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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label46_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:41:45,998 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:41:46,000 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:41:46,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:41:46,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:41:46,015 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:41:46,016 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:41:46,018 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:41:46,020 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:41:46,021 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:41:46,022 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:41:46,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:41:46,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:41:46,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:41:46,034 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:41:46,035 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:41:46,036 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:41:46,042 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:41:46,047 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:41:46,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:41:46,050 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:41:46,052 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:41:46,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:41:46,057 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:41:46,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:41:46,060 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:41:46,061 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:41:46,063 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:41:46,064 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:41:46,065 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:41:46,065 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:41:46,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:41:46,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:41:46,068 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:41:46,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:41:46,070 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:41:46,070 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:41:46,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:41:46,101 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:41:46,102 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:41:46,102 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:41:46,103 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:41:46,103 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:41:46,103 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:41:46,103 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:41:46,103 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:41:46,104 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:41:46,104 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:41:46,104 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:41:46,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:41:46,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:41:46,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:41:46,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:41:46,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:41:46,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:41:46,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:41:46,107 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:41:46,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:41:46,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:41:46,107 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:41:46,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:41:46,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:41:46,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:41:46,108 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:41:46,108 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:41:46,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:41:46,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:41:46,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:41:46,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:41:46,110 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:41:46,110 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:41:46,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:41:46,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:41:46,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:41:46,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:41:46,190 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:41:46,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label46_true-unreach-call_false-termination.c [2018-10-24 21:41:46,256 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/aabcca9ba/07854a67f17746c6a7faed2c2f0d146a/FLAG665c27e00 [2018-10-24 21:41:46,877 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:41:46,880 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label46_true-unreach-call_false-termination.c [2018-10-24 21:41:46,897 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/aabcca9ba/07854a67f17746c6a7faed2c2f0d146a/FLAG665c27e00 [2018-10-24 21:41:46,921 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/aabcca9ba/07854a67f17746c6a7faed2c2f0d146a [2018-10-24 21:41:46,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:41:46,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:41:46,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:41:46,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:41:46,944 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:41:46,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:41:46" (1/1) ... [2018-10-24 21:41:46,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dcfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:46, skipping insertion in model container [2018-10-24 21:41:46,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:41:46" (1/1) ... [2018-10-24 21:41:46,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:41:47,049 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:41:47,601 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:41:47,606 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:41:47,768 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:41:47,786 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:41:47,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47 WrapperNode [2018-10-24 21:41:47,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:41:47,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:41:47,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:41:47,788 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:41:47,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:47,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:41:48,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:41:48,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:41:48,004 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:41:48,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (1/1) ... [2018-10-24 21:41:48,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:41:48,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:41:48,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:41:48,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:41:48,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (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 [2018-10-24 21:41:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:41:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:41:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:41:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:41:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:41:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:41:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:41:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:41:52,222 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:41:52,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:41:52 BoogieIcfgContainer [2018-10-24 21:41:52,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:41:52,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:41:52,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:41:52,230 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:41:52,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:41:46" (1/3) ... [2018-10-24 21:41:52,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7bc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:41:52, skipping insertion in model container [2018-10-24 21:41:52,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:41:47" (2/3) ... [2018-10-24 21:41:52,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7bc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:41:52, skipping insertion in model container [2018-10-24 21:41:52,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:41:52" (3/3) ... [2018-10-24 21:41:52,234 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label46_true-unreach-call_false-termination.c [2018-10-24 21:41:52,245 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:41:52,258 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:41:52,276 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:41:52,322 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:41:52,323 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:41:52,323 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:41:52,323 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:41:52,323 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:41:52,323 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:41:52,324 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:41:52,324 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:41:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 21:41:52,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 21:41:52,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:41:52,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:41:52,367 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:41:52,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:41:52,373 INFO L82 PathProgramCache]: Analyzing trace with hash -956802812, now seen corresponding path program 1 times [2018-10-24 21:41:52,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:41:52,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:41:52,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:41:52,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:41:52,431 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:41:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:41:52,861 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:41:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:41:52,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:41:52,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:41:52,979 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:41:52,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:41:53,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:41:53,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:41:53,006 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-24 21:41:54,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:41:54,842 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-24 21:41:54,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:41:54,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-10-24 21:41:54,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:41:54,866 INFO L225 Difference]: With dead ends: 691 [2018-10-24 21:41:54,867 INFO L226 Difference]: Without dead ends: 434 [2018-10-24 21:41:54,875 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:41:54,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-24 21:41:54,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-24 21:41:54,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-24 21:41:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-24 21:41:54,960 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 46 [2018-10-24 21:41:54,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:41:54,960 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-24 21:41:54,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:41:54,961 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-24 21:41:54,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 21:41:54,969 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:41:54,969 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:41:54,970 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:41:54,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:41:54,970 INFO L82 PathProgramCache]: Analyzing trace with hash -910572689, now seen corresponding path program 1 times [2018-10-24 21:41:54,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:41:54,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:41:54,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:41:54,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:41:54,972 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:41:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:41:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:41:55,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:41:55,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:41:55,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:41:55,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:41:55,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:41:55,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:41:55,309 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-24 21:41:57,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:41:57,423 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-10-24 21:41:57,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:41:57,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-10-24 21:41:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:41:57,430 INFO L225 Difference]: With dead ends: 1062 [2018-10-24 21:41:57,431 INFO L226 Difference]: Without dead ends: 634 [2018-10-24 21:41:57,433 INFO L605 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 [2018-10-24 21:41:57,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-10-24 21:41:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-10-24 21:41:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-24 21:41:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-10-24 21:41:57,483 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 133 [2018-10-24 21:41:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:41:57,484 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-10-24 21:41:57,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:41:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-10-24 21:41:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 21:41:57,488 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:41:57,489 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:41:57,489 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:41:57,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:41:57,490 INFO L82 PathProgramCache]: Analyzing trace with hash 156539316, now seen corresponding path program 1 times [2018-10-24 21:41:57,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:41:57,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:41:57,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:41:57,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:41:57,491 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:41:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:41:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:41:57,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:41:57,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:41:57,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:41:57,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:41:57,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:41:57,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:41:57,717 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-10-24 21:42:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:42:02,028 INFO L93 Difference]: Finished difference Result 2352 states and 4010 transitions. [2018-10-24 21:42:02,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:42:02,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2018-10-24 21:42:02,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:42:02,045 INFO L225 Difference]: With dead ends: 2352 [2018-10-24 21:42:02,045 INFO L226 Difference]: Without dead ends: 1733 [2018-10-24 21:42:02,051 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:42:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2018-10-24 21:42:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2018-10-24 21:42:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-10-24 21:42:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2678 transitions. [2018-10-24 21:42:02,116 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2678 transitions. Word has length 142 [2018-10-24 21:42:02,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:42:02,118 INFO L481 AbstractCegarLoop]: Abstraction has 1733 states and 2678 transitions. [2018-10-24 21:42:02,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:42:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2678 transitions. [2018-10-24 21:42:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-10-24 21:42:02,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:42:02,133 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:42:02,133 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:42:02,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:42:02,134 INFO L82 PathProgramCache]: Analyzing trace with hash -559015785, now seen corresponding path program 1 times [2018-10-24 21:42:02,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:42:02,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:42:02,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:42:02,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:42:02,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:42:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:42:02,504 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-10-24 21:42:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 78 proven. 101 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:42:02,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:42:02,726 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:42:02,728 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-10-24 21:42:02,730 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [269], [271], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 21:42:02,809 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:42:02,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:42:05,847 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:42:08,737 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:42:08,742 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:42:08,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:42:08,788 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:42:12,245 INFO L232 lantSequenceWeakener]: Weakened 257 states. On average, predicates are now at 77.84% of their original sizes. [2018-10-24 21:42:12,245 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:42:12,675 INFO L413 sIntCurrentIteration]: We have 264 unified AI predicates [2018-10-24 21:42:12,675 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:42:12,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:42:12,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-24 21:42:12,676 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:42:12,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:42:12,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:42:12,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:42:12,678 INFO L87 Difference]: Start difference. First operand 1733 states and 2678 transitions. Second operand 7 states. [2018-10-24 21:42:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:42:47,439 INFO L93 Difference]: Finished difference Result 3645 states and 5642 transitions. [2018-10-24 21:42:47,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:42:47,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2018-10-24 21:42:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:42:47,455 INFO L225 Difference]: With dead ends: 3645 [2018-10-24 21:42:47,455 INFO L226 Difference]: Without dead ends: 1918 [2018-10-24 21:42:47,463 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 265 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:42:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2018-10-24 21:42:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1916. [2018-10-24 21:42:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2018-10-24 21:42:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2869 transitions. [2018-10-24 21:42:47,517 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2869 transitions. Word has length 265 [2018-10-24 21:42:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:42:47,518 INFO L481 AbstractCegarLoop]: Abstraction has 1916 states and 2869 transitions. [2018-10-24 21:42:47,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:42:47,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2869 transitions. [2018-10-24 21:42:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-10-24 21:42:47,528 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:42:47,529 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:42:47,529 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:42:47,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:42:47,530 INFO L82 PathProgramCache]: Analyzing trace with hash 211096808, now seen corresponding path program 1 times [2018-10-24 21:42:47,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:42:47,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:42:47,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:42:47,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:42:47,531 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:42:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:42:48,053 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:42:48,253 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 21:42:48,474 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:42:48,944 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-24 21:42:49,537 WARN L179 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-24 21:42:50,175 WARN L179 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-10-24 21:42:50,817 WARN L179 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-24 21:42:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 205 proven. 183 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:42:51,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:42:51,443 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:42:51,443 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 351 with the following transitions: [2018-10-24 21:42:51,444 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [269], [271], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 21:42:51,453 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:42:51,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:42:54,356 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:42:59,626 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:42:59,626 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:42:59,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:42:59,636 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:43:02,732 INFO L232 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 78.34% of their original sizes. [2018-10-24 21:43:02,732 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:43:26,820 INFO L413 sIntCurrentIteration]: We have 349 unified AI predicates [2018-10-24 21:43:26,821 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:43:26,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:43:26,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [12] total 35 [2018-10-24 21:43:26,821 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:43:26,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-24 21:43:26,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-24 21:43:26,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2018-10-24 21:43:26,823 INFO L87 Difference]: Start difference. First operand 1916 states and 2869 transitions. Second operand 25 states. Received shutdown request... [2018-10-24 21:45:26,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-24 21:45:26,908 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:45:26,913 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:45:26,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:45:26 BoogieIcfgContainer [2018-10-24 21:45:26,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:45:26,914 INFO L168 Benchmark]: Toolchain (without parser) took 219979.42 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 21:45:26,915 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-24 21:45:26,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:45:26,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 215.49 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:45:26,918 INFO L168 Benchmark]: Boogie Preprocessor took 105.28 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:45:26,919 INFO L168 Benchmark]: RCFGBuilder took 4113.67 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.8 MB). Peak memory consumption was 133.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:45:26,920 INFO L168 Benchmark]: TraceAbstraction took 214689.01 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.9 GB in the end (delta: -867.2 MB). Peak memory consumption was 980.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:45:26,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 848.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 215.49 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.28 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4113.67 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.8 MB). Peak memory consumption was 133.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214689.01 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.9 GB in the end (delta: -867.2 MB). Peak memory consumption was 980.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 121). Cancelled while BasicCegarLoop was constructing difference of abstraction (1916states) and FLOYD_HOARE automaton (currently 25 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (4304 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 214.6s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 163.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 776 SDtfs, 4334 SDslu, 1104 SDs, 0 SdLazy, 7071 SolverSat, 1231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 651 GetRequests, 572 SyntacticMatches, 23 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 30.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1916occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9960133106366881 AbsIntWeakeningRatio, 0.09461663947797716 AbsIntAvgWeakeningVarsNumRemoved, 623.6101141924959 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 936 NumberOfCodeBlocks, 936 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 931 ConstructedInterpolants, 0 QuantifiedInterpolants, 2307973 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 371/655 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown