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/Problem02_label56_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:34:31,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:34:31,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:34:31,385 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:34:31,386 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:34:31,387 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:34:31,388 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:34:31,390 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:34:31,391 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:34:31,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:34:31,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:34:31,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:34:31,394 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:34:31,395 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:34:31,396 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:34:31,397 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:34:31,398 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:34:31,400 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:34:31,402 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:34:31,404 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:34:31,405 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:34:31,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:34:31,412 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:34:31,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:34:31,460 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:34:31,460 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:34:31,464 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:34:31,464 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:34:31,464 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:34:31,465 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:34:31,465 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:34:31,465 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:34:31,465 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:34:31,465 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:34:31,466 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:34:31,466 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:34:31,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:34:31,467 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:34:31,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:34:31,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:34:31,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:34:31,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:34:31,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:34:31,468 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:34:31,469 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:34:31,470 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:34:31,471 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:34:31,471 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:34:31,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:34:31,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:34:31,472 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:34:31,472 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:34:31,472 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:34:31,472 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:34:31,472 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:34:31,472 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:34:31,473 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:34:31,473 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:34:31,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:34:31,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:34:31,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:34:31,537 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:34:31,537 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:34:31,538 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c [2018-10-24 19:34:31,599 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c2a616ee7/67fa5351441340ef8aa9c4f5583f68e5/FLAG7e3a85997 [2018-10-24 19:34:32,183 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:34:32,184 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c [2018-10-24 19:34:32,213 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c2a616ee7/67fa5351441340ef8aa9c4f5583f68e5/FLAG7e3a85997 [2018-10-24 19:34:32,242 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c2a616ee7/67fa5351441340ef8aa9c4f5583f68e5 [2018-10-24 19:34:32,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:34:32,263 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:34:32,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:34:32,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:34:32,270 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:34:32,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:34:32" (1/1) ... [2018-10-24 19:34:32,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8d5e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:32, skipping insertion in model container [2018-10-24 19:34:32,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:34:32" (1/1) ... [2018-10-24 19:34:32,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:34:32,378 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:34:32,925 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:34:32,933 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:34:33,038 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:34:33,056 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:34:33,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33 WrapperNode [2018-10-24 19:34:33,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:34:33,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:34:33,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:34:33,058 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:34:33,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:34:33,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:34:33,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:34:33,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:34:33,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... [2018-10-24 19:34:33,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:34:33,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:34:33,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:34:33,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:34:33,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:34:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:34:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:34:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:34:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:34:33,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:34:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:34:33,409 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:34:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:34:36,625 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:34:36,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:34:36 BoogieIcfgContainer [2018-10-24 19:34:36,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:34:36,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:34:36,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:34:36,634 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:34:36,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:34:32" (1/3) ... [2018-10-24 19:34:36,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:34:36, skipping insertion in model container [2018-10-24 19:34:36,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:34:33" (2/3) ... [2018-10-24 19:34:36,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:34:36, skipping insertion in model container [2018-10-24 19:34:36,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:34:36" (3/3) ... [2018-10-24 19:34:36,638 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label56_true-unreach-call_false-termination.c [2018-10-24 19:34:36,650 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:34:36,666 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:34:36,686 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:34:36,745 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:34:36,745 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:34:36,746 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:34:36,746 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:34:36,746 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:34:36,746 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:34:36,747 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:34:36,747 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:34:36,794 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-24 19:34:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 19:34:36,815 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:36,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:36,821 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:36,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1901339872, now seen corresponding path program 1 times [2018-10-24 19:34:36,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:36,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:36,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:36,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:36,892 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:37,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:37,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:34:37,613 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:37,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:34:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:34:37,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:34:37,644 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-24 19:34:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:39,338 INFO L93 Difference]: Finished difference Result 621 states and 1059 transitions. [2018-10-24 19:34:39,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:34:39,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2018-10-24 19:34:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:39,362 INFO L225 Difference]: With dead ends: 621 [2018-10-24 19:34:39,363 INFO L226 Difference]: Without dead ends: 382 [2018-10-24 19:34:39,371 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 [2018-10-24 19:34:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-24 19:34:39,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-24 19:34:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-24 19:34:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 608 transitions. [2018-10-24 19:34:39,485 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 608 transitions. Word has length 130 [2018-10-24 19:34:39,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:39,486 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 608 transitions. [2018-10-24 19:34:39,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:34:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 608 transitions. [2018-10-24 19:34:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 19:34:39,499 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:39,508 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:39,509 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:39,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:39,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1819679469, now seen corresponding path program 1 times [2018-10-24 19:34:39,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:39,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:39,511 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:39,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:39,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:39,991 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:39,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:39,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:39,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:39,994 INFO L87 Difference]: Start difference. First operand 382 states and 608 transitions. Second operand 5 states. [2018-10-24 19:34:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:41,490 INFO L93 Difference]: Finished difference Result 903 states and 1497 transitions. [2018-10-24 19:34:41,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:41,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2018-10-24 19:34:41,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:41,496 INFO L225 Difference]: With dead ends: 903 [2018-10-24 19:34:41,496 INFO L226 Difference]: Without dead ends: 381 [2018-10-24 19:34:41,503 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-10-24 19:34:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-10-24 19:34:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-10-24 19:34:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 602 transitions. [2018-10-24 19:34:41,528 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 602 transitions. Word has length 139 [2018-10-24 19:34:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:41,529 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 602 transitions. [2018-10-24 19:34:41,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:41,529 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 602 transitions. [2018-10-24 19:34:41,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 19:34:41,532 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:41,532 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:41,533 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:41,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:41,533 INFO L82 PathProgramCache]: Analyzing trace with hash 484067553, now seen corresponding path program 1 times [2018-10-24 19:34:41,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:41,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:41,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:41,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:41,535 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:42,294 WARN L179 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-10-24 19:34:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:42,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:42,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:42,464 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:42,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:42,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:42,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:42,466 INFO L87 Difference]: Start difference. First operand 381 states and 602 transitions. Second operand 5 states. [2018-10-24 19:34:44,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:44,295 INFO L93 Difference]: Finished difference Result 901 states and 1482 transitions. [2018-10-24 19:34:44,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:44,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-10-24 19:34:44,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:44,299 INFO L225 Difference]: With dead ends: 901 [2018-10-24 19:34:44,299 INFO L226 Difference]: Without dead ends: 380 [2018-10-24 19:34:44,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-10-24 19:34:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-10-24 19:34:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-24 19:34:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 594 transitions. [2018-10-24 19:34:44,322 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 594 transitions. Word has length 145 [2018-10-24 19:34:44,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:44,322 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 594 transitions. [2018-10-24 19:34:44,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 594 transitions. [2018-10-24 19:34:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-24 19:34:44,325 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:44,325 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2018-10-24 19:34:44,326 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:44,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:44,326 INFO L82 PathProgramCache]: Analyzing trace with hash 191966186, now seen corresponding path program 1 times [2018-10-24 19:34:44,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:44,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:44,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:44,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:44,328 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:44,540 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:34:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:44,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:44,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:34:44,587 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:44,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:34:44,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:34:44,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:34:44,588 INFO L87 Difference]: Start difference. First operand 380 states and 594 transitions. Second operand 6 states. [2018-10-24 19:34:47,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:47,802 INFO L93 Difference]: Finished difference Result 1193 states and 1942 transitions. [2018-10-24 19:34:47,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:34:47,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-10-24 19:34:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:47,809 INFO L225 Difference]: With dead ends: 1193 [2018-10-24 19:34:47,809 INFO L226 Difference]: Without dead ends: 819 [2018-10-24 19:34:47,811 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 [2018-10-24 19:34:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2018-10-24 19:34:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 807. [2018-10-24 19:34:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2018-10-24 19:34:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1208 transitions. [2018-10-24 19:34:47,850 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1208 transitions. Word has length 153 [2018-10-24 19:34:47,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:47,851 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 1208 transitions. [2018-10-24 19:34:47,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:34:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1208 transitions. [2018-10-24 19:34:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 19:34:47,855 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:47,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:47,855 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:47,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:47,856 INFO L82 PathProgramCache]: Analyzing trace with hash -684578330, now seen corresponding path program 1 times [2018-10-24 19:34:47,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:47,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:47,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:47,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:47,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:48,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:48,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:48,104 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:48,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:48,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:48,105 INFO L87 Difference]: Start difference. First operand 807 states and 1208 transitions. Second operand 5 states. [2018-10-24 19:34:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:49,217 INFO L93 Difference]: Finished difference Result 1753 states and 2669 transitions. [2018-10-24 19:34:49,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:49,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-10-24 19:34:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:49,238 INFO L225 Difference]: With dead ends: 1753 [2018-10-24 19:34:49,238 INFO L226 Difference]: Without dead ends: 804 [2018-10-24 19:34:49,243 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:49,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2018-10-24 19:34:49,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2018-10-24 19:34:49,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-10-24 19:34:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1190 transitions. [2018-10-24 19:34:49,279 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1190 transitions. Word has length 155 [2018-10-24 19:34:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:49,279 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1190 transitions. [2018-10-24 19:34:49,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1190 transitions. [2018-10-24 19:34:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 19:34:49,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:49,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:49,284 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:49,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:49,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1228371938, now seen corresponding path program 1 times [2018-10-24 19:34:49,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:49,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:49,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:49,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:49,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:49,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:49,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:49,676 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:49,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:49,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:49,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:49,677 INFO L87 Difference]: Start difference. First operand 804 states and 1190 transitions. Second operand 5 states. [2018-10-24 19:34:50,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:50,654 INFO L93 Difference]: Finished difference Result 1747 states and 2630 transitions. [2018-10-24 19:34:50,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:50,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-10-24 19:34:50,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:50,662 INFO L225 Difference]: With dead ends: 1747 [2018-10-24 19:34:50,662 INFO L226 Difference]: Without dead ends: 801 [2018-10-24 19:34:50,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2018-10-24 19:34:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2018-10-24 19:34:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2018-10-24 19:34:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1169 transitions. [2018-10-24 19:34:50,689 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1169 transitions. Word has length 157 [2018-10-24 19:34:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:50,689 INFO L481 AbstractCegarLoop]: Abstraction has 801 states and 1169 transitions. [2018-10-24 19:34:50,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1169 transitions. [2018-10-24 19:34:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-24 19:34:50,693 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:50,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:50,694 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:50,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:50,694 INFO L82 PathProgramCache]: Analyzing trace with hash -977337382, now seen corresponding path program 1 times [2018-10-24 19:34:50,694 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:50,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:50,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:50,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:50,696 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:50,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:50,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:34:50,857 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:50,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:34:50,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:34:50,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:34:50,858 INFO L87 Difference]: Start difference. First operand 801 states and 1169 transitions. Second operand 6 states. [2018-10-24 19:34:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:52,933 INFO L93 Difference]: Finished difference Result 2381 states and 3621 transitions. [2018-10-24 19:34:52,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:34:52,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2018-10-24 19:34:52,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:52,945 INFO L225 Difference]: With dead ends: 2381 [2018-10-24 19:34:52,945 INFO L226 Difference]: Without dead ends: 1586 [2018-10-24 19:34:52,950 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:34:52,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2018-10-24 19:34:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1558. [2018-10-24 19:34:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2018-10-24 19:34:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2225 transitions. [2018-10-24 19:34:53,000 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2225 transitions. Word has length 161 [2018-10-24 19:34:53,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:53,001 INFO L481 AbstractCegarLoop]: Abstraction has 1558 states and 2225 transitions. [2018-10-24 19:34:53,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:34:53,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2225 transitions. [2018-10-24 19:34:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-10-24 19:34:53,006 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:53,007 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2018-10-24 19:34:53,007 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:53,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:53,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1994030385, now seen corresponding path program 1 times [2018-10-24 19:34:53,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:53,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:53,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:53,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:53,009 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:53,289 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-24 19:34:53,846 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 19:34:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:54,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:34:54,021 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:34:54,022 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 168 with the following transitions: [2018-10-24 19:34:54,024 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [711], [713], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:34:54,105 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:34:54,105 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:36:16,869 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:36:16,871 INFO L272 AbstractInterpreter]: Visited 134 different actions 524 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-10-24 19:36:16,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:36:16,885 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:36:24,088 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 91.67% of their original sizes. [2018-10-24 19:36:24,089 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 19:38:51,620 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:38:51,627 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:38:51,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:38:51 BoogieIcfgContainer [2018-10-24 19:38:51,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:38:51,628 INFO L168 Benchmark]: Toolchain (without parser) took 259367.51 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 941.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:51,630 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:38:51,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:51,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -812.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:51,632 INFO L168 Benchmark]: Boogie Preprocessor took 75.65 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:38:51,633 INFO L168 Benchmark]: RCFGBuilder took 3292.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.3 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:51,634 INFO L168 Benchmark]: TraceAbstraction took 255000.30 ms. Allocated memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -606.0 MB). Peak memory consumption was 896.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:51,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 199.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -812.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.65 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3292.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.3 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255000.30 ms. Allocated memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -606.0 MB). Peak memory consumption was 896.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 541]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 541). Cancelled while BasicCegarLoop was analyzing trace of length 168 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 254.8s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 12.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 854 SDtfs, 3992 SDslu, 687 SDs, 0 SdLazy, 5049 SolverSat, 1075 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1558occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 82.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9944214982261911 AbsIntWeakeningRatio, 0.19879518072289157 AbsIntAvgWeakeningVarsNumRemoved, 1330.301204819277 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1033 ConstructedInterpolants, 0 QuantifiedInterpolants, 1204986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 112/112 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown