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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:05:57,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:05:57,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:05:57,975 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:05:57,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:05:57,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:05:57,977 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:05:57,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:05:57,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:05:57,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:05:57,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:05:57,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:05:57,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:05:57,985 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:05:57,986 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:05:57,987 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:05:57,987 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:05:57,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:05:57,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:05:57,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:05:57,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:05:57,995 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:05:57,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 21:05:57,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 21:05:57,998 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 21:05:57,999 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 21:05:58,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 21:05:58,001 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 21:05:58,002 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 21:05:58,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 21:05:58,003 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 21:05:58,004 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 21:05:58,006 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 21:05:58,021 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:05:58,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:05:58,023 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:05:58,023 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 21:05:58,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 21:05:58,024 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 21:05:58,024 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 21:05:58,024 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:05:58,024 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:05:58,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:05:58,025 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:05:58,025 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:05:58,025 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:05:58,025 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:05:58,026 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:05:58,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:05:58,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:05:58,026 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:05:58,026 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:05:58,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:05:58,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:05:58,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:05:58,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:05:58,027 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 21:05:58,027 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:05:58,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:05:58,028 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:05:58,028 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:05:58,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:05:58,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:05:58,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:05:58,090 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:05:58,090 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:05:58,091 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-10-23 21:05:58,155 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/67fab7f7b/d3bdabb8c22a4452b43e414399408a5a/FLAGcb81cbbd9 [2018-10-23 21:05:59,049 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:05:59,052 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-10-23 21:05:59,097 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/67fab7f7b/d3bdabb8c22a4452b43e414399408a5a/FLAGcb81cbbd9 [2018-10-23 21:05:59,115 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/67fab7f7b/d3bdabb8c22a4452b43e414399408a5a [2018-10-23 21:05:59,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:05:59,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:05:59,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:05:59,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:05:59,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:05:59,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:05:59" (1/1) ... [2018-10-23 21:05:59,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad6d500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:59, skipping insertion in model container [2018-10-23 21:05:59,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:05:59" (1/1) ... [2018-10-23 21:05:59,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:05:59,400 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:06:01,311 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:06:01,316 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:06:02,379 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:06:02,436 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:06:02,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02 WrapperNode [2018-10-23 21:06:02,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:06:02,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:06:02,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:06:02,438 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:06:02,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:02,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:03,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:06:03,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:06:03,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:06:03,673 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:06:03,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:03,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:03,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:03,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:04,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:04,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:04,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... [2018-10-23 21:06:04,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:06:04,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:06:04,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:06:04,420 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:06:04,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:06:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 21:06:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:06:04,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:06:22,435 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:06:22,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:06:22 BoogieIcfgContainer [2018-10-23 21:06:22,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:06:22,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:06:22,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:06:22,441 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:06:22,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:05:59" (1/3) ... [2018-10-23 21:06:22,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1998ecb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:06:22, skipping insertion in model container [2018-10-23 21:06:22,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:02" (2/3) ... [2018-10-23 21:06:22,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1998ecb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:06:22, skipping insertion in model container [2018-10-23 21:06:22,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:06:22" (3/3) ... [2018-10-23 21:06:22,445 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-10-23 21:06:22,455 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:06:22,466 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:06:22,484 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:06:22,537 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 21:06:22,538 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:06:22,538 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:06:22,538 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:06:22,538 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:06:22,538 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:06:22,538 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:06:22,538 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:06:22,539 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:06:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 21:06:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-23 21:06:22,619 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:22,620 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] [2018-10-23 21:06:22,623 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:22,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:22,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1660793902, now seen corresponding path program 1 times [2018-10-23 21:06:22,630 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:22,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:22,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:22,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:22,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:06:23,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:23,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:06:23,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:06:23,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:06:23,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:06:23,068 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 21:06:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:06:47,401 INFO L93 Difference]: Finished difference Result 6361 states and 12176 transitions. [2018-10-23 21:06:47,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:06:47,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-10-23 21:06:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:06:47,461 INFO L225 Difference]: With dead ends: 6361 [2018-10-23 21:06:47,461 INFO L226 Difference]: Without dead ends: 4605 [2018-10-23 21:06:47,473 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:06:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2018-10-23 21:06:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 3148. [2018-10-23 21:06:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2018-10-23 21:06:47,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5068 transitions. [2018-10-23 21:06:47,678 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5068 transitions. Word has length 48 [2018-10-23 21:06:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:06:47,679 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 5068 transitions. [2018-10-23 21:06:47,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:06:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5068 transitions. [2018-10-23 21:06:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-23 21:06:47,688 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:47,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:06:47,688 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:47,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:47,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1361041398, now seen corresponding path program 1 times [2018-10-23 21:06:47,692 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:47,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:47,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:47,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:47,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:48,080 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 21:06:48,725 WARN L179 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-23 21:06:48,978 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 21:06:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:06:49,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:49,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:06:49,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:06:49,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:06:49,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:06:49,128 INFO L87 Difference]: Start difference. First operand 3148 states and 5068 transitions. Second operand 6 states. [2018-10-23 21:06:49,349 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 21:07:27,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:07:27,973 INFO L93 Difference]: Finished difference Result 13170 states and 20020 transitions. [2018-10-23 21:07:27,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:07:27,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-10-23 21:07:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:07:28,025 INFO L225 Difference]: With dead ends: 13170 [2018-10-23 21:07:28,025 INFO L226 Difference]: Without dead ends: 10024 [2018-10-23 21:07:28,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 21:07:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2018-10-23 21:07:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 8652. [2018-10-23 21:07:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2018-10-23 21:07:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12036 transitions. [2018-10-23 21:07:28,198 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12036 transitions. Word has length 116 [2018-10-23 21:07:28,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:07:28,199 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 12036 transitions. [2018-10-23 21:07:28,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:07:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12036 transitions. [2018-10-23 21:07:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-23 21:07:28,217 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:07:28,218 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:07:28,218 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:07:28,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:07:28,219 INFO L82 PathProgramCache]: Analyzing trace with hash -692491083, now seen corresponding path program 1 times [2018-10-23 21:07:28,219 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:07:28,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:07:28,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:28,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:28,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-10-23 21:07:29,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:07:29,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:07:29,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 21:07:29,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 21:07:29,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:07:29,313 INFO L87 Difference]: Start difference. First operand 8652 states and 12036 transitions. Second operand 7 states. [2018-10-23 21:08:03,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:08:03,728 INFO L93 Difference]: Finished difference Result 26878 states and 36468 transitions. [2018-10-23 21:08:03,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:08:03,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 324 [2018-10-23 21:08:03,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:08:03,797 INFO L225 Difference]: With dead ends: 26878 [2018-10-23 21:08:03,798 INFO L226 Difference]: Without dead ends: 18228 [2018-10-23 21:08:03,811 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 21:08:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2018-10-23 21:08:04,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 15493. [2018-10-23 21:08:04,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15493 states. [2018-10-23 21:08:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15493 states to 15493 states and 19189 transitions. [2018-10-23 21:08:04,088 INFO L78 Accepts]: Start accepts. Automaton has 15493 states and 19189 transitions. Word has length 324 [2018-10-23 21:08:04,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:08:04,089 INFO L481 AbstractCegarLoop]: Abstraction has 15493 states and 19189 transitions. [2018-10-23 21:08:04,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 21:08:04,091 INFO L276 IsEmpty]: Start isEmpty. Operand 15493 states and 19189 transitions. [2018-10-23 21:08:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-10-23 21:08:04,099 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:08:04,100 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:08:04,100 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:08:04,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:08:04,100 INFO L82 PathProgramCache]: Analyzing trace with hash 408990287, now seen corresponding path program 1 times [2018-10-23 21:08:04,101 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:08:04,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:08:04,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:04,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:04,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:04,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:08:04,910 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:08:04,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:05,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:08:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:05,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:08:05,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 21:08:05,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:08:05,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:08:05,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:08:05,213 INFO L87 Difference]: Start difference. First operand 15493 states and 19189 transitions. Second operand 5 states. [2018-10-23 21:08:38,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:08:38,798 INFO L93 Difference]: Finished difference Result 70982 states and 95208 transitions. [2018-10-23 21:08:38,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:08:38,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 352 [2018-10-23 21:08:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:08:38,902 INFO L225 Difference]: With dead ends: 70982 [2018-10-23 21:08:38,903 INFO L226 Difference]: Without dead ends: 51391 [2018-10-23 21:08:38,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:08:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51391 states. [2018-10-23 21:08:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51391 to 51309. [2018-10-23 21:08:39,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51309 states. [2018-10-23 21:08:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51309 states to 51309 states and 60472 transitions. [2018-10-23 21:08:39,750 INFO L78 Accepts]: Start accepts. Automaton has 51309 states and 60472 transitions. Word has length 352 [2018-10-23 21:08:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:08:39,751 INFO L481 AbstractCegarLoop]: Abstraction has 51309 states and 60472 transitions. [2018-10-23 21:08:39,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:08:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 51309 states and 60472 transitions. [2018-10-23 21:08:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-10-23 21:08:39,757 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:08:39,758 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:08:39,758 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:08:39,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:08:39,759 INFO L82 PathProgramCache]: Analyzing trace with hash 208015303, now seen corresponding path program 1 times [2018-10-23 21:08:39,759 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:08:39,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:08:39,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:39,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:39,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 21:08:40,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:08:40,385 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:08:40,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:40,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:08:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:40,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:08:40,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 21:08:40,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:08:40,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:08:40,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:08:40,671 INFO L87 Difference]: Start difference. First operand 51309 states and 60472 transitions. Second operand 4 states. [2018-10-23 21:09:04,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:09:04,036 INFO L93 Difference]: Finished difference Result 184884 states and 220618 transitions. [2018-10-23 21:09:04,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:09:04,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 362 [2018-10-23 21:09:04,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:09:04,218 INFO L225 Difference]: With dead ends: 184884 [2018-10-23 21:09:04,219 INFO L226 Difference]: Without dead ends: 134943 [2018-10-23 21:09:04,276 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:09:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134943 states. [2018-10-23 21:09:05,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134943 to 86821. [2018-10-23 21:09:05,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86821 states. [2018-10-23 21:09:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86821 states to 86821 states and 101826 transitions. [2018-10-23 21:09:05,826 INFO L78 Accepts]: Start accepts. Automaton has 86821 states and 101826 transitions. Word has length 362 [2018-10-23 21:09:05,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:09:05,827 INFO L481 AbstractCegarLoop]: Abstraction has 86821 states and 101826 transitions. [2018-10-23 21:09:05,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:09:05,827 INFO L276 IsEmpty]: Start isEmpty. Operand 86821 states and 101826 transitions. [2018-10-23 21:09:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2018-10-23 21:09:05,846 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:09:05,847 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:09:05,847 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:09:05,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:09:05,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1985217748, now seen corresponding path program 1 times [2018-10-23 21:09:05,848 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:09:05,848 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:09:05,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:05,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:05,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:06,892 WARN L179 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-23 21:09:07,244 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-23 21:09:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 474 proven. 4 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2018-10-23 21:09:08,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:09:08,352 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:09:08,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:08,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:09:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2018-10-23 21:09:08,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:09:08,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 21:09:08,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:09:08,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:09:08,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:09:08,885 INFO L87 Difference]: Start difference. First operand 86821 states and 101826 transitions. Second operand 5 states. [2018-10-23 21:09:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:09:32,998 INFO L93 Difference]: Finished difference Result 183205 states and 213687 transitions. [2018-10-23 21:09:32,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:09:32,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 665 [2018-10-23 21:09:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:09:33,126 INFO L225 Difference]: With dead ends: 183205 [2018-10-23 21:09:33,126 INFO L226 Difference]: Without dead ends: 93651 [2018-10-23 21:09:33,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 665 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:09:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93651 states. [2018-10-23 21:09:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93651 to 90917. [2018-10-23 21:09:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90917 states. [2018-10-23 21:09:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90917 states to 90917 states and 100330 transitions. [2018-10-23 21:09:33,940 INFO L78 Accepts]: Start accepts. Automaton has 90917 states and 100330 transitions. Word has length 665 [2018-10-23 21:09:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:09:33,940 INFO L481 AbstractCegarLoop]: Abstraction has 90917 states and 100330 transitions. [2018-10-23 21:09:33,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:09:33,940 INFO L276 IsEmpty]: Start isEmpty. Operand 90917 states and 100330 transitions. [2018-10-23 21:09:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2018-10-23 21:09:33,964 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:09:33,965 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:09:33,965 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:09:33,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:09:33,966 INFO L82 PathProgramCache]: Analyzing trace with hash -232953415, now seen corresponding path program 1 times [2018-10-23 21:09:33,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:09:33,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:09:33,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:33,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:33,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-23 21:09:35,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:09:35,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:09:35,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:09:35,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:09:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:09:35,270 INFO L87 Difference]: Start difference. First operand 90917 states and 100330 transitions. Second operand 5 states. Received shutdown request... [2018-10-23 21:09:53,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 21:09:53,235 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:09:53,240 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:09:53,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:09:53 BoogieIcfgContainer [2018-10-23 21:09:53,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:09:53,241 INFO L168 Benchmark]: Toolchain (without parser) took 234110.83 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 829.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:53,243 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-23 21:09:53,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3304.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 963.6 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:53,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 1234.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 825.8 MB). Free memory was 963.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:53,245 INFO L168 Benchmark]: Boogie Preprocessor took 745.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 92.9 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:53,246 INFO L168 Benchmark]: RCFGBuilder took 18017.04 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 284.7 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 478.1 MB). Peak memory consumption was 762.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:53,247 INFO L168 Benchmark]: TraceAbstraction took 210803.71 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:09:53,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 3304.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 963.6 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1234.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 825.8 MB). Free memory was 963.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 745.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 92.9 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18017.04 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 284.7 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 478.1 MB). Peak memory consumption was 762.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210803.71 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (90917states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (158072 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 210.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 197.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8772 SDtfs, 44006 SDslu, 4046 SDs, 0 SdLazy, 92695 SolverSat, 18002 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 169.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1421 GetRequests, 1385 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90917occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 56502 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 3995 NumberOfCodeBlocks, 3995 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3985 ConstructedInterpolants, 0 QuantifiedInterpolants, 7073790 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1673 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2431/2504 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown