java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:43:27,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:43:27,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:43:27,094 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:43:27,094 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:43:27,095 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:43:27,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:43:27,099 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:43:27,102 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:43:27,103 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:43:27,105 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:43:27,105 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:43:27,107 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:43:27,108 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:43:27,109 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:43:27,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:43:27,113 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:43:27,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:43:27,124 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:43:27,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:43:27,130 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:43:27,131 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:43:27,136 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:43:27,136 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:43:27,136 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:43:27,137 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:43:27,138 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:43:27,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:43:27,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:43:27,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:43:27,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:43:27,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:43:27,145 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:43:27,146 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:43:27,147 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:43:27,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:43:27,148 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:43:27,168 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:43:27,168 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:43:27,169 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:43:27,169 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:43:27,170 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:43:27,170 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:43:27,170 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:43:27,170 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:43:27,170 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:43:27,171 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:43:27,171 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:43:27,171 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:43:27,172 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:43:27,172 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:43:27,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:43:27,172 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:43:27,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:43:27,173 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:43:27,173 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:43:27,173 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:43:27,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:43:27,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:43:27,174 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:43:27,174 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:43:27,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:43:27,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:43:27,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:43:27,175 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:43:27,175 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:43:27,175 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:43:27,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:43:27,175 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:43:27,175 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:43:27,176 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:43:27,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:43:27,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:43:27,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:43:27,260 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:43:27,260 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:43:27,261 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c [2018-10-27 03:43:27,336 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/822c8c186/bf4725d6436944ad8484e0af16f19119/FLAGfae5203bc [2018-10-27 03:43:27,991 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:43:27,992 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c [2018-10-27 03:43:28,024 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/822c8c186/bf4725d6436944ad8484e0af16f19119/FLAGfae5203bc [2018-10-27 03:43:28,043 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/822c8c186/bf4725d6436944ad8484e0af16f19119 [2018-10-27 03:43:28,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:43:28,058 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:43:28,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:43:28,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:43:28,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:43:28,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:43:28" (1/1) ... [2018-10-27 03:43:28,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ee9256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:28, skipping insertion in model container [2018-10-27 03:43:28,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:43:28" (1/1) ... [2018-10-27 03:43:28,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:43:28,211 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:43:29,285 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:43:29,289 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:43:29,714 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:43:29,743 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:43:29,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29 WrapperNode [2018-10-27 03:43:29,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:43:29,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:43:29,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:43:29,745 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:43:29,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:29,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:43:30,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:43:30,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:43:30,094 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:43:30,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (1/1) ... [2018-10-27 03:43:30,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:43:30,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:43:30,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:43:30,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:43:30,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (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 [2018-10-27 03:43:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:43:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:43:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 03:43:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 03:43:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:43:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:43:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:43:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:43:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:43:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:43:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:43:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:43:37,830 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:43:37,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:43:37 BoogieIcfgContainer [2018-10-27 03:43:37,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:43:37,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:43:37,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:43:37,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:43:37,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:43:28" (1/3) ... [2018-10-27 03:43:37,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed1aa45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:43:37, skipping insertion in model container [2018-10-27 03:43:37,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:43:29" (2/3) ... [2018-10-27 03:43:37,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed1aa45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:43:37, skipping insertion in model container [2018-10-27 03:43:37,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:43:37" (3/3) ... [2018-10-27 03:43:37,839 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label37_true-unreach-call.c [2018-10-27 03:43:37,849 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:43:37,859 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:43:37,877 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:43:37,923 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:43:37,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:43:37,923 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:43:37,923 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:43:37,924 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:43:37,924 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:43:37,924 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:43:37,924 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:43:37,967 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 03:43:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-27 03:43:37,976 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:37,977 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:43:37,980 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:37,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash -986034585, now seen corresponding path program 1 times [2018-10-27 03:43:37,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:38,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:38,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:38,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:38,045 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:43:38,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:38,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:43:38,568 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:38,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:43:38,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:43:38,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:43:38,597 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 03:43:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:45,361 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 03:43:45,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:43:45,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-10-27 03:43:45,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:45,396 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 03:43:45,396 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 03:43:45,407 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:43:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 03:43:45,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 03:43:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 03:43:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-27 03:43:45,556 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 63 [2018-10-27 03:43:45,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:45,556 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-27 03:43:45,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:43:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-27 03:43:45,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 03:43:45,565 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:45,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:43:45,566 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:45,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:45,566 INFO L82 PathProgramCache]: Analyzing trace with hash 149408540, now seen corresponding path program 1 times [2018-10-27 03:43:45,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:45,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:45,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:45,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:45,568 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:45,879 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:43:45,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:45,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:43:45,880 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:45,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:43:45,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:43:45,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:43:45,882 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 5 states. [2018-10-27 03:43:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:53,816 INFO L93 Difference]: Finished difference Result 3698 states and 6787 transitions. [2018-10-27 03:43:53,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:43:53,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-10-27 03:43:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:53,835 INFO L225 Difference]: With dead ends: 3698 [2018-10-27 03:43:53,835 INFO L226 Difference]: Without dead ends: 2230 [2018-10-27 03:43:53,840 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:43:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2018-10-27 03:43:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2209. [2018-10-27 03:43:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2018-10-27 03:43:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3833 transitions. [2018-10-27 03:43:53,916 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3833 transitions. Word has length 135 [2018-10-27 03:43:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:53,916 INFO L481 AbstractCegarLoop]: Abstraction has 2209 states and 3833 transitions. [2018-10-27 03:43:53,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:43:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3833 transitions. [2018-10-27 03:43:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-10-27 03:43:53,920 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:53,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:43:53,921 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:53,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:53,921 INFO L82 PathProgramCache]: Analyzing trace with hash -81887667, now seen corresponding path program 1 times [2018-10-27 03:43:53,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:53,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:53,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:53,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:53,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:43:54,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:54,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:43:54,235 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:54,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:43:54,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:43:54,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:43:54,237 INFO L87 Difference]: Start difference. First operand 2209 states and 3833 transitions. Second operand 6 states. [2018-10-27 03:44:02,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:44:02,001 INFO L93 Difference]: Finished difference Result 5866 states and 10122 transitions. [2018-10-27 03:44:02,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:44:02,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-10-27 03:44:02,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:44:02,027 INFO L225 Difference]: With dead ends: 5866 [2018-10-27 03:44:02,028 INFO L226 Difference]: Without dead ends: 3663 [2018-10-27 03:44:02,037 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:44:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2018-10-27 03:44:02,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3639. [2018-10-27 03:44:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3639 states. [2018-10-27 03:44:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5517 transitions. [2018-10-27 03:44:02,151 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5517 transitions. Word has length 158 [2018-10-27 03:44:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:44:02,152 INFO L481 AbstractCegarLoop]: Abstraction has 3639 states and 5517 transitions. [2018-10-27 03:44:02,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:44:02,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5517 transitions. [2018-10-27 03:44:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-10-27 03:44:02,156 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:44:02,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:44:02,160 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:44:02,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:44:02,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2044577259, now seen corresponding path program 1 times [2018-10-27 03:44:02,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:44:02,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:44:02,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:44:02,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:44:02,162 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:44:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:44:02,479 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:44:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:44:02,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:44:02,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:44:02,652 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:44:02,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:44:02,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:44:02,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:44:02,653 INFO L87 Difference]: Start difference. First operand 3639 states and 5517 transitions. Second operand 6 states. [2018-10-27 03:44:10,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:44:10,999 INFO L93 Difference]: Finished difference Result 8735 states and 13271 transitions. [2018-10-27 03:44:11,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:44:11,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-10-27 03:44:11,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:44:11,024 INFO L225 Difference]: With dead ends: 8735 [2018-10-27 03:44:11,024 INFO L226 Difference]: Without dead ends: 5102 [2018-10-27 03:44:11,036 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:44:11,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2018-10-27 03:44:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5084. [2018-10-27 03:44:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5084 states. [2018-10-27 03:44:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 6940 transitions. [2018-10-27 03:44:11,148 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 6940 transitions. Word has length 162 [2018-10-27 03:44:11,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:44:11,148 INFO L481 AbstractCegarLoop]: Abstraction has 5084 states and 6940 transitions. [2018-10-27 03:44:11,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:44:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 6940 transitions. [2018-10-27 03:44:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-27 03:44:11,153 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:44:11,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:44:11,153 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:44:11,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:44:11,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1457890224, now seen corresponding path program 1 times [2018-10-27 03:44:11,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:44:11,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:44:11,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:44:11,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:44:11,155 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:44:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:44:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:44:11,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:44:11,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:44:11,453 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:44:11,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:44:11,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:44:11,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:44:11,454 INFO L87 Difference]: Start difference. First operand 5084 states and 6940 transitions. Second operand 6 states. [2018-10-27 03:44:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:44:17,069 INFO L93 Difference]: Finished difference Result 13307 states and 18750 transitions. [2018-10-27 03:44:17,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:44:17,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 193 [2018-10-27 03:44:17,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:44:17,112 INFO L225 Difference]: With dead ends: 13307 [2018-10-27 03:44:17,113 INFO L226 Difference]: Without dead ends: 8229 [2018-10-27 03:44:17,125 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:44:17,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2018-10-27 03:44:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 8128. [2018-10-27 03:44:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8128 states. [2018-10-27 03:44:17,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 10817 transitions. [2018-10-27 03:44:17,334 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 10817 transitions. Word has length 193 [2018-10-27 03:44:17,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:44:17,335 INFO L481 AbstractCegarLoop]: Abstraction has 8128 states and 10817 transitions. [2018-10-27 03:44:17,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:44:17,336 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 10817 transitions. [2018-10-27 03:44:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-27 03:44:17,342 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:44:17,343 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, 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] [2018-10-27 03:44:17,343 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:44:17,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:44:17,344 INFO L82 PathProgramCache]: Analyzing trace with hash 765440314, now seen corresponding path program 1 times [2018-10-27 03:44:17,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:44:17,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:44:17,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:44:17,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:44:17,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:44:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:44:17,771 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 112 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:44:17,771 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:44:17,772 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:44:17,773 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-10-27 03:44:17,775 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2027], [2029], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:44:17,840 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:44:17,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:44:19,987 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:44:19,991 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:44:20,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:44:20,021 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:44:21,879 INFO L227 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 78.3% of their original sizes. [2018-10-27 03:44:21,880 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:44:22,104 INFO L415 sIntCurrentIteration]: We unified 225 AI predicates to 225 [2018-10-27 03:44:22,105 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:44:22,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:44:22,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 03:44:22,106 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:44:22,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:44:22,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:44:22,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:44:22,107 INFO L87 Difference]: Start difference. First operand 8128 states and 10817 transitions. Second operand 7 states. [2018-10-27 03:44:25,097 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:46:03,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:46:03,655 INFO L93 Difference]: Finished difference Result 16955 states and 22499 transitions. [2018-10-27 03:46:03,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:46:03,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2018-10-27 03:46:03,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:46:03,684 INFO L225 Difference]: With dead ends: 16955 [2018-10-27 03:46:03,685 INFO L226 Difference]: Without dead ends: 8833 [2018-10-27 03:46:03,699 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:46:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8833 states. [2018-10-27 03:46:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8833 to 8831. [2018-10-27 03:46:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8831 states. [2018-10-27 03:46:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8831 states to 8831 states and 11532 transitions. [2018-10-27 03:46:03,883 INFO L78 Accepts]: Start accepts. Automaton has 8831 states and 11532 transitions. Word has length 226 [2018-10-27 03:46:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:46:03,883 INFO L481 AbstractCegarLoop]: Abstraction has 8831 states and 11532 transitions. [2018-10-27 03:46:03,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:46:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8831 states and 11532 transitions. [2018-10-27 03:46:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-10-27 03:46:03,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:46:03,895 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:46:03,896 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:46:03,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:03,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1582089628, now seen corresponding path program 1 times [2018-10-27 03:46:03,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:46:03,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:03,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:46:03,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:03,898 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:46:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:46:04,373 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 03:46:04,731 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-27 03:46:05,095 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 227 proven. 171 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:46:05,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:46:05,095 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:46:05,096 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 414 with the following transitions: [2018-10-27 03:46:05,097 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2027], [2029], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:46:05,105 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:46:05,106 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:46:17,028 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:46:17,028 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:46:17,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:17,039 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:46:21,466 INFO L227 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 78.49% of their original sizes. [2018-10-27 03:46:21,466 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:46:46,739 INFO L415 sIntCurrentIteration]: We unified 412 AI predicates to 412 [2018-10-27 03:46:46,739 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:46:46,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:46:46,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [11] total 25 [2018-10-27 03:46:46,740 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:46:46,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 03:46:46,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 03:46:46,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-10-27 03:46:46,742 INFO L87 Difference]: Start difference. First operand 8831 states and 11532 transitions. Second operand 16 states. Received shutdown request... [2018-10-27 03:47:21,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 03:47:21,691 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:47:21,696 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:47:21,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:47:21 BoogieIcfgContainer [2018-10-27 03:47:21,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:47:21,697 INFO L168 Benchmark]: Toolchain (without parser) took 233640.59 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 919.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:47:21,698 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-27 03:47:21,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1685.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:47:21,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 348.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -966.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:47:21,702 INFO L168 Benchmark]: Boogie Preprocessor took 177.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:47:21,703 INFO L168 Benchmark]: RCFGBuilder took 7560.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 523.3 MB). Peak memory consumption was 523.3 MB. Max. memory is 7.1 GB. [2018-10-27 03:47:21,704 INFO L168 Benchmark]: TraceAbstraction took 223864.36 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 409.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:47:21,711 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1685.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 348.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -966.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7560.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 523.3 MB). Peak memory consumption was 523.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223864.36 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 409.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 177]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 177). Cancelled while BasicCegarLoop was constructing difference of abstraction (8831states) and FLOYD_HOARE automaton (currently 9 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (124 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 223.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 173.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1428 SDtfs, 14001 SDslu, 919 SDs, 0 SdLazy, 24699 SolverSat, 5606 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 686 GetRequests, 594 SyntacticMatches, 40 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 26.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8831occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961635155734533 AbsIntWeakeningRatio, 0.09105180533751962 AbsIntAvgWeakeningVarsNumRemoved, 331.7723704866562 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 166 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1350 NumberOfCodeBlocks, 1350 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1343 ConstructedInterpolants, 0 QuantifiedInterpolants, 1960173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 573/811 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown