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_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:44:46,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:44:46,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:44:46,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:44:46,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:44:46,818 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:44:46,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:44:46,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:44:46,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:44:46,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:44:46,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:44:46,831 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:44:46,832 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:44:46,833 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:44:46,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:44:46,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:44:46,839 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:44:46,846 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:44:46,848 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:44:46,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:44:46,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:44:46,855 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:44:46,861 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:44:46,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:44:46,861 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:44:46,862 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:44:46,864 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:44:46,865 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:44:46,868 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:44:46,869 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:44:46,870 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:44:46,870 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:44:46,870 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:44:46,871 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:44:46,873 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:44:46,874 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:44:46,875 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 14:44:46,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:44:46,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:44:46,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:44:46,905 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:44:46,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:44:46,906 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:44:46,906 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:44:46,906 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:44:46,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:44:46,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:44:46,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:44:46,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:44:46,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:44:46,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:44:46,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:44:46,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:44:46,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:44:46,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:44:46,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:44:46,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:44:46,909 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:44:46,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:44:46,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:44:46,910 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:44:46,910 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:44:46,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:44:46,910 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:44:46,910 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:44:46,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:44:46,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:44:46,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:44:46,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:44:46,972 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:44:46,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-10-24 14:44:47,030 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f185c2052/848adf35d12e488e853103b2b0316aa1/FLAG1d4e551b4 [2018-10-24 14:44:47,979 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:44:47,979 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-10-24 14:44:48,055 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f185c2052/848adf35d12e488e853103b2b0316aa1/FLAG1d4e551b4 [2018-10-24 14:44:48,074 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f185c2052/848adf35d12e488e853103b2b0316aa1 [2018-10-24 14:44:48,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:44:48,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:44:48,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:44:48,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:44:48,100 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:44:48,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:44:48" (1/1) ... [2018-10-24 14:44:48,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:48, skipping insertion in model container [2018-10-24 14:44:48,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:44:48" (1/1) ... [2018-10-24 14:44:48,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:44:48,365 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:44:50,278 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:44:50,284 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:44:51,370 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:44:51,423 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:44:51,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51 WrapperNode [2018-10-24 14:44:51,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:44:51,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:44:51,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:44:51,426 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:44:51,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:51,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:52,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:44:52,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:44:52,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:44:52,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:44:52,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:52,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:52,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:52,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:53,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:53,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:53,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (1/1) ... [2018-10-24 14:44:53,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:44:53,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:44:53,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:44:53,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:44:53,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (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 14:44:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:44:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:44:53,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:45:11,284 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:45:11,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:45:11 BoogieIcfgContainer [2018-10-24 14:45:11,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:45:11,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:45:11,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:45:11,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:45:11,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:44:48" (1/3) ... [2018-10-24 14:45:11,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39739fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:45:11, skipping insertion in model container [2018-10-24 14:45:11,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:44:51" (2/3) ... [2018-10-24 14:45:11,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39739fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:45:11, skipping insertion in model container [2018-10-24 14:45:11,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:45:11" (3/3) ... [2018-10-24 14:45:11,295 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label31_false-unreach-call.c [2018-10-24 14:45:11,306 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:45:11,317 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:45:11,335 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:45:11,394 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:45:11,395 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:45:11,395 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:45:11,395 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:45:11,395 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:45:11,395 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:45:11,396 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:45:11,396 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:45:11,396 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:45:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:45:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-24 14:45:11,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:11,454 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:45:11,456 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:11,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:11,463 INFO L82 PathProgramCache]: Analyzing trace with hash -686802918, now seen corresponding path program 1 times [2018-10-24 14:45:11,465 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:11,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:11,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:11,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:11,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:11,852 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 14:45:11,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:11,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:45:11,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:45:11,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:45:11,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:11,875 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:45:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:41,961 INFO L93 Difference]: Finished difference Result 6406 states and 12224 transitions. [2018-10-24 14:45:41,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:45:41,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-24 14:45:41,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:42,023 INFO L225 Difference]: With dead ends: 6406 [2018-10-24 14:45:42,023 INFO L226 Difference]: Without dead ends: 4650 [2018-10-24 14:45:42,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:45:42,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2018-10-24 14:45:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4611. [2018-10-24 14:45:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4611 states. [2018-10-24 14:45:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 7301 transitions. [2018-10-24 14:45:42,245 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 7301 transitions. Word has length 19 [2018-10-24 14:45:42,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:42,246 INFO L481 AbstractCegarLoop]: Abstraction has 4611 states and 7301 transitions. [2018-10-24 14:45:42,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:45:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 7301 transitions. [2018-10-24 14:45:42,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-24 14:45:42,252 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:42,253 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:45:42,253 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:42,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:42,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1965316011, now seen corresponding path program 1 times [2018-10-24 14:45:42,254 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:42,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:42,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:42,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:42,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:42,639 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:45:43,260 WARN L179 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:45:43,601 WARN L179 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:45:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:45:43,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:43,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:45:43,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:45:43,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:45:43,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:45:43,908 INFO L87 Difference]: Start difference. First operand 4611 states and 7301 transitions. Second operand 6 states. [2018-10-24 14:45:44,103 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 14:46:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:20,121 INFO L93 Difference]: Finished difference Result 20180 states and 30824 transitions. [2018-10-24 14:46:20,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:46:20,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2018-10-24 14:46:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:20,192 INFO L225 Difference]: With dead ends: 20180 [2018-10-24 14:46:20,192 INFO L226 Difference]: Without dead ends: 15571 [2018-10-24 14:46:20,201 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:46:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15571 states. [2018-10-24 14:46:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15571 to 14198. [2018-10-24 14:46:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14198 states. [2018-10-24 14:46:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14198 states to 14198 states and 18990 transitions. [2018-10-24 14:46:20,471 INFO L78 Accepts]: Start accepts. Automaton has 14198 states and 18990 transitions. Word has length 87 [2018-10-24 14:46:20,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:20,472 INFO L481 AbstractCegarLoop]: Abstraction has 14198 states and 18990 transitions. [2018-10-24 14:46:20,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:46:20,472 INFO L276 IsEmpty]: Start isEmpty. Operand 14198 states and 18990 transitions. [2018-10-24 14:46:20,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-10-24 14:46:20,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:20,508 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:20,509 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:20,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1203557397, now seen corresponding path program 1 times [2018-10-24 14:46:20,509 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:20,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:20,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:20,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:20,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 14:46:21,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:21,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:46:21,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:46:21,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:46:21,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:46:21,572 INFO L87 Difference]: Start difference. First operand 14198 states and 18990 transitions. Second operand 7 states. [2018-10-24 14:47:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:00,429 INFO L93 Difference]: Finished difference Result 42065 states and 56298 transitions. [2018-10-24 14:47:00,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:47:00,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2018-10-24 14:47:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:00,507 INFO L225 Difference]: With dead ends: 42065 [2018-10-24 14:47:00,508 INFO L226 Difference]: Without dead ends: 27869 [2018-10-24 14:47:00,527 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:47:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2018-10-24 14:47:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 25134. [2018-10-24 14:47:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25134 states. [2018-10-24 14:47:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25134 states to 25134 states and 30401 transitions. [2018-10-24 14:47:00,968 INFO L78 Accepts]: Start accepts. Automaton has 25134 states and 30401 transitions. Word has length 295 [2018-10-24 14:47:00,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:00,969 INFO L481 AbstractCegarLoop]: Abstraction has 25134 states and 30401 transitions. [2018-10-24 14:47:00,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:47:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 25134 states and 30401 transitions. [2018-10-24 14:47:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-10-24 14:47:00,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:00,981 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:00,981 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:00,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1666214981, now seen corresponding path program 1 times [2018-10-24 14:47:00,983 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:00,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:00,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:00,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:00,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:01,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:47:01,505 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 14:47:01,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:01,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:47:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:01,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:47:01,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:47:01,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:47:01,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:47:01,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:47:01,805 INFO L87 Difference]: Start difference. First operand 25134 states and 30401 transitions. Second operand 5 states. [2018-10-24 14:47:35,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:35,797 INFO L93 Difference]: Finished difference Result 114900 states and 149450 transitions. [2018-10-24 14:47:35,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:47:35,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 323 [2018-10-24 14:47:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:35,976 INFO L225 Difference]: With dead ends: 114900 [2018-10-24 14:47:35,977 INFO L226 Difference]: Without dead ends: 80202 [2018-10-24 14:47:36,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 324 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 14:47:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80202 states. [2018-10-24 14:47:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80202 to 80104. [2018-10-24 14:47:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80104 states. [2018-10-24 14:47:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80104 states to 80104 states and 93292 transitions. [2018-10-24 14:47:37,681 INFO L78 Accepts]: Start accepts. Automaton has 80104 states and 93292 transitions. Word has length 323 [2018-10-24 14:47:37,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:37,682 INFO L481 AbstractCegarLoop]: Abstraction has 80104 states and 93292 transitions. [2018-10-24 14:47:37,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:47:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 80104 states and 93292 transitions. [2018-10-24 14:47:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-10-24 14:47:37,687 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:37,688 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:37,688 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:37,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:37,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1919634883, now seen corresponding path program 1 times [2018-10-24 14:47:37,689 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:37,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:37,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:37,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:37,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 14:47:38,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:47:38,230 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 14:47:38,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:38,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:47:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:38,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:47:38,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:47:38,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:47:38,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:47:38,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:38,469 INFO L87 Difference]: Start difference. First operand 80104 states and 93292 transitions. Second operand 4 states. [2018-10-24 14:48:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:01,449 INFO L93 Difference]: Finished difference Result 286225 states and 337230 transitions. [2018-10-24 14:48:01,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:01,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2018-10-24 14:48:01,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:01,830 INFO L225 Difference]: With dead ends: 286225 [2018-10-24 14:48:01,830 INFO L226 Difference]: Without dead ends: 207489 [2018-10-24 14:48:01,893 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 333 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 14:48:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207489 states. [2018-10-24 14:48:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207489 to 133370. [2018-10-24 14:48:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133370 states. [2018-10-24 14:48:03,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133370 states to 133370 states and 154665 transitions. [2018-10-24 14:48:03,631 INFO L78 Accepts]: Start accepts. Automaton has 133370 states and 154665 transitions. Word has length 333 [2018-10-24 14:48:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:03,631 INFO L481 AbstractCegarLoop]: Abstraction has 133370 states and 154665 transitions. [2018-10-24 14:48:03,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 133370 states and 154665 transitions. [2018-10-24 14:48:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2018-10-24 14:48:03,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:03,648 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:48:03,648 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:03,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:03,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1718651523, now seen corresponding path program 1 times [2018-10-24 14:48:03,649 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:03,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:03,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:03,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:03,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:05,066 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 14:48:05,587 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:48:06,184 WARN L179 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 14:48:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 435 proven. 4 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2018-10-24 14:48:06,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:48:06,804 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 14:48:06,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:06,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:48:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2018-10-24 14:48:07,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:48:07,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:48:07,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:48:07,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:48:07,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:48:07,340 INFO L87 Difference]: Start difference. First operand 133370 states and 154665 transitions. Second operand 5 states. [2018-10-24 14:48:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:30,895 INFO L93 Difference]: Finished difference Result 287231 states and 331289 transitions. [2018-10-24 14:48:30,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:48:30,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 636 [2018-10-24 14:48:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:31,103 INFO L225 Difference]: With dead ends: 287231 [2018-10-24 14:48:31,103 INFO L226 Difference]: Without dead ends: 148394 [2018-10-24 14:48:31,167 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 636 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:48:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148394 states. [2018-10-24 14:48:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148394 to 134722. [2018-10-24 14:48:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134722 states. [2018-10-24 14:48:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134722 states to 134722 states and 147923 transitions. [2018-10-24 14:48:32,458 INFO L78 Accepts]: Start accepts. Automaton has 134722 states and 147923 transitions. Word has length 636 [2018-10-24 14:48:32,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:32,459 INFO L481 AbstractCegarLoop]: Abstraction has 134722 states and 147923 transitions. [2018-10-24 14:48:32,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:48:32,459 INFO L276 IsEmpty]: Start isEmpty. Operand 134722 states and 147923 transitions. [2018-10-24 14:48:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2018-10-24 14:48:32,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:32,496 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:48:32,496 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:32,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:32,497 INFO L82 PathProgramCache]: Analyzing trace with hash 553125180, now seen corresponding path program 1 times [2018-10-24 14:48:32,497 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:32,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:32,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:32,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:32,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-24 14:48:34,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:34,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:48:34,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:34,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:34,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:34,283 INFO L87 Difference]: Start difference. First operand 134722 states and 147923 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 14:48:42,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:42,108 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:48:42,113 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:48:42,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:48:42 BoogieIcfgContainer [2018-10-24 14:48:42,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:48:42,114 INFO L168 Benchmark]: Toolchain (without parser) took 234023.44 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -136.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 14:48:42,115 INFO L168 Benchmark]: CDTParser took 0.23 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 14:48:42,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3331.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:42,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 1263.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 857.2 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:42,119 INFO L168 Benchmark]: Boogie Preprocessor took 810.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 110.2 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:42,120 INFO L168 Benchmark]: RCFGBuilder took 17784.56 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 292.0 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -367.6 MB). Peak memory consumption was 847.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:48:42,121 INFO L168 Benchmark]: TraceAbstraction took 210826.84 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.5 GB in the end (delta: 862.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 14:48:42,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3331.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1263.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 857.2 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 810.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 110.2 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17784.56 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 292.0 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -367.6 MB). Peak memory consumption was 847.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210826.84 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.5 GB in the end (delta: 862.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 70). 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 (107826 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 210.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 194.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8715 SDtfs, 42302 SDslu, 3842 SDs, 0 SdLazy, 89982 SolverSat, 18151 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 165.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1338 GetRequests, 1299 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.9s 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: 5.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 92036 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 3873 NumberOfCodeBlocks, 3873 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3863 ConstructedInterpolants, 0 QuantifiedInterpolants, 7032041 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1586 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2227/2300 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown