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_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:07:56,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:07:56,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:07:56,231 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:07:56,231 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:07:56,232 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:07:56,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:07:56,236 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:07:56,238 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:07:56,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:07:56,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:07:56,241 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:07:56,242 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:07:56,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:07:56,251 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:07:56,252 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:07:56,252 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:07:56,258 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:07:56,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:07:56,265 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:07:56,266 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:07:56,272 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:07:56,275 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 22:07:56,275 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 22:07:56,275 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 22:07:56,276 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 22:07:56,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 22:07:56,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 22:07:56,279 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 22:07:56,280 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 22:07:56,280 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 22:07:56,281 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 22:07:56,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:07:56,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:07:56,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:07:56,285 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:07:56,285 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 22:07:56,315 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:07:56,316 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:07:56,316 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:07:56,320 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:07:56,320 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:07:56,320 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:07:56,320 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:07:56,321 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:07:56,321 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:07:56,321 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:07:56,321 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:07:56,321 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:07:56,323 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:07:56,323 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:07:56,323 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:07:56,323 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:07:56,323 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:07:56,323 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:07:56,324 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:07:56,324 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:07:56,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:07:56,324 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:07:56,324 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:07:56,325 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:07:56,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:07:56,326 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:07:56,326 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:07:56,327 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:07:56,327 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:07:56,327 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:07:56,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:07:56,327 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:07:56,327 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:07:56,328 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:07:56,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:07:56,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:07:56,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:07:56,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:07:56,417 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:07:56,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label17_true-unreach-call.c [2018-10-24 22:07:56,471 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/334be45e4/7244eda229114d96ae63d5dad65bb270/FLAG9abc5b26f [2018-10-24 22:07:57,166 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:07:57,167 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label17_true-unreach-call.c [2018-10-24 22:07:57,195 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/334be45e4/7244eda229114d96ae63d5dad65bb270/FLAG9abc5b26f [2018-10-24 22:07:57,216 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/334be45e4/7244eda229114d96ae63d5dad65bb270 [2018-10-24 22:07:57,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:07:57,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:07:57,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:07:57,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:07:57,238 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:07:57,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:07:57" (1/1) ... [2018-10-24 22:07:57,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2b640d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:57, skipping insertion in model container [2018-10-24 22:07:57,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:07:57" (1/1) ... [2018-10-24 22:07:57,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:07:57,381 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:07:58,388 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:07:58,394 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:07:58,765 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:07:58,789 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:07:58,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58 WrapperNode [2018-10-24 22:07:58,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:07:58,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:07:58,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:07:58,791 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:07:58,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:58,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:07:59,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:07:59,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:07:59,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:07:59,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (1/1) ... [2018-10-24 22:07:59,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:07:59,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:07:59,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:07:59,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:07:59,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (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 22:07:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:07:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:07:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:07:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:07:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:07:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:07:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:07:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:07:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:07:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:08:11,508 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:08:11,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:11 BoogieIcfgContainer [2018-10-24 22:08:11,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:08:11,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:08:11,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:08:11,517 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:08:11,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:07:57" (1/3) ... [2018-10-24 22:08:11,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2316455b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:08:11, skipping insertion in model container [2018-10-24 22:08:11,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:07:58" (2/3) ... [2018-10-24 22:08:11,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2316455b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:08:11, skipping insertion in model container [2018-10-24 22:08:11,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:11" (3/3) ... [2018-10-24 22:08:11,521 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label17_true-unreach-call.c [2018-10-24 22:08:11,532 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:08:11,543 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:08:11,563 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:08:11,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:08:11,610 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:08:11,610 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:08:11,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:08:11,610 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:08:11,611 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:08:11,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:08:11,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:08:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 22:08:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-24 22:08:11,659 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:08:11,660 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:08:11,663 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:08:11,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:08:11,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1741337806, now seen corresponding path program 1 times [2018-10-24 22:08:11,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:08:11,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:08:11,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:08:11,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:08:11,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:08:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:08:12,136 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 22:08:12,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:08:12,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:08:12,139 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:08:12,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:08:12,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:08:12,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:08:12,164 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 22:08:26,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:08:26,390 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-10-24 22:08:26,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:08:26,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2018-10-24 22:08:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:08:26,428 INFO L225 Difference]: With dead ends: 2133 [2018-10-24 22:08:26,429 INFO L226 Difference]: Without dead ends: 1523 [2018-10-24 22:08:26,443 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 22:08:26,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-10-24 22:08:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-10-24 22:08:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-10-24 22:08:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-10-24 22:08:26,589 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 45 [2018-10-24 22:08:26,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:08:26,590 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-10-24 22:08:26,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:08:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-10-24 22:08:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 22:08:26,601 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:08:26,601 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:26,602 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:08:26,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:08:26,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2085909177, now seen corresponding path program 1 times [2018-10-24 22:08:26,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:08:26,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:08:26,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:08:26,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:08:26,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:08:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:08:27,017 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:08:27,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:08:27,018 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:08:27,019 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-10-24 22:08:27,021 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [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 22:08:27,117 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:08:27,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:08:28,655 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:08:49,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:08:49,042 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 22:08:49,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:08:49,075 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:08:51,030 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 82.64% of their original sizes. [2018-10-24 22:08:51,030 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:09:34,080 INFO L413 sIntCurrentIteration]: We have 119 unified AI predicates [2018-10-24 22:09:34,081 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:09:34,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:09:34,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-10-24 22:09:34,082 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:09:34,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 22:09:34,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 22:09:34,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2018-10-24 22:09:34,085 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 20 states. Received shutdown request... [2018-10-24 22:12:07,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 22:12:07,692 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:12:07,699 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:12:07,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:12:07 BoogieIcfgContainer [2018-10-24 22:12:07,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:12:07,704 INFO L168 Benchmark]: Toolchain (without parser) took 250474.47 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 2.1 GB in the end (delta: -735.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 22:12:07,706 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. [2018-10-24 22:12:07,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1558.34 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 22:12:07,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 489.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -937.6 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:12:07,710 INFO L168 Benchmark]: Boogie Preprocessor took 290.01 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:12:07,711 INFO L168 Benchmark]: RCFGBuilder took 11941.51 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: 472.2 MB). Peak memory consumption was 472.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:12:07,715 INFO L168 Benchmark]: TraceAbstraction took 236189.78 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 2.1 GB in the end (delta: -435.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 22:12:07,725 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 1558.34 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 489.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -937.6 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 290.01 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11941.51 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: 472.2 MB). Peak memory consumption was 472.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236189.78 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 2.1 GB in the end (delta: -435.5 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: 122]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 122). Cancelled while BasicCegarLoop was constructing difference of abstraction (1516states) and FLOYD_HOARE automaton (currently 18 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (592 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 236.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 167.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 591 SDtfs, 2188 SDslu, 357 SDs, 0 SdLazy, 3904 SolverSat, 890 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 62.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 138 GetRequests, 78 SyntacticMatches, 27 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 49.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1516occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9925145442792502 AbsIntWeakeningRatio, 0.17647058823529413 AbsIntAvgWeakeningVarsNumRemoved, 771.2941176470588 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 63347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/38 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown