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_label54_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:55:31,355 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:55:31,357 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:55:31,374 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:55:31,374 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:55:31,375 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:55:31,376 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:55:31,378 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:55:31,380 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:55:31,381 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:55:31,382 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:55:31,382 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:55:31,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:55:31,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:55:31,385 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:55:31,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:55:31,387 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:55:31,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:55:31,390 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:55:31,392 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:55:31,393 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:55:31,394 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:55:31,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:55:31,397 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:55:31,398 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:55:31,399 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:55:31,400 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:55:31,401 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:55:31,401 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:55:31,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:55:31,403 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:55:31,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:55:31,404 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:55:31,404 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:55:31,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:55:31,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:55:31,406 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 18:55:31,424 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:55:31,425 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:55:31,426 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:55:31,426 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:55:31,426 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:55:31,426 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:55:31,426 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:55:31,427 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:55:31,430 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:55:31,430 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:55:31,430 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:55:31,430 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:55:31,431 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:55:31,431 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:55:31,432 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:55:31,432 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:55:31,432 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:55:31,432 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:55:31,432 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:55:31,433 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:55:31,434 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:55:31,434 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:55:31,434 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:55:31,434 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:55:31,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:55:31,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:55:31,435 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:55:31,435 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:55:31,435 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:55:31,436 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:55:31,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:55:31,436 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:55:31,436 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:55:31,436 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:55:31,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:55:31,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:55:31,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:55:31,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:55:31,502 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:55:31,503 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label54_false-unreach-call.c [2018-10-24 18:55:31,562 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c6f3ccf8/2e7ec49e5ed54b579503fdcc3cdf8aee/FLAG61742ead1 [2018-10-24 18:55:32,316 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:55:32,317 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label54_false-unreach-call.c [2018-10-24 18:55:32,349 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c6f3ccf8/2e7ec49e5ed54b579503fdcc3cdf8aee/FLAG61742ead1 [2018-10-24 18:55:32,365 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c6f3ccf8/2e7ec49e5ed54b579503fdcc3cdf8aee [2018-10-24 18:55:32,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:55:32,379 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:55:32,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:55:32,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:55:32,384 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:55:32,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:55:32" (1/1) ... [2018-10-24 18:55:32,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c6a2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:32, skipping insertion in model container [2018-10-24 18:55:32,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:55:32" (1/1) ... [2018-10-24 18:55:32,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:55:32,548 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:55:33,705 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:55:33,710 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:55:34,103 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:55:34,129 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:55:34,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34 WrapperNode [2018-10-24 18:55:34,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:55:34,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:55:34,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:55:34,132 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:55:34,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:55:34,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:55:34,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:55:34,636 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:55:34,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (1/1) ... [2018-10-24 18:55:34,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:55:34,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:55:34,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:55:34,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:55:34,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (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 18:55:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:55:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:55:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:55:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:55:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:55:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:55:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:55:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:55:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:55:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:55:46,189 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:55:46,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:55:46 BoogieIcfgContainer [2018-10-24 18:55:46,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:55:46,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:55:46,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:55:46,195 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:55:46,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:55:32" (1/3) ... [2018-10-24 18:55:46,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbd4517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:55:46, skipping insertion in model container [2018-10-24 18:55:46,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:55:34" (2/3) ... [2018-10-24 18:55:46,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbd4517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:55:46, skipping insertion in model container [2018-10-24 18:55:46,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:55:46" (3/3) ... [2018-10-24 18:55:46,200 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label54_false-unreach-call.c [2018-10-24 18:55:46,212 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:55:46,221 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:55:46,241 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:55:46,296 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:55:46,297 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:55:46,297 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:55:46,297 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:55:46,297 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:55:46,298 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:55:46,298 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:55:46,298 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:55:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:55:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-24 18:55:46,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:55:46,359 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] [2018-10-24 18:55:46,361 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:55:46,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:55:46,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1533531428, now seen corresponding path program 1 times [2018-10-24 18:55:46,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:55:46,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:46,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:55:46,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:46,423 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:55:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:55:46,721 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 18:55:46,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:55:46,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:55:46,724 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:46,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:55:46,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:55:46,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:55:46,745 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:55:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:55:57,258 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-24 18:55:57,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:55:57,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-10-24 18:55:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:55:57,291 INFO L225 Difference]: With dead ends: 2162 [2018-10-24 18:55:57,291 INFO L226 Difference]: Without dead ends: 1552 [2018-10-24 18:55:57,305 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 18:55:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-24 18:55:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-24 18:55:57,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-24 18:55:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-24 18:55:57,456 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 20 [2018-10-24 18:55:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:55:57,457 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-24 18:55:57,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:55:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-24 18:55:57,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-24 18:55:57,464 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:55:57,464 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:55:57,465 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:55:57,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:55:57,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1982050186, now seen corresponding path program 1 times [2018-10-24 18:55:57,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:55:57,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:57,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:55:57,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:55:57,467 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:55:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:55:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:55:57,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:55:57,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:55:57,897 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:57,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:55:57,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:55:57,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:55:57,902 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-24 18:56:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:56:16,629 INFO L93 Difference]: Finished difference Result 5786 states and 10682 transitions. [2018-10-24 18:56:16,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:56:16,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-10-24 18:56:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:56:16,664 INFO L225 Difference]: With dead ends: 5786 [2018-10-24 18:56:16,664 INFO L226 Difference]: Without dead ends: 4267 [2018-10-24 18:56:16,685 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:56:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2018-10-24 18:56:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4243. [2018-10-24 18:56:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2018-10-24 18:56:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6361 transitions. [2018-10-24 18:56:16,841 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6361 transitions. Word has length 99 [2018-10-24 18:56:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:56:16,842 INFO L481 AbstractCegarLoop]: Abstraction has 4243 states and 6361 transitions. [2018-10-24 18:56:16,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:56:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6361 transitions. [2018-10-24 18:56:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-24 18:56:16,846 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:56:16,848 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:56:16,848 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:56:16,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:16,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1539737542, now seen corresponding path program 1 times [2018-10-24 18:56:16,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:56:16,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:16,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:56:16,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:16,850 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:56:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:56:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:56:17,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:56:17,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:56:17,251 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:56:17,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:56:17,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:56:17,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:56:17,253 INFO L87 Difference]: Start difference. First operand 4243 states and 6361 transitions. Second operand 6 states. [2018-10-24 18:56:23,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:56:23,270 INFO L93 Difference]: Finished difference Result 12712 states and 20702 transitions. [2018-10-24 18:56:23,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:56:23,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-10-24 18:56:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:56:23,338 INFO L225 Difference]: With dead ends: 12712 [2018-10-24 18:56:23,338 INFO L226 Difference]: Without dead ends: 8475 [2018-10-24 18:56:23,366 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:56:23,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8475 states. [2018-10-24 18:56:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8475 to 8390. [2018-10-24 18:56:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8390 states. [2018-10-24 18:56:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8390 states to 8390 states and 12580 transitions. [2018-10-24 18:56:23,640 INFO L78 Accepts]: Start accepts. Automaton has 8390 states and 12580 transitions. Word has length 100 [2018-10-24 18:56:23,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:56:23,641 INFO L481 AbstractCegarLoop]: Abstraction has 8390 states and 12580 transitions. [2018-10-24 18:56:23,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:56:23,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8390 states and 12580 transitions. [2018-10-24 18:56:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 18:56:23,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:56:23,647 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:56:23,647 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:56:23,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:23,648 INFO L82 PathProgramCache]: Analyzing trace with hash -724720364, now seen corresponding path program 1 times [2018-10-24 18:56:23,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:56:23,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:23,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:56:23,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:23,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:56:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:56:23,989 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:56:24,144 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 18:56:24,145 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:56:24,145 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:56:24,146 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-10-24 18:56:24,148 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [770], [772], [775], [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], [1224], [1228], [1232], [1236], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:56:24,213 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:56:24,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:56:25,540 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:56:45,066 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:56:45,067 INFO L272 AbstractInterpreter]: Visited 87 different actions 573 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 18:56:45,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:45,081 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:56:47,974 INFO L232 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 77.3% of their original sizes. [2018-10-24 18:56:47,974 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:57:55,762 INFO L413 sIntCurrentIteration]: We have 173 unified AI predicates [2018-10-24 18:57:55,763 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:57:55,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:57:55,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [6] total 31 [2018-10-24 18:57:55,764 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:57:55,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-24 18:57:55,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-24 18:57:55,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2018-10-24 18:57:55,766 INFO L87 Difference]: Start difference. First operand 8390 states and 12580 transitions. Second operand 27 states. Received shutdown request... [2018-10-24 18:59:42,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 18:59:42,139 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:59:42,145 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:59:42,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:59:42 BoogieIcfgContainer [2018-10-24 18:59:42,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:59:42,146 INFO L168 Benchmark]: Toolchain (without parser) took 249768.80 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.5 GB). Peak memory consumption was 128.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:59:42,148 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:59:42,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1750.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:59:42,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 504.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -862.9 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:59:42,150 INFO L168 Benchmark]: Boogie Preprocessor took 258.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:59:42,151 INFO L168 Benchmark]: RCFGBuilder took 11295.80 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 464.4 MB). Peak memory consumption was 464.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:59:42,153 INFO L168 Benchmark]: TraceAbstraction took 235954.30 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.8 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:59:42,158 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1750.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 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 504.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -862.9 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 258.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11295.80 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 464.4 MB). Peak memory consumption was 464.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235954.30 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.8 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 47). Cancelled while BasicCegarLoop was constructing difference of abstraction (8390states) and FLOYD_HOARE automaton (currently 18 states, 27 states before enhancement),while ReachableStatesComputation was computing reachable states (284 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 235.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 141.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 677 SDtfs, 6641 SDslu, 807 SDs, 0 SdLazy, 9613 SolverSat, 3136 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 55.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 205 GetRequests, 113 SyntacticMatches, 45 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 72.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8390occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9934904401956424 AbsIntWeakeningRatio, 0.15606936416184972 AbsIntAvgWeakeningVarsNumRemoved, 826.0578034682081 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 136 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 393 NumberOfCodeBlocks, 393 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 195119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 122/127 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown