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_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:02:03,295 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:02:03,298 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:02:03,313 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:02:03,313 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:02:03,314 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:02:03,315 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:02:03,317 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:02:03,318 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:02:03,319 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:02:03,320 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:02:03,321 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:02:03,321 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:02:03,322 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:02:03,323 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:02:03,324 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:02:03,325 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:02:03,327 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:02:03,329 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:02:03,331 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:02:03,332 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:02:03,333 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:02:03,336 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 17:02:03,336 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 17:02:03,336 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 17:02:03,337 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 17:02:03,338 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 17:02:03,339 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 17:02:03,342 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 17:02:03,343 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 17:02:03,343 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 17:02:03,344 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 17:02:03,344 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 17:02:03,344 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 17:02:03,345 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 17:02:03,346 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 17:02:03,346 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 [2018-10-24 17:02:03,373 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:02:03,374 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:02:03,374 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:02:03,375 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:02:03,375 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:02:03,375 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:02:03,376 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:02:03,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:02:03,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:02:03,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:02:03,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:02:03,381 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:02:03,381 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:02:03,381 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:02:03,381 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:02:03,382 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:02:03,382 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:02:03,382 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:02:03,382 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:02:03,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:02:03,383 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:02:03,383 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:02:03,383 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:02:03,383 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:02:03,383 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:02:03,384 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:02:03,386 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:02:03,386 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:02:03,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:02:03,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:02:03,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:02:03,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:02:03,467 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:02:03,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c [2018-10-24 17:02:03,529 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/01608d7b7/8257654388b04dd68745bbaefb3c48c7/FLAG27fa43309 [2018-10-24 17:02:04,456 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:02:04,457 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c [2018-10-24 17:02:04,502 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/01608d7b7/8257654388b04dd68745bbaefb3c48c7/FLAG27fa43309 [2018-10-24 17:02:04,519 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/01608d7b7/8257654388b04dd68745bbaefb3c48c7 [2018-10-24 17:02:04,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:02:04,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:02:04,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:02:04,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:02:04,539 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:02:04,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:02:04" (1/1) ... [2018-10-24 17:02:04,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:04, skipping insertion in model container [2018-10-24 17:02:04,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:02:04" (1/1) ... [2018-10-24 17:02:04,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:02:04,808 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:02:06,951 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:02:06,955 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:02:08,159 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:02:08,220 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:02:08,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08 WrapperNode [2018-10-24 17:02:08,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:02:08,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:02:08,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:02:08,222 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:02:08,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:08,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:02:09,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:02:09,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:02:09,293 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:02:09,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... [2018-10-24 17:02:09,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:02:09,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:02:09,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:02:09,913 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:02:09,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:02:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:02:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:02:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:02:27,554 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:02:27,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:02:27 BoogieIcfgContainer [2018-10-24 17:02:27,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:02:27,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:02:27,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:02:27,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:02:27,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:02:04" (1/3) ... [2018-10-24 17:02:27,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:02:27, skipping insertion in model container [2018-10-24 17:02:27,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:02:08" (2/3) ... [2018-10-24 17:02:27,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:02:27, skipping insertion in model container [2018-10-24 17:02:27,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:02:27" (3/3) ... [2018-10-24 17:02:27,564 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label05_true-unreach-call.c [2018-10-24 17:02:27,574 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:02:27,585 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:02:27,602 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:02:27,656 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:02:27,656 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:02:27,656 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:02:27,657 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:02:27,657 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:02:27,657 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:02:27,657 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:02:27,657 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:02:27,657 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:02:27,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:02:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-24 17:02:27,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:02:27,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:02:27,722 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:02:27,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:02:27,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1059493314, now seen corresponding path program 1 times [2018-10-24 17:02:27,734 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:02:27,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:02:27,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:02:27,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:02:27,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:02:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:02:28,204 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 17:02:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:02:28,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:02:28,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:02:28,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:02:28,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:02:28,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:02:28,251 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:02:52,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:02:52,160 INFO L93 Difference]: Finished difference Result 6361 states and 12176 transitions. [2018-10-24 17:02:52,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:02:52,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-10-24 17:02:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:02:52,222 INFO L225 Difference]: With dead ends: 6361 [2018-10-24 17:02:52,222 INFO L226 Difference]: Without dead ends: 4605 [2018-10-24 17:02:52,231 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 [2018-10-24 17:02:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2018-10-24 17:02:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 3148. [2018-10-24 17:02:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2018-10-24 17:02:52,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5068 transitions. [2018-10-24 17:02:52,421 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5068 transitions. Word has length 61 [2018-10-24 17:02:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:02:52,422 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 5068 transitions. [2018-10-24 17:02:52,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:02:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5068 transitions. [2018-10-24 17:02:52,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 17:02:52,428 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:02:52,429 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:02:52,429 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:02:52,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:02:52,430 INFO L82 PathProgramCache]: Analyzing trace with hash 2102497693, now seen corresponding path program 1 times [2018-10-24 17:02:52,430 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:02:52,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:02:52,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:02:52,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:02:52,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:02:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:02:52,824 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:02:53,457 WARN L179 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 17:02:53,889 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 17:02:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:02:53,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:02:53,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:02:53,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:02:53,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:02:53,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:02:53,998 INFO L87 Difference]: Start difference. First operand 3148 states and 5068 transitions. Second operand 6 states. [2018-10-24 17:03:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:03:32,360 INFO L93 Difference]: Finished difference Result 13170 states and 20020 transitions. [2018-10-24 17:03:32,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:03:32,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-10-24 17:03:32,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:03:32,407 INFO L225 Difference]: With dead ends: 13170 [2018-10-24 17:03:32,408 INFO L226 Difference]: Without dead ends: 10024 [2018-10-24 17:03:32,414 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:03:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2018-10-24 17:03:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 8652. [2018-10-24 17:03:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2018-10-24 17:03:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12036 transitions. [2018-10-24 17:03:32,582 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12036 transitions. Word has length 129 [2018-10-24 17:03:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:03:32,583 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 12036 transitions. [2018-10-24 17:03:32,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:03:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12036 transitions. [2018-10-24 17:03:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-24 17:03:32,592 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:03:32,593 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 17:03:32,594 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:03:32,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:03:32,594 INFO L82 PathProgramCache]: Analyzing trace with hash 2012285509, now seen corresponding path program 1 times [2018-10-24 17:03:32,594 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:03:32,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:03:32,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:03:32,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:03:32,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:03:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:03:33,196 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:03:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-10-24 17:03:33,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:03:33,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:03:33,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:03:33,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:03:33,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:03:33,643 INFO L87 Difference]: Start difference. First operand 8652 states and 12036 transitions. Second operand 7 states. [2018-10-24 17:04:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:04:11,777 INFO L93 Difference]: Finished difference Result 26878 states and 36468 transitions. [2018-10-24 17:04:11,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:04:11,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 347 [2018-10-24 17:04:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:04:11,838 INFO L225 Difference]: With dead ends: 26878 [2018-10-24 17:04:11,839 INFO L226 Difference]: Without dead ends: 18228 [2018-10-24 17:04:11,850 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 [2018-10-24 17:04:11,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2018-10-24 17:04:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 15493. [2018-10-24 17:04:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15493 states. [2018-10-24 17:04:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15493 states to 15493 states and 19189 transitions. [2018-10-24 17:04:12,111 INFO L78 Accepts]: Start accepts. Automaton has 15493 states and 19189 transitions. Word has length 347 [2018-10-24 17:04:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:04:12,112 INFO L481 AbstractCegarLoop]: Abstraction has 15493 states and 19189 transitions. [2018-10-24 17:04:12,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:04:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 15493 states and 19189 transitions. [2018-10-24 17:04:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-10-24 17:04:12,121 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:04:12,122 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 17:04:12,122 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:04:12,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:04:12,122 INFO L82 PathProgramCache]: Analyzing trace with hash 586257131, now seen corresponding path program 1 times [2018-10-24 17:04:12,122 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:04:12,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:04:12,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:04:12,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:04:12,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:04:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:04:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 117 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 17:04:12,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:04:12,741 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 [2018-10-24 17:04:12,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:04:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:04:12,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:04:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:04:13,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:04:13,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 17:04:13,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:04:13,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:04:13,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:04:13,177 INFO L87 Difference]: Start difference. First operand 15493 states and 19189 transitions. Second operand 4 states. [2018-10-24 17:04:37,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:04:37,726 INFO L93 Difference]: Finished difference Result 51699 states and 66183 transitions. [2018-10-24 17:04:37,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:04:37,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 375 [2018-10-24 17:04:37,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:04:37,810 INFO L225 Difference]: With dead ends: 51699 [2018-10-24 17:04:37,810 INFO L226 Difference]: Without dead ends: 37574 [2018-10-24 17:04:37,831 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:04:37,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37574 states. [2018-10-24 17:04:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37574 to 23687. [2018-10-24 17:04:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23687 states. [2018-10-24 17:04:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23687 states to 23687 states and 30221 transitions. [2018-10-24 17:04:38,328 INFO L78 Accepts]: Start accepts. Automaton has 23687 states and 30221 transitions. Word has length 375 [2018-10-24 17:04:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:04:38,329 INFO L481 AbstractCegarLoop]: Abstraction has 23687 states and 30221 transitions. [2018-10-24 17:04:38,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:04:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 23687 states and 30221 transitions. [2018-10-24 17:04:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-10-24 17:04:38,340 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:04:38,340 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:04:38,341 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:04:38,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:04:38,341 INFO L82 PathProgramCache]: Analyzing trace with hash -580901941, now seen corresponding path program 1 times [2018-10-24 17:04:38,341 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:04:38,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:04:38,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:04:38,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:04:38,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:04:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:04:38,729 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 17:04:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:04:38,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:04:38,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:04:38,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:04:38,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:04:38,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:04:38,823 INFO L87 Difference]: Start difference. First operand 23687 states and 30221 transitions. Second operand 4 states. [2018-10-24 17:04:55,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:04:55,560 INFO L93 Difference]: Finished difference Result 52862 states and 68573 transitions. [2018-10-24 17:04:55,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:04:55,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 395 [2018-10-24 17:04:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:04:55,612 INFO L225 Difference]: With dead ends: 52862 [2018-10-24 17:04:55,612 INFO L226 Difference]: Without dead ends: 27810 [2018-10-24 17:04:55,639 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:04:55,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27810 states. [2018-10-24 17:04:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27810 to 27803. [2018-10-24 17:04:55,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27803 states. [2018-10-24 17:04:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27803 states to 27803 states and 33684 transitions. [2018-10-24 17:04:55,970 INFO L78 Accepts]: Start accepts. Automaton has 27803 states and 33684 transitions. Word has length 395 [2018-10-24 17:04:55,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:04:55,971 INFO L481 AbstractCegarLoop]: Abstraction has 27803 states and 33684 transitions. [2018-10-24 17:04:55,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:04:55,971 INFO L276 IsEmpty]: Start isEmpty. Operand 27803 states and 33684 transitions. [2018-10-24 17:04:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-10-24 17:04:55,982 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:04:55,982 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 17:04:55,983 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:04:55,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:04:55,983 INFO L82 PathProgramCache]: Analyzing trace with hash -636908942, now seen corresponding path program 1 times [2018-10-24 17:04:55,983 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:04:55,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:04:55,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:04:55,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:04:55,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:04:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:04:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 252 proven. 65 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-10-24 17:04:56,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:04:56,681 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 [2018-10-24 17:04:56,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:04:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:04:56,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:04:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-10-24 17:04:57,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:04:57,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:04:57,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:04:57,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:04:57,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:04:57,004 INFO L87 Difference]: Start difference. First operand 27803 states and 33684 transitions. Second operand 5 states. [2018-10-24 17:05:32,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:05:32,613 INFO L93 Difference]: Finished difference Result 140660 states and 177322 transitions. [2018-10-24 17:05:32,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:05:32,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 435 [2018-10-24 17:05:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:05:32,749 INFO L225 Difference]: With dead ends: 140660 [2018-10-24 17:05:32,750 INFO L226 Difference]: Without dead ends: 108759 [2018-10-24 17:05:32,791 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:05:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108759 states. [2018-10-24 17:05:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108759 to 105945. [2018-10-24 17:05:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105945 states. [2018-10-24 17:05:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105945 states to 105945 states and 118697 transitions. [2018-10-24 17:05:34,396 INFO L78 Accepts]: Start accepts. Automaton has 105945 states and 118697 transitions. Word has length 435 [2018-10-24 17:05:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:05:34,396 INFO L481 AbstractCegarLoop]: Abstraction has 105945 states and 118697 transitions. [2018-10-24 17:05:34,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:05:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 105945 states and 118697 transitions. [2018-10-24 17:05:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2018-10-24 17:05:34,423 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:05:34,423 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:05:34,423 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:05:34,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:05:34,424 INFO L82 PathProgramCache]: Analyzing trace with hash -772708149, now seen corresponding path program 1 times [2018-10-24 17:05:34,424 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:05:34,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:05:34,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:05:34,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:05:34,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:05:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:05:35,450 WARN L179 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 17:05:35,662 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 17:05:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 487 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-10-24 17:05:36,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:05:36,276 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 [2018-10-24 17:05:36,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:05:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:05:36,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:05:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-10-24 17:05:36,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:05:36,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 17:05:36,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:05:36,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:05:36,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:05:36,740 INFO L87 Difference]: Start difference. First operand 105945 states and 118697 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 17:06:00,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:06:00,708 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:06:00,715 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:06:00,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:06:00 BoogieIcfgContainer [2018-10-24 17:06:00,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:06:00,716 INFO L168 Benchmark]: Toolchain (without parser) took 236184.09 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 89.4 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-10-24 17:06:00,718 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 17:06:00,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3686.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 987.5 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:06:00,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 1071.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 855.6 MB). Free memory was 987.5 MB in the beginning and 2.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2018-10-24 17:06:00,720 INFO L168 Benchmark]: Boogie Preprocessor took 619.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 96.9 MB). Peak memory consumption was 96.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:06:00,721 INFO L168 Benchmark]: RCFGBuilder took 17642.55 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 289.9 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -374.4 MB). Peak memory consumption was 870.8 MB. Max. memory is 7.1 GB. [2018-10-24 17:06:00,722 INFO L168 Benchmark]: TraceAbstraction took 213159.02 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 17:06:00,727 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3686.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 987.5 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1071.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 855.6 MB). Free memory was 987.5 MB in the beginning and 2.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 619.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 96.9 MB). Peak memory consumption was 96.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17642.55 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 289.9 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -374.4 MB). Peak memory consumption was 870.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213159.02 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 196]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 196). Cancelled while BasicCegarLoop was constructing difference of abstraction (105945states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (169091 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 201.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10286 SDtfs, 44910 SDslu, 3935 SDs, 0 SdLazy, 89187 SolverSat, 19325 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 175.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1530 GetRequests, 1495 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105945occurred 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: 3.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 22272 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 3908 NumberOfCodeBlocks, 3908 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3898 ConstructedInterpolants, 0 QuantifiedInterpolants, 7063978 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1811 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2965/3038 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown