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/Problem16_label01_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:04:46,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:04:46,063 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:04:46,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:04:46,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:04:46,079 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:04:46,080 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:04:46,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:04:46,085 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:04:46,085 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:04:46,086 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:04:46,087 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:04:46,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:04:46,099 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:04:46,100 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:04:46,101 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:04:46,102 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:04:46,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:04:46,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:04:46,107 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:04:46,108 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:04:46,109 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:04:46,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:04:46,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:04:46,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:04:46,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:04:46,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:04:46,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:04:46,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:04:46,124 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:04:46,125 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:04:46,125 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:04:46,126 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:04:46,126 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:04:46,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:04:46,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:04:46,130 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 00:04:46,146 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:04:46,146 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:04:46,147 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:04:46,147 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:04:46,147 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:04:46,147 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:04:46,148 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:04:46,148 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:04:46,148 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:04:46,148 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:04:46,148 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:04:46,149 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:04:46,149 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:04:46,150 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:04:46,150 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:04:46,150 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:04:46,150 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:04:46,150 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:04:46,150 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:04:46,151 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:04:46,151 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:04:46,151 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:04:46,151 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:04:46,151 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:04:46,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:04:46,152 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:04:46,152 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:04:46,152 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:04:46,152 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:04:46,153 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:04:46,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:04:46,153 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:04:46,153 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:04:46,153 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:04:46,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:04:46,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:04:46,219 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:04:46,221 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:04:46,221 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:04:46,222 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label01_false-unreach-call.c [2018-10-27 00:04:46,284 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e7a72aba4/6afd54db59284a05a3534c5e4d0f9dbc/FLAGb15151952 [2018-10-27 00:04:46,917 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:04:46,918 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label01_false-unreach-call.c [2018-10-27 00:04:46,938 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e7a72aba4/6afd54db59284a05a3534c5e4d0f9dbc/FLAGb15151952 [2018-10-27 00:04:46,957 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e7a72aba4/6afd54db59284a05a3534c5e4d0f9dbc [2018-10-27 00:04:46,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:04:46,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:04:46,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:04:46,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:04:46,980 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:04:46,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:04:46" (1/1) ... [2018-10-27 00:04:46,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:46, skipping insertion in model container [2018-10-27 00:04:46,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:04:46" (1/1) ... [2018-10-27 00:04:46,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:04:47,094 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:04:47,808 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:04:47,813 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:04:48,101 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:04:48,123 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:04:48,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48 WrapperNode [2018-10-27 00:04:48,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:04:48,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:04:48,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:04:48,125 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:04:48,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:04:48,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:04:48,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:04:48,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:04:48,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (1/1) ... [2018-10-27 00:04:48,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:04:48,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:04:48,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:04:48,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:04:48,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (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 00:04:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:04:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:04:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 00:04:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 00:04:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:04:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:04:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:04:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:04:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:04:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:04:55,192 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:04:55,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:04:55 BoogieIcfgContainer [2018-10-27 00:04:55,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:04:55,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:04:55,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:04:55,198 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:04:55,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:04:46" (1/3) ... [2018-10-27 00:04:55,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433d0341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:04:55, skipping insertion in model container [2018-10-27 00:04:55,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:48" (2/3) ... [2018-10-27 00:04:55,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433d0341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:04:55, skipping insertion in model container [2018-10-27 00:04:55,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:04:55" (3/3) ... [2018-10-27 00:04:55,202 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label01_false-unreach-call.c [2018-10-27 00:04:55,213 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:04:55,223 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:04:55,242 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:04:55,285 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:04:55,286 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:04:55,286 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:04:55,286 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:04:55,286 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:04:55,286 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:04:55,286 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:04:55,287 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:04:55,330 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 00:04:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 00:04:55,339 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:04:55,340 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] [2018-10-27 00:04:55,342 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:04:55,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:04:55,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1628611221, now seen corresponding path program 1 times [2018-10-27 00:04:55,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:04:55,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:04:55,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:04:55,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:04:55,406 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:04:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:04:55,839 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:04:55,952 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 00:04:55,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:04:55,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:04:55,956 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:04:55,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:04:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:04:55,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:04:55,991 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-27 00:05:00,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:05:00,320 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-27 00:05:00,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:05:00,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-10-27 00:05:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:05:00,349 INFO L225 Difference]: With dead ends: 1156 [2018-10-27 00:05:00,349 INFO L226 Difference]: Without dead ends: 744 [2018-10-27 00:05:00,359 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 [2018-10-27 00:05:00,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-27 00:05:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-27 00:05:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 00:05:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-10-27 00:05:00,465 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 33 [2018-10-27 00:05:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:05:00,465 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-10-27 00:05:00,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:05:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-10-27 00:05:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-27 00:05:00,476 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:05:00,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:00,477 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:05:00,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:05:00,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1521195448, now seen corresponding path program 1 times [2018-10-27 00:05:00,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:05:00,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:05:00,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:05:00,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:05:00,481 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:05:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:05:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:05:00,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:05:00,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:05:00,893 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:05:00,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:05:00,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:05:00,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:05:00,896 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-10-27 00:05:07,795 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 00:05:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:05:19,147 INFO L93 Difference]: Finished difference Result 2959 states and 5494 transitions. [2018-10-27 00:05:19,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 00:05:19,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-10-27 00:05:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:05:19,177 INFO L225 Difference]: With dead ends: 2959 [2018-10-27 00:05:19,177 INFO L226 Difference]: Without dead ends: 2221 [2018-10-27 00:05:19,193 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:05:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-10-27 00:05:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2170. [2018-10-27 00:05:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2018-10-27 00:05:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3672 transitions. [2018-10-27 00:05:19,306 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3672 transitions. Word has length 109 [2018-10-27 00:05:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:05:19,307 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 3672 transitions. [2018-10-27 00:05:19,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:05:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3672 transitions. [2018-10-27 00:05:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-27 00:05:19,318 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:05:19,318 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 00:05:19,318 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:05:19,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:05:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1648687235, now seen corresponding path program 1 times [2018-10-27 00:05:19,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:05:19,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:05:19,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:05:19,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:05:19,321 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:05:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:05:19,633 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:05:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 00:05:20,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:05:20,078 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:05:20,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-10-27 00:05:20,081 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [343], [345], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [712], [713], [717], [721], [725], [728], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 00:05:20,163 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:05:20,163 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:05:22,501 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 00:05:22,579 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:05:22,580 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 00:05:22,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:05:22,610 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:05:24,277 INFO L227 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 77.74% of their original sizes. [2018-10-27 00:05:24,278 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:05:24,572 INFO L415 sIntCurrentIteration]: We unified 196 AI predicates to 196 [2018-10-27 00:05:24,573 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:05:24,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:05:24,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 00:05:24,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:05:24,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:05:24,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:05:24,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:05:24,577 INFO L87 Difference]: Start difference. First operand 2170 states and 3672 transitions. Second operand 7 states. [2018-10-27 00:06:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:06:03,097 INFO L93 Difference]: Finished difference Result 4674 states and 7868 transitions. [2018-10-27 00:06:03,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:06:03,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2018-10-27 00:06:03,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:06:03,114 INFO L225 Difference]: With dead ends: 4674 [2018-10-27 00:06:03,114 INFO L226 Difference]: Without dead ends: 2510 [2018-10-27 00:06:03,127 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 197 GetRequests, 191 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 00:06:03,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2018-10-27 00:06:03,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2508. [2018-10-27 00:06:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2018-10-27 00:06:03,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 4019 transitions. [2018-10-27 00:06:03,211 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 4019 transitions. Word has length 197 [2018-10-27 00:06:03,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:06:03,212 INFO L481 AbstractCegarLoop]: Abstraction has 2508 states and 4019 transitions. [2018-10-27 00:06:03,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:06:03,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 4019 transitions. [2018-10-27 00:06:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-27 00:06:03,216 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:06:03,216 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 00:06:03,216 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:06:03,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:06:03,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1814867883, now seen corresponding path program 1 times [2018-10-27 00:06:03,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:06:03,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:06:03,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:06:03,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:06:03,218 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:06:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:06:03,479 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:06:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 53 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-27 00:06:03,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:06:03,553 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:06:03,553 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-27 00:06:03,553 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [343], [345], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 00:06:03,558 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:06:03,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:06:05,446 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 00:06:14,718 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:06:14,718 INFO L272 AbstractInterpreter]: Visited 100 different actions 381 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 00:06:14,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:06:14,726 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:06:16,757 INFO L227 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 79.82% of their original sizes. [2018-10-27 00:06:16,757 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:07:42,592 INFO L415 sIntCurrentIteration]: We unified 208 AI predicates to 208 [2018-10-27 00:07:42,593 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:07:42,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:07:42,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-10-27 00:07:42,593 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:07:42,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 00:07:42,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 00:07:42,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-10-27 00:07:42,595 INFO L87 Difference]: Start difference. First operand 2508 states and 4019 transitions. Second operand 16 states. Received shutdown request... [2018-10-27 00:08:45,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 00:08:45,848 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:08:45,853 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:08:45,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:08:45 BoogieIcfgContainer [2018-10-27 00:08:45,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:08:45,854 INFO L168 Benchmark]: Toolchain (without parser) took 238885.44 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -268.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-27 00:08:45,855 INFO L168 Benchmark]: CDTParser took 0.21 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 00:08:45,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1149.97 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:08:45,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -871.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:08:45,858 INFO L168 Benchmark]: Boogie Preprocessor took 179.41 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:08:45,858 INFO L168 Benchmark]: RCFGBuilder took 6596.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 269.2 MB). Peak memory consumption was 269.2 MB. Max. memory is 7.1 GB. [2018-10-27 00:08:45,859 INFO L168 Benchmark]: TraceAbstraction took 230658.96 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 235.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 00:08:45,864 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1149.97 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 292.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -871.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 179.41 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6596.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 269.2 MB). Peak memory consumption was 269.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230658.96 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 235.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 85). Cancelled while BasicCegarLoop was constructing difference of abstraction (2508states) and FLOYD_HOARE automaton (currently 16 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (674 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 230.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 124.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 739 SDtfs, 3907 SDslu, 471 SDs, 0 SdLazy, 5997 SolverSat, 1598 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 57.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 427 GetRequests, 270 SyntacticMatches, 122 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 88.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2508occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9945831539675706 AbsIntWeakeningRatio, 0.12871287128712872 AbsIntAvgWeakeningVarsNumRemoved, 446.53960396039605 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 544 ConstructedInterpolants, 0 QuantifiedInterpolants, 340212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 205/294 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown