/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:08:50,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:08:50,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:08:50,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:08:50,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:08:50,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:08:50,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:08:50,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:08:50,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:08:50,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:08:50,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:08:50,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:08:50,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:08:50,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:08:50,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:08:50,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:08:50,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:08:50,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:08:50,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:08:50,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:08:50,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:08:50,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:08:50,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:08:50,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:08:50,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:08:50,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:08:50,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:08:50,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:08:50,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:08:50,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:08:50,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:08:50,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:08:50,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:08:50,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:08:50,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:08:50,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:08:50,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:08:50,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:08:50,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:08:50,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:08:50,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:08:50,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:08:50,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:08:50,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:08:50,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:08:50,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:08:50,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:08:50,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:08:50,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:08:50,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:08:50,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:08:50,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:08:50,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:08:50,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:08:50,430 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:08:50,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:08:50,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:08:50,431 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:08:50,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:08:50,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:08:50,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:08:50,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:08:50,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:08:50,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:08:50,433 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:08:50,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:08:50,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:08:50,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:08:50,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:08:50,776 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:08:50,777 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-07-08 16:08:50,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07bbbfb2/45f1ef7b667441dd9beaeebe73b7f49b/FLAGb2a50bf75 [2020-07-08 16:08:51,347 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:08:51,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-07-08 16:08:51,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07bbbfb2/45f1ef7b667441dd9beaeebe73b7f49b/FLAGb2a50bf75 [2020-07-08 16:08:51,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07bbbfb2/45f1ef7b667441dd9beaeebe73b7f49b [2020-07-08 16:08:51,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:08:51,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:08:51,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:08:51,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:08:51,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:08:51,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:51,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6204d8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51, skipping insertion in model container [2020-07-08 16:08:51,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:51,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:08:51,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:08:51,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:08:51,945 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:08:51,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:08:51,991 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:08:51,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51 WrapperNode [2020-07-08 16:08:51,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:08:51,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:08:51,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:08:51,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:08:52,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (1/1) ... [2020-07-08 16:08:52,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:08:52,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:08:52,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:08:52,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:08:52,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (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 [2020-07-08 16:08:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:08:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:08:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-08 16:08:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-08 16:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-08 16:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:08:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:08:52,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:08:52,434 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 16:08:52,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:08:52 BoogieIcfgContainer [2020-07-08 16:08:52,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:08:52,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:08:52,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:08:52,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:08:52,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:08:51" (1/3) ... [2020-07-08 16:08:52,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc0e881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:08:52, skipping insertion in model container [2020-07-08 16:08:52,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:08:51" (2/3) ... [2020-07-08 16:08:52,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc0e881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:08:52, skipping insertion in model container [2020-07-08 16:08:52,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:08:52" (3/3) ... [2020-07-08 16:08:52,450 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-07-08 16:08:52,464 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:08:52,475 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:08:52,497 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:08:52,533 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:08:52,533 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:08:52,534 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:08:52,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:08:52,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:08:52,534 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:08:52,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:08:52,535 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:08:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-08 16:08:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-08 16:08:52,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:08:52,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:08:52,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:08:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:08:52,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-07-08 16:08:52,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:08:52,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869157994] [2020-07-08 16:08:52,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:08:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:08:52,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:08:52,771 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:799) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:883) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 16:08:52,778 INFO L168 Benchmark]: Toolchain (without parser) took 1071.72 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 152.2 MB in the end (delta: -51.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-07-08 16:08:52,779 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 16:08:52,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.82 ms. Allocated memory is still 134.7 MB. Free memory was 100.3 MB in the beginning and 90.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:08:52,782 INFO L168 Benchmark]: Boogie Preprocessor took 33.35 ms. Allocated memory is still 134.7 MB. Free memory was 90.6 MB in the beginning and 89.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:08:52,784 INFO L168 Benchmark]: RCFGBuilder took 413.79 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 89.1 MB in the beginning and 164.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:08:52,785 INFO L168 Benchmark]: TraceAbstraction took 332.75 ms. Allocated memory is still 199.2 MB. Free memory was 164.1 MB in the beginning and 152.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:08:52,790 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.82 ms. Allocated memory is still 134.7 MB. Free memory was 100.3 MB in the beginning and 90.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.35 ms. Allocated memory is still 134.7 MB. Free memory was 90.6 MB in the beginning and 89.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.79 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 89.1 MB in the beginning and 164.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 332.75 ms. Allocated memory is still 199.2 MB. Free memory was 164.1 MB in the beginning and 152.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...