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/Problem10_label15_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:28:34,121 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:28:34,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:28:34,135 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:28:34,135 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:28:34,136 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:28:34,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:28:34,140 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:28:34,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:28:34,142 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:28:34,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:28:34,144 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:28:34,145 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:28:34,146 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:28:34,147 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:28:34,148 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:28:34,149 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:28:34,151 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:28:34,153 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:28:34,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:28:34,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:28:34,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:28:34,161 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:28:34,162 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:28:34,162 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:28:34,163 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:28:34,164 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:28:34,165 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:28:34,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:28:34,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:28:34,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:28:34,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:28:34,168 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:28:34,169 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:28:34,170 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:28:34,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:28:34,171 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 [2018-10-26 23:28:34,201 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:28:34,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:28:34,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:28:34,208 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:28:34,208 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:28:34,208 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:28:34,208 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:28:34,208 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:28:34,209 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:28:34,209 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:28:34,209 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:28:34,209 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:28:34,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:28:34,212 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:28:34,212 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:28:34,212 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:28:34,212 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:28:34,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:28:34,213 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:28:34,214 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:28:34,214 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:28:34,214 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:28:34,214 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:28:34,215 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:28:34,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:28:34,215 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:28:34,215 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:28:34,215 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:28:34,216 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:28:34,216 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:28:34,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:28:34,217 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:28:34,217 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:28:34,217 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:28:34,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:28:34,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:28:34,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:28:34,305 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:28:34,305 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:28:34,306 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label15_false-unreach-call.c [2018-10-26 23:28:34,375 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cbffc43d7/86ef4c8ee4e3410eae4fe1eaea6d29e2/FLAGd0a8ee9a6 [2018-10-26 23:28:35,016 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:28:35,023 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label15_false-unreach-call.c [2018-10-26 23:28:35,039 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cbffc43d7/86ef4c8ee4e3410eae4fe1eaea6d29e2/FLAGd0a8ee9a6 [2018-10-26 23:28:35,060 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cbffc43d7/86ef4c8ee4e3410eae4fe1eaea6d29e2 [2018-10-26 23:28:35,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:28:35,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:28:35,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:28:35,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:28:35,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:28:35,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128929bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35, skipping insertion in model container [2018-10-26 23:28:35,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:28:35,166 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:28:35,623 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:28:35,628 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:28:35,729 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:28:35,748 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:28:35,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35 WrapperNode [2018-10-26 23:28:35,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:28:35,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:28:35,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:28:35,749 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:28:35,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:28:35,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:28:35,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:28:35,944 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:28:35,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:35,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:36,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:36,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (1/1) ... [2018-10-26 23:28:36,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:28:36,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:28:36,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:28:36,036 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:28:36,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (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 [2018-10-26 23:28:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:28:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:28:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:28:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:28:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:28:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:28:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:28:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:28:39,206 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:28:39,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:28:39 BoogieIcfgContainer [2018-10-26 23:28:39,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:28:39,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:28:39,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:28:39,218 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:28:39,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:28:35" (1/3) ... [2018-10-26 23:28:39,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:28:39, skipping insertion in model container [2018-10-26 23:28:39,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:35" (2/3) ... [2018-10-26 23:28:39,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:28:39, skipping insertion in model container [2018-10-26 23:28:39,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:28:39" (3/3) ... [2018-10-26 23:28:39,223 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label15_false-unreach-call.c [2018-10-26 23:28:39,231 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:28:39,238 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:28:39,252 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:28:39,288 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:28:39,288 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:28:39,288 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:28:39,288 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:28:39,289 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:28:39,289 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:28:39,289 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:28:39,289 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:28:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-26 23:28:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 23:28:39,325 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:39,326 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:28:39,328 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:39,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:39,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1719497273, now seen corresponding path program 1 times [2018-10-26 23:28:39,337 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:39,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:39,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:39,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:39,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:39,747 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:28:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:28:39,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:28:39,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:28:39,847 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:28:39,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:28:39,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:28:39,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:28:39,872 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-26 23:28:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:28:41,596 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-26 23:28:41,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:28:41,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-10-26 23:28:41,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:28:41,618 INFO L225 Difference]: With dead ends: 574 [2018-10-26 23:28:41,619 INFO L226 Difference]: Without dead ends: 356 [2018-10-26 23:28:41,626 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:28:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-26 23:28:41,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-26 23:28:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-26 23:28:41,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-10-26 23:28:41,698 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 17 [2018-10-26 23:28:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:28:41,699 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-10-26 23:28:41,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:28:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-10-26 23:28:41,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-26 23:28:41,705 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:41,706 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:28:41,706 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:41,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:41,707 INFO L82 PathProgramCache]: Analyzing trace with hash 115902964, now seen corresponding path program 1 times [2018-10-26 23:28:41,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:41,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:41,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:41,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:41,709 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 23:28:42,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:28:42,032 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:28:42,033 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-10-26 23:28:42,035 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:28:42,104 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:28:42,104 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:28:44,890 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:28:44,892 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-26 23:28:44,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:44,905 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:28:46,894 INFO L227 lantSequenceWeakener]: Weakened 90 states. On average, predicates are now at 73.25% of their original sizes. [2018-10-26 23:28:46,894 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:28:51,040 INFO L415 sIntCurrentIteration]: We unified 104 AI predicates to 104 [2018-10-26 23:28:51,040 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:28:51,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:28:51,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-26 23:28:51,042 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:28:51,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 23:28:51,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 23:28:51,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-26 23:28:51,044 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-10-26 23:29:06,862 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:29:40,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:29:40,279 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-10-26 23:29:40,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 23:29:40,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2018-10-26 23:29:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:29:40,291 INFO L225 Difference]: With dead ends: 855 [2018-10-26 23:29:40,291 INFO L226 Difference]: Without dead ends: 505 [2018-10-26 23:29:40,298 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-26 23:29:40,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-10-26 23:29:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-10-26 23:29:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-10-26 23:29:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-10-26 23:29:40,397 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 105 [2018-10-26 23:29:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:29:40,399 INFO L481 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-10-26 23:29:40,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 23:29:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-10-26 23:29:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-26 23:29:40,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:29:40,412 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:29:40,412 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:29:40,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:29:40,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1510191846, now seen corresponding path program 1 times [2018-10-26 23:29:40,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:29:40,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:29:40,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:29:40,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:29:40,414 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:29:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:29:40,796 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:29:41,028 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-26 23:29:41,029 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:29:41,029 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:29:41,029 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-10-26 23:29:41,030 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [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], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:29:41,035 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:29:41,035 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:29:42,195 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:29:46,095 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:29:46,096 INFO L272 AbstractInterpreter]: Visited 96 different actions 276 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-26 23:29:46,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:29:46,106 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:29:47,784 INFO L227 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 74.47% of their original sizes. [2018-10-26 23:29:47,785 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:29:57,976 INFO L415 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-10-26 23:29:57,976 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:29:57,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:29:57,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [4] total 22 [2018-10-26 23:29:57,977 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:29:57,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-26 23:29:57,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-26 23:29:57,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2018-10-26 23:29:57,978 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 20 states. [2018-10-26 23:31:56,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:31:56,819 INFO L93 Difference]: Finished difference Result 1312 states and 2192 transitions. [2018-10-26 23:31:56,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-26 23:31:56,819 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 176 [2018-10-26 23:31:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:31:56,826 INFO L225 Difference]: With dead ends: 1312 [2018-10-26 23:31:56,826 INFO L226 Difference]: Without dead ends: 962 [2018-10-26 23:31:56,828 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 186 GetRequests, 146 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2018-10-26 23:31:56,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2018-10-26 23:31:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 876. [2018-10-26 23:31:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2018-10-26 23:31:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1173 transitions. [2018-10-26 23:31:56,920 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1173 transitions. Word has length 176 [2018-10-26 23:31:56,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:31:56,921 INFO L481 AbstractCegarLoop]: Abstraction has 876 states and 1173 transitions. [2018-10-26 23:31:56,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-26 23:31:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1173 transitions. [2018-10-26 23:31:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-26 23:31:56,925 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:31:56,926 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:31:56,926 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:31:56,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:31:56,926 INFO L82 PathProgramCache]: Analyzing trace with hash 640091935, now seen corresponding path program 1 times [2018-10-26 23:31:56,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:31:56,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:31:56,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:31:56,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:31:56,928 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:31:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:31:57,264 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:31:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-26 23:31:58,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:31:58,148 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:31:58,149 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-10-26 23:31:58,149 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:31:58,155 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:31:58,156 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:31:59,513 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:32:26,123 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:32:26,123 INFO L272 AbstractInterpreter]: Visited 96 different actions 561 times. Merged at 7 different actions 40 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-26 23:32:26,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:32:26,129 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:32:29,651 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 81.82% of their original sizes. [2018-10-26 23:32:29,652 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-26 23:32:34,904 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:32:34,908 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:32:34,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:32:34 BoogieIcfgContainer [2018-10-26 23:32:34,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:32:34,909 INFO L168 Benchmark]: Toolchain (without parser) took 239833.92 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 906.5 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:34,910 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 23:32:34,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.54 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:34,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:34,915 INFO L168 Benchmark]: Boogie Preprocessor took 92.33 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 23:32:34,915 INFO L168 Benchmark]: RCFGBuilder took 3171.65 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: 128.6 MB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:34,916 INFO L168 Benchmark]: TraceAbstraction took 235699.79 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 822.3 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:34,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.54 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 194.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.33 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3171.65 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: 128.6 MB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235699.79 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 822.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 34]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 34). Cancelled while BasicCegarLoop was analyzing trace of length 186 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 235.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 169.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 3352 SDslu, 182 SDs, 0 SdLazy, 1863 SolverSat, 684 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 299 GetRequests, 227 SyntacticMatches, 30 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 35.9s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9930940307384102 AbsIntWeakeningRatio, 0.15550755939524838 AbsIntAvgWeakeningVarsNumRemoved, 456.5680345572354 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 91 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 130311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/101 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown