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/Problem13_label48_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:49:54,026 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:49:54,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:49:54,043 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:49:54,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:49:54,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:49:54,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:49:54,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:49:54,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:49:54,050 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:49:54,051 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:49:54,051 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:49:54,052 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:49:54,053 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:49:54,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:49:54,055 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:49:54,056 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:49:54,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:49:54,062 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:49:54,063 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:49:54,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:49:54,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:49:54,075 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:49:54,075 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:49:54,076 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:49:54,077 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:49:54,078 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:49:54,078 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:49:54,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:49:54,082 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:49:54,083 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:49:54,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:49:54,083 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:49:54,084 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:49:54,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:49:54,088 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:49:54,088 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 [2018-10-26 23:49:54,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:49:54,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:49:54,123 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:49:54,124 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:49:54,124 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:49:54,124 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:49:54,124 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:49:54,124 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:49:54,125 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:49:54,128 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:49:54,128 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:49:54,128 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:49:54,129 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:49:54,129 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:49:54,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:49:54,130 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:49:54,130 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:49:54,130 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:49:54,130 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:49:54,130 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:49:54,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:49:54,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:49:54,131 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:49:54,131 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:49:54,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:49:54,133 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:49:54,134 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:49:54,134 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:49:54,134 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:49:54,134 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:49:54,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:49:54,135 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:49:54,136 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:49:54,136 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:49:54,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:49:54,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:49:54,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:49:54,213 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:49:54,213 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:49:54,214 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c [2018-10-26 23:49:54,282 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/71fddeac7/b579cb530fe74284b111ae7487ed9c72/FLAGef7d94168 [2018-10-26 23:49:55,044 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:49:55,045 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c [2018-10-26 23:49:55,092 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/71fddeac7/b579cb530fe74284b111ae7487ed9c72/FLAGef7d94168 [2018-10-26 23:49:55,113 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/71fddeac7/b579cb530fe74284b111ae7487ed9c72 [2018-10-26 23:49:55,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:49:55,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:49:55,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:49:55,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:49:55,135 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:49:55,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:49:55" (1/1) ... [2018-10-26 23:49:55,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c187ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:55, skipping insertion in model container [2018-10-26 23:49:55,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:49:55" (1/1) ... [2018-10-26 23:49:55,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:49:55,331 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:49:56,755 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:49:56,762 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:49:57,591 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:49:57,634 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:49:57,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57 WrapperNode [2018-10-26 23:49:57,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:49:57,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:49:57,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:49:57,636 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:49:57,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:57,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:49:58,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:49:58,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:49:58,269 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:49:58,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (1/1) ... [2018-10-26 23:49:58,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:49:58,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:49:58,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:49:58,696 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:49:58,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (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 [2018-10-26 23:49:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:49:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:49:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-26 23:49:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-26 23:49:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-26 23:49:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-26 23:49:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-26 23:49:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-26 23:49:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:49:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:49:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:49:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:49:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:49:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:50:10,559 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:50:10,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:50:10 BoogieIcfgContainer [2018-10-26 23:50:10,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:50:10,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:50:10,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:50:10,565 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:50:10,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:49:55" (1/3) ... [2018-10-26 23:50:10,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e20a707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:50:10, skipping insertion in model container [2018-10-26 23:50:10,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:49:57" (2/3) ... [2018-10-26 23:50:10,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e20a707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:50:10, skipping insertion in model container [2018-10-26 23:50:10,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:50:10" (3/3) ... [2018-10-26 23:50:10,569 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label48_false-unreach-call.c [2018-10-26 23:50:10,579 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:50:10,590 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:50:10,608 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:50:10,658 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:50:10,658 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:50:10,659 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:50:10,659 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:50:10,659 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:50:10,659 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:50:10,659 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:50:10,659 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:50:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-26 23:50:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 23:50:10,715 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:50:10,716 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:50:10,718 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:50:10,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:50:10,725 INFO L82 PathProgramCache]: Analyzing trace with hash 369225451, now seen corresponding path program 1 times [2018-10-26 23:50:10,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:50:10,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:10,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:50:10,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:10,785 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:50:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:50:11,148 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:50:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:50:11,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:50:11,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:50:11,258 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:50:11,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:50:11,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:50:11,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:50:11,286 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-26 23:50:21,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:50:21,517 INFO L93 Difference]: Finished difference Result 3104 states and 5729 transitions. [2018-10-26 23:50:21,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:50:21,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-26 23:50:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:50:21,565 INFO L225 Difference]: With dead ends: 3104 [2018-10-26 23:50:21,565 INFO L226 Difference]: Without dead ends: 1982 [2018-10-26 23:50:21,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:50:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2018-10-26 23:50:21,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1965. [2018-10-26 23:50:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2018-10-26 23:50:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3515 transitions. [2018-10-26 23:50:21,748 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3515 transitions. Word has length 13 [2018-10-26 23:50:21,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:50:21,749 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 3515 transitions. [2018-10-26 23:50:21,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:50:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3515 transitions. [2018-10-26 23:50:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-26 23:50:21,754 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:50:21,754 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 23:50:21,755 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:50:21,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:50:21,756 INFO L82 PathProgramCache]: Analyzing trace with hash 167202350, now seen corresponding path program 1 times [2018-10-26 23:50:21,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:50:21,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:21,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:50:21,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:21,759 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:50:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:50:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:50:22,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:50:22,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:50:22,173 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:50:22,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:50:22,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:50:22,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:50:22,177 INFO L87 Difference]: Start difference. First operand 1965 states and 3515 transitions. Second operand 5 states. [2018-10-26 23:50:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:50:36,416 INFO L93 Difference]: Finished difference Result 5645 states and 10294 transitions. [2018-10-26 23:50:36,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:50:36,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-10-26 23:50:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:50:36,455 INFO L225 Difference]: With dead ends: 5645 [2018-10-26 23:50:36,456 INFO L226 Difference]: Without dead ends: 3686 [2018-10-26 23:50:36,463 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 [2018-10-26 23:50:36,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2018-10-26 23:50:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3654. [2018-10-26 23:50:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3654 states. [2018-10-26 23:50:36,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5960 transitions. [2018-10-26 23:50:36,586 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5960 transitions. Word has length 83 [2018-10-26 23:50:36,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:50:36,586 INFO L481 AbstractCegarLoop]: Abstraction has 3654 states and 5960 transitions. [2018-10-26 23:50:36,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:50:36,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5960 transitions. [2018-10-26 23:50:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-26 23:50:36,590 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:50:36,590 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 23:50:36,591 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:50:36,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:50:36,591 INFO L82 PathProgramCache]: Analyzing trace with hash 360362066, now seen corresponding path program 1 times [2018-10-26 23:50:36,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:50:36,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:36,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:50:36,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:36,593 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:50:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:50:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:50:36,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:50:36,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:50:36,897 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:50:36,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:50:36,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:50:36,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:50:36,899 INFO L87 Difference]: Start difference. First operand 3654 states and 5960 transitions. Second operand 5 states. [2018-10-26 23:50:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:50:55,346 INFO L93 Difference]: Finished difference Result 10942 states and 18366 transitions. [2018-10-26 23:50:55,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 23:50:55,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-10-26 23:50:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:50:55,397 INFO L225 Difference]: With dead ends: 10942 [2018-10-26 23:50:55,397 INFO L226 Difference]: Without dead ends: 7294 [2018-10-26 23:50:55,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:50:55,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2018-10-26 23:50:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 7137. [2018-10-26 23:50:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7137 states. [2018-10-26 23:50:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 10864 transitions. [2018-10-26 23:50:55,632 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 10864 transitions. Word has length 85 [2018-10-26 23:50:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:50:55,633 INFO L481 AbstractCegarLoop]: Abstraction has 7137 states and 10864 transitions. [2018-10-26 23:50:55,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:50:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 10864 transitions. [2018-10-26 23:50:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-26 23:50:55,638 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:50:55,638 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 23:50:55,638 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:50:55,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:50:55,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1054871902, now seen corresponding path program 1 times [2018-10-26 23:50:55,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:50:55,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:55,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:50:55,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:50:55,640 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:50:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:50:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:50:55,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:50:55,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:50:55,794 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:50:55,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:50:55,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:50:55,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:50:55,795 INFO L87 Difference]: Start difference. First operand 7137 states and 10864 transitions. Second operand 3 states. [2018-10-26 23:51:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:51:01,907 INFO L93 Difference]: Finished difference Result 20912 states and 33132 transitions. [2018-10-26 23:51:01,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:51:01,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2018-10-26 23:51:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:51:01,975 INFO L225 Difference]: With dead ends: 20912 [2018-10-26 23:51:01,975 INFO L226 Difference]: Without dead ends: 13781 [2018-10-26 23:51:02,019 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:51:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2018-10-26 23:51:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13775. [2018-10-26 23:51:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13775 states. [2018-10-26 23:51:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13775 states to 13775 states and 20149 transitions. [2018-10-26 23:51:02,606 INFO L78 Accepts]: Start accepts. Automaton has 13775 states and 20149 transitions. Word has length 107 [2018-10-26 23:51:02,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:51:02,606 INFO L481 AbstractCegarLoop]: Abstraction has 13775 states and 20149 transitions. [2018-10-26 23:51:02,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:51:02,607 INFO L276 IsEmpty]: Start isEmpty. Operand 13775 states and 20149 transitions. [2018-10-26 23:51:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-26 23:51:02,616 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:51:02,616 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:51:02,616 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:51:02,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:02,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1605641714, now seen corresponding path program 1 times [2018-10-26 23:51:02,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:51:02,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:02,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:51:02,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:02,618 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:51:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:51:02,915 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:51:03,306 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 12 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:51:03,307 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:51:03,307 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:51:03,308 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-10-26 23:51:03,310 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2631], [2633], [2636], [2644], [2652], [2660], [2668], [2676], [2684], [2692], [2700], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3202], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3273], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-26 23:51:03,420 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:51:03,421 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:51:08,638 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:51:08,640 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-26 23:51:08,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:08,648 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:51:12,301 INFO L227 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 71% of their original sizes. [2018-10-26 23:51:12,301 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:51:13,978 INFO L415 sIntCurrentIteration]: We unified 202 AI predicates to 202 [2018-10-26 23:51:13,979 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:51:13,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:51:13,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-26 23:51:13,980 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:51:13,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-26 23:51:13,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-26 23:51:13,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-26 23:51:13,981 INFO L87 Difference]: Start difference. First operand 13775 states and 20149 transitions. Second operand 11 states. [2018-10-26 23:51:46,593 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-26 23:53:36,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 23:53:36,373 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:53:36,379 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:53:36,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:53:36 BoogieIcfgContainer [2018-10-26 23:53:36,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:53:36,380 INFO L168 Benchmark]: Toolchain (without parser) took 221252.01 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 2.3 GB in the end (delta: -936.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-26 23:53:36,382 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. [2018-10-26 23:53:36,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2504.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-26 23:53:36,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 632.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-26 23:53:36,384 INFO L168 Benchmark]: Boogie Preprocessor took 426.48 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2018-10-26 23:53:36,385 INFO L168 Benchmark]: RCFGBuilder took 11865.12 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 189.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 10.1 MB). Peak memory consumption was 665.1 MB. Max. memory is 7.1 GB. [2018-10-26 23:53:36,386 INFO L168 Benchmark]: TraceAbstraction took 205817.87 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -155.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-26 23:53:36,392 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 2504.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 632.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 426.48 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11865.12 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 189.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 10.1 MB). Peak memory consumption was 665.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205817.87 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -155.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (13775states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (5587 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 205.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 191.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2438 SDtfs, 10702 SDslu, 1649 SDs, 0 SdLazy, 15877 SolverSat, 4619 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 142.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 233 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13775occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9952018278750951 AbsIntWeakeningRatio, 0.13366336633663367 AbsIntAvgWeakeningVarsNumRemoved, 52.53465346534654 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 212 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 209150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 35/117 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown