java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 11:40:12,933 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 11:40:12,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 11:40:12,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 11:40:12,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 11:40:12,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 11:40:12,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 11:40:12,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 11:40:12,955 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 11:40:12,955 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 11:40:12,956 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 11:40:12,957 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 11:40:12,958 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 11:40:12,959 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 11:40:12,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 11:40:12,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 11:40:12,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 11:40:12,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 11:40:12,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 11:40:12,967 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 11:40:12,968 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 11:40:12,969 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 11:40:12,971 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 11:40:12,972 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 11:40:12,972 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 11:40:12,973 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 11:40:12,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 11:40:12,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 11:40:12,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 11:40:12,981 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 11:40:12,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 11:40:12,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 11:40:12,982 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 11:40:12,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 11:40:12,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 11:40:12,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 11:40:12,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 11:40:13,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 11:40:13,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 11:40:13,011 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 11:40:13,011 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 11:40:13,012 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 11:40:13,012 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 11:40:13,012 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 11:40:13,012 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 11:40:13,012 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 11:40:13,013 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 11:40:13,013 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 11:40:13,013 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 11:40:13,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 11:40:13,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 11:40:13,014 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 11:40:13,014 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 11:40:13,014 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 11:40:13,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 11:40:13,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 11:40:13,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 11:40:13,015 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 11:40:13,016 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 11:40:13,016 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 11:40:13,016 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 11:40:13,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:40:13,016 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 11:40:13,017 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 11:40:13,017 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 11:40:13,017 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 11:40:13,017 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 11:40:13,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 11:40:13,018 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 11:40:13,018 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 11:40:13,018 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 11:40:13,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 11:40:13,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 11:40:13,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 11:40:13,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 11:40:13,105 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 11:40:13,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-10-27 11:40:13,179 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bbff7d3ba/f195c3f6289645e69a7b00dbf9b99233/FLAG01631a52a [2018-10-27 11:40:13,816 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 11:40:13,818 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-10-27 11:40:13,840 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bbff7d3ba/f195c3f6289645e69a7b00dbf9b99233/FLAG01631a52a [2018-10-27 11:40:13,858 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bbff7d3ba/f195c3f6289645e69a7b00dbf9b99233 [2018-10-27 11:40:13,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 11:40:13,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 11:40:13,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 11:40:13,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 11:40:13,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 11:40:13,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:40:13" (1/1) ... [2018-10-27 11:40:13,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:13, skipping insertion in model container [2018-10-27 11:40:13,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:40:13" (1/1) ... [2018-10-27 11:40:13,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 11:40:14,002 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 11:40:14,780 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:40:14,785 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 11:40:15,096 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:40:15,119 INFO L193 MainTranslator]: Completed translation [2018-10-27 11:40:15,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15 WrapperNode [2018-10-27 11:40:15,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 11:40:15,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 11:40:15,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 11:40:15,122 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 11:40:15,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 11:40:15,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 11:40:15,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 11:40:15,504 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 11:40:15,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... [2018-10-27 11:40:15,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 11:40:15,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 11:40:15,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 11:40:15,719 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 11:40:15,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 11:40:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 11:40:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 11:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 11:40:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 11:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 11:40:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 11:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 11:40:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 11:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 11:40:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 11:40:22,341 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 11:40:22,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:40:22 BoogieIcfgContainer [2018-10-27 11:40:22,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 11:40:22,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 11:40:22,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 11:40:22,348 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 11:40:22,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:40:13" (1/3) ... [2018-10-27 11:40:22,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45164ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:40:22, skipping insertion in model container [2018-10-27 11:40:22,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:40:15" (2/3) ... [2018-10-27 11:40:22,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45164ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:40:22, skipping insertion in model container [2018-10-27 11:40:22,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:40:22" (3/3) ... [2018-10-27 11:40:22,352 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label34_false-unreach-call.c [2018-10-27 11:40:22,361 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 11:40:22,370 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 11:40:22,389 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 11:40:22,437 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 11:40:22,438 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 11:40:22,438 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 11:40:22,438 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 11:40:22,438 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 11:40:22,438 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 11:40:22,438 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 11:40:22,439 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 11:40:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 11:40:22,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 11:40:22,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:40:22,487 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:40:22,490 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:40:22,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:40:22,495 INFO L82 PathProgramCache]: Analyzing trace with hash 554449340, now seen corresponding path program 1 times [2018-10-27 11:40:22,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:40:22,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:40:22,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:40:22,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:40:22,552 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:40:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:40:22,940 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-27 11:40:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:40:22,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:40:22,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:40:22,957 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:40:22,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:40:22,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:40:22,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:40:22,984 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 11:40:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:40:32,174 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-27 11:40:32,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:40:32,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-10-27 11:40:32,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:40:32,211 INFO L225 Difference]: With dead ends: 1558 [2018-10-27 11:40:32,212 INFO L226 Difference]: Without dead ends: 1114 [2018-10-27 11:40:32,224 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:40:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-27 11:40:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-10-27 11:40:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-10-27 11:40:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-10-27 11:40:32,387 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 20 [2018-10-27 11:40:32,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:40:32,387 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-10-27 11:40:32,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:40:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-10-27 11:40:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-27 11:40:32,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:40:32,400 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 11:40:32,400 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:40:32,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:40:32,401 INFO L82 PathProgramCache]: Analyzing trace with hash 219727794, now seen corresponding path program 1 times [2018-10-27 11:40:32,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:40:32,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:40:32,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:40:32,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:40:32,404 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:40:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:40:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:40:32,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:40:32,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 11:40:32,746 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:40:32,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 11:40:32,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 11:40:32,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 11:40:32,749 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-10-27 11:40:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:40:42,168 INFO L93 Difference]: Finished difference Result 3240 states and 5580 transitions. [2018-10-27 11:40:42,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 11:40:42,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-10-27 11:40:42,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:40:42,189 INFO L225 Difference]: With dead ends: 3240 [2018-10-27 11:40:42,189 INFO L226 Difference]: Without dead ends: 2155 [2018-10-27 11:40:42,196 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 11:40:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2018-10-27 11:40:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2114. [2018-10-27 11:40:42,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-10-27 11:40:42,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-10-27 11:40:42,297 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 93 [2018-10-27 11:40:42,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:40:42,298 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-10-27 11:40:42,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 11:40:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-10-27 11:40:42,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-27 11:40:42,304 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:40:42,305 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 11:40:42,306 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:40:42,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:40:42,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1955423070, now seen corresponding path program 1 times [2018-10-27 11:40:42,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:40:42,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:40:42,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:40:42,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:40:42,308 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:40:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:40:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:40:42,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 11:40:42,637 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 11:40:42,638 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-10-27 11:40:42,640 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 11:40:42,695 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 11:40:42,695 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 11:40:43,190 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 11:40:43,192 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 11:40:43,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:40:43,229 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 11:40:43,483 INFO L227 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 77.35% of their original sizes. [2018-10-27 11:40:43,483 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 11:40:43,736 INFO L415 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2018-10-27 11:40:43,737 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 11:40:43,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 11:40:43,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-27 11:40:43,741 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:40:43,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 11:40:43,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 11:40:43,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 11:40:43,743 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 6 states. [2018-10-27 11:40:45,922 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 11:44:36,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 11:44:36,444 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 11:44:36,450 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 11:44:36,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 11:44:36 BoogieIcfgContainer [2018-10-27 11:44:36,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 11:44:36,451 INFO L168 Benchmark]: Toolchain (without parser) took 262580.75 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -333.9 MB). Peak memory consumption was 846.8 MB. Max. memory is 7.1 GB. [2018-10-27 11:44:36,453 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 11:44:36,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1247.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-27 11:44:36,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 381.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -858.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2018-10-27 11:44:36,456 INFO L168 Benchmark]: Boogie Preprocessor took 215.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2018-10-27 11:44:36,457 INFO L168 Benchmark]: RCFGBuilder took 6623.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 298.1 MB). Peak memory consumption was 298.1 MB. Max. memory is 7.1 GB. [2018-10-27 11:44:36,458 INFO L168 Benchmark]: TraceAbstraction took 254106.92 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 435.2 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 92.5 MB). Peak memory consumption was 527.6 MB. Max. memory is 7.1 GB. [2018-10-27 11:44:36,463 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1247.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 381.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -858.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 215.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6623.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 298.1 MB). Peak memory consumption was 298.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254106.92 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 435.2 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 92.5 MB). Peak memory consumption was 527.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was constructing difference of abstraction (2114states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (1930 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 254.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 251.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 619 SDtfs, 2607 SDslu, 749 SDs, 0 SdLazy, 4100 SolverSat, 1110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 238.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2114occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9962316017316016 AbsIntWeakeningRatio, 0.2 AbsIntAvgWeakeningVarsNumRemoved, 17.65 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 64 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 61313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 17/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown