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/Problem17_label53_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:54:44,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:54:44,170 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:54:44,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:54:44,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:54:44,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:54:44,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:54:44,188 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:54:44,189 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:54:44,190 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:54:44,191 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:54:44,191 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:54:44,192 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:54:44,193 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:54:44,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:54:44,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:54:44,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:54:44,198 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:54:44,200 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:54:44,202 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:54:44,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:54:44,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:54:44,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:54:44,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:54:44,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:54:44,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:54:44,215 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:54:44,217 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:54:44,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:54:44,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:54:44,219 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:54:44,220 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:54:44,220 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:54:44,220 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:54:44,223 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:54:44,223 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:54:44,224 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 [2018-10-24 18:54:44,252 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:54:44,252 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:54:44,253 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:54:44,253 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:54:44,253 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:54:44,253 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:54:44,253 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:54:44,254 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:54:44,254 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:54:44,254 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:54:44,254 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:54:44,254 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:54:44,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:54:44,256 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:54:44,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:54:44,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:54:44,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:54:44,257 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:54:44,258 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:54:44,258 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:54:44,258 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:54:44,258 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:54:44,258 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:54:44,259 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:54:44,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:54:44,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:54:44,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:54:44,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:54:44,260 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:54:44,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:54:44,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:54:44,260 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:54:44,261 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:54:44,261 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:54:44,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:54:44,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:54:44,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:54:44,349 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:54:44,349 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:54:44,350 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label53_false-unreach-call.c [2018-10-24 18:54:44,412 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/14e965136/ce4fcf5f2a34411ba4f083195f62f413/FLAGac7eb8060 [2018-10-24 18:54:45,184 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:54:45,185 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label53_false-unreach-call.c [2018-10-24 18:54:45,207 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/14e965136/ce4fcf5f2a34411ba4f083195f62f413/FLAGac7eb8060 [2018-10-24 18:54:45,223 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/14e965136/ce4fcf5f2a34411ba4f083195f62f413 [2018-10-24 18:54:45,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:54:45,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:54:45,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:54:45,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:54:45,242 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:54:45,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:54:45" (1/1) ... [2018-10-24 18:54:45,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f49102c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:45, skipping insertion in model container [2018-10-24 18:54:45,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:54:45" (1/1) ... [2018-10-24 18:54:45,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:54:45,394 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:54:46,450 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:54:46,455 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:54:46,852 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:54:46,874 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:54:46,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46 WrapperNode [2018-10-24 18:54:46,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:54:46,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:54:46,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:54:46,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:54:46,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:46,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:54:47,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:54:47,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:54:47,314 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:54:47,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... [2018-10-24 18:54:47,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:54:47,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:54:47,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:54:47,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:54:47,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:54:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:54:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:54:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:54:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:54:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:54:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:54:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:54:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:54:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:54:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:54:59,559 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:54:59,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:54:59 BoogieIcfgContainer [2018-10-24 18:54:59,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:54:59,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:54:59,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:54:59,566 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:54:59,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:54:45" (1/3) ... [2018-10-24 18:54:59,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51705c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:54:59, skipping insertion in model container [2018-10-24 18:54:59,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:54:46" (2/3) ... [2018-10-24 18:54:59,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51705c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:54:59, skipping insertion in model container [2018-10-24 18:54:59,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:54:59" (3/3) ... [2018-10-24 18:54:59,569 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label53_false-unreach-call.c [2018-10-24 18:54:59,579 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:54:59,588 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:54:59,606 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:54:59,650 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:54:59,650 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:54:59,650 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:54:59,650 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:54:59,651 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:54:59,651 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:54:59,651 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:54:59,651 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:54:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:54:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-24 18:54:59,694 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:54:59,695 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] [2018-10-24 18:54:59,697 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:54:59,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:59,704 INFO L82 PathProgramCache]: Analyzing trace with hash -294829202, now seen corresponding path program 1 times [2018-10-24 18:54:59,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:54:59,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:59,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:54:59,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:59,763 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:54:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:55:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:55:00,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:55:00,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:55:00,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:00,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:55:00,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:55:00,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:55:00,144 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:55:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:55:10,864 INFO L93 Difference]: Finished difference Result 2137 states and 3966 transitions. [2018-10-24 18:55:10,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:55:10,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-10-24 18:55:10,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:55:10,902 INFO L225 Difference]: With dead ends: 2137 [2018-10-24 18:55:10,902 INFO L226 Difference]: Without dead ends: 1527 [2018-10-24 18:55:10,918 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:55:10,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-10-24 18:55:11,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1513. [2018-10-24 18:55:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2018-10-24 18:55:11,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2344 transitions. [2018-10-24 18:55:11,091 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2344 transitions. Word has length 21 [2018-10-24 18:55:11,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:55:11,091 INFO L481 AbstractCegarLoop]: Abstraction has 1513 states and 2344 transitions. [2018-10-24 18:55:11,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:55:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2344 transitions. [2018-10-24 18:55:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-24 18:55:11,097 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:55:11,097 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:55:11,098 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:55:11,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:55:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash 22274303, now seen corresponding path program 1 times [2018-10-24 18:55:11,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:55:11,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:11,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:55:11,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:11,101 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:55:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:55:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:55:11,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:55:11,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:55:11,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:11,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:55:11,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:55:11,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:55:11,543 INFO L87 Difference]: Start difference. First operand 1513 states and 2344 transitions. Second operand 5 states. [2018-10-24 18:55:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:55:22,598 INFO L93 Difference]: Finished difference Result 4413 states and 7007 transitions. [2018-10-24 18:55:22,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:55:22,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-10-24 18:55:22,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:55:22,632 INFO L225 Difference]: With dead ends: 4413 [2018-10-24 18:55:22,633 INFO L226 Difference]: Without dead ends: 2906 [2018-10-24 18:55:22,639 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:55:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2018-10-24 18:55:22,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2873. [2018-10-24 18:55:22,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-10-24 18:55:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4204 transitions. [2018-10-24 18:55:22,744 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4204 transitions. Word has length 93 [2018-10-24 18:55:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:55:22,745 INFO L481 AbstractCegarLoop]: Abstraction has 2873 states and 4204 transitions. [2018-10-24 18:55:22,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:55:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4204 transitions. [2018-10-24 18:55:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 18:55:22,752 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:55:22,752 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:55:22,753 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:55:22,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:55:22,753 INFO L82 PathProgramCache]: Analyzing trace with hash -741912359, now seen corresponding path program 1 times [2018-10-24 18:55:22,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:55:22,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:22,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:55:22,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:22,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:55:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:55:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:55:23,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:55:23,194 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:55:23,195 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 97 with the following transitions: [2018-10-24 18:55:23,197 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [778], [780], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:55:23,265 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:55:23,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:55:24,568 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:55:43,419 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:55:43,421 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:55:43,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:55:43,432 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:55:45,025 INFO L232 lantSequenceWeakener]: Weakened 26 states. On average, predicates are now at 77.73% of their original sizes. [2018-10-24 18:55:45,025 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:56:15,037 INFO L413 sIntCurrentIteration]: We have 95 unified AI predicates [2018-10-24 18:56:15,037 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:56:15,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:56:15,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [7] total 30 [2018-10-24 18:56:15,038 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:56:15,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-24 18:56:15,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-24 18:56:15,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2018-10-24 18:56:15,040 INFO L87 Difference]: Start difference. First operand 2873 states and 4204 transitions. Second operand 25 states. Received shutdown request... [2018-10-24 18:58:49,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 18:58:49,552 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:58:49,557 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:58:49,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:58:49 BoogieIcfgContainer [2018-10-24 18:58:49,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:58:49,559 INFO L168 Benchmark]: Toolchain (without parser) took 244323.78 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 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 18:58:49,561 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. [2018-10-24 18:58:49,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1638.01 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:58:49,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 437.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 779.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -934.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:58:49,564 INFO L168 Benchmark]: Boogie Preprocessor took 239.39 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:58:49,565 INFO L168 Benchmark]: RCFGBuilder took 12007.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 462.2 MB). Peak memory consumption was 462.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:58:49,567 INFO L168 Benchmark]: TraceAbstraction took 229995.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -885.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-24 18:58:49,575 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 1638.01 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 437.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 779.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -934.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 239.39 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12007.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 462.2 MB). Peak memory consumption was 462.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229995.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -885.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 50). Cancelled while BasicCegarLoop was constructing difference of abstraction (2873states) and FLOYD_HOARE automaton (currently 21 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (569 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 229.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 176.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 786 SDtfs, 4692 SDslu, 660 SDs, 0 SdLazy, 6346 SolverSat, 1674 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 68.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 122 GetRequests, 66 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 39.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2873occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9906234817813766 AbsIntWeakeningRatio, 0.22105263157894736 AbsIntAvgWeakeningVarsNumRemoved, 754.5578947368421 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 47 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 62555 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 14/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown