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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:13:58,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:13:58,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:13:58,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:13:58,194 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:13:58,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:13:58,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:13:58,198 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:13:58,200 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:13:58,201 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:13:58,202 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:13:58,202 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:13:58,203 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:13:58,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:13:58,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:13:58,206 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:13:58,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:13:58,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:13:58,211 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:13:58,213 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:13:58,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:13:58,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:13:58,218 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 02:13:58,228 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 02:13:58,256 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:13:58,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:13:58,259 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:13:58,259 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:13:58,259 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:13:58,260 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:13:58,260 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:13:58,260 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:13:58,260 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:13:58,261 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:13:58,261 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:13:58,261 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:13:58,261 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:13:58,261 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:13:58,262 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:13:58,262 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:13:58,262 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:13:58,262 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:13:58,263 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:13:58,264 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:13:58,264 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:13:58,264 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:13:58,264 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:13:58,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:13:58,265 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:13:58,265 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:13:58,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:13:58,266 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:13:58,266 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:13:58,266 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:13:58,266 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:13:58,266 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:13:58,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:13:58,267 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:13:58,267 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:13:58,267 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:13:58,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:13:58,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:13:58,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:13:58,351 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:13:58,352 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:13:58,353 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-10-25 02:13:58,421 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6f8b8dc2f/775334ec51044838af237379a39d3467/FLAG817bc23d9 [2018-10-25 02:13:59,256 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:13:59,257 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-10-25 02:13:59,304 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6f8b8dc2f/775334ec51044838af237379a39d3467/FLAG817bc23d9 [2018-10-25 02:13:59,325 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6f8b8dc2f/775334ec51044838af237379a39d3467 [2018-10-25 02:13:59,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:13:59,342 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:13:59,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:13:59,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:13:59,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:13:59,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:13:59" (1/1) ... [2018-10-25 02:13:59,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:59, skipping insertion in model container [2018-10-25 02:13:59,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:13:59" (1/1) ... [2018-10-25 02:13:59,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:13:59,641 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:14:01,775 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:14:01,780 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:14:02,838 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:14:02,897 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:14:02,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02 WrapperNode [2018-10-25 02:14:02,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:14:02,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:14:02,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:14:02,899 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:14:02,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:14:03,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:14:03,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:14:03,622 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:14:03,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:03,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:04,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (1/1) ... [2018-10-25 02:14:04,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:14:04,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:14:04,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:14:04,117 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:14:04,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (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 [2018-10-25 02:14:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:14:04,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:14:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-25 02:14:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-25 02:14:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-25 02:14:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-25 02:14:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 02:14:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 02:14:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 02:14:04,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 02:14:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:14:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:14:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:14:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:14:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:14:04,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:14:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:14:04,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:14:22,161 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:14:22,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:14:22 BoogieIcfgContainer [2018-10-25 02:14:22,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:14:22,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:14:22,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:14:22,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:14:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:13:59" (1/3) ... [2018-10-25 02:14:22,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d96a119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:14:22, skipping insertion in model container [2018-10-25 02:14:22,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:14:02" (2/3) ... [2018-10-25 02:14:22,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d96a119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:14:22, skipping insertion in model container [2018-10-25 02:14:22,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:14:22" (3/3) ... [2018-10-25 02:14:22,171 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label44_true-unreach-call.c [2018-10-25 02:14:22,182 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:14:22,198 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:14:22,217 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:14:22,288 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:14:22,288 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:14:22,288 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:14:22,289 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:14:22,289 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:14:22,289 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:14:22,289 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:14:22,289 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:14:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-25 02:14:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-25 02:14:22,374 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:22,375 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] [2018-10-25 02:14:22,380 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:22,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:22,387 INFO L82 PathProgramCache]: Analyzing trace with hash -6596318, now seen corresponding path program 1 times [2018-10-25 02:14:22,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:22,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:22,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:22,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:22,452 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:22,889 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:14:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:23,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:23,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 02:14:23,013 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:23,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 02:14:23,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 02:14:23,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 02:14:23,041 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-25 02:14:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:43,642 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-10-25 02:14:43,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 02:14:43,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-10-25 02:14:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:43,696 INFO L225 Difference]: With dead ends: 4998 [2018-10-25 02:14:43,697 INFO L226 Difference]: Without dead ends: 3218 [2018-10-25 02:14:43,709 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 [2018-10-25 02:14:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-10-25 02:14:43,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-10-25 02:14:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-25 02:14:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-10-25 02:14:43,949 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 41 [2018-10-25 02:14:43,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:43,950 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-10-25 02:14:43,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 02:14:43,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-10-25 02:14:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-25 02:14:43,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:43,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:14:43,966 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:43,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:43,967 INFO L82 PathProgramCache]: Analyzing trace with hash -337507924, now seen corresponding path program 1 times [2018-10-25 02:14:43,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:43,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:43,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:43,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:43,970 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:44,308 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:14:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:44,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:44,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:14:44,704 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:44,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:14:44,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:14:44,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:14:44,707 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-10-25 02:15:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:15:13,790 INFO L93 Difference]: Finished difference Result 10758 states and 19794 transitions. [2018-10-25 02:15:13,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:15:13,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-25 02:15:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:15:13,832 INFO L225 Difference]: With dead ends: 10758 [2018-10-25 02:15:13,832 INFO L226 Difference]: Without dead ends: 7549 [2018-10-25 02:15:13,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:15:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7549 states. [2018-10-25 02:15:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7549 to 7512. [2018-10-25 02:15:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7512 states. [2018-10-25 02:15:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 12475 transitions. [2018-10-25 02:15:14,040 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 12475 transitions. Word has length 113 [2018-10-25 02:15:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:15:14,041 INFO L481 AbstractCegarLoop]: Abstraction has 7512 states and 12475 transitions. [2018-10-25 02:15:14,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:15:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 12475 transitions. [2018-10-25 02:15:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-25 02:15:14,045 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:15:14,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:15:14,046 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:15:14,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:15:14,049 INFO L82 PathProgramCache]: Analyzing trace with hash -392526345, now seen corresponding path program 1 times [2018-10-25 02:15:14,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:15:14,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:14,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:15:14,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:14,051 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:15:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:15:14,340 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:15:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:15:14,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:15:14,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:15:14,443 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:15:14,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:15:14,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:15:14,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:15:14,444 INFO L87 Difference]: Start difference. First operand 7512 states and 12475 transitions. Second operand 6 states. [2018-10-25 02:15:41,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:15:41,077 INFO L93 Difference]: Finished difference Result 25356 states and 43048 transitions. [2018-10-25 02:15:41,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:15:41,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-25 02:15:41,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:15:41,164 INFO L225 Difference]: With dead ends: 25356 [2018-10-25 02:15:41,164 INFO L226 Difference]: Without dead ends: 17850 [2018-10-25 02:15:41,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:15:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17850 states. [2018-10-25 02:15:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17850 to 17667. [2018-10-25 02:15:41,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17667 states. [2018-10-25 02:15:41,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17667 states to 17667 states and 28167 transitions. [2018-10-25 02:15:41,622 INFO L78 Accepts]: Start accepts. Automaton has 17667 states and 28167 transitions. Word has length 115 [2018-10-25 02:15:41,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:15:41,623 INFO L481 AbstractCegarLoop]: Abstraction has 17667 states and 28167 transitions. [2018-10-25 02:15:41,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:15:41,623 INFO L276 IsEmpty]: Start isEmpty. Operand 17667 states and 28167 transitions. [2018-10-25 02:15:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-25 02:15:41,628 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:15:41,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:15:41,629 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:15:41,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:15:41,630 INFO L82 PathProgramCache]: Analyzing trace with hash 2002482604, now seen corresponding path program 1 times [2018-10-25 02:15:41,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:15:41,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:41,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:15:41,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:41,631 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:15:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:15:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:15:41,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:15:41,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 02:15:41,927 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:15:41,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 02:15:41,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 02:15:41,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 02:15:41,928 INFO L87 Difference]: Start difference. First operand 17667 states and 28167 transitions. Second operand 5 states. [2018-10-25 02:16:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:16:08,073 INFO L93 Difference]: Finished difference Result 51111 states and 82870 transitions. [2018-10-25 02:16:08,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:16:08,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-10-25 02:16:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:16:08,218 INFO L225 Difference]: With dead ends: 51111 [2018-10-25 02:16:08,218 INFO L226 Difference]: Without dead ends: 33450 [2018-10-25 02:16:08,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:16:08,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33450 states. [2018-10-25 02:16:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33450 to 32974. [2018-10-25 02:16:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32974 states. [2018-10-25 02:16:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 47732 transitions. [2018-10-25 02:16:09,113 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 47732 transitions. Word has length 146 [2018-10-25 02:16:09,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:16:09,114 INFO L481 AbstractCegarLoop]: Abstraction has 32974 states and 47732 transitions. [2018-10-25 02:16:09,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 02:16:09,114 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 47732 transitions. [2018-10-25 02:16:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-25 02:16:09,125 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:16:09,126 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, 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] [2018-10-25 02:16:09,126 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:16:09,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:16:09,127 INFO L82 PathProgramCache]: Analyzing trace with hash -995199702, now seen corresponding path program 1 times [2018-10-25 02:16:09,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:16:09,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:16:09,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:16:09,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:16:09,130 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:16:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:16:09,423 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:16:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 68 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 02:16:09,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:16:09,804 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:16:09,806 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-25 02:16:09,808 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5454], [5456], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-25 02:16:09,858 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:16:09,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:16:10,376 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 02:16:10,377 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 02:16:10,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:16:10,423 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 02:16:11,034 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.44% of their original sizes. [2018-10-25 02:16:11,034 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 02:16:11,256 INFO L413 sIntCurrentIteration]: We have 211 unified AI predicates [2018-10-25 02:16:11,257 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 02:16:11,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 02:16:11,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 02:16:11,258 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:16:11,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:16:11,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:16:11,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:16:11,260 INFO L87 Difference]: Start difference. First operand 32974 states and 47732 transitions. Second operand 6 states. Received shutdown request... [2018-10-25 02:17:55,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 02:17:55,159 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 02:17:55,164 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 02:17:55,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 02:17:55 BoogieIcfgContainer [2018-10-25 02:17:55,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 02:17:55,165 INFO L168 Benchmark]: Toolchain (without parser) took 235825.45 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 2.2 GB in the end (delta: -754.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-25 02:17:55,166 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. [2018-10-25 02:17:55,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3554.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:55,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 722.89 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 868.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:55,169 INFO L168 Benchmark]: Boogie Preprocessor took 494.67 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:55,169 INFO L168 Benchmark]: RCFGBuilder took 18045.50 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 155.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 530.0 MB). Peak memory consumption was 685.7 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:55,170 INFO L168 Benchmark]: TraceAbstraction took 213000.73 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -463.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-25 02:17:55,176 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 3554.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 722.89 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 868.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 494.67 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18045.50 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 155.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 530.0 MB). Peak memory consumption was 685.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213000.73 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -463.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while BasicCegarLoop was constructing difference of abstraction (32974states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (12451 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 212.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 206.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2970 SDtfs, 22285 SDslu, 3134 SDs, 0 SdLazy, 40814 SolverSat, 9653 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 177.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 246 GetRequests, 216 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32974occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9977583375481585 AbsIntWeakeningRatio, 0.13270142180094788 AbsIntAvgWeakeningVarsNumRemoved, 17.09478672985782 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 699 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 627 NumberOfCodeBlocks, 627 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 622 ConstructedInterpolants, 0 QuantifiedInterpolants, 301082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 175/240 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown