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_label53_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:43:44,214 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:43:44,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:43:44,229 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:43:44,230 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:43:44,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:43:44,232 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:43:44,234 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:43:44,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:43:44,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:43:44,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:43:44,238 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:43:44,239 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:43:44,240 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:43:44,241 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:43:44,242 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:43:44,242 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:43:44,244 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:43:44,246 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:43:44,248 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:43:44,249 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:43:44,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:43:44,253 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:43:44,253 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:43:44,253 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:43:44,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:43:44,256 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:43:44,256 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:43:44,257 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:43:44,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:43:44,259 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:43:44,259 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 18:43:44,260 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 18:43:44,260 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 18:43:44,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 18:43:44,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 18:43:44,262 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 18:43:44,286 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:43:44,287 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:43:44,287 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:43:44,288 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:43:44,289 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:43:44,289 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:43:44,290 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:43:44,290 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:43:44,290 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:43:44,290 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:43:44,291 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:43:44,292 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:43:44,292 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:43:44,292 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:43:44,292 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:43:44,293 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:43:44,293 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:43:44,293 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:43:44,293 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:43:44,293 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:43:44,295 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:43:44,295 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:43:44,295 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:43:44,296 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:43:44,296 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:43:44,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:43:44,296 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:43:44,296 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:43:44,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:43:44,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:43:44,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:43:44,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:43:44,387 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:43:44,388 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label53_false-unreach-call.c [2018-10-23 18:43:44,455 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f67106bf0/95155755092c4fdfba600735746e9b5d/FLAGc292fe710 [2018-10-23 18:43:45,446 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:43:45,448 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label53_false-unreach-call.c [2018-10-23 18:43:45,492 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f67106bf0/95155755092c4fdfba600735746e9b5d/FLAGc292fe710 [2018-10-23 18:43:45,507 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f67106bf0/95155755092c4fdfba600735746e9b5d [2018-10-23 18:43:45,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:43:45,521 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:43:45,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:43:45,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:43:45,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:43:45,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:45" (1/1) ... [2018-10-23 18:43:45,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd10f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:45, skipping insertion in model container [2018-10-23 18:43:45,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:45" (1/1) ... [2018-10-23 18:43:45,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:43:45,776 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:43:47,716 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:43:47,723 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:43:49,235 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:43:49,299 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:43:49,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49 WrapperNode [2018-10-23 18:43:49,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:43:49,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:43:49,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:43:49,303 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:43:49,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:49,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:50,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:43:50,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:43:50,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:43:50,453 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:43:50,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:50,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:50,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:50,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:50,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:50,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:51,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (1/1) ... [2018-10-23 18:43:51,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:43:51,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:43:51,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:43:51,173 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:43:51,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (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 18:43:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:43:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:43:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:44:07,599 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:44:07,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:07 BoogieIcfgContainer [2018-10-23 18:44:07,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:44:07,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:44:07,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:44:07,605 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:44:07,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:45" (1/3) ... [2018-10-23 18:44:07,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb38070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:07, skipping insertion in model container [2018-10-23 18:44:07,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:49" (2/3) ... [2018-10-23 18:44:07,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb38070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:07, skipping insertion in model container [2018-10-23 18:44:07,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:07" (3/3) ... [2018-10-23 18:44:07,610 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label53_false-unreach-call.c [2018-10-23 18:44:07,620 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:44:07,632 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:44:07,651 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:44:07,708 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:44:07,709 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:44:07,709 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:44:07,709 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:44:07,710 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:44:07,710 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:44:07,710 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:44:07,710 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:44:07,710 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:44:07,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 18:44:07,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-23 18:44:07,774 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:44:07,775 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:44:07,778 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:44:07,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:44:07,785 INFO L82 PathProgramCache]: Analyzing trace with hash -643220670, now seen corresponding path program 1 times [2018-10-23 18:44:07,787 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:44:07,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:44:07,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:07,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:07,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:08,087 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 18:44:08,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:44:08,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:44:08,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:44:08,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:44:08,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:44:08,112 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 18:44:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:44:31,015 INFO L93 Difference]: Finished difference Result 6406 states and 12224 transitions. [2018-10-23 18:44:31,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:44:31,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-23 18:44:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:44:31,076 INFO L225 Difference]: With dead ends: 6406 [2018-10-23 18:44:31,077 INFO L226 Difference]: Without dead ends: 4650 [2018-10-23 18:44:31,088 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 18:44:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2018-10-23 18:44:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4611. [2018-10-23 18:44:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4611 states. [2018-10-23 18:44:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 7301 transitions. [2018-10-23 18:44:31,307 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 7301 transitions. Word has length 12 [2018-10-23 18:44:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:44:31,307 INFO L481 AbstractCegarLoop]: Abstraction has 4611 states and 7301 transitions. [2018-10-23 18:44:31,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:44:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 7301 transitions. [2018-10-23 18:44:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-23 18:44:31,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:44:31,312 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:44:31,312 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:44:31,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:44:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1197814694, now seen corresponding path program 1 times [2018-10-23 18:44:31,313 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:44:31,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:44:31,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:31,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:31,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:31,688 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 18:44:32,322 WARN L179 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-23 18:44:32,571 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 18:44:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:44:32,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:44:32,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 18:44:32,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:44:32,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:44:32,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:44:32,903 INFO L87 Difference]: Start difference. First operand 4611 states and 7301 transitions. Second operand 6 states. [2018-10-23 18:45:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:45:10,005 INFO L93 Difference]: Finished difference Result 20180 states and 30824 transitions. [2018-10-23 18:45:10,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:45:10,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2018-10-23 18:45:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:45:10,078 INFO L225 Difference]: With dead ends: 20180 [2018-10-23 18:45:10,079 INFO L226 Difference]: Without dead ends: 15571 [2018-10-23 18:45:10,088 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 18:45:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15571 states. [2018-10-23 18:45:10,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15571 to 14198. [2018-10-23 18:45:10,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14198 states. [2018-10-23 18:45:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14198 states to 14198 states and 18990 transitions. [2018-10-23 18:45:10,386 INFO L78 Accepts]: Start accepts. Automaton has 14198 states and 18990 transitions. Word has length 80 [2018-10-23 18:45:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:45:10,386 INFO L481 AbstractCegarLoop]: Abstraction has 14198 states and 18990 transitions. [2018-10-23 18:45:10,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:45:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 14198 states and 18990 transitions. [2018-10-23 18:45:10,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-10-23 18:45:10,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:45:10,414 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:10,414 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:45:10,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:45:10,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1236507099, now seen corresponding path program 1 times [2018-10-23 18:45:10,415 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:45:10,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:45:10,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:10,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:45:10,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:45:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-23 18:45:11,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:45:11,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 18:45:11,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 18:45:11,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 18:45:11,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:45:11,748 INFO L87 Difference]: Start difference. First operand 14198 states and 18990 transitions. Second operand 7 states. [2018-10-23 18:45:12,101 WARN L179 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-10-23 18:45:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:45:52,485 INFO L93 Difference]: Finished difference Result 42065 states and 56298 transitions. [2018-10-23 18:45:52,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:45:52,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2018-10-23 18:45:52,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:45:52,560 INFO L225 Difference]: With dead ends: 42065 [2018-10-23 18:45:52,560 INFO L226 Difference]: Without dead ends: 27869 [2018-10-23 18:45:52,581 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:45:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2018-10-23 18:45:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 25134. [2018-10-23 18:45:52,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25134 states. [2018-10-23 18:45:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25134 states to 25134 states and 30401 transitions. [2018-10-23 18:45:52,946 INFO L78 Accepts]: Start accepts. Automaton has 25134 states and 30401 transitions. Word has length 288 [2018-10-23 18:45:52,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:45:52,947 INFO L481 AbstractCegarLoop]: Abstraction has 25134 states and 30401 transitions. [2018-10-23 18:45:52,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 18:45:52,947 INFO L276 IsEmpty]: Start isEmpty. Operand 25134 states and 30401 transitions. [2018-10-23 18:45:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-10-23 18:45:52,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:45:52,956 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:52,956 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:45:52,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:45:52,957 INFO L82 PathProgramCache]: Analyzing trace with hash 384929983, now seen corresponding path program 1 times [2018-10-23 18:45:52,957 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:45:52,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:45:52,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:52,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:45:52,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:45:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:45:53,469 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:45:53,469 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 18:45:53,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:45:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:45:53,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:45:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:45:54,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:45:54,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 18:45:54,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:45:54,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:45:54,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:45:54,076 INFO L87 Difference]: Start difference. First operand 25134 states and 30401 transitions. Second operand 5 states. [2018-10-23 18:46:29,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:46:29,732 INFO L93 Difference]: Finished difference Result 114900 states and 149450 transitions. [2018-10-23 18:46:29,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:46:29,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2018-10-23 18:46:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:46:29,888 INFO L225 Difference]: With dead ends: 114900 [2018-10-23 18:46:29,888 INFO L226 Difference]: Without dead ends: 80202 [2018-10-23 18:46:29,935 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 317 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 18:46:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80202 states. [2018-10-23 18:46:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80202 to 80104. [2018-10-23 18:46:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80104 states. [2018-10-23 18:46:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80104 states to 80104 states and 93292 transitions. [2018-10-23 18:46:31,572 INFO L78 Accepts]: Start accepts. Automaton has 80104 states and 93292 transitions. Word has length 316 [2018-10-23 18:46:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:46:31,573 INFO L481 AbstractCegarLoop]: Abstraction has 80104 states and 93292 transitions. [2018-10-23 18:46:31,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:46:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 80104 states and 93292 transitions. [2018-10-23 18:46:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-10-23 18:46:31,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:46:31,578 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:31,579 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:46:31,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:46:31,579 INFO L82 PathProgramCache]: Analyzing trace with hash -68376009, now seen corresponding path program 1 times [2018-10-23 18:46:31,579 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:46:31,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:46:31,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:31,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:31,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 18:46:32,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:46:32,109 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 18:46:32,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:32,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:46:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:46:32,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:46:32,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 18:46:32,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:46:32,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:46:32,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:46:32,327 INFO L87 Difference]: Start difference. First operand 80104 states and 93292 transitions. Second operand 4 states. [2018-10-23 18:47:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:47:01,884 INFO L93 Difference]: Finished difference Result 286225 states and 337230 transitions. [2018-10-23 18:47:01,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:47:01,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2018-10-23 18:47:01,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:47:02,180 INFO L225 Difference]: With dead ends: 286225 [2018-10-23 18:47:02,180 INFO L226 Difference]: Without dead ends: 207489 [2018-10-23 18:47:02,244 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 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 18:47:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207489 states. [2018-10-23 18:47:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207489 to 133370. [2018-10-23 18:47:03,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133370 states. [2018-10-23 18:47:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133370 states to 133370 states and 154665 transitions. [2018-10-23 18:47:04,015 INFO L78 Accepts]: Start accepts. Automaton has 133370 states and 154665 transitions. Word has length 326 [2018-10-23 18:47:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:47:04,015 INFO L481 AbstractCegarLoop]: Abstraction has 133370 states and 154665 transitions. [2018-10-23 18:47:04,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:47:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 133370 states and 154665 transitions. [2018-10-23 18:47:04,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-10-23 18:47:04,031 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:47:04,032 INFO L375 BasicCegarLoop]: trace histogram [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, 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 18:47:04,032 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:47:04,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:47:04,033 INFO L82 PathProgramCache]: Analyzing trace with hash 483961052, now seen corresponding path program 1 times [2018-10-23 18:47:04,033 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:47:04,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:47:04,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:04,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:04,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:47:05,029 WARN L179 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-23 18:47:05,661 WARN L179 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-23 18:47:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 421 proven. 4 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-10-23 18:47:06,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:47:06,919 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 18:47:06,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:47:07,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:47:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-10-23 18:47:07,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:47:07,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 18:47:07,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:47:07,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:47:07,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:47:07,404 INFO L87 Difference]: Start difference. First operand 133370 states and 154665 transitions. Second operand 5 states. [2018-10-23 18:47:29,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:47:29,903 INFO L93 Difference]: Finished difference Result 287231 states and 331289 transitions. [2018-10-23 18:47:29,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:47:29,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 629 [2018-10-23 18:47:29,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:47:30,099 INFO L225 Difference]: With dead ends: 287231 [2018-10-23 18:47:30,099 INFO L226 Difference]: Without dead ends: 148394 [2018-10-23 18:47:30,185 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 629 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:47:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148394 states. [2018-10-23 18:47:31,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148394 to 134722. [2018-10-23 18:47:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134722 states. [2018-10-23 18:47:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134722 states to 134722 states and 147923 transitions. [2018-10-23 18:47:32,133 INFO L78 Accepts]: Start accepts. Automaton has 134722 states and 147923 transitions. Word has length 629 [2018-10-23 18:47:32,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:47:32,133 INFO L481 AbstractCegarLoop]: Abstraction has 134722 states and 147923 transitions. [2018-10-23 18:47:32,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:47:32,134 INFO L276 IsEmpty]: Start isEmpty. Operand 134722 states and 147923 transitions. [2018-10-23 18:47:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2018-10-23 18:47:32,170 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:47:32,171 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:47:32,171 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:47:32,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:47:32,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1788119869, now seen corresponding path program 1 times [2018-10-23 18:47:32,172 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:47:32,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:47:32,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:32,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:32,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:47:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-23 18:47:33,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:47:33,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:47:33,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:47:33,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:47:33,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:47:33,169 INFO L87 Difference]: Start difference. First operand 134722 states and 147923 transitions. Second operand 4 states. Received shutdown request... [2018-10-23 18:47:41,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:47:41,592 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:47:41,597 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:47:41,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:47:41 BoogieIcfgContainer [2018-10-23 18:47:41,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:47:41,598 INFO L168 Benchmark]: Toolchain (without parser) took 236078.22 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 2.1 GB in the end (delta: -768.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-23 18:47:41,599 INFO L168 Benchmark]: CDTParser took 0.67 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 18:47:41,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3779.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 968.9 MB in the end (delta: 403.4 MB). Peak memory consumption was 403.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:41,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 1150.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 816.8 MB). Free memory was 968.9 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 18:47:41,601 INFO L168 Benchmark]: Boogie Preprocessor took 719.04 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: 96.1 MB). Peak memory consumption was 96.1 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:41,602 INFO L168 Benchmark]: RCFGBuilder took 16428.11 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 303.0 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 475.4 MB). Peak memory consumption was 778.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:41,603 INFO L168 Benchmark]: TraceAbstraction took 213995.52 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -637.3 MB). Peak memory consumption was 409.2 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:41,609 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 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 3779.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 968.9 MB in the end (delta: 403.4 MB). Peak memory consumption was 403.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1150.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 816.8 MB). Free memory was 968.9 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 719.04 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: 96.1 MB). Peak memory consumption was 96.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16428.11 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 303.0 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 475.4 MB). Peak memory consumption was 778.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213995.52 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -637.3 MB). Peak memory consumption was 409.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while BasicCegarLoop was constructing difference of abstraction (134722states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (98069 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 197.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8685 SDtfs, 42292 SDslu, 3828 SDs, 0 SdLazy, 89776 SolverSat, 18178 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 168.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1317 GetRequests, 1278 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134722occurred 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: 6.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 92036 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 3803 NumberOfCodeBlocks, 3803 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3793 ConstructedInterpolants, 0 QuantifiedInterpolants, 6901666 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1565 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2087/2160 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown