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/Problem13_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 02:52:37,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 02:52:37,317 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 02:52:37,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 02:52:37,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 02:52:37,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 02:52:37,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 02:52:37,338 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 02:52:37,341 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 02:52:37,342 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 02:52:37,350 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 02:52:37,350 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 02:52:37,351 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 02:52:37,352 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 02:52:37,355 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 02:52:37,356 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 02:52:37,357 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 02:52:37,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 02:52:37,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 02:52:37,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 02:52:37,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 02:52:37,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 02:52:37,374 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 02:52:37,386 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 02:52:37,387 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 02:52:37,388 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 02:52:37,388 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 02:52:37,389 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 [2018-10-27 02:52:37,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 02:52:37,415 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 02:52:37,416 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 02:52:37,416 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 02:52:37,416 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 02:52:37,417 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 02:52:37,417 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 02:52:37,417 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 02:52:37,417 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 02:52:37,418 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 02:52:37,418 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 02:52:37,418 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 02:52:37,419 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 02:52:37,419 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 02:52:37,419 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 02:52:37,419 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 02:52:37,420 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 02:52:37,420 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 02:52:37,420 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 02:52:37,420 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 02:52:37,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 02:52:37,421 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 02:52:37,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 02:52:37,423 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 02:52:37,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:52:37,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 02:52:37,423 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 02:52:37,423 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 02:52:37,424 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 02:52:37,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 02:52:37,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 02:52:37,424 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 02:52:37,424 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 02:52:37,424 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 02:52:37,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 02:52:37,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 02:52:37,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 02:52:37,498 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 02:52:37,499 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 02:52:37,499 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-10-27 02:52:37,575 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4a9d7002e/0c34f02c00d14f6587f72dc170dad623/FLAG11b61e6c0 [2018-10-27 02:52:38,345 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 02:52:38,346 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-10-27 02:52:38,384 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4a9d7002e/0c34f02c00d14f6587f72dc170dad623/FLAG11b61e6c0 [2018-10-27 02:52:38,406 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4a9d7002e/0c34f02c00d14f6587f72dc170dad623 [2018-10-27 02:52:38,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 02:52:38,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 02:52:38,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 02:52:38,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 02:52:38,430 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 02:52:38,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:52:38" (1/1) ... [2018-10-27 02:52:38,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:38, skipping insertion in model container [2018-10-27 02:52:38,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:52:38" (1/1) ... [2018-10-27 02:52:38,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 02:52:38,640 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 02:52:40,160 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:52:40,165 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 02:52:41,240 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:52:41,278 INFO L193 MainTranslator]: Completed translation [2018-10-27 02:52:41,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41 WrapperNode [2018-10-27 02:52:41,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 02:52:41,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 02:52:41,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 02:52:41,280 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 02:52:41,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:41,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:41,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 02:52:41,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 02:52:41,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 02:52:41,827 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 02:52:41,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:41,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:41,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:41,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:41,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:42,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:42,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... [2018-10-27 02:52:42,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 02:52:42,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 02:52:42,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 02:52:42,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 02:52:42,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:52:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 02:52:42,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 02:52:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 02:52:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 02:52:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 02:52:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 02:52:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 02:52:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 02:52:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 02:52:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 02:52:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 02:52:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 02:52:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 02:52:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 02:52:52,886 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 02:52:52,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:52:52 BoogieIcfgContainer [2018-10-27 02:52:52,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 02:52:52,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 02:52:52,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 02:52:52,892 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 02:52:52,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:52:38" (1/3) ... [2018-10-27 02:52:52,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5416ab2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:52:52, skipping insertion in model container [2018-10-27 02:52:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:52:41" (2/3) ... [2018-10-27 02:52:52,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5416ab2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:52:52, skipping insertion in model container [2018-10-27 02:52:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:52:52" (3/3) ... [2018-10-27 02:52:52,895 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label13_true-unreach-call.c [2018-10-27 02:52:52,905 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 02:52:52,915 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 02:52:52,932 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 02:52:52,979 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 02:52:52,980 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 02:52:52,980 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 02:52:52,980 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 02:52:52,980 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 02:52:52,980 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 02:52:52,980 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 02:52:52,981 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 02:52:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 02:52:53,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-27 02:52:53,031 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:52:53,033 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:52:53,035 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:52:53,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:52:53,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1465464788, now seen corresponding path program 1 times [2018-10-27 02:52:53,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:52:53,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:52:53,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:52:53,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:52:53,092 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:52:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:52:53,606 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 02:52:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:52:53,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:52:53,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:52:53,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:52:53,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:52:53,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:52:53,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:52:53,711 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-27 02:53:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:53:08,938 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-27 02:53:08,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:53:08,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2018-10-27 02:53:08,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:53:08,990 INFO L225 Difference]: With dead ends: 4063 [2018-10-27 02:53:08,990 INFO L226 Difference]: Without dead ends: 2937 [2018-10-27 02:53:09,002 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:53:09,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-27 02:53:09,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-27 02:53:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-27 02:53:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-27 02:53:09,177 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 64 [2018-10-27 02:53:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:53:09,180 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-27 02:53:09,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:53:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-27 02:53:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 02:53:09,192 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:53:09,192 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:53:09,193 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:53:09,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:53:09,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1113995663, now seen corresponding path program 1 times [2018-10-27 02:53:09,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:53:09,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:09,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:53:09,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:09,195 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:53:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:53:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:53:09,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:53:09,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:53:09,772 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:53:09,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:53:09,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:53:09,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:53:09,775 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-27 02:53:25,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:53:25,955 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-27 02:53:25,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:53:25,956 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-10-27 02:53:25,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:53:25,988 INFO L225 Difference]: With dead ends: 7277 [2018-10-27 02:53:25,988 INFO L226 Difference]: Without dead ends: 5301 [2018-10-27 02:53:25,999 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 02:53:26,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-27 02:53:26,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-27 02:53:26,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-27 02:53:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-27 02:53:26,138 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 135 [2018-10-27 02:53:26,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:53:26,140 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-27 02:53:26,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:53:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-27 02:53:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-27 02:53:26,152 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:53:26,153 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:53:26,155 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:53:26,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:53:26,156 INFO L82 PathProgramCache]: Analyzing trace with hash -303243424, now seen corresponding path program 1 times [2018-10-27 02:53:26,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:53:26,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:26,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:53:26,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:26,157 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:53:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:53:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:53:26,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:53:26,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:53:26,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:53:26,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:53:26,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:53:26,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:53:26,394 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-27 02:53:39,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:53:39,971 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-27 02:53:39,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:53:39,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-27 02:53:39,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:53:40,018 INFO L225 Difference]: With dead ends: 13914 [2018-10-27 02:53:40,018 INFO L226 Difference]: Without dead ends: 8668 [2018-10-27 02:53:40,040 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 02:53:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-27 02:53:40,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-27 02:53:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-27 02:53:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-27 02:53:40,252 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 138 [2018-10-27 02:53:40,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:53:40,253 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-27 02:53:40,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:53:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-27 02:53:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-27 02:53:40,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:53:40,257 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:53:40,257 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:53:40,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:53:40,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1626850484, now seen corresponding path program 1 times [2018-10-27 02:53:40,258 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:53:40,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:40,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:53:40,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:40,259 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:53:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:53:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:53:40,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:53:40,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 02:53:40,591 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:53:40,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 02:53:40,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 02:53:40,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 02:53:40,593 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-27 02:53:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:53:54,072 INFO L93 Difference]: Finished difference Result 25982 states and 40339 transitions. [2018-10-27 02:53:54,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 02:53:54,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2018-10-27 02:53:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:53:54,145 INFO L225 Difference]: With dead ends: 25982 [2018-10-27 02:53:54,145 INFO L226 Difference]: Without dead ends: 17383 [2018-10-27 02:53:54,172 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 [2018-10-27 02:53:54,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17383 states. [2018-10-27 02:53:54,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17383 to 17120. [2018-10-27 02:53:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17120 states. [2018-10-27 02:53:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17120 states to 17120 states and 24327 transitions. [2018-10-27 02:53:54,554 INFO L78 Accepts]: Start accepts. Automaton has 17120 states and 24327 transitions. Word has length 148 [2018-10-27 02:53:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:53:54,554 INFO L481 AbstractCegarLoop]: Abstraction has 17120 states and 24327 transitions. [2018-10-27 02:53:54,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 02:53:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 17120 states and 24327 transitions. [2018-10-27 02:53:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-27 02:53:54,558 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:53:54,559 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:53:54,559 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:53:54,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:53:54,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2091389760, now seen corresponding path program 1 times [2018-10-27 02:53:54,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:53:54,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:54,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:53:54,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:53:54,561 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:53:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:53:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:53:54,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:53:54,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:53:54,798 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:53:54,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:53:54,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:53:54,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:53:54,800 INFO L87 Difference]: Start difference. First operand 17120 states and 24327 transitions. Second operand 4 states. [2018-10-27 02:54:07,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:54:07,495 INFO L93 Difference]: Finished difference Result 41061 states and 60639 transitions. [2018-10-27 02:54:07,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:54:07,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-10-27 02:54:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:54:07,596 INFO L225 Difference]: With dead ends: 41061 [2018-10-27 02:54:07,596 INFO L226 Difference]: Without dead ends: 23947 [2018-10-27 02:54:07,656 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:54:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23947 states. [2018-10-27 02:54:08,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23947 to 23901. [2018-10-27 02:54:08,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23901 states. [2018-10-27 02:54:08,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23901 states to 23901 states and 33757 transitions. [2018-10-27 02:54:08,195 INFO L78 Accepts]: Start accepts. Automaton has 23901 states and 33757 transitions. Word has length 165 [2018-10-27 02:54:08,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:54:08,196 INFO L481 AbstractCegarLoop]: Abstraction has 23901 states and 33757 transitions. [2018-10-27 02:54:08,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:54:08,196 INFO L276 IsEmpty]: Start isEmpty. Operand 23901 states and 33757 transitions. [2018-10-27 02:54:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-27 02:54:08,204 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:54:08,204 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:54:08,204 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:54:08,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:54:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1502543096, now seen corresponding path program 1 times [2018-10-27 02:54:08,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:54:08,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:54:08,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:54:08,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:54:08,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:54:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:54:08,465 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:54:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:54:08,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:54:08,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:54:08,854 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:54:08,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:54:08,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:54:08,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:54:08,856 INFO L87 Difference]: Start difference. First operand 23901 states and 33757 transitions. Second operand 6 states. [2018-10-27 02:54:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:54:20,307 INFO L93 Difference]: Finished difference Result 65342 states and 103816 transitions. [2018-10-27 02:54:20,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:54:20,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-10-27 02:54:20,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:54:20,506 INFO L225 Difference]: With dead ends: 65342 [2018-10-27 02:54:20,507 INFO L226 Difference]: Without dead ends: 41447 [2018-10-27 02:54:20,569 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 [2018-10-27 02:54:20,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41447 states. [2018-10-27 02:54:21,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41447 to 41295. [2018-10-27 02:54:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41295 states. [2018-10-27 02:54:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41295 states to 41295 states and 60244 transitions. [2018-10-27 02:54:21,569 INFO L78 Accepts]: Start accepts. Automaton has 41295 states and 60244 transitions. Word has length 174 [2018-10-27 02:54:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:54:21,571 INFO L481 AbstractCegarLoop]: Abstraction has 41295 states and 60244 transitions. [2018-10-27 02:54:21,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:54:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 41295 states and 60244 transitions. [2018-10-27 02:54:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-10-27 02:54:21,593 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:54:21,594 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:54:21,594 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:54:21,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:54:21,595 INFO L82 PathProgramCache]: Analyzing trace with hash -621888907, now seen corresponding path program 1 times [2018-10-27 02:54:21,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:54:21,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:54:21,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:54:21,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:54:21,601 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:54:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:54:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:54:22,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:54:22,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:54:22,046 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:54:22,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:54:22,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:54:22,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:54:22,047 INFO L87 Difference]: Start difference. First operand 41295 states and 60244 transitions. Second operand 6 states. [2018-10-27 02:54:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:54:43,955 INFO L93 Difference]: Finished difference Result 138745 states and 237867 transitions. [2018-10-27 02:54:43,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 02:54:43,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2018-10-27 02:54:43,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:54:44,591 INFO L225 Difference]: With dead ends: 138745 [2018-10-27 02:54:44,592 INFO L226 Difference]: Without dead ends: 97456 [2018-10-27 02:54:44,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 02:54:44,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97456 states. [2018-10-27 02:54:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97456 to 96919. [2018-10-27 02:54:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96919 states. [2018-10-27 02:54:47,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96919 states to 96919 states and 141593 transitions. [2018-10-27 02:54:47,934 INFO L78 Accepts]: Start accepts. Automaton has 96919 states and 141593 transitions. Word has length 222 [2018-10-27 02:54:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:54:47,935 INFO L481 AbstractCegarLoop]: Abstraction has 96919 states and 141593 transitions. [2018-10-27 02:54:47,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:54:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 96919 states and 141593 transitions. [2018-10-27 02:54:47,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-10-27 02:54:47,966 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:54:47,966 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:54:47,966 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:54:47,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:54:47,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1548106794, now seen corresponding path program 1 times [2018-10-27 02:54:47,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:54:47,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:54:47,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:54:47,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:54:47,968 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:54:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:54:48,324 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:54:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 222 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:54:48,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:54:48,400 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:54:48,401 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-10-27 02:54:48,403 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3039], [3041], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3308], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3358], [3361], [3365], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 02:54:48,485 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:54:48,486 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:54:56,150 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:54:56,151 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 02:54:56,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:54:56,161 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:55:01,818 INFO L227 lantSequenceWeakener]: Weakened 272 states. On average, predicates are now at 71.72% of their original sizes. [2018-10-27 02:55:01,818 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:55:03,475 INFO L415 sIntCurrentIteration]: We unified 294 AI predicates to 294 [2018-10-27 02:55:03,475 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:55:03,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:55:03,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-27 02:55:03,477 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:55:03,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 02:55:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 02:55:03,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-27 02:55:03,478 INFO L87 Difference]: Start difference. First operand 96919 states and 141593 transitions. Second operand 11 states. [2018-10-27 02:55:36,798 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 02:56:14,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 02:56:14,439 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 02:56:14,445 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 02:56:14,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:56:14 BoogieIcfgContainer [2018-10-27 02:56:14,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 02:56:14,446 INFO L168 Benchmark]: Toolchain (without parser) took 216026.39 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.0 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-27 02:56:14,447 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. [2018-10-27 02:56:14,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2856.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-27 02:56:14,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 546.56 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 839.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-27 02:56:14,450 INFO L168 Benchmark]: Boogie Preprocessor took 282.60 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: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2018-10-27 02:56:14,450 INFO L168 Benchmark]: RCFGBuilder took 10777.18 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 163.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 44.6 MB). Peak memory consumption was 631.6 MB. Max. memory is 7.1 GB. [2018-10-27 02:56:14,451 INFO L168 Benchmark]: TraceAbstraction took 201557.43 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.3 GB in the end (delta: 851.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-27 02:56:14,457 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 2856.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 546.56 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 839.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 282.60 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: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10777.18 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 163.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 44.6 MB). Peak memory consumption was 631.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201557.43 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.3 GB in the end (delta: 851.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (96919states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (3119 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 201.4s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 177.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3461 SDtfs, 27115 SDslu, 3586 SDs, 0 SdLazy, 40551 SolverSat, 12041 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 135.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 359 GetRequests, 304 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96919occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9968393511250652 AbsIntWeakeningRatio, 0.10204081632653061 AbsIntAvgWeakeningVarsNumRemoved, 22.738095238095237 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 2065 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1341 NumberOfCodeBlocks, 1341 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1333 ConstructedInterpolants, 0 QuantifiedInterpolants, 937094 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 564/566 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown