java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:04:32,329 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:04:32,331 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:04:32,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:04:32,346 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:04:32,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:04:32,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:04:32,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:04:32,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:04:32,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:04:32,353 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:04:32,354 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:04:32,355 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:04:32,356 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:04:32,357 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:04:32,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:04:32,358 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:04:32,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:04:32,365 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:04:32,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:04:32,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:04:32,372 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:04:32,379 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:04:32,379 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:04:32,379 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:04:32,380 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:04:32,383 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:04:32,384 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:04:32,385 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:04:32,386 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:04:32,386 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:04:32,390 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:04:32,391 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:04:32,391 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:04:32,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:04:32,395 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:04:32,395 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 18:04:32,421 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:04:32,424 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:04:32,424 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:04:32,425 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:04:32,425 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:04:32,425 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:04:32,425 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:04:32,425 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:04:32,426 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:04:32,426 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:04:32,426 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:04:32,428 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:04:32,428 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:04:32,428 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:04:32,428 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:04:32,429 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:04:32,429 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:04:32,429 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:04:32,429 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:04:32,431 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:04:32,431 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:04:32,431 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:04:32,432 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:04:32,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:04:32,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:04:32,432 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:04:32,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:04:32,433 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:04:32,433 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:04:32,433 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:04:32,433 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:04:32,434 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:04:32,434 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:04:32,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:04:32,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:04:32,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:04:32,504 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:04:32,504 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:04:32,505 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label39_true-unreach-call.c [2018-09-14 18:04:32,833 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be547a803/a000d559fcbb4813bd14a88f46767a76/FLAG8fc6c031e [2018-09-14 18:04:33,263 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:04:33,263 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label39_true-unreach-call.c [2018-09-14 18:04:33,296 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be547a803/a000d559fcbb4813bd14a88f46767a76/FLAG8fc6c031e [2018-09-14 18:04:33,317 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be547a803/a000d559fcbb4813bd14a88f46767a76 [2018-09-14 18:04:33,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:04:33,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:04:33,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:04:33,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:04:33,342 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:04:33,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:04:33" (1/1) ... [2018-09-14 18:04:33,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d32f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:33, skipping insertion in model container [2018-09-14 18:04:33,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:04:33" (1/1) ... [2018-09-14 18:04:33,359 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:04:34,383 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:04:34,407 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:04:35,143 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:04:35,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35 WrapperNode [2018-09-14 18:04:35,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:04:35,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:04:35,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:04:35,382 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:04:35,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:35,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:35,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:04:35,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:04:35,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:04:35,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:04:36,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... [2018-09-14 18:04:36,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:04:36,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:04:36,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:04:36,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:04:36,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-14 18:04:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:04:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:04:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:04:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:04:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:04:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:04:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:04:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:04:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:04:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:04:48,178 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:04:48,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:04:48 BoogieIcfgContainer [2018-09-14 18:04:48,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:04:48,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:04:48,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:04:48,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:04:48,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:04:33" (1/3) ... [2018-09-14 18:04:48,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50204f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:04:48, skipping insertion in model container [2018-09-14 18:04:48,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:04:35" (2/3) ... [2018-09-14 18:04:48,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50204f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:04:48, skipping insertion in model container [2018-09-14 18:04:48,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:04:48" (3/3) ... [2018-09-14 18:04:48,190 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label39_true-unreach-call.c [2018-09-14 18:04:48,202 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:04:48,215 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:04:48,293 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:04:48,294 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:04:48,294 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:04:48,294 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:04:48,294 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:04:48,294 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:04:48,295 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:04:48,295 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:04:48,295 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:04:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-14 18:04:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-14 18:04:48,347 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:04:48,348 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:04:48,350 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:04:48,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1351765020, now seen corresponding path program 1 times [2018-09-14 18:04:48,359 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:04:48,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:04:48,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:04:48,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:04:48,421 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:04:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:04:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:04:48,973 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:04:48,974 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:04:48,974 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:04:48,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:04:48,996 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:04:48,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:04:49,000 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-14 18:05:01,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:05:01,628 INFO L93 Difference]: Finished difference Result 2125 states and 3954 transitions. [2018-09-14 18:05:01,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:05:01,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2018-09-14 18:05:01,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:05:01,661 INFO L225 Difference]: With dead ends: 2125 [2018-09-14 18:05:01,661 INFO L226 Difference]: Without dead ends: 1515 [2018-09-14 18:05:01,674 INFO L604 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 [2018-09-14 18:05:01,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2018-09-14 18:05:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1043. [2018-09-14 18:05:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-09-14 18:05:01,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1647 transitions. [2018-09-14 18:05:01,806 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1647 transitions. Word has length 70 [2018-09-14 18:05:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:05:01,807 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 1647 transitions. [2018-09-14 18:05:01,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 18:05:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1647 transitions. [2018-09-14 18:05:01,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-14 18:05:01,816 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:05:01,816 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:05:01,817 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:05:01,817 INFO L82 PathProgramCache]: Analyzing trace with hash -118036814, now seen corresponding path program 1 times [2018-09-14 18:05:01,817 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:05:01,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:05:01,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:05:01,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:05:01,819 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:05:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:05:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:05:02,229 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:05:02,229 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:05:02,229 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:05:02,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:05:02,232 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:05:02,232 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:05:02,233 INFO L87 Difference]: Start difference. First operand 1043 states and 1647 transitions. Second operand 5 states. [2018-09-14 18:05:13,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:05:13,415 INFO L93 Difference]: Finished difference Result 3017 states and 4847 transitions. [2018-09-14 18:05:13,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:05:13,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2018-09-14 18:05:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:05:13,430 INFO L225 Difference]: With dead ends: 3017 [2018-09-14 18:05:13,431 INFO L226 Difference]: Without dead ends: 1980 [2018-09-14 18:05:13,435 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:05:13,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2018-09-14 18:05:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1954. [2018-09-14 18:05:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-14 18:05:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2892 transitions. [2018-09-14 18:05:13,518 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2892 transitions. Word has length 142 [2018-09-14 18:05:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:05:13,519 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2892 transitions. [2018-09-14 18:05:13,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:05:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2892 transitions. [2018-09-14 18:05:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-14 18:05:13,532 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:05:13,534 INFO L376 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, 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] [2018-09-14 18:05:13,534 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:05:13,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1553613114, now seen corresponding path program 1 times [2018-09-14 18:05:13,534 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:05:13,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:05:13,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:05:13,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:05:13,536 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:05:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:05:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:05:13,852 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:05:13,852 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:05:13,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:05:13,868 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:05:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:05:13,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:05:22,576 WARN L178 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 42 [2018-09-14 18:05:26,093 WARN L178 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2018-09-14 18:05:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:05:26,300 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:05:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:05:27,842 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:05:27,843 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-09-14 18:05:27,843 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:05:27,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:05:27,846 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:05:27,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=163, Unknown=2, NotChecked=0, Total=210 [2018-09-14 18:05:27,847 INFO L87 Difference]: Start difference. First operand 1954 states and 2892 transitions. Second operand 6 states. [2018-09-14 18:05:42,804 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:333) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:257) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:688) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:601) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-09-14 18:05:42,808 INFO L168 Benchmark]: Toolchain (without parser) took 69478.15 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -727.3 MB). Peak memory consumption was 448.1 MB. Max. memory is 7.1 GB. [2018-09-14 18:05:42,810 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-09-14 18:05:42,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2047.46 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-14 18:05:42,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 271.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-14 18:05:42,812 INFO L168 Benchmark]: Boogie Preprocessor took 855.21 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 939.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-09-14 18:05:42,813 INFO L168 Benchmark]: RCFGBuilder took 11671.44 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 457.2 MB). Peak memory consumption was 457.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:05:42,814 INFO L168 Benchmark]: TraceAbstraction took 54625.99 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 235.9 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -253.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 18:05:42,819 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 2047.46 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 271.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 855.21 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 939.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11671.44 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 457.2 MB). Peak memory consumption was 457.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 54625.99 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 235.9 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -253.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label39_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_18-05-42-837.csv Received shutdown request...