-07-21 07:05:25,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 07:05:25,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-07-21 07:05:25,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:05:25,099 INFO L225 Difference]: With dead ends: 1075 [2018-07-21 07:05:25,099 INFO L226 Difference]: Without dead ends: 741 [2018-07-21 07:05:25,106 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 07:05:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-07-21 07:05:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-07-21 07:05:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-07-21 07:05:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1145 transitions. [2018-07-21 07:05:25,166 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1145 transitions. Word has length 105 [2018-07-21 07:05:25,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:05:25,166 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1145 transitions. [2018-07-21 07:05:25,167 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 07:05:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1145 transitions. [2018-07-21 07:05:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-21 07:05:25,174 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:05:25,175 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-21 07:05:25,175 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 07:05:25,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1700574034, now seen corresponding path program 1 times [2018-07-21 07:05:25,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:05:25,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:05:25,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:05:25,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:05:25,177 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:05:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:05:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:05:25,498 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:05:25,498 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:05:25,499 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-07-21 07:05:25,501 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-21 07:05:25,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:05:25,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 07:06:26,754 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 07:06:26,756 INFO L272 AbstractInterpreter]: Visited 98 different actions 166 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-21 07:06:26,803 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 07:06:40,247 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 80.21% of their original sizes. [2018-07-21 07:06:40,247 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 07:06:45,817 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 07:06:45,818 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 07:06:45,850 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-21 07:06:45,850 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:06:45,850 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-21 07:06:45,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-21 07:06:45,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-07-21 07:06:45,851 INFO L87 Difference]: Start difference. First operand 724 states and 1145 transitions. Second operand 17 states. [2018-07-21 07:07:36,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:07:36,940 INFO L93 Difference]: Finished difference Result 1824 states and 2918 transitions. [2018-07-21 07:07:36,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-21 07:07:36,940 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 130 [2018-07-21 07:07:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:07:36,948 INFO L225 Difference]: With dead ends: 1824 [2018-07-21 07:07:36,948 INFO L226 Difference]: Without dead ends: 781 [2018-07-21 07:07:36,952 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 100 SyntacticMatches, 14 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2018-07-21 07:07:36,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2018-07-21 07:07:36,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 781. [2018-07-21 07:07:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2018-07-21 07:07:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1129 transitions. [2018-07-21 07:07:37,007 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1129 transitions. Word has length 130 [2018-07-21 07:07:37,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:07:37,007 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1129 transitions. [2018-07-21 07:07:37,007 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-21 07:07:37,008 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1129 transitions. [2018-07-21 07:07:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-21 07:07:37,012 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:07:37,012 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-21 07:07:37,012 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 07:07:37,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1940401555, now seen corresponding path program 1 times [2018-07-21 07:07:37,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:07:37,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:07:37,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:07:37,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:07:37,015 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:07:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:07:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 50 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:07:37,266 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:07:37,266 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:07:37,267 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-07-21 07:07:37,267 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [21], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-21 07:07:37,276 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:07:37,276 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 07:08:14,992 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 07:08:14,992 INFO L272 AbstractInterpreter]: Visited 99 different actions 168 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-21 07:08:14,998 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 07:08:20,960 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 80.24% of their original sizes. [2018-07-21 07:08:20,960 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 07:08:24,134 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 07:08:24,134 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 07:08:24,134 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [10] total 27 [2018-07-21 07:08:24,134 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:08:24,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-21 07:08:24,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-21 07:08:24,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-07-21 07:08:24,135 INFO L87 Difference]: Start difference. First operand 781 states and 1129 transitions. Second operand 19 states. [2018-07-21 07:08:44,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:08:44,683 INFO L93 Difference]: Finished difference Result 1640 states and 2387 transitions. [2018-07-21 07:08:44,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-21 07:08:44,683 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 140 [2018-07-21 07:08:44,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:08:44,693 INFO L225 Difference]: With dead ends: 1640 [2018-07-21 07:08:44,693 INFO L226 Difference]: Without dead ends: 926 [2018-07-21 07:08:44,696 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 158 GetRequests, 117 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2018-07-21 07:08:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2018-07-21 07:08:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 919. [2018-07-21 07:08:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2018-07-21 07:08:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1272 transitions. [2018-07-21 07:08:44,756 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1272 transitions. Word has length 140 [2018-07-21 07:08:44,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:08:44,756 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1272 transitions. [2018-07-21 07:08:44,756 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-21 07:08:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1272 transitions. [2018-07-21 07:08:44,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-21 07:08:44,760 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:08:44,761 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:44,761 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 07:08:44,761 INFO L82 PathProgramCache]: Analyzing trace with hash -303719041, now seen corresponding path program 1 times [2018-07-21 07:08:44,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:08:44,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:08:44,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:08:44,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:08:44,765 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:08:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:08:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 83 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:08:45,547 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:08:45,547 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:08:45,547 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-07-21 07:08:45,548 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [21], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-21 07:08:45,553 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:08:45,553 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 07:09:13,511 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 07:09:13,512 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 07:09:13,513 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 07:09:13,513 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:09:13,514 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 07:09:13,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:09:13,535 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 07:09:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:09:13,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 07:09:13,707 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 07:09:13,908 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 07:09:13,909 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 07:09:13,914 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 07:09:13,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 07:09:13 BoogieIcfgContainer [2018-07-21 07:09:13,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 07:09:13,915 INFO L168 Benchmark]: Toolchain (without parser) took 238019.52 ms. Allocated memory was 299.4 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 241.3 MB in the beginning and 2.0 GB in the end (delta: -1.7 GB). Peak memory consumption was 257.7 MB. Max. memory is 5.3 GB. [2018-07-21 07:09:13,916 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 299.4 MB. Free memory is still 262.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 07:09:13,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.05 ms. Allocated memory is still 299.4 MB. Free memory was 240.3 MB in the beginning and 207.4 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 5.3 GB. [2018-07-21 07:09:13,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.69 ms. Allocated memory is still 299.4 MB. Free memory was 207.4 MB in the beginning and 202.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:09:13,918 INFO L168 Benchmark]: Boogie Preprocessor took 126.95 ms. Allocated memory is still 299.4 MB. Free memory was 202.4 MB in the beginning and 197.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:09:13,918 INFO L168 Benchmark]: RCFGBuilder took 3701.29 ms. Allocated memory was 299.4 MB in the beginning and 463.5 MB in the end (delta: 164.1 MB). Free memory was 197.5 MB in the beginning and 319.0 MB in the end (delta: -121.5 MB). Peak memory consumption was 58.8 MB. Max. memory is 5.3 GB. [2018-07-21 07:09:13,919 INFO L168 Benchmark]: TraceAbstraction took 233255.49 ms. Allocated memory was 463.5 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 319.0 MB in the beginning and 2.0 GB in the end (delta: -1.7 GB). Peak memory consumption was 171.3 MB. Max. memory is 5.3 GB. [2018-07-21 07:09:13,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 299.4 MB. Free memory is still 262.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 799.05 ms. Allocated memory is still 299.4 MB. Free memory was 240.3 MB in the beginning and 207.4 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 125.69 ms. Allocated memory is still 299.4 MB. Free memory was 207.4 MB in the beginning and 202.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 126.95 ms. Allocated memory is still 299.4 MB. Free memory was 202.4 MB in the beginning and 197.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3701.29 ms. Allocated memory was 299.4 MB in the beginning and 463.5 MB in the end (delta: 164.1 MB). Free memory was 197.5 MB in the beginning and 319.0 MB in the end (delta: -121.5 MB). Peak memory consumption was 58.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 233255.49 ms. Allocated memory was 463.5 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 319.0 MB in the beginning and 2.0 GB in the end (delta: -1.7 GB). Peak memory consumption was 171.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 437]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 437). Cancelled while BasicCegarLoop was analyzing trace of length 174 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, 208 locations, 1 error locations. TIMEOUT Result, 233.1s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 74.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 653 SDtfs, 2760 SDslu, 1200 SDs, 0 SdLazy, 5001 SolverSat, 748 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 319 GetRequests, 221 SyntacticMatches, 22 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=919occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 127.0s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.992855842737532 AbsIntWeakeningRatio, 0.2835820895522388 AbsIntAvgWeakeningVarsNumRemoved, 483.19029850746267 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 469 NumberOfCodeBlocks, 469 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 465 ConstructedInterpolants, 0 QuantifiedInterpolants, 121990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 98/118 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/Problem01_label40_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_07-09-13-942.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem01_label40_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_07-09-13-942.csv Completed graceful shutdown